From personal_submersibles at psubs.org Wed May 1 13:14:58 2024 From: personal_submersibles at psubs.org (Rick Patton via Personal_Submersibles) Date: Wed, 1 May 2024 07:14:58 -1000 Subject: [PSUBS-MAILIST] connectors Message-ID: Was wondering where the best place would be to purchase two prong underwater connectors? I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 16:13:08 2024 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Wed, 1 May 2024 20:13:08 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: Message-ID: <2002782364.6026777.1714594388988@mail.yahoo.com> Rick, there are a few options.? If you want a commercial grade connector Subconn is an option.? Tell them you are with PSUBS and they'll give you a 30% discount.? Suburban marine is a DIY option that is likely cheaper than even the Subconn discount.? Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own.? I am using Tyco connectors for both my low voltage instruments and my higher power components. Jon On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: Was wondering where the best place would be to purchase?two prong underwater connectors?I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 16:28:19 2024 From: personal_submersibles at psubs.org (Alan James via Personal_Submersibles) Date: Wed, 1 May 2024 20:28:19 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: Message-ID: <1044826820.6052382.1714595299082@mail.yahoo.com> Rick,I believe you can get connectors tailor made to your required length & with the fittings you want on both ends.For instance you may want a plug with a threaded male fitting to screw in to your lights, with a quick connect fitting on to the through-hull.?I think sub conn offered that. Jon would know.Alan Yahoo Mail: Search, organise, conquer On Thu, 2 May 2024 at 7:43 am, Rick Patton via Personal_Submersibles wrote: Was wondering where the best place would be to purchase?two prong underwater connectors?I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 17:12:30 2024 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Wed, 01 May 2024 21:12:30 +0000 Subject: [PSUBS-MAILIST] connectors In-Reply-To: <2002782364.6026777.1714594388988@mail.yahoo.com> References: <2002782364.6026777.1714594388988@mail.yahoo.com> Message-ID: I will add to this that in addition to the SubConn / Impulse type wet or underwater pluggable connectors, in industrial / commercial applications I have also frequently made use of Conax connectors - particularly for high pressures. https://www.conaxtechnologies.com/ Sean -------- Original Message -------- On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles wrote: > Rick, there are a few options. If you want a commercial grade connector Subconn is an option. Tell them you are with PSUBS and they'll give you a 30% discount. Suburban marine is a DIY option that is likely cheaper than even the Subconn discount. Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own. I am using Tyco connectors for both my low voltage instruments and my higher power components. > > Jon > > On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: > > Was wondering where the best place would be to purchase two prong underwater connectors? > I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . > > Rick > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 17:33:53 2024 From: personal_submersibles at psubs.org (Justin Helland via Personal_Submersibles) Date: Wed, 1 May 2024 14:33:53 -0700 Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: <2002782364.6026777.1714594388988@mail.yahoo.com> Message-ID: Just wanted to give you guys a heads up, I recently tried to place an order for Subconns and mentioned that I was with Psubs, and they refused to sell them to me for a manned submersible. There might be some kind of regulation/safety issue that they're trying to cover themselves from. I would definitely skip mentioning that you're buying them for a manned sub, maybe tell them it's for an ROV or something. On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > I will add to this that in addition to the SubConn / Impulse type wet or > underwater pluggable connectors, in industrial / commercial applications I > have also frequently made use of Conax connectors - particularly for high > pressures. > > https://www.conaxtechnologies.com/ > > Sean > > > > > -------- Original Message -------- > On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > Rick, there are a few options. If you want a commercial grade connector > Subconn is an option. Tell them you are with PSUBS and they'll give you a > 30% discount. Suburban marine is a DIY option that is likely cheaper than > even the Subconn discount. Lastly, depending upon the amps you need you > could use Tyco connectors from Digikey and make your own. I am using Tyco > connectors for both my low voltage instruments and my higher power > components. > > Jon > > > On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via > Personal_Submersibles wrote: > > > Was wondering where the best place would be to purchase two prong > underwater connectors? > I was getting ready to pot my wire connections for my 6 outside lights and > then realized that it would be much better to be able to easily disconnect > them when they go bad and not have to re pot them . > > Rick > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 17:41:37 2024 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Wed, 1 May 2024 21:41:37 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: <2002782364.6026777.1714594388988@mail.yahoo.com> Message-ID: <623062587.6078752.1714599697831@mail.yahoo.com> I have worked with Jacobo Aguilar for years when purchasing all kinds of Subconn connectors and never had an issue with not selling product because of being for a manned submersible.? His contact info is below: | | Jacobo?Aguilar? | | | Item?Sales?Manager | | | MacArtney?Inc.???Gulf?of?Mexico?Operations | | | | | Office:? | +1?713?266?7575 | | Mobile:? | +1?713?504?1757 | | Email:? | jag at macartney.com | | Website:? | www.macartney.com | | | Best Cliff On Wednesday, May 1, 2024 at 04:34:51 PM CDT, Justin Helland via Personal_Submersibles wrote: Just wanted to give you guys a heads up, I recently tried to place an order for Subconns and mentioned that I was with Psubs, and they refused to sell them to me for a manned submersible. There might be some kind of regulation/safety issue that they're trying to cover themselves from. I would definitely skip mentioning that you're buying them for a manned sub, maybe tell them it's for an ROV or something. On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles wrote: I will add to this that in addition to the SubConn / Impulse type wet or underwater pluggable connectors, in industrial / commercial applications I have also frequently made use of Conax connectors - particularly for high pressures. https://www.conaxtechnologies.com/ Sean -------- Original Message -------- On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Rick, there are a few options.? If you want a commercial grade connector Subconn is an option.? Tell them you are with PSUBS and they'll give you a 30% discount.? Suburban marine is a DIY option that is likely cheaper than even the Subconn discount.? Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own.? I am using Tyco connectors for both my low voltage instruments and my higher power components. Jon On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: Was wondering where the best place would be to purchase?two prong underwater connectors?I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 17:59:25 2024 From: personal_submersibles at psubs.org (Justin Helland via Personal_Submersibles) Date: Wed, 1 May 2024 14:59:25 -0700 Subject: [PSUBS-MAILIST] connectors In-Reply-To: <623062587.6078752.1714599697831@mail.yahoo.com> References: <2002782364.6026777.1714594388988@mail.yahoo.com> <623062587.6078752.1714599697831@mail.yahoo.com> Message-ID: Jacobo is who I contacted. It may be a new regulation or something, I'm not sure. He may be willing to sell Subconns for connecting internal wires, but he wouldn't sell anything that was hull-penetrating. On Wed, May 1, 2024 at 2:42?PM Cliff Redus via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > I have worked with Jacobo Aguilar for years when purchasing all kinds of > Subconn connectors and never had an issue with not selling product because > of being for a manned submersible. His contact info is below: > > > Jacobo Aguilar? > Item Sales Manager > MacArtney Inc. ? Gulf of Mexico Operations > Office: +1 713 266 7575 > Mobile: +1 713 504 1757 > Email: jag at macartney.com > Website: www.macartney.com > Best > > Cliff > > > On Wednesday, May 1, 2024 at 04:34:51 PM CDT, Justin Helland via > Personal_Submersibles wrote: > > > Just wanted to give you guys a heads up, I recently tried to place an > order for Subconns and mentioned that I was with Psubs, and they refused to > sell them to me for a manned submersible. There might be some kind of > regulation/safety issue that they're trying to cover themselves from. I > would definitely skip mentioning that you're buying them for a manned sub, > maybe tell them it's for an ROV or something. > > On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles > wrote: > > I will add to this that in addition to the SubConn / Impulse type wet or > underwater pluggable connectors, in industrial / commercial applications I > have also frequently made use of Conax connectors - particularly for high > pressures. > > https://www.conaxtechnologies.com/ > > Sean > > > > > -------- Original Message -------- > On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > Rick, there are a few options. If you want a commercial grade connector > Subconn is an option. Tell them you are with PSUBS and they'll give you a > 30% discount. Suburban marine is a DIY option that is likely cheaper than > even the Subconn discount. Lastly, depending upon the amps you need you > could use Tyco connectors from Digikey and make your own. I am using Tyco > connectors for both my low voltage instruments and my higher power > components. > > Jon > > > On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via > Personal_Submersibles wrote: > > > Was wondering where the best place would be to purchase two prong > underwater connectors? > I was getting ready to pot my wire connections for my 6 outside lights and > then realized that it would be much better to be able to easily disconnect > them when they go bad and not have to re pot them . > > Rick > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 18:06:52 2024 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Wed, 01 May 2024 22:06:52 +0000 Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: <2002782364.6026777.1714594388988@mail.yahoo.com> Message-ID: <8posEhFJvvACU1pJp2Jprim0gpFY_3LOI7IXOSf31-w6ELU-zkY4MqiJOiXypODFvQK_KltEuCZG4TBP1S8yq-ZThV0UPbig2OrT0wurqSY=@protonmail.com> Sorry - glands, not connectors. They do make electrode penetrators though which are useful for power conductors when you make the connections externally. Sean -------- Original Message -------- On May 1, 2024, 15:12, Sean T. Stevenson via Personal_Submersibles wrote: > I will add to this that in addition to the SubConn / Impulse type wet or underwater pluggable connectors, in industrial / commercial applications I have also frequently made use of Conax connectors - particularly for high pressures. > > https://www.conaxtechnologies.com/ > > Sean > > -------- Original Message -------- > On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles wrote: > >> Rick, there are a few options. If you want a commercial grade connector Subconn is an option. Tell them you are with PSUBS and they'll give you a 30% discount. Suburban marine is a DIY option that is likely cheaper than even the Subconn discount. Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own. I am using Tyco connectors for both my low voltage instruments and my higher power components. >> >> Jon >> >> On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: >> >> Was wondering where the best place would be to purchase two prong underwater connectors? >> I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . >> >> Rick >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 18:38:07 2024 From: personal_submersibles at psubs.org (Alan James via Personal_Submersibles) Date: Wed, 1 May 2024 22:38:07 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: <2002782364.6026777.1714594388988@mail.yahoo.com> <623062587.6078752.1714599697831@mail.yahoo.com> Message-ID: <237069932.6083298.1714603087261@mail.yahoo.com> I have a facebook friend (I don't know why)that is a Chinese sales rep for a firm specializing in underwater Connectors.?They look to have a good variety of items including Sub Conn compatible connectors. If you have trouble buying from Sub Conn you could try them. Most probably a lot less expensive.https://unirsea.com/?fbclid=IwAR2zMUubs4SCtG1BmV6g5Ln0uu7z0PGMSlcslB63WI4BsFLlX2B6VtLq_UwAlan Yahoo Mail: Search, organise, conquer On Thu, 2 May 2024 at 10:01 am, Justin Helland via Personal_Submersibles wrote: _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 19:04:17 2024 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Wed, 1 May 2024 23:04:17 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: References: <2002782364.6026777.1714594388988@mail.yahoo.com> <623062587.6078752.1714599697831@mail.yahoo.com> Message-ID: <1437103328.6088759.1714604657845@mail.yahoo.com> This is news to me.? I am wondering if this is fall out from the Titan disaster.?? Cliff On Wednesday, May 1, 2024 at 05:00:28 PM CDT, Justin Helland via Personal_Submersibles wrote: Jacobo is who I contacted. It may be a new regulation or something, I'm not sure. He may be willing to sell Subconns for connecting internal wires, but he wouldn't sell anything that was hull-penetrating. On Wed, May 1, 2024 at 2:42?PM Cliff Redus via Personal_Submersibles wrote: I have worked with Jacobo Aguilar for years when purchasing all kinds of Subconn connectors and never had an issue with not selling product because of being for a manned submersible.? His contact info is below: | | Jacobo?Aguilar? | | | Item?Sales?Manager | | | MacArtney?Inc.???Gulf?of?Mexico?Operations | | | | | Office:? | +1?713?266?7575 | | Mobile:? | +1?713?504?1757 | | Email:? | jag at macartney.com | | Website:? | www.macartney.com | | | Best Cliff On Wednesday, May 1, 2024 at 04:34:51 PM CDT, Justin Helland via Personal_Submersibles wrote: Just wanted to give you guys a heads up, I recently tried to place an order for Subconns and mentioned that I was with Psubs, and they refused to sell them to me for a manned submersible. There might be some kind of regulation/safety issue that they're trying to cover themselves from. I would definitely skip mentioning that you're buying them for a manned sub, maybe tell them it's for an ROV or something. On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles wrote: I will add to this that in addition to the SubConn / Impulse type wet or underwater pluggable connectors, in industrial / commercial applications I have also frequently made use of Conax connectors - particularly for high pressures. https://www.conaxtechnologies.com/ Sean -------- Original Message -------- On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Rick, there are a few options.? If you want a commercial grade connector Subconn is an option.? Tell them you are with PSUBS and they'll give you a 30% discount.? Suburban marine is a DIY option that is likely cheaper than even the Subconn discount.? Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own.? I am using Tyco connectors for both my low voltage instruments and my higher power components. Jon On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: Was wondering where the best place would be to purchase?two prong underwater connectors?I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 19:51:28 2024 From: personal_submersibles at psubs.org (John Bussard via Personal_Submersibles) Date: Wed, 1 May 2024 16:51:28 -0700 Subject: [PSUBS-MAILIST] connectors In-Reply-To: <1437103328.6088759.1714604657845@mail.yahoo.com> References: <1437103328.6088759.1714604657845@mail.yahoo.com> Message-ID: <7C00B1A0-37F1-4FD7-AC9F-7E1E86CA8215@gmail.com> An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 19:58:45 2024 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Wed, 1 May 2024 23:58:45 +0000 (UTC) Subject: [PSUBS-MAILIST] connectors In-Reply-To: <7C00B1A0-37F1-4FD7-AC9F-7E1E86CA8215@gmail.com> References: <1437103328.6088759.1714604657845@mail.yahoo.com> <7C00B1A0-37F1-4FD7-AC9F-7E1E86CA8215@gmail.com> Message-ID: <2118786608.6104621.1714607925100@mail.yahoo.com> Wow, that's news to me.? Thanks for letting us know and I guess I'll talk to my contact at Subconn tomorrow to see what's going on.? The TITAN disaster is the only thing that makes sense.? As John suggested, maybe tell them it's for an ROV and see if that helps although if you mention PSUBS they'll likely assume it's for a manned vessel...which leaves you paying retail. Jon On Wednesday, May 1, 2024 at 07:54:35 PM EDT, John Bussard via Personal_Submersibles wrote: I was just thinking the same Cliff. Sent from my iPhone On May 1, 2024, at 16:05, Cliff Redus via Personal_Submersibles wrote: ? This is news to me.? I am wondering if this is fall out from the Titan disaster.?? Cliff On Wednesday, May 1, 2024 at 05:00:28 PM CDT, Justin Helland via Personal_Submersibles wrote: Jacobo is who I contacted. It may be a new regulation or something, I'm not sure. He may be willing to sell Subconns for connecting internal wires, but he wouldn't sell anything that was hull-penetrating. On Wed, May 1, 2024 at 2:42?PM Cliff Redus via Personal_Submersibles wrote: I have worked with Jacobo Aguilar for years when purchasing all kinds of Subconn connectors and never had an issue with not selling product because of being for a manned submersible.? His contact info is below: | | Jacobo?Aguilar? | | | Item?Sales?Manager | | | MacArtney?Inc.???Gulf?of?Mexico?Operations | | | | | Office:? | +1?713?266?7575 | | Mobile:? | +1?713?504?1757 | | Email:? | jag at macartney.com | | Website:? | www.macartney.com | | | Best Cliff On Wednesday, May 1, 2024 at 04:34:51 PM CDT, Justin Helland via Personal_Submersibles wrote: Just wanted to give you guys a heads up, I recently tried to place an order for Subconns and mentioned that I was with Psubs, and they refused to sell them to me for a manned submersible. There might be some kind of regulation/safety issue that they're trying to cover themselves from. I would definitely skip mentioning that you're buying them for a manned sub, maybe tell them it's for an ROV or something. On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles wrote: I will add to this that in addition to the SubConn / Impulse type wet or underwater pluggable connectors, in industrial / commercial applications I have also frequently made use of Conax connectors - particularly for high pressures. https://www.conaxtechnologies.com/ Sean -------- Original Message -------- On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Rick, there are a few options.? If you want a commercial grade connector Subconn is an option.? Tell them you are with PSUBS and they'll give you a 30% discount.? Suburban marine is a DIY option that is likely cheaper than even the Subconn discount.? Lastly, depending upon the amps you need you could use Tyco connectors from Digikey and make your own.? I am using Tyco connectors for both my low voltage instruments and my higher power components. Jon On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via Personal_Submersibles wrote: Was wondering where the best place would be to purchase?two prong underwater connectors?I was getting ready to pot my wire connections for my 6 outside lights and then realized that it would be much better to be able to easily disconnect them when they go bad and not have to re pot them . Rick_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 1 20:03:03 2024 From: personal_submersibles at psubs.org (Justin Helland via Personal_Submersibles) Date: Wed, 1 May 2024 17:03:03 -0700 Subject: [PSUBS-MAILIST] connectors In-Reply-To: <2118786608.6104621.1714607925100@mail.yahoo.com> References: <1437103328.6088759.1714604657845@mail.yahoo.com> <7C00B1A0-37F1-4FD7-AC9F-7E1E86CA8215@gmail.com> <2118786608.6104621.1714607925100@mail.yahoo.com> Message-ID: Agreed, that would be a likely explanation for it. Jacobo did say that they were working on developing a new connector rated for manned vessels but that they would be quite a bit more expensive. On Wed, May 1, 2024 at 4:59?PM Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Wow, that's news to me. Thanks for letting us know and I guess I'll talk > to my contact at Subconn tomorrow to see what's going on. The TITAN > disaster is the only thing that makes sense. As John suggested, maybe tell > them it's for an ROV and see if that helps although if you mention PSUBS > they'll likely assume it's for a manned vessel...which leaves you paying > retail. > > Jon > > > On Wednesday, May 1, 2024 at 07:54:35 PM EDT, John Bussard via > Personal_Submersibles wrote: > > > I was just thinking the same Cliff. > Sent from my iPhone > > On May 1, 2024, at 16:05, Cliff Redus via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > ? > This is news to me. I am wondering if this is fall out from the Titan > disaster. > > Cliff > > On Wednesday, May 1, 2024 at 05:00:28 PM CDT, Justin Helland via > Personal_Submersibles wrote: > > > Jacobo is who I contacted. It may be a new regulation or something, I'm > not sure. He may be willing to sell Subconns for connecting internal wires, > but he wouldn't sell anything that was hull-penetrating. > > On Wed, May 1, 2024 at 2:42?PM Cliff Redus via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > I have worked with Jacobo Aguilar for years when purchasing all kinds of > Subconn connectors and never had an issue with not selling product because > of being for a manned submersible. His contact info is below: > > > Jacobo Aguilar? > Item Sales Manager > MacArtney Inc. ? Gulf of Mexico Operations > Office: +1 713 266 7575 > Mobile: +1 713 504 1757 > Email: jag at macartney.com > Website: www.macartney.com > Best > > Cliff > > > On Wednesday, May 1, 2024 at 04:34:51 PM CDT, Justin Helland via > Personal_Submersibles wrote: > > > Just wanted to give you guys a heads up, I recently tried to place an > order for Subconns and mentioned that I was with Psubs, and they refused to > sell them to me for a manned submersible. There might be some kind of > regulation/safety issue that they're trying to cover themselves from. I > would definitely skip mentioning that you're buying them for a manned sub, > maybe tell them it's for an ROV or something. > > On Wed, May 1, 2024 at 2:13?PM Sean T. Stevenson via Personal_Submersibles > wrote: > > I will add to this that in addition to the SubConn / Impulse type wet or > underwater pluggable connectors, in industrial / commercial applications I > have also frequently made use of Conax connectors - particularly for high > pressures. > > https://www.conaxtechnologies.com/ > > Sean > > > > > -------- Original Message -------- > On May 1, 2024, 14:13, Jon Wallace via Personal_Submersibles < > personal_submersibles at psubs.org> wrote: > > > Rick, there are a few options. If you want a commercial grade connector > Subconn is an option. Tell them you are with PSUBS and they'll give you a > 30% discount. Suburban marine is a DIY option that is likely cheaper than > even the Subconn discount. Lastly, depending upon the amps you need you > could use Tyco connectors from Digikey and make your own. I am using Tyco > connectors for both my low voltage instruments and my higher power > components. > > Jon > > > On Wednesday, May 1, 2024 at 03:44:33 PM EDT, Rick Patton via > Personal_Submersibles wrote: > > > Was wondering where the best place would be to purchase two prong > underwater connectors? > I was getting ready to pot my wire connections for my 6 outside lights and > then realized that it would be much better to be able to easily disconnect > them when they go bad and not have to re pot them . > > Rick > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu May 2 09:21:35 2024 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Thu, 2 May 2024 09:21:35 -0400 Subject: [PSUBS-MAILIST] PBS news piece Message-ID: Hello Friends, I was just sent a nice news segment yesterday that you all might enjoy. It's about how Central Michigan University decided to buy a K350 after the Innerspace mission there last year. That transaction as you may recall was facilitated by Jon, and the sub in question is Dan H's. https://youtu.be/coFcs47-jPg Best, Alec -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Thu May 2 16:06:16 2024 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Thu, 02 May 2024 20:06:16 +0000 Subject: [PSUBS-MAILIST] PBS news piece Message-ID: That's awesome! FYI, here's a clean link to the same video (for folks who want to avoid facebook's tracking stuff): https://www.youtube.com/watch?v=coFcs47-jPg (The original link redirects to facebook before going to youtube so they can track how the link is propagating outside of facebook.) Cheers! Ian. -----Original Message----- From: Personal Submersibles General Discussion Sent: May 2, 2024 6:23 AM To: Personal Submersibles General Discussion Subject: [PSUBS-MAILIST] PBS news piece Hello Friends, I was just sent a nice news segment yesterday that you all might enjoy. It's about how Central Michigan University decided to buy a K350 after the Innerspace mission there last year. That transaction as you may recall was facilitated by Jon, and the sub in question is Dan H's. https://youtu.be/coFcs47-jPg Best, Alec -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 07:14:38 2024 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Tue, 21 May 2024 11:14:38 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> Message-ID: <1419208445.2395591.1716290078013@mail.yahoo.com> Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 11:36:11 2024 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Tue, 21 May 2024 15:36:11 +0000 Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <1419208445.2395591.1716290078013@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: Use a resettable breaker and not a fuse wherever possible. Protecting any single equipment circuit demands a single breaker which may be anywhere in the circuit, as you don't have a "live" side and a "grounded" side on the equipment. On a submarine, your hull / chassis / earth connection(s) should not be referenced to the battery negative (as is the case with automotive systems), but rather should float. A short circuit failure within a piece of equipment that produces an overcurrent but does not also create a ground fault should trip that breaker regardless of position. Ground faults (continuity between the hull and either battery terminal) are a separate matter, and need to be monitored for and acted on independently of any individual circuit overcurrent fault. A failure within a piece of equipment which does also create a ground fault could conceivably do so from either side. A short circuit failure through the equipment circuit which produces an overcurrent should be interrupted by the equipment's own breaker. A failure which simply creates a ground fault at the equipment should not produce an overcurrent since there is (ideally) no return path to the battery (unless you have two simultaneous ground faults to opposite battery terminals that act to create a circuit). Any such ground fault must be detected so that you can act to isolate it. If you do happen to have a short circuit through a ground fault because a return path to the battery exists for whatever reason, that overcurrent should ultimately be interrupted by the breakers / fuses protecting the battery (one device at each battery terminal). Sean -------- Original Message -------- On May 21, 2024, 05:14, Jon Wallace via Personal_Submersibles wrote: > Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. > > Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 12:03:56 2024 From: personal_submersibles at psubs.org (hank pronk via Personal_Submersibles) Date: Tue, 21 May 2024 10:03:56 -0600 Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <1419208445.2395591.1716290078013@mail.yahoo.com> References: <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: <23DC3C36-2395-467E-9B1F-905437088303@yahoo.ca> Jon, I have always wondered the same thing but always just did positive protection. I do like to put a fuse right off the battery also. I am always worried about the cable from battery to panel. Hank Sent from my iPhone > On May 21, 2024, at 5:14?AM, Jon Wallace via Personal_Submersibles wrote: > > ? > Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. > > Jon > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 12:22:06 2024 From: personal_submersibles at psubs.org (irox via Personal_Submersibles) Date: Tue, 21 May 2024 16:22:06 +0000 Subject: [PSUBS-MAILIST] Motor Protection Message-ID: <5b13daab-4cea-a603-f33c-0d5e1ea72975@ix.netcom.com> For those interested, there is a paper "Grounded vs Ungrounded Electrical Systems for Use in Manned Submersibles" by Kenneth Privitt (son of Doug Privitt, maker of Nekton and Delta submersibles): https://www.privitt.com/mydocs/MTS_Journal.pdf He makes the case that if a sub's electrical system 50v or less than it is okay to use a grounded system. -----Original Message----- From: Personal Submersibles General Discussion Sent: May 21, 2024 8:37 AM To: Subject: Re: [PSUBS-MAILIST] Motor Protection Use a resettable breaker and not a fuse wherever possible. Protecting any single equipment circuit demands a single breaker which may be anywhere in the circuit, as you don't have a "live" side and a "grounded" side on the equipment. On a submarine, your hull / chassis / earth connection(s) should not be referenced to the battery negative (as is the case with automotive systems), but rather should float. A short circuit failure within a piece of equipment that produces an overcurrent but does not also create a ground fault should trip that breaker regardless of position. Ground faults (continuity between the hull and either battery terminal) are a separate matter, and need to be monitored for and acted on independently of any individual circuit overcurrent fault. A failure within a piece of equipment which does also create a ground fault could conceivably do so from either side. A short circuit failure through the equipment circuit which produces an overcurrent should be interrupted by the equipment's own breaker. A failure which simply creates a ground fault at the equipment should not produce an overcurrent since there is (ideally) no return path to the battery (unless you have two simultaneous ground faults to opposite battery terminals that act to create a circuit). Any such ground fault must be detected so that you can act to isolate it. If you do happen to have a short circuit through a ground fault because a return path to the battery exists for whatever reason, that overcurrent should ultimately be interrupted by the breakers / fuses protecting the battery (one device at each battery terminal). Sean -------- Original Message -------- On May 21, 2024, 05:14, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 12:35:51 2024 From: personal_submersibles at psubs.org (Cliff Redus via Personal_Submersibles) Date: Tue, 21 May 2024 16:35:51 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <1419208445.2395591.1716290078013@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: <201617699.2550691.1716309351014@mail.yahoo.com> For the R300 I use a Minn Kota 60A breaker between the 36V positive side of the main propulsion battery bank and the Minn-Kotta 36V motor controller battery positive lug for each of the four thrusters.??https://www.amazon.com/Minn-Kota-1865115-Circuit-Breaker/dp/B0BNTH473G/ref=sr_1_3?dib=eyJ2IjoiMSJ9.ZqOoEUKfcSHKDAlJ0cWIA70Oc4GT_j_d2PWszPuhTWJKxouMgjblPHJLMyjyCTzUVzzKhbKa3aFouF0Co9REU9luDIalX7Wx6kp1cFJPwyPuuYZV0z5hmMnH6CRpR48gTvwUR21QRQy9K_gyenbVVYYVx_pkWRwskWwRa7xyb1r5CwEMopZwTCXnNz9SNO_O5qhD-NL4juaH57I41WnPpueYD1Uy8vMU2XunD5XiRUc.ri47ao09jgU4F9rIK7dgMLJO0nonViVRQgT8Tfwlpbs&dib_tag=se&hvadid=439258262771&hvdev=c&hvlocphy=9027968&hvnetw=g&hvqmt=e&hvrand=14591139276017572863&hvtargid=kwd-330092347103&hydadcr=9495_9892223&keywords=60+amp+circuit+breaker+minn+kota&qid=1716308917&sr=8-3 BTW, in 10 years of operation of the boat, I have never had one of these circuit breakers open.? Cliff On Tuesday, May 21, 2024 at 06:15:48 AM CDT, Jon Wallace via Personal_Submersibles wrote: Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. Jon_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 15:59:58 2024 From: personal_submersibles at psubs.org (Alan James via Personal_Submersibles) Date: Tue, 21 May 2024 19:59:58 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <1419208445.2395591.1716290078013@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: <1906380807.2658525.1716321598800@mail.yahoo.com> Jon,the motor controller should have over-current protection.Have a look at it's specs.However if there is not a reset on the motor controller & you are waiting for a component to cool before everything starts up again, it may pay to have a circuit breaker on the positive. For example if you were motoring in to a harbour where you were navigating around boats, & a thruster got clogged with weed and drew too many amps, it may be critical to just quickly reset a circuit breaker & continue on at a lower power.Alan Yahoo Mail: Search, organise, conquer On Wed, 22 May 2024 at 1:02 am, Jon Wallace via Personal_Submersibles wrote: Hey gang, I'm curious what the general consensus is regarding fuse/breaker protection on both pos/neg legs of the propulsion motor or if protection on just the positive side is enough. Jon_______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 17:52:22 2024 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Tue, 21 May 2024 17:52:22 -0400 Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <1419208445.2395591.1716290078013@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: ABS says you should protect both positive and negative. "Circuits are to be protected from overloads and short circuits by protective devices which open all conductors. These protective devices are to be circuit breakers, except fuses may be used for immersion heaters and where overcurrent devices are inaccessible during normal operations. Essential and emergency circuits are to be provided with short circuit relays that can be reset." I find it useful to have these resettable dual-pole breakers right in front of me, because they're an easy way of ensuring there is no power to the thrusters when anyone is swimming near the sub. The actual throttle controls are quite easy to trigger accidentally. Best, Alec On Tue, May 21, 2024 at 7:15?AM Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Hey gang, I'm curious what the general consensus is regarding fuse/breaker > protection on both pos/neg legs of the propulsion motor or if protection on > just the positive side is enough. > > Jon > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Tue May 21 19:26:06 2024 From: personal_submersibles at psubs.org (Alan James via Personal_Submersibles) Date: Tue, 21 May 2024 23:26:06 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> Message-ID: <929577390.2740129.1716333966896@mail.yahoo.com> Alec,I may be misunderstanding you, but I am not reading that the same as you, as it says "circuits",meaning the run from the battery positive through the load to the negative terminal. So only one circuit breaker & more logically on the positive in case the load fails to ground, which would mean a breaker on the negative wire wouldn't trip. I guess if you couldn't access a circuit breaker on the positive wire you could put it on a negative.Alan?? Yahoo Mail: Search, organise, conquer On Wed, 22 May 2024 at 9:54 am, Alec Smyth via Personal_Submersibles wrote: _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 22 12:48:39 2024 From: personal_submersibles at psubs.org (Jon Wallace via Personal_Submersibles) Date: Wed, 22 May 2024 16:48:39 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <929577390.2740129.1716333966896@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> <929577390.2740129.1716333966896@mail.yahoo.com> Message-ID: <1040688750.3049353.1716396519474@mail.yahoo.com> I?ve read in a few places that reversible dc motors should be protected on both positive and negative sides although nobody has provided a clear justification for it. I?m curious however why ABS insists on circuit breakers. ?DC breakers are subject to serious arcing when they trip and need special engineering to ?quench? the arc making them expensive relative to fuses. ?I?ve watched a number of videos where breakers essentially become one-time use because they didn?t survive the effects of the arcing. ?Cartridge fuses melt producing little to no arc in the process. ?I get the convenience of just resetting the breaker, but these days Baomain and others offer breaker-like housings that make cutting power and changing fuses very simple. ?Is there some other reason breakers are preferred over cartridge type fuses? Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 22 14:32:26 2024 From: personal_submersibles at psubs.org (Alec Smyth via Personal_Submersibles) Date: Wed, 22 May 2024 14:32:26 -0400 Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <929577390.2740129.1716333966896@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> <929577390.2740129.1716333966896@mail.yahoo.com> Message-ID: Hi Alan, I think the key wording is "which open all conductors." My interpretation is that either conductor could be the positive one, depending on whether you are going forward or reversing. Or you could have an issue protecting only one conductor if (admittedly an unlikely scenario) more than one thruster were to short to the hull or sea at the same time. Best, Alec On Tue, May 21, 2024 at 7:27?PM Alan James via Personal_Submersibles < personal_submersibles at psubs.org> wrote: > Alec, > I may be misunderstanding you, but I am not reading that the same as you, > as it says "circuits", > meaning the run from the battery positive through the load to the negative > terminal. So only one circuit breaker & more logically on the positive in > case the load fails to ground, which would mean a breaker on the negative > wire wouldn't trip. I guess if you couldn't access a circuit breaker on the > positive wire you could put it on a negative. > Alan > > > Yahoo Mail: Search, organise, conquer > > > On Wed, 22 May 2024 at 9:54 am, Alec Smyth via Personal_Submersibles > wrote: > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > > _______________________________________________ > Personal_Submersibles mailing list > Personal_Submersibles at psubs.org > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles > -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 22 15:45:27 2024 From: personal_submersibles at psubs.org (Alan James via Personal_Submersibles) Date: Wed, 22 May 2024 19:45:27 +0000 (UTC) Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> <929577390.2740129.1716333966896@mail.yahoo.com> Message-ID: <2066811710.3133517.1716407127973@mail.yahoo.com> Alec,I wonder if there would be a caveat on that rule for systems under 50V, which is considered to be a safe voltage limit & that most of us are under.Also a lot of motor controllers have current limiting which would serve a similar purpose to a breaker.Alan? Yahoo Mail: Search, organise, conquer On Thu, 23 May 2024 at 6:34 am, Alec Smyth via Personal_Submersibles wrote: _______________________________________________ Personal_Submersibles mailing list Personal_Submersibles at psubs.org http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... URL: From personal_submersibles at psubs.org Wed May 22 16:40:13 2024 From: personal_submersibles at psubs.org (Sean T. Stevenson via Personal_Submersibles) Date: Wed, 22 May 2024 20:40:13 +0000 Subject: [PSUBS-MAILIST] Motor Protection In-Reply-To: <2066811710.3133517.1716407127973@mail.yahoo.com> References: <1419208445.2395591.1716290078013.ref@mail.yahoo.com> <1419208445.2395591.1716290078013@mail.yahoo.com> <929577390.2740129.1716333966896@mail.yahoo.com> <2066811710.3133517.1716407127973@mail.yahoo.com> Message-ID: 15 Distribution and Circuit Protection 15.1 General The pressure boundary is not to be used as a current carrying conductor for power, heating, lighting, control and instrumentation. All electrical power distribution systems are to be ungrounded and insulated to minimize the occurrence of faults and stray currents that may create galvanic corrosion. 15.3 Ground Detectors (2015) Ground detectors or interrupters are to be provided for systems with a line voltage above 7.5 V AC or 30 V DC. 15.5 Circuit Breakers and Fuses (2007) Circuits are to be protected from overloads and short circuits by protective devices that open all conductors. These protective devices are to be circuit breakers, except fuses may be used for immersion heaters and where overcurrent devices are inaccessible during normal operations. Essential and emergency circuits are to be provided with short circuit relays that can be reset. In general, fuses are not to be used in oil compensated compartments. Special consideration will be given to the use of fuses in oil compensated compartments, provided it can be demonstrated that the fuses are designed to operate in ambient pressure. Fuses and thermal breakers are not permitted in a Helium-Oxygen environment. See also 10/3.7. 15.7 Pressure Boundary Power Penetrations (2020) Power supply conductors from the same main or emergency power source are not to pass through the same penetrator or connection in the pressure boundary (of a pressure hull or pressure vessel for human occupancy) and are to be sufficiently spaced to prevent damaging currents. All power supply conductors passing through the pressure boundary are to be adequately protected by circuit breakers or fuses against overload and short circuit. The circuit breakers or fuses are to be located on the power source side of the pressure boundary and are to have the ability to open the circuit quickly to prevent damage to the watertight integrity of the electrical penetration. Tests may be required to demonstrate the ability of the device to perform as mentioned above. For low voltage (24 volts or lower) DC applications, special consideration will be given to both the positive and negative power supply conductors from the same main or emergency power source passing through the same penetrator or connection in a pressure boundary, provided it can be demonstrated that: i) ii) There is little risk of short circuiting or tracking between conductors. The voltages and currents are of such an order that in the event of failure in any way of the conductor insulation, the integrity of the penetrating device?s gas/water block is maintained. 15.9 Distribution Panels (2002) All distribution panels are to be accessible during operation. It is to be possible to disconnect power to each chamber separately. 15.11 Electromagnetic and Radio Frequency Interference The effect of electromagnetic and radio-frequency interference from adjacent circuits on controls and instruments is to be considered. Circuits are to be shielded if necessary. 15.13 Separation of Cables and Wiring 15.13.1 Cables and wiring of circuits supplied by different voltages and by the main and emergency circuits are to be effectively separated from each other. Electric plugs, sockets and receptacles are to be of a type which prevent improper inter-connections of the various systems and are to be provided with a means of securing after connection is made. The use of a color coding for the various systems is recommended. 15.13.2 (2002) Intrinsically safe wiring is to be separated from non-intrinsically safe wiring by at least 50 mm (2 in) and in accordance with the manufacturer?s recommendations. Other suitable standards may be acceptable. 15.15 Feeds The following users are to be supplied from separate feeders: i) Handling systems for submersible units ii) Normal lighting for each unit (or chamber) iii) Emergency lighting iv) Normal life support v) Emergency life support vi) Communication system vii) Vital instrumentation and equipment viii) Controls for emergency systems 15.17 Insulation Insulating material used in the construction of panels and switchboards is to be of a type that does not give off toxic gases in case of fire. 15.19 Electrical Instrumentation Sufficient drawings, specifications and test data or operating experience are to demonstrate that the reliability of the measuring devices is consistent with control requirements in the intended environment. Vital measuring devices used to control may have a backup or alternative means for providing measurements. In general, a voltmeter, an ammeter, and a ground detector (or interrupter) for each conductor of each different voltage system are suitable minimum instrumentation. This instrumentation may be located in a centralized panel or station. 15.21 Grounding All metal parts of the switchboards, other than current carrying parts, are to be grounded. All chambers are to be provided with grounding connection devices for plugs. Sean -------- Original Message -------- On May 22, 2024, 13:45, Alan James via Personal_Submersibles wrote: > Alec, > I wonder if there would be a caveat on that rule for systems under 50V, which is considered to be a safe voltage limit & that most of us are under. > Also a lot of motor controllers have current limiting which would serve a similar purpose to a breaker. > Alan > > [Yahoo Mail: Search, organise, conquer](https://mail.onelink.me/107872968?pid=NativePlacement&c=Global_Acquisition_YMktg_315_EmailSignatureGrowth_YahooMail:Search,Organize,Conquer&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000945&af_sub5=OrganizeConquer__Static_) > >> On Thu, 23 May 2024 at 6:34 am, Alec Smyth via Personal_Submersibles >> wrote: >> _______________________________________________ >> Personal_Submersibles mailing list >> Personal_Submersibles at psubs.org >> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles -------------- next part -------------- An HTML attachment was scrubbed... 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