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#1
posted to rec.boats.electronics
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Power cord ground terminal grounded to thru-hulls
When I asked my original question, I had no idea that there is no
apparent consensus on how to wire a boat for safety and for galvanic corrosion protection. Maybe those are mutually exclusive. Not being an electrical engineer, or electrician, just a long-time boat owner, I would not know which of all these conflicting replys to trust. And a search of Boat.us and the ABYC also indicates more confusion. Is there no governing body, such as UL, with a scientific, well reasoned approach? What about brand new quality boats? How does Viking, Hatteras or Cabo do it? All three of those manufacturers are lauded for their wiring systems installations. Russell krj wrote: chuck wrote: Larry wrote: wrote in news:1150426885.033779.258180 @g10g2000cwb.googlegroups.com: If the water heater is not bonded to the engine ground you get zapped! (click!) The GFCI just trips. Noone gets zapped. Another case to make dock GFCIs MANDATORY at all marinas. If the water heater is on a 250/125 volt circuit there can be no GFCI. Do you see a lot of water heaters operating at 125 volts? ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- There are a lot of 6 to 12 gallon hot 125 volt water heaters on sailboats. krj |
#2
posted to rec.boats.electronics
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Power cord ground terminal grounded to thru-hulls
Russell wrote:
When I asked my original question, I had no idea that there is no apparent consensus on how to wire a boat for safety and for galvanic corrosion protection. Maybe those are mutually exclusive. Not being an electrical engineer, or electrician, just a long-time boat owner, I would not know which of all these conflicting replys to trust. And a search of Boat.us and the ABYC also indicates more confusion. Is there no governing body, such as UL, with a scientific, well reasoned approach? What about brand new quality boats? How does Viking, Hatteras or Cabo do it? All three of those manufacturers are lauded for their wiring systems installations. Russell krj wrote: chuck wrote: Larry wrote: wrote in news:1150426885.033779.258180 @g10g2000cwb.googlegroups.com: If the water heater is not bonded to the engine ground you get zapped! (click!) The GFCI just trips. Noone gets zapped. Another case to make dock GFCIs MANDATORY at all marinas. If the water heater is on a 250/125 volt circuit there can be no GFCI. Do you see a lot of water heaters operating at 125 volts? ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- There are a lot of 6 to 12 gallon hot 125 volt water heaters on sailboats. krj I think if you follow ABYC standards, you will be squarely in the mainstream of boat wiring. Many insurance companies require ABYC compliance. Many marine surveyors inspect of ABYC compliance. The key books covering marine electronics (by Calder and Wing, for example) are based on ABYC standards. They both discuss safety and corrosion issues. One could do worse than reading the relevant chapters of these books. It would surprise me to find any significant discrepancy between ABYC standards and various tips and how-to literature available at WM and BoatUS. The NEC is a pretty iron-clad set of standards and should guide us as far as it goes. However, it doesn't contemplate boats actually floating on the water and so is silent about some things. The philosophy, however is very robust. Many of the posters enjoy challenging some of the sacred cows from time to time, but I think they're all supportive of accepted standards at the end of the day. (Just my opinion, of course) What is not always covered adequately in the standards is defensive strategies to protect you from non-complying nearby boats. Good luck, Russell. Chuck ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#3
posted to rec.boats.electronics
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Power cord ground terminal grounded to thru-hulls
"Russell" wrote in news:1150485737.896680.269040
@i40g2000cwc.googlegroups.com: Hatteras Big isolation transformers humming away in the bilge.... |
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