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Circuit protection - LED lighting with 22ga. leads

 
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tomherrick



Joined: 13 Apr 2009
Posts: 367
City/Region: Versailles, KY
State or Province: KY
C-Dory Year: 1984
C-Dory Model: 22 Classic
Vessel Name: Prairieboy (working name)
Photos: Prairieboy
PostPosted: Sun Jun 24, 2018 7:30 pm    Post subject: Circuit protection - LED lighting with 22ga. leads Reply with quote

Doing a complete new 12V and 120V electrical system on my wife's West Wight Potter 19 sailboat. I planned on using 16ga. as the minimum size primary wire from the 12V circuit breaker panel to loads in keeping with ABYC's recommendation. None of the loads, including ganged lighting, exceed 1A. The leads, however, from all the low amperage LED lights, fans, etc., are all 22ga. None of these 22ga. leads are over 4" and will likely be trimmed even shorter. Still, at 3A max. current rating for 22ga. wire it appears that I need to fuse each run from the circuit breakers and switches. I had thought that the 15A breakers in the load center would protect the system since I am using 16ga. wire throughout the boat for distribution. Since these circuits now include 22ga. wire at the loads, should the circuits be fused for something like 2A to protect the 3A-rated leads from the loads?
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digger



Joined: 02 Nov 2003
Posts: 453
City/Region: Spokane
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 22 Angler
Vessel Name: C-Sik
Photos: Snoopy-C
PostPosted: Sun Jun 24, 2018 8:51 pm    Post subject: Reply with quote

Still waiting to see the completed c-dory
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thataway



Joined: 02 Nov 2003
Posts: 17001
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sun Jun 24, 2018 9:13 pm    Post subject: Reply with quote

I have about the same setup and fuse at 2 amps for the isle and red LED lighting.
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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
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