Originally Posted by s/v Jedi
From what you write, you seem to have AWG8 wiring between the shore power
inlet, breaker and on to the switch panel?
Like written in posts in this thread, you can crimp #8 perfectly fine by using uninsulated lugs instead of insulated terminals, using a quality ratcheting AWG10 terminal crimper that everybody should have. You then add some heatshrink to insulate and have good AWG8 terminations
We are in accordance regarding uninsulated terminals. I will also confess to having removed a wire strand or two from a conductor (in the past) in order to get a wire to fit a slightly undersized terminal.
WARNING! THREAD HIJACK!
Regarding the 120V shore service
to the boat, your question made me go back to check.
The shore power cord for my boat - 30 amp, 120V - is indeed #10 wire (This is a Hubbell cord, Marinco lists the same for their power cord). From the ship's 120V receptacle to the back of the shore power/generator selector, and to the 120V panel, is all #10. From my generator
(4.4 KW) it is a #10.
Per the NEC I am in accordance (in my case I am using 105 degree C conductor, in excess of NEC's 90 degree C ratings) with allowable ampacity ratings:
I am not certain how this relates to ABYC standards, though my belief is that they have adopted (with modifications) the NEC standards. NEC is National Electrical
Code, the governing document for electrical work in the US. Other countries (may) have differing requirements.
The ABYC here in the US lists, per Table VII-A:
90 Degree C #10 cable - 55A/45A for outside and inside engine
105 Degree C #10 cable - 60A/51A for outside and inside engine
ABYC is the American Boat and Yacht Council (ABYC
- develops consensus safety
standards for the design, construction, equipage, maintenance
, and repair of small craft), sort of a Lloyds light. They establish voluntary standards for their dues paying members. The data shown above may not be current
Exercise due caution when dealing with electricity. 85-90% of boat fires are due to electrical problems. If unsure of your abilities, consult a qualified professional.
Apologies for the thread drift. I usually don't have internet
access, and when I do, I tend to run on.