Re: MAST WIRING
OK Gary, here goes:toggle quoted messageShow quoted text
All the posts in the bus give 24v readings when switch for light as labeled is on, 0v when off. When I disconnected the wires attached to the posts and measured across the two wires from each post, the white wire (clearly marked tricolor) and the red wire marked "blanc" gave a 24v reading when the anchor light breaker was on, and no reading when it was off. I put those two wires on the "blanc" post and now the anchor light is working correctly when its breaker on the 24v panel is on. "Clearly" the white wire goes to the anchorlight and not to the tricolor. I guess they switched them at the masthead? I KNEW the white wire should have been marked "blanc" (-:
The steaming lite (marked "hume") works correctly, as does the forward deck light (marked "projecteur").
Although the tricolor buss post is marked correctly and gives a 24v reading when the tricolor breaker at the 24v panel is on, I couldn't get a reading between the red wire marked "tricolor" and the black wire marked "blanc" when the breaker was on. I was able to get a 24v reading between the red wire and ground, but only a brief 3-4v reading between the black wire and ground that lasted a fraction of a second then dropped to zero. What should I expect if the bulb is burned out?
I also got a 24 v reading when the tricolor breaker was on, between the red tricolor wire and both brown wires that go to the steaming and deck lights, but nothing lit up at the masthead when I connected the red tricolor wire and one of the brown wires to the tricolor buss post. I don't understand why I got a reading when both of those wires are supposed to be DC positive, but since I did have juice between those wires but no tricolor light, I'm guessing that confirms that the bulb is dead, or could it be that there's a wire disconnected at the masthead? If the weather is OK tomorrow I'll go up the mast and see about changing the tricolor bulb.
Any suggested reading about basic marine electrical stuff like this?
Thanks again, Gary.
--- In firstname.lastname@example.org, amelliahona <no_reply@...> wrote: