Three wiring questions...

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Three wiring questions...

Postby Boreal » Sun Jun 18, 2017 9:44 pm

1. I'm thinking white and red/black. Is it true that LED lights need to be connected int eh correct polarity? (These are the standard cheapie plastic reading lamps from Vintage.)

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2. I have this nifty thing. Each of the three devices has two leads. Questions: the two outside ones on a single circuit are fine, I am quite sure. But do I run the voltage meter on the same circuit as the USB and Ciggie plug, or do I run a separate 2-conductor back to the battery somehow?

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3. I'm running two-conductor wire for 12V (12 Ga - overkill, I know, but it's how I roll) from my lights, USB chargers, Cig Plugs, etc back to my panel. The panel is the Progressive http://www.progressivedyn.com/all_in_one_pd4000.html Inteli-Power type. How do I ground these circuits?

4.What's the max number of items that I could/should put on a 20A circuit? I'm going way overkill here, but hgere's the plan so far:

Circuit 1 - cig Plugin for DC Cooler
2 - 3 interior cabin lights + 1 USB charger
3 - 2 interior reading lights + 1 USB chRger
4 - 3 Galley lights + 1 USB charger + 1 cig plugin

I'm also running a few lines (one to the main cabin and one to the galley "for future consideration", but they won't, of course, be hooked up.

So that's six of ten 20A circuits accounted for. Sound about right?

OK, four questions. :roll:
Last edited by Boreal on Sun Jun 18, 2017 10:02 pm, edited 1 time in total.
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Re: Two wiring questions...

Postby Padilen » Sun Jun 18, 2017 9:53 pm

LED do have to be correct polarity.
Are those 12 volt DC ?


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Re: Two wiring questions...

Postby Boreal » Sun Jun 18, 2017 10:04 pm

Padilen wrote:Are those 12 volt DC ?


Yes, those are 12V DC.
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Re: Three wiring questions...

Postby Dale M. » Mon Jun 19, 2017 9:49 am

1. Yes LED polarity has to be correct and the WHITE wire is ground (or negative)...

2. Both items on can be on same source and it should be same voltage through out system...

3. Works for me.... But suggest using smaller size fuses for low drain circuits...

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Re: Three wiring questions...

Postby Boreal » Thu Jun 22, 2017 9:07 pm

Alrighty, now... I bought myselkf a battery and tested some of the circuits I already installed. And it's GLORIOUS! 8) (It's great when things work the first time).

I still have a few questions. The most important being:

1. How do I ground? From each circuit, and sometimes from an individual device (I have my DC cooler and Vent/Fan each on a dedicated circuit, prolly overkill) I have two wires. I used 12 Ga because that's what I could get cheaply. Red goes to the positive terminal of the battery, and white goes to negative. Which is ground. Red wires go into my Progressive distribution box, but where do the white wires go? Should I wire the negative terminal to my metal chassis? It is extensively painted, so do I sand that shite off and try to attach wires with bolts, or are the grounding blocks, or what?

2. I have one instance where I have "exposed" wires up against the EPS foam interior of a wall. By exposed I mean that I've attached, using the appropriate clips, a USB charger, and it's shoved into some evacuated wall space, which I will then fill with expanding foam.. Is there any chance that this is a fire hazard? (It will be attached to a 15 A fuse in teh Progressive control center).
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