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Joined: Jan 2004
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What are we using for the splicing of the EGC for the pool lights when an outlet box enclosing a switch is part of the circuit?
George Little
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Joined: Jul 2004
Posts: 9,928 Likes: 34
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I am curious about this myself. The code says "the equipment grounding conductor shall be permitted to terminate on grounding terminals on the transformer, ground-fault circuit interrupter, clock-operated switch enclosure, or an outlet box used to enclose a snap switch."
When I did my pool I ended up with a second unspliced EGC to the listed J box and ran a regular one to the box with the switch and GFCI receptacle. I suppoose you could loop the wire through the ground terminals on the box and switch unspliced but I am not sure how you can splice on a single screw.
A related question, if there is room in a box, can you use a regular "busbar" kit like you use in a panel for your grounding connections? I have seen it and I let it go because it seemed better that a cludge of wires under a wirenut but I doubt it is used as listed and per manufacturer's instructions. (there goes that "L" word again)
It really does make a neater job in one of those 3 and 4 gang boxes.
Greg Fretwell
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Joined: Oct 2004
Posts: 132
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I use a small busbar kit in jboxes all the time. I like it when you have 6+ EGC coming in, it's better than putting a bunch of blue wirenuts together. As far as listing, I read the directions in one of the square D kits, and it said that if the enclosure has no holes to attach said bar, drill them out and attach the bar. It does not list what enclosures this can be used in. I think that you could argue this as being listed to use in a gutter or box.
Besides, it really is a nicer, more reliable way to do it.
Mike
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Joined: Mar 2001
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George, Look at these: http://www.intermatic.com/?action=subcat&sid=177 They include a busbar to splice the grounds, and since you can install circuit breakers for the disconnect means, a light switch and the (required) GFCI receptacle right on them, they greatly reduce labor time in most cases. [This message has been edited by Redsy (edited 01-02-2005).]
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