All grounds tied together in switch box

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  #1  
Old 02-04-07, 06:26 AM
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All grounds tied together in switch box

I was reading the posts from the last month were I noticed somebody asked about two power sources in a switch box. A comment was made to tie all bare grounds together in the box. I never new that.

I am not an electrcician and am looking at a 4 gang switch box I did in my basement bathroom several years ago. Two power source enter this switch box; a GFCI 20 amp circuit and regular 15 amp circuit. I currently have the grounds twisted separetely inside the box for these circuits. Should I rewire them to put the grounds on the differently rated lines all togther under one big wire nut.
 
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  #2  
Old 02-04-07, 06:36 AM
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All grounds in all boxes should be tied together.

Whether or not you should do anything now to correct a previous mistake like this is an interesting question.

I'm not sure that I would rush to do this, but I certainly would if I had the box open for any other reason.
 
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Old 02-05-07, 11:12 AM
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> 4 gang switch box...
> Should I rewire them to put the grounds on the differently
> rated lines all togther under one big wire nut.

The grounds need to be connected together, but not necessarily with one wirenut. In a 4-gang box you could easily have 9 or 10 grounds. It would be acceptable to make two or three wirenutted groups of ground wires connected to each other with pigtails of bare copper. This avoids a huge wad of ground wires which can be a PITA to fit back in the box.

I don't think you should worry about fixing this problem right now. If you ever need to work in the j-box, fix it then.
 
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