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# splice ok in lb fitting?

## splice ok in lb fitting?

#1
12-04-03, 08:00 PM
TerryPba
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splice ok in lb fitting?

Is it OK to make a splice in an LB fitting?
Thanks!

#2
12-04-03, 08:21 PM
Banned. Rule And/Or Policy Violation
Join Date: Nov 2003
Posts: 2,262
Yes, if the capacity is not exceeded.
This is not very easy to do though.

#3
12-04-03, 08:31 PM
TerryPba
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I wouldn't be adding a connection, just extending it.
By tough, you mean the cramped quarters?

#4
12-04-03, 08:39 PM
Banned. Rule And/Or Policy Violation
Join Date: Nov 2003
Posts: 2,262
Sorry, I should have elaborated.

I mean tough as in cramped and in not exceeding the capacity.

#12 wire has a box fill capacity of 2.25cu/in. If the LB is only 8cu/in and you have 2- 12/2 NM splicing inside; 2.25x5=11 cubic inches.

#14 wire is 2 cubic inches per conductor.

#5
12-05-03, 08:09 AM
brickeyee
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The LB should be marked with a capacity in cubic inches. #14 wire requires 2.00 in^3 per conductor, and #12 requires 2.25 in^3 per conductor, #10 is 2.50 in^3 per conductor. Each wire entering counts as 1 ((1 hot + 1 neutral) IN + ((1 hot + 1 neutral)OUT) = 4, and all the grounds count as 1, total of 5 wires.

#6
12-05-03, 08:42 AM
TerryPba
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Many thanks--the box is marked at 4 cu in. Back to the store!