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Subject - NEW CODES SC
David Hyatt These were just recently adopted:
1)In-service weather proof covers on all outside receptacles. Is this in 2005 code?????
2)Two ground rods not less than 6' apart if 25 ohms are less are not met. Around here you could drive 20 ground rods and not get 25 ohms or less. I wonder on a commercial building with all the steel and concrete would you have a better chance of 25 ohms?
3)Arc fault in all bedroom outlets. Someone mentioned to me that lights switch may cause an arc and trip these. But my reply is if the switches are tighten properly this won't happen. What do you think?
Wirenutz hi David

1)406.8(B) now, was in the other article prior...

2) i doubt 250.56 ever met 25 ohms with one G-rod, but i understand that very few states actualy check, so we do 2 and call it okeydokey, most out there really don't amount to squat...

3)only George Spencer (of Zlan fame) really knows what arc faults can or can't do, the rest of us are just left guessing

~W~
Ryan_J I don't think I noticed this thread before.

1) 406.8 doesn't require an in-use cover for all outside outlets. The requirement is driven by voltage and amperage of the device. See 406.8

2) This rule has been in 250.56 for quite some time.

3) A light switch will not trip an AFCI because an AFCI only trips on a series arc when the arc is sustained for 8 half cycles in the first 30 half cycles. A light switch will not sustain an arc. This rule came out in the 2002 NEC, 210.12(B).