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Old 10-08-2012, 04:49 PM   #61
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6% voltage drop for 60 amp sub panel?


Thanks... I guess that means I can use #4 or #6 then??? How do I secure to brick, is there special clips for doing do? There is only 18" exposed between the gravel and the entrance into wall, so maybe I don't need any clips?


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Originally Posted by Techy View Post
250.64

(B) Securing and Protection Against Physical Damage.
Where exposed, a grounding electrode conductor or its en-
closure shall be securely fastened to the surface on which it
is carried. Grounding electrode conductors shall be permit-
ted to be installed on or through framing members. A 4
AWG or larger copper or aluminum grounding electrode
conductor shall be protected if exposed to physical damage.
A 6 AWG grounding electrode conductor that is free from
exposure to physical damage shall be permitted to be run
along the surface of the building construction without metal
covering or protection if it is securely fastened to the con-
struction; otherwise, it shall be protected in rigid metal
conduit (RMC), intermediate metal conduit (IMC), rigid
polyvinyl chloride conduit (PVC), reinforced thermosetting
resin conduit (RTRC), electrical metallic tubing (EMT), or
cable armor. Grounding electrode conductors smaller than 6
AWG shall be protected in RMC, IMC, PVC, RTRC, EMT,
or cable armor.
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Old 10-08-2012, 06:42 PM   #62
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6% voltage drop for 60 amp sub panel?


you've got to clip it nice and neat or else it won't pass inspection. Best to call your inspector and have them tell you what they want to see. The do make clips to fasten the wire. any electric supply should carry them.
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Old 10-08-2012, 10:03 PM   #63
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6% voltage drop for 60 amp sub panel?


Thanks again... Last question for now..

I'm thinking of having a switch inside house to turn outside garage lights on/off. I was going to run (3) #12 THWN for the switched hot and ground in the main conduit with feeders. Do I need to bring in a neutral as well for the switch?


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Originally Posted by andrew79 View Post
you've got to clip it nice and neat or else it won't pass inspection. Best to call your inspector and have them tell you what they want to see. The do make clips to fasten the wire. any electric supply should carry them.
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Old 10-08-2012, 10:49 PM   #64
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6% voltage drop for 60 amp sub panel?


You need a neutral at the switch location. As for running the branch with feeders that's a whole other arguement.
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