mc in plastic boxes

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Who makes up the rule, "if you're doing a dead end, it's no big deal."?

There is still 314.3 Ex1 & 2.


Read my responses to the thread you posted, I am not argueing for, I am playing " devil's advocate", which as you may well know, I like to do.
 
Pierre C Belarge said:
Who makes up the rule, "if you're doing a dead end, it's no big deal."?

There is still 314.3 Ex1 & 2.


Read my responses to the thread you posted, I am not argueing for, I am playing " devil's advocate", which as you may well know, I like to do.
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It's bonded at one end already. I fail to see where you're going. If you only have one metallic entry in the plastic box, you don't need internal bonding.
 
I am saying the 314.3 does not permit the installation of metal sheath cables unless one follows the 2 exceptions, regardless of where in the circuit the installation of the cable is made.


I am not arguing with you, I am stating what I read in the NEC and trying to figure out how you are making your decision as to what can and cannot be installed as per code.
 
Pierre C Belarge said:
I am saying the 314.3 does not permit the installation of metal sheath cables unless one follows the 2 exceptions, regardless of where in the circuit the installation of the cable is made.
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Nope, it is for multiple entries. The existance of multiple knockouts does not mean there are multiple entries. One cable is one entry. No internal bonding required between entries, since there's only one.
 
nolabama said:
Cool , i dont follow Pierre and 314.3 - if the box has the bonding screw doesnt that satisfy ex. 1 and 2
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The box is plastic and has no ground screw. I doubt it is listed for mc cable only the mfg can answer this and they are probably closed till mon. Rediculous. Btw they make a steel one box.
 
ok im done for the night after this one - why then do they provide a ground lug for the CSA on their fixture boxes if its plastic - if this plastic box had a canadian compliant ground lug would that satisfy the execptions in 314.3
oh and your probably right about the listing mr cow
 
nolabama said:
ok im done for the night after this one - why then do they provide a ground lug for the CSA on their fixture boxes if its plastic - if this plastic box had a canadian compliant ground lug would that satisfy the execptions in 314.3
oh and your probably right about the listing mr cow
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Come on now noone agrees with the cow. Why should you be special??
 
nolabama said:
ok im done for the night after this one - why then do they provide a ground lug for the CSA on their fixture boxes if its plastic - if this plastic box had a canadian compliant ground lug would that satisfy the execptions in 314.3
oh and your probably right about the listing mr cow
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If I understand your question correctly, I believe
this is for the grounding of a metal *fixture* on the
plastic fixture boxes I usually use - Carlon B520P-UPC
(Ceiling Box with captive nails, Ground lug and screw attached).
I don't necessarily agree, but some inspectors here require
the plastic fixture box with the ground lug, and they
have stated it's so if the HO changes out to a metal
fixture, it will be grounded (even if there is an
accessible ground wire available in the box).
 
rexowner said:
If I understand your question correctly, I believe
this is for the grounding of a metal *fixture* on the
plastic fixture boxes I usually use - Carlon B520P-UPC
(Ceiling Box with captive nails, Ground lug and screw attached).
I don't necessarily agree, but some inspectors here require
the plastic fixture box with the ground lug, and they
have stated it's so if the HO changes out to a metal
fixture, it will be grounded (even if there is an
accessible ground wire available in the box).
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That's ridiculous, and not even a code requirement. What good is a green screw in a nonmetallic box?
 
mdshunk said:
That's ridiculous, and not even a code requirement. What good is a green screw in a nonmetallic box?
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It hasn't been worth arguing about with the inspectors
since the boxes they want are about 20 cents extra, but
I agree this is ridiculous.
 
mdshunk said:
That's ridiculous, and not even a code requirement. What good is a green screw in a nonmetallic box?
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Well, this thread prompted me to get off my butt and
contact the AHJ. They are currently in a revision of
their "Electrical Lights, Receptacle & Switch Installation"
requirements, which included the requirement:
"Light outlet boxes must be grounded.", interpreted by
inspectors as fixture boxes needing a green screw.
They have about 20 inspectors, so hopefully, their
revision cycle will be a better time to do this than
arguing with individual inspectors.
 
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