Eddy Current
Senior Member
I know about the threaded code, but i thought there was a code that stated it has to be identified as a green screw.
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406.10 Grounding-Type Receptacles, Adapters, Cord
Connectors, and Attachment Plugs.
(B) Grounding-Pole Identification. Grounding-type recep-
tacles, adapters, cord connections, and attachment plugs shall
have a means for connection of an equipment grounding con-
ductor to the grounding pole.
Aterminal for connection to the grounding pole shall be
designated by one of the following:
(1) A green-colored hexagonal-headed or -shaped terminal
screw or nut, not readily removable.
(2) A green-colored pressure wire connector body (a wire
barrel).
(3) A similar green-colored connection device, in the case
of adapters. The grounding terminal of a grounding
adapter shall be a green-colored rigid ear, lug, or simi-
lar device. The equipment grounding connection shall
be so designed that it cannot make contact with
current-carrying parts of the receptacle, adapter, or at-
tachment plug. The adapter shall be polarized.
(4) If the terminal for the equipment grounding conductor
is not visible, the conductor entrance hole shall be
marked with the word green or ground, the letters G or
GR, a grounding symbol, or otherwise identified by a
distinctive green color. If the terminal for the equip-
ment grounding conductor is readily removable, the
area adjacent to the terminal shall be similarly marked.
That sounds like it's talking about the screw on the device, i was talking about when grounding a pigtail to something like a four square box.
That's why the first word of my post was nope.
It's not required to connect to a metallic box.
I saw that a pigtail to the box is required if there isn't a grounding wire in the raceway, but you're saying that you don't even need a pigtail if there is a grounding wire in the raceway? Is that just a thing that a lot of inspectors prefer?
I thought it was the other way around. If you had a grounded box you didn't need a grounding wire on a self grounding receptacle.
I believe the pigtails must be green or bare
I know about the threaded code, but i thought there was a code that stated it has to be identified as a green screw.
Now if any bonding connections are required to be made by a wire jumper there is no requirement that a screw used to make that bond needs to be green though many screws that are sold for that intent are green.
That answered my original question, but the other question came out about grounding the box. So the additional grounding pigtail to the box is not a code, just a local requirement?
Just what is the question, I thought you were asking if the mentioned screw was required to be green?
The box needs to be bonded, the yoke/EGC of the receptacle needs to be bonded, if a metallic cover is used it needs to be bonded. But if a raceway that qualifies as an EGC is supplying all of it you could accomplish all the required bonding without any actual bonding "wires"
Now if any bonding connections are required to be made by a wire jumper there is no requirement that a screw used to make that bond needs to be green though many screws that are sold for that intent are green.
If you pull a ground wire in the raceway and have splices or devices in the box then yes (Rob did answer this). You may or may not need a pigtail to the receptacle depends if it is already bonded by an acceptable means through it's mounting method.So the screw doesn't have to be green, but by code you do have to have a ground pigtail grounded to the box even though you have a ground wire pulled in the raceway.
The screw on the receptacle is more the problem of the manufacturer then it is for me - nearly all of the time. If the screw is missing from the receptacle then it may be my problem to ensure any replacement is green. The screw used to bond the box (if one is used) is not required to be green.For receptacles they are. See post #2.
If you pull a ground wire in the raceway and have splices or devices in the box then yes (Rob did answer this). You may or may not need a pigtail to the receptacle depends if it is already bonded by an acceptable means through it's mounting method.
250.148 would contain requirements for bonding the box to the EGC. If there is no EGC pulled in the raceway then the raceway would have to be the EGC, and should inherently bond to the box via the raceway termination to the box.What is the code reference for this, 250.148? I saw the picture in the Mike Holt book but it only showed bonding to the box if there was not a ground pulled in the raceway.
That sounds like it's talking about the screw on the device, i was talking about when grounding a pigtail to something like a four square box.
That's why the first word of my post was nope.
It's not required to connect to a metallic box.
I saw that a pigtail to the box is required if there isn't a grounding wire in the raceway, but you're saying that you don't even need a pigtail if there is a grounding wire in the raceway? Is that just a thing that a lot of inspectors prefer?