2008 NEC Article 250
- Thread starter grumpy11
- Start date
- Status
- Location
- Illinois
- Occupation
- retired electrician
Yes.
texie
Senior Member
- Location
- Fort Collins, Colorado
- Occupation
- Electrician, Contractor, Inspector
That depends. 250.148 keeps you from daisey chaining the ground. But if you had metal conduit without an EGC it would be a moot point.
- Location
- Illinois
- Occupation
- retired electrician
The conduit would be the EGC and it would be connected to the box. That complies with 250.148.
- Location
- Illinois
- Occupation
- retired electrician
The use of self-grounding receptacles covers the rule in 250.146. You still have to connect the EGC wire to the box to comply with 250.148.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
If the egc is pulled into the device box then it must be connected to the box even if there is emt used as the raceway. The receptacle does not have to be grounded necessarily but the box does.
kwired
Electron manager
- Location
- NE Nebraska
It says "Where circuit conductors are spliced within a box, or terminated on equipment within or supported by a box..."
That means if any circuit conductors are spliced not just the EGC. If the box is just a pull box and no splicing or terminations are involved then you do not have to bond the EGC to the box (if the box is already bonded by metallic raceways). If it was nonmetallic raceways hitting a metal pull box you would have to bond the box even if it means the EGC is the only conductor spliced or terminated.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Easily 80% or more of the jobs speced by an EE that I have worked on call for a wire EGC even if in metallic conduit.
kwired
Electron manager
- Location
- NE Nebraska
That is correct.
kwired
Electron manager
- Location
- NE Nebraska
No. It would be in any enclosure where you have splices or terminations of any kind.
ok so lets make it simple . the way we are all talking. if there is an egc pulled in any circuit conductors or even feeders .
if a splice is made the egc must be bonded to the JB and the outlet box . also in a feeder.
if this be the case. i wonder how many electrican really that. i can see the outlet box or a switch where a feeder would go to. but a jb splice box.
if a splice is made the egc must be bonded to the JB and the outlet box . also in a feeder.
if this be the case. i wonder how many electrican really that. i can see the outlet box or a switch where a feeder would go to. but a jb splice box.
kwired
Electron manager
- Location
- NE Nebraska
This has been a requirement since at least 1987 NEC and probably even before, that is the first year of NEC for my experience and it was the requirement then to the best of my knowledge. What is so hard to understand about this?
If conductors are continuous you don't have to bond to the enclosure, if they are spliced or terminated in any way you must bond to the enclosure.
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