Would a ground rod be required for an outdoor sub panel(120/240 1Phase 4W U/G feed)? I need to set this for some pond aeration equipment. 250.32(A) talks about buildings and structures, but can't find anything pertaining to this type of situation. I know rods are required for temporary services at construction sites, but this is permanent. It's not the cost factor, it's whether or not it's a code requirement. Thanks.
Ground Rod/Remote Sub Panel
- Thread starter nizak
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texie
Senior Member
- Location
- Fort Collins, Colorado
- Occupation
- Electrician, Contractor, Inspector
In my view , no. But the subject of weather this is a "structure" has been debated here many times. I'm sure others will have a strong opinion.
- Location
- Massachusetts
In my opinion yes, grounding electrode of some type required.
It hinges on what one considers a structure, here is the Article 100 definition of structure
In my opinion the supports for the panel were constructed.
It hinges on what one considers a structure, here is the Article 100 definition of structure
In my opinion the supports for the panel were constructed.
120/240V 1 phase 4 wire? Single phase 120/240 is only 3 wires... the EGC should not be included.
Ground rod not required, but you will likely have to install an equipotential plane. See 682.2 and 682.33 for more details.
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- Location
- Massachusetts
Come on, you know he is including the EGC in the count.
As far as needing an electrode are you of the opinion the panel supports got there by magic?
It's for his postings in the future.
Nope.As far as needing an electrode are you of the opinion the panel supports got there by magic?
Going by...
- Location
- New Jersey
- Occupation
- Journeyman Electrician
The EGC is required by the sections that you've mentioned so why would you say that it shouldn't be included?
I agree about the ground rod not being required. Why install a rod when you have an equipotential plane.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Smart was just nit picking the OP about calling a 120/240 circuit 4W. He knows that an EGC is needed.
It is like when somebody says #12 3W NM, when he/she means 12-2 w/ground.
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- engineer
personally I think you likely need two ground rods.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I would agree if the OP said he was using a cable for the feeder.
If he's using PVC and you require 4 conductors would you still call it a 3 wire?
System type or circuit wiring does not include the EGC in the number of "wires".I would agree if the OP said he was using a cable for the feeder.
If he's using PVC and you require 4 conductors would you still call it a 3 wire?
hmy:Cord spec' or conduit fill is another matter...
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
I would agree if the OP said he was using a cable for the feeder.
If he's using PVC and you require 4 conductors would you still call it a 3 wire?
System type or circuit wiring does not include the EGC in the number of "wires".
Cord spec' or conduit fill is another matter...
Aw, geez. Do we gotta go here?
Already here.
I am certainly not there... :lol:
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