cvirgil467
Senior Member
- Location
- NewYork
This is for a NYC installation.
in looking through the code ammendments for NYC, i cannot seem to find an approved wiring wiring for exterior light poles, other than hard pipe (which wil not be possible to support within the light pole). The light poles are on the roof. We will need to penetrate the roof to go directly into the bottom of the light pole. Here is what i have concluded:
1.MC cable rated for wet location - NYC doesn't allow PVC coated mc unless concealed within non-plenum walls, floors and ceilings where the walls, floors and ceilings provide a thermal barrier of material that has at least a one hour rated assembly as identified in listings of fire rated assemblies. Our ceiling is open to the structure.
2. SE cable - this is a possibility. Looking into this option for branch circuit wiring.
3. LFMC - NYC limits to 6' in length. Our pole is 15' high.
4. LFNC - similar to LFMC
5. ENT - would work but exposed to outdoor temperaures and may get brittle in cold.
6. Flexible cords - NEC states cannot penetaret thorugh holes in walls and ceilings. We wil need to go thourgh the roof. In addition, cannot be instaled in raceway.
I am out of ideas for wiring methods. Other option is to assume pole is a "raceway" and install #12 AWG conductors loose in the light pole up to the fixture.
Am i missing something?
Thanks.
c
in looking through the code ammendments for NYC, i cannot seem to find an approved wiring wiring for exterior light poles, other than hard pipe (which wil not be possible to support within the light pole). The light poles are on the roof. We will need to penetrate the roof to go directly into the bottom of the light pole. Here is what i have concluded:
1.MC cable rated for wet location - NYC doesn't allow PVC coated mc unless concealed within non-plenum walls, floors and ceilings where the walls, floors and ceilings provide a thermal barrier of material that has at least a one hour rated assembly as identified in listings of fire rated assemblies. Our ceiling is open to the structure.
2. SE cable - this is a possibility. Looking into this option for branch circuit wiring.
3. LFMC - NYC limits to 6' in length. Our pole is 15' high.
4. LFNC - similar to LFMC
5. ENT - would work but exposed to outdoor temperaures and may get brittle in cold.
6. Flexible cords - NEC states cannot penetaret thorugh holes in walls and ceilings. We wil need to go thourgh the roof. In addition, cannot be instaled in raceway.
I am out of ideas for wiring methods. Other option is to assume pole is a "raceway" and install #12 AWG conductors loose in the light pole up to the fixture.
Am i missing something?
Thanks.
c