The other day I came across a split system air conditioner in a single family residence where the installer had used type TC-ER PVC jacketed cable to power it. The TC-ER was run through the walls like NM. I said no based on its listing. It was direct burial rated and had no green or bare conductor also. Is there an application where this is allowed?
Can "TC-ER" cable be used like NM cable?
- Thread starter acrwc10
- Start date
- Status
- Occupation
- Licensed Electrician
You are correct.
I will confess to have used it. It was great for hooking up swamp coolers. About the only downside of joining the forum was that I found out it wasn't code approved.
I will confess to have used it. It was great for hooking up swamp coolers. About the only downside of joining the forum was that I found out it wasn't code approved.
- Location
- Mission Viejo, CA
- Occupation
- Professional Electrical Engineer
No, it can?t be used as NM ? it should be; it?s far superior, but it isn?t. IMO the prohibition is strictly the manufacturer's influence on the CMP.
It bothers me that you report it doesn?t have an integral EGC ? that?s one of the requirements to be marked ?-ER? or at least functionally used for the purpose. See Section 336.10(7). Otherwise it can only be used in a raceway, tray or on messenger cable. [336.12(2)]
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