Quick Question

[noeernlat]

I have a 200A service for a mobile home. I am running feeders from the main service disconnect to the panel inside the mobile home using 2" PVC. In the conduit i plan on installing 4/0-4/0-2/0 and #4 EGC according to 250.122 I am pretty sure this is correct but someone said i should be using table 250.66? Thanks.

 

[Dennis Alwon]

250. 122 is what you use .

 

[iwire]

In general:

250.66 is used when there is no overcurrent protection, such as service conductors and transformer secondaries.

250.122 is used when there are overcurrent devices like feeders and branch circuits.