60 Amp ? Additional Photos

[gporter]

This is a great learning tool. Love NACHI

[Jim Port]

Originally Posted by gbeaumont

Hi Matt, in very many cases the utilities service drop potential exceeds that of the distribution system, my own home has 200 amp service, but conductors between the "drop" and the panel are rated for 150 amp, the panel is rated at 200amp max and the main disco is 150 amp.

What is the available amperage? and why?

Regards

Gerry

The ampacity rating for the conductors coming from the pole are not controlled by the NEC. The utility makes their own rules and will decide on the correct size for the load. Often times here the utility leaves the original drop even though the service has been upgraded from 100 to 200 amps.

With that said, the ampacity for conductors in free air is higher than the same conductor in a conduit or sheathing.