Bantamben
Member
- Location
- California
What is the proper way to size the the service entrance conductors for an overhead riser in a residential single family dwelling unit. I tried the search and I'm sure this has been covered but wasn't able to find a clear answer. I've only done a few panel upgrades and they have all been replacing existing 200 amp services, so I wasn't required to upgrade the wireing. There might be an opportunity though to upgrade a 200 amp service on a large home we just did some work at in the future to a 400 amp service. It has a overhead feed. I feel guilty that I've really never owned this calculation and gone through the code on it. I did see in one table minimum size 400kcmil, is that without doing a load calculation? It looks like there is two options? I believe the customer will want not the minimum but the space to be able to load the panel up more in the future.
Thanks in advance.
Thanks in advance.