• Welcome to The Building Code Forum

    Your premier resource for building code knowledge.

    This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.

    Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.

    Ready to upgrade? Log in and upgrade now.

NEC 2020 Proposes Exterior Disconnect for Dwellings

jar546

CBO
Joined
Oct 16, 2009
Messages
12,763
Location
Not where I really want to be
New Code language is being proposed that would require an emergency disconnect at a readily accessible outdoor location for all dwelling units. This outdoor disconnect requirement recognizes the need for an outdoor disconnect for first responders of emergencies such as a house fire. According to CMP-10, these proposed emergency disconnect requirements are practical, feasible, and provides installers with multiple options. Currently, first responders and utility personnel do not have a way to safely remove power from a structure without the servicing utility company removing power from the entire structure. This emergency disconnect can consist of (1) the actual service disconnect, (2) a meter disconnect installed per 230.82(3), or (3) other listed disconnect switch(es) or circuit breaker(s) on the supply side of each service disconnect that are suitable for use as service equipment. Marking requirements that accompany these emergency disconnects and the marking requirements must comply with 110.21(B).
 
Good idea

But how do you keep it secure, so nobody except when needed, shuts it off
 
Good idea

But how do you keep it secure, so nobody except when needed, shuts it off

with a cheap lock if that is really is a problem, the fire department has bolt cutters.

I know of many places that have unsecured disconnect means on the exterior without issues
 
Back
Top