Disconnect before meter

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kwired

Electron manager
Location
NE Nebraska
Exactly. We've had to install disconnects ahead of the meter since 1985 and its a disconnect for the POCO so they don't have to replace the meter hot. Our POCO specs state - switch fuse meter but they will allow a non fused switch if the available fault current is less than the AIC of the switch, 10,000 amps typically. The bonus is we have had to use the meter disconnect many times to work on the main disconnect, some of ours overheat due to motor loads, many amps, running 24x7X months.

What do you turn off to work on the meter disconnect?
 

buddhakii

Senior Member
Location
Littleton, CO
The POCO hear requires it on all commercial services. It's called cold sequence. All the ones I've installed have been fused, and we treat it as the first fused disconnect because that's exactly what it is, with all the bonding taking place there.
 

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
How do you comply with these rules when using a fused disconnect? It is not all that practical to provide user access to overcurrent devices yet prevent access for unmetered conductors in the enclosure. At least not with most typical "Safety Switches". ...
I am not aware of a fused disconnect that would comply with both the utility and NEC rules, but it would not be an issue for a breaker as you can allow access to reset without allowing access to the wiring.
 
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