Adding a 100 amp sub panel direct from outdoor service

[Scottybars2288]

Need to add 100 amp sub panel outdoors

Question- I have a 200 amp service outside, it's an old house so there is just a meter outside, with no disconnect, that goes inside the home to the main panel with SER.

I need to trench in a 100 amp sub panel on the pool house of the property. I'd like to somehow bug the load side of the meter, fuse down to 100 amps, then feed the pool house with pipe and wire obviously.


Is it suitable to bug inside of a meter can? (im assuming no but understand this can very from POCO to POCO) and if not, what is the best way to accomplish this

 

[electrofelon]

Need to add 100 amp sub panel outdoors

Question- I have a 200 amp service outside, it's an old house so there is just a meter outside, with no disconnect, that goes inside the home to the main panel with SER.

I need to trench in a 100 amp sub panel on the pool house of the property. I'd like to somehow bug the load side of the meter, fuse down to 100 amps, then feed the pool house with pipe and wire obviously.


Is it suitable to bug inside of a meter can? (im assuming no but understand this can very from POCO to POCO) and if not, what is the best way to accomplish this

I would use 230.40 exception #3, you would be adding a second set of service entrance conductors to feed the pool house, no fusing required just a main breaker at the pool house. Replacing the existing meter socket with a class 320 is a real nice clean way to do it, but you can also just make the splice below the existing meter in a box or wire way.

 

[david]

There sre a lot of 200 amp meter sockets large enough to change the load side to double lugs.

Any thing you would add under the meter to make a splice in would need to be sealed so you would have to run that option by your utility

 

[jap]

Why can't you run a 100a feeder from the 200a panel that's already there?

JAP>

 

[electrofelon]

There sre a lot of 200 amp meter sockets large enough to change the load side to double lugs.

There is the milbank K4977 accessory lug, but other than that, around here there is not a way to add double lugs to the meter that I'm aware of

Any thing you would add under the meter to make a splice in would need to be sealed so you would have to run that option by your utility

Not if its on the load side of the meter.

 

[david]

There is the milbank K4977 accessory lug, but other than that, around here there is not a way to add double lugs to the meter that I'm aware of


Not if its on the load side of the meter.

Correct

 

[jap]

There is the milbank K4977 accessory lug, but other than that, around here there is not a way to add double lugs to the meter that I'm aware of


Not if its on the load side of the meter.

In our area, if you do anything inside the sealed area of the meter or the line side of the service disconnect, you're going to be contacting the power company.

JAP>

 

[augie47]

The Milbank K4977 can be a suitable solution but be aware it is not UL listed IF that is important in your area,

 

[Scottybars2288]

Why can't you run a 100a feeder from the 200a panel that's already there?

JAP>

as noted above, the panel is inside the home. not on an exterior wall. no disconnect outdoors either. old house.

 

[Scottybars2288]

I would use 230.40 exception #3, you would be adding a second set of service entrance conductors to feed the pool house, no fusing required just a main breaker at the pool house. Replacing the existing meter socket with a class 320 is a real nice clean way to do it, but you can also just make the splice below the existing meter in a box or wire way.

I like this, but wouldn’t I need to pull 200 amp rated conductors to the main breaker in the pool house? that’s why i was going to fuse down to pull 100 amp

 

[electrofelon]

I like this, but wouldn’t I need to pull 200 amp rated conductors to the main breaker in the pool house? that’s why i was going to fuse down to pull 100 amp

No, service conductors only have to be sized to the OCPD they terminate in.

 

[suemarkp]

Changing the meter base to a class 320 works, changing the lugs on the existing meter works if you can find any that work. You could add the newly required outside disconnect if you have enough length on that SE to get to it. Choose a disconnect that has or can easily have double lugs.