Power company wants a main breaker (OCP) in panel that has a an OCP at the S.W.B.???

Status
Not open for further replies.
I think I understand the set-up you have.

If it's the meter technicians concern that he must have the ability to de-energize the meter socket prior to installation what good would a OCPD do on the load side of the meter do short of removing the load... the circuit would still be energized unless the OCPD were opened at the main board.

Guess I'm confused as to what the meter tech is looking to accomplish.

Pete
Yes, me too.
His and his supervisors response is "it's in the code", but can't recite the specific article. I'm waiting to see what the PSC will come up with.
 

Hv&Lv

Senior Member
Location
-
Occupation
Engineer/Technician
I think I understand the set-up you have.

If it's the meter technicians concern that he must have the ability to de-energize the meter socket prior to installation what good would a OCPD do on the load side of the meter do short of removing the load... the circuit would still be energized unless the OCPD were opened at the main board.

Guess I'm confused as to what the meter tech is looking to accomplish.

Pete

My response to the meter tech if that was his intention would be, is there a disconnect before the meter on house services? I am sure he sets meters everyday on residences where the meter base is hot.
 

kwired

Electron manager
Location
NE Nebraska
The AHJ said the same thing
I like this guy already.:)

I think I understand the set-up you have.

If it's the meter technicians concern that he must have the ability to de-energize the meter socket prior to installation what good would a OCPD do on the load side of the meter do short of removing the load... the circuit would still be energized unless the OCPD were opened at the main board.

Guess I'm confused as to what the meter tech is looking to accomplish.

Pete
I think he is so used to there being a (main) disconnect on the load side of the meter that he just assumes something must be wrong with this installation.

Is this the installer?

View attachment 7832

What is funnier yet? Right click on the image and choose to save it, and look at the default name of the file.
 
Still battling! I'm running out of ammo.
I met with a POCO supervisor at the site to look over what me have. We determined the 12 meter sockets are cold sequence (individual breakers before each meter socket). He tells me it's supposed to be hot sequence, ( after the meter) this is a 1600 amp switchboard with a Main OCP. So that means by what he saying the original installation is incorrectly installed. Highly unlikely. He's not going to make the customer change it, but he wants to see a main breaker at the store panel we installed to protect his equipment if something were to happen beyond the meter. My response was you have individual protection per the branch breakers . He's telling me, nope you need one main disconnect after the meter ( Hot sequence).
Here's the comical part. I asked if I could rewire the breaker in the main switchboard to hot sequence ,if that would satisfy him ? The answer is, we will get you a meter if you do that.

The problem is.

A- I have to shut down the entire switch board to make the change.
B- It will change the U.L. listing.
C- It will be confusing not to mention dangerous if some one were to work on the equipment later, not knowing one compartment was switched around.

I'm not even considering this option.


I believe it's should be cold sequence. I have a panel rep looking into the sequencing issue, we'll see were this goes.

I just thought of something. If I had a main OCP disconnect before a C.T. cabinet, I don't need a main breaker in the panel it's feeding to protect their equipment. Nor do I need one with a 277/480 volt service that requires hot sequenceing

Maybe I have a couple rounds in the chamber left.
 

Hv&Lv

Senior Member
Location
-
Occupation
Engineer/Technician
but he wants to see a main breaker at the store panel we installed to protect his equipment if something were to happen beyond the meter. My response was you have individual protection per the branch breakers .

Wait a minute..

Doesn't the protection come before whatever it is you are trying to protect? Why is the POCO depending on your devices to protect their equipment? That is what their fuses are for.
 
Wait a minute..

Doesn't the protection come before whatever it is you are trying to protect? Why is the POCO depending on your devices to protect their equipment? That is what their fuses are for.

You and I know that. He's stuck on the hot sequence thing for some reason. I'm going to warm up my dialing finger tomorrow and be the P.I T.A. my wife says I am.
 

mivey

Senior Member
Is somebody at the POCO all bowed up or are they just being knuckle-heads in general?

If they have already allowed this install at the other locations, it is silly to require this one to be different. Call one of the commissioners at the PSC and let them know one of their voters is being harrassed by the POCO for an installation that has already been approved.
 

kwired

Electron manager
Location
NE Nebraska
.. but he wants to see a main breaker at the store panel we installed to protect his equipment if something were to happen beyond the meter. My response was you have individual protection per the branch breakers . He's telling me, nope you need one main disconnect after the meter ( Hot sequence).

The breaker ahead of the meter actually offers more protection (although maybe not all that much more) than having one after. If there is a fault beyond the meter this current passes through meter regardless.:slaphead::slaphead::slaphead::slaphead:

I truly feel sorry for you and your customer.

If I were the meter guy, I would be happy to have a switch ahead of the meter in any installation, since this is 1600 amp switchboard I bet there is more incident energy available than there typically is for dwellings and other small commercial services where they typically have to plug in a meter while live.
 

realolman

Senior Member
somebody at the POCO made a stupid call, and is not going to admit it until it's dragged outta him, and he is going to hide behind the POCO ivory tower walls to make that difficult.

I can't believe the guy who came to your site would put such stuff through himself in person. There is no logic involved. If you're gonna cling tenaciously to an arbitrary decision, it can go arbitrarily whatever way suits you.
 
somebody at the POCO made a stupid call, and is not going to admit it until it's dragged outta him, and he is going to hide behind the POCO ivory tower walls to make that difficult.

I can't believe the guy who came to your site would put such stuff through himself in person. There is no logic involved. If you're gonna cling tenaciously to an arbitrary decision, it can go arbitrarily whatever way suits you.

They have dug in their heels. I have a Square D rep working on the Cold sequence arrangement that is required by the POCO. Then I'm going back to the PSC.
 

Smart $

Esteemed Member
Location
Ohio
They have dug in their heels. I have a Square D rep working on the Cold sequence arrangement that is required by the POCO. Then I'm going back to the PSC.
I thought the POCO was requiring hot sequence...???

I can see where cold sequence can be required, but I don't see where hot sequence can be required. What happens to the meter when there is a power outage and the power comes back on... isn't this the same as installing the meter as cold sequence? If hot sequence is required, isn't that accomplished by having the line-side main breaker in the closed position?
 
Last edited:
Status
Not open for further replies.
Top