Considered one service or two services

[augie47]

From what you have stated it is one building with two service disconnects so 250.64(D) would apply.

 

[electrofelon]

Personally I would agree with the commentary in the handbook, its one service. Both 250.64(D) and (F) apply.

 

[augie47]

Personally I would agree with the commentary in the handbook, its one service. Both 250.64(D) and (F) apply.

That's the way we would look at it.

 

[hhsting]

Alright so this is how it is forget post #1.

I have shopping center. Space is empty so they are splitting it to two tenants. Please see attached sketch label shopping center below. Hash tag lines is tenant space to be modified:

The space to be modified is going to have 1 hour rated fire wall splitting one tenant space now to two. Please see attached sketch the space blown up with 1 hour rated wall creating tenant Space 1 and tenant Space 2

Now the space has main service disconnect of tenant #1 and main service disconnect of space #2 on the backside wall of tenant space #1 as shown below with meters for both tenants next to them. The trough is also their but didn’t have room to show it


The way its wired from one POCO xfmr dedicated to severing only space#1 and #2 has two separate service conductors (not sure service lateral or service entrance) go underground to tenant space 1 come up trough backside wall of tenant space 1, go into trough and then to each respective meter and to respective each tenant service disconnects. Please see elevation view exactly how

Please see below Equipment location and Elevation:

The way plans show grounding bonding is one grounding electrode tap from each service disconnect go to common ground electrode conductor of wire type which then has bonding jumper to steel, water pipe, rod, and to inter system bonding termination(1 for both tenants??). Its following 250.64(D). Not 250.64(F). Its specifiaclly only following NEC 2014 section 250.64(D)(1). The Common grounding electrode is wire type sized 2/0 awg copper. Please see below configuration

So now you have all the picture.

Questions then are:

1. Is this one service or two services per NEC 2014 section 230.2?

2. Would NEC 2014 section 250.64(D) or 250.64(F) apply?

3. Tenant space #2 main service disconnect is at the back wall of tenant space #1 with tenant space #1 service disco. Would this be NEC 2014 not compliance with any code?

 

[electrofelon]

So now you have all the picture.

Questions then are:

1. Is this one service or two services per NEC 2014 section 230.2?

2. Would NEC 2014 section 250.64(D) or 250.64(F) apply?

3. Tenant space #2 main service disconnect is at the back wall of tenant space #1 with tenant space #1 service disco. Would this be NEC 2014 not compliance with any code?

1. Seems pretty much the same setup and answer as the OP. Why do you think it may be different?
2. Both apply. Its not one or the other, and not one applies if 1 service the other applies to if 2 services.
3. Why do you think it might not be compliant?

 

[hhsting]

Personally I would agree with the commentary in the handbook, its one service. Both 250.64(D) and (F) apply.

You cannot have NEC 2014 section 250.64(D) and 250.64(F) apply. 2014 version of 250.64(D) is for one service with multiple disconnect. If i have two services then each service has one disconnect not two. Also 250.64(F) does not refer back to 250.64(D) it says to comply with 250.64(F)(1),(2), or (3). I don’t see how this is possible

 

[hhsting]

1. Seems pretty much the same setup and answer as the OP. Why do you think it may be different?
2. Both apply. Its not one or the other, and not one applies if 1 service the other applies to if 2 services.
3. Why do you think it might not be compliant?

1. Its shopping center and part of that shopping center would have two tenants. Its Not one whole builidng

2. I don’t see how. See post #26. Also 250.64(F) does not call for Common Grounding Electrode conductor wire type 2/0 awg. These are two different section they cant be both

3. Its at outside back wall of tenant #1. May not be readily accessible. Tenant #1 can mess with etc etc


Sent from my iPhone using Tapatalk

 

[augie47]

Makes no difference.
You have one building. 250.58 states that the you will have a common grounding electrode system.
The grounding system as shown in post #24 is fine.

 

[hhsting]

Makes no difference.
You have one building. 250.58 states that the you will have a common grounding electrode system.
The grounding system as shown in post #24 is fine.

I think our building department called space 1 and space 2 two separate buildings.

 

[augie47]

You stated a 1 hr fire wall. That does not make 2 buildings
Typical sting thread has gone from number of services to grounding issues then from one building to 2.
Closed