Grounding a 320 Meter base

[wmeek]

If the utility requires a ground in the meter can to the neutral bar, isn't that the same as bonding the neutral. If so, would that be per code to bond the neutrals again in service disconnect.

 

[Dennis Alwon]

If the utility requires a ground in the meter can to the neutral bar, isn't that the same as bonding the neutral. If so, would that be per code to bond the neutrals again in service disconnect.

What do you mean by a ground in the meter? The meter base grounded conductor is bonded to the can but you would not run a separate egc to the service disconnect.

 

[wmeek]

What do you mean by a ground in the meter? The meter base grounded conductor is bonded to the can but you would not run a separate egc to the service disconnect.

The utility company requires a grounding conductor from Neutral bar in meter can to ground rod.

 

[wmeek]

There specs require a Min #6 ground wire from neutral in meter can(which is bonded to the Can) to ground rod

 

[raider1]

The utility company requires a grounding conductor from Neutral bar in meter can to ground rod.

Using the grounded conductor for grounding and bonding ahead of the service disconnecting means is acceptable from an NEC standpoint.

Chris

 

[wmeek]

Using the grounded conductor for grounding and bonding ahead of the service disconnecting means is acceptable from an NEC standpoint.

Chris

So you will still have to bond the neutrals again at the service disconnect. and that is per code

 

[raider1]

The grounding electrode conductor can be connected to the grounded conductor at any point from the load end of the service drop or service lateral to and including the service disconnecting means. (See 250.24(A)(1))

The main bonding jumper must be installed at the service disconnecting means. (See 250.24(B))

Chris

 

[raider1]

So you will still have to bond the neutrals again at the service disconnect. and that is per code

Yes, 250.24(B).

Chris

 

[wmeek]

Can this ground be run in same conduit that feeds the service disconnect and be terminated in the gutter with rest of grounds on a ground bar

 

[raider1]

Can this ground be run in same conduit that feeds the service disconnect and be terminated in the gutter with rest of grounds on a ground bar

This wire would be the grounding electrode conductor and there is no need to run the GEC to the ground bar in the gutter. Running a GEC through a steel conduit requires that you bond the wire to the conduit at both ends in accordance with 250.64(E).

Chris

 

[wmeek]

How would run the gec from the meter can to where?

 

[raider1]

How would run the gec from the meter can to where?

The the grounding electrode.

The GEC is used to connect the grounded service conductor to the grounding electrode system. The connection to the grounded conductor can be at the meter base.

Chris

 

[wmeek]

So if I run a GEC to the neutral in the service disconnect and install main bonding jumper there, that you do not have to run a seperate GEC to meter can

 

[roger]

So you are saying that if you bond the neutral in the service disconnect(Main bonding Jumper) , you do not have to run another GEC to the meter can.

If the GEC is landed in the meter can that is the only GEC needed.

Roger

 

[raider1]

So if I run a GEC to the neutral in the service disconnect and install main bonding jumper there, that you do not have to run a seperate GEC to meter can

Is the meter can a remote meter can from the rest of the service?

Chris

 

[ceb58]

If the poco is requiring it to be bonded in the meter base bring the #6 to the neutral bar in the meter can with the neutral ( grounded conductor). From there you run the hots (ungrounded conductors) and the neutral to the FIRST disconnecting means neutral bar. This bar must be bonded to the can ether by the bonding screw or bar