Pvc mast with metal weatherhead

[tmann]

does anyone know of a code reference that requires a metal weatherhead mounted to a pvc mast to be bonded? local inspector is requiring it and we can't find it in the code. I understand his reasoning behind it, but if anyone is disturbing a metal mast with live conductors, they deserve to be electrocuted. thanks!

 

[fmtjfw]

PVC mast or PVC conduit. Never seen a PVC mast.

That said: Yes, see: 250.4(A)(2) & (3) require the metallic service head to be grounded in some manner.

 

[tmann]

it's pvc with a metal weatherhead

 

[Redcliffe]

is the utility drop secured to the mast? or to the building or some other structual member?

 

[tmann]

the drop is secured to the building. the pvc mast is mounted to the wall with a metal weatherhead. it does not extend above the roof

 

[goldstar]

I've never seen a PVC mast. That being said, in a case where the service entrance conductors are inside a conduit body you are not permitted to change that conduit body. A weather head is part of the conduit body.

 

[ActionDave]

I've never seen a PVC mast. That being said, in a case where the service entrance conductors are inside a conduit body you are not permitted to change that conduit body. A weather head is part of the conduit body.

Huh?

 

[Redcliffe]

why are you using a metal service head with PVC pipe? use PVC service head. problem solved

 

[Redcliffe]

and what you have described is not a mast service.... a mast service goes thru the roof, and in NJ where I am, it has to be GRC.

 

[Pizza]

the drop is secured to the building. the pvc mast is mounted to the wall with a metal weatherhead. it does not extend above the roof

You don't have a mast, you have a riser.



Sent from my iPhone using Tapatalk

 

[ptonsparky]

What he has is a metal weatherhead on a plastic conduit.

IMO, they need to be bonded.

We we use non metallic weather heads often enough. They are available. Try your big box store if nothing else.

 

[mjf]

and what you have described is not a mast service.... a mast service goes thru the roof, and in NJ where I am, it has to be GRC.

I would have to disagree with your definition of a mast service.

change "through the roof" to "above the roofline" and I would agree.

 

[don_resqcapt19]

A mast provides the support for the service drop conductors. If the conduit doesn't provide the support for the service drop conductors, it is just a service raceway.

 

[mjf]

A mast provides the support for the service drop conductors. If the conduit doesn't provide the support for the service drop conductors, it is just a service raceway.

much better definition.

 

[tmann]

sorry I didn't make the wording clear. anyway, it's a pvc raceway with a metal weatherhead and the service is already energized. we know we can change the weather head to pvc, but we're looking for a code reference that says the weatherhead has to be bonded in our situation. the code doesn't really address it directly as far as we can tell.

 

[mjf]

sorry I didn't make the wording clear. anyway, it's a pvc raceway with a metal weatherhead and the service is already energized. we know we can change the weather head to pvc, but we're looking for a code reference that says the weatherhead has to be bonded in our situation. the code doesn't really address it directly as far as we can tell.

check your local POCO spec's

 

[mwm1752]

Didn't know the metal weatherhead was listed to be used with a non metallic raceway -- huh

 

[Michael15956]

we're looking for a code reference that says the weatherhead has to be bonded in our situation. the code doesn't really address it directly as far as we can tell.

Code is 250.4(A)(5)

 

[mwm1752]

Just Curious how everyone else see this

 

[Ponchik]

For me this is an interesting question:

I agree with the NEC references mentioned earlier.

Why does he want the weather head connected to the grounding system? It is on the POCO side so if there is a fault the service OCPD will not open up anyway. If there is a lightning strike, the conduit is non conductive so having the weather head bonded does not mean anything

I am just curious.