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Mast / Hub connection #205671
03/21/12 11:44 AM
03/21/12 11:44 AM
Willie  Offline OP
New Member
Joined: Mar 2012
Posts: 7
BC Canada
Hi to all, I'm a newbie and enjoy following this forum. Most of my work is commercial but currently am doing a small residential 200 Amp service with a through the roof mast kit. My question is about the connection between the 2 1/2 inch mast and the meter socket hub. As supplied by my electrical supplier, the pipe is not threaded and slips over the hub and is held in place by a set screw. Is this screw the only thing, besides the mast clamps, that holds the mast to the hub ?? Thanks to all who reply. This is a Canadian project.

Last edited by Willie; 03/21/12 11:45 AM.
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Re: Mast / Hub connection [Re: Willie] #205672
03/21/12 11:52 AM
03/21/12 11:52 AM
twh  Offline
Joined: Mar 2004
Posts: 928
Regina, Sask.
On top of the socket is an internally threaded piece that most of us call a hub. A mast adaptor is screwed into that, either as one piece or with a close nipple. The top of the mast adapter has a set screw to hold the mast.

Re: Mast / Hub connection [Re: Willie] #205673
03/21/12 12:17 PM
03/21/12 12:17 PM
Willie  Offline OP
New Member
Joined: Mar 2012
Posts: 7
BC Canada
Thanks........back to work now

Re: Mast / Hub connection [Re: Willie] #205677
03/21/12 05:26 PM
03/21/12 05:26 PM
dougwells  Offline

Joined: May 2003
Posts: 1,142
kamloops BC Canada
The mast is unthreaded, i think the screw is for bonding purposes


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