TECK cable for underground service?

[electric-ed]

Have any of you used TECK for an underground service supplied from a pole line?

I was wondering -
1. What you used for mechanical protection above grade?

2. Are there weatherhead fittings made for TECK?

Thanks,
Ed

[CRM]

We use teck cable for underground services also. The inspector allows a pvc or metal weatherhead attached to a 6-12 inch piece of conduit, then conduit is sleeved over cable. As far as mechanical protection above grade, we use a 10 foot piece of pvc rigid conduit on the pole.

[u2slow]

My 2nd-year instructor (ex-inspector & contractor) talked about using ACWU with weatherheads all the time. He would add a lug to one of the set screws to take care of the bonding conductor. I'm thinking the same would work for TECK?

[twh]

Teck connector with a threaded weather head and the ground wire cut off. The sheath is bonded on the other end. There is also a heat shrink available that covers the teck and has holes for the conductors.

Mechanical protection would be pvc or rigid, depending on location. Don't run the teck from underground straight into the bottom of a box. When the ground settles, it pulls the teck out of the connector.

[alitt001]

I concur with CRM. This is the best way to do this. I usually use a wet teck connector on the bottom of the box and then about a foot down sleeve it with RPVC conduit. At the top I use a 2 foot section of PVC conduit similar to what CRM describes.

Some inspectors however would have you place a teck connector, rigid coupling, and then a metal weatherhead on top. You might be asked to use the bonding conductor in the teck to bond the weather head.

This is an inferior method because as the UV shrinks the PVC jacket on the teck connector, it pulls out of the connector and water runs between the jacket and armour into the meter socket. The heat shrink boots are not much better even they are pointed down. [img]graemlins/thumbs_down.gif[/img] [img]graemlins/thumbs_down.gif[/img]

<font color="#a62a2a"><font size="1">[ October 28, 2004 12:45 AM: Message edited by: elmer_f ]</font></font>

<font color="#a62a2a" size="1">[ October 28, 2004 12:46 AM: Message edited by: elmer_f ]</font>

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