Information on Pole Mounted Transformer used by cable companies

[fbhwt]

Anyone have information on these transformers? We have a "ALPHA" box mounted on a pole being fed by breaker disconnect. From what I have read this is a step down transformer. Anyone here install these, what are the requirements?

 

[hbiss]

Those are power supplies that provide 60 or 90VAC. They can be had as straight step down transformers or with battery backup much like a UPS.

When I worked for a cable company we would mount them on the pole and connect them to our system. Then they had a local EC (who had a bucket truck) go around and connect the power for them and handle the POCO filing and paperwork. Usually 120V/20A off the secondaries through a fuseable disconnect.

-Hal

 

[fbhwt]

Those are power supplies that provide 60 or 90VAC. They can be had as straight step down transformers or with battery backup much like a UPS.

When I worked for a cable company we would mount them on the pole and connect them to our system. Then they had a local EC (who had a bucket truck) go around and connect the power for them and handle the POCO filing and paperwork. Usually 120V/20A off the secondaries through a fuseable disconnect.

-Hal

The weather proof hub on the disconnect that feeds this transformer is broken, I've been tasked with getting this repaired. This transformer is on a military installation. I work for facilities maintenance; typically we only provide power to the disconnect. I'm in the process of figuring out who is responsible for the repairs. Thanks for the info!

 

[hbiss]

If I remember correctly he just used a piece of 12/2 UF and stapled it up the pole, stripped the end and bugged to the neutral and one phase. So a UF weatherproof connector into the disconnect.

-Hal

 

[fbhwt]

If I remember correctly he just used a piece of 12/2 UF and stapled it up the pole, stripped the end and bugged to the neutral and one phase. So a UF weatherproof connector into the disconnect.

-Hal

This particular service has PVC conduit and weather head, appears to be #8AWG, load side is protected by single pole 20A breaker.