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Old 01-24-2014, 06:34 AM   #1
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How do I prepare mast for weather-head to protect feeders?


I'm planning a service upgrade to my house and although I've not measured it yet, looks like I'm going to have to cut a standard length (10' I think) of rigid conduit for my mast. One end of the conduit is threaded and will go to the meter pan. How do I correctly prepare the other end, which will be sharp from the cutter, in order to protect the feeder cables? Do I thread that end too and place a plastic bushing on it, and then place the weather head on?

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Jack

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Old 01-24-2014, 06:57 AM   #2
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How do I prepare mast for weather-head to protect feeders?


You need a service mast, not rigid threaded conduit.
Meter base should have a mast coupler, entrance fitting slip fits on the top of the mast.
Why do you want to cut the mast?

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Old 01-24-2014, 07:04 AM   #3
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How do I prepare mast for weather-head to protect feeders?


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You need a service mast, not rigid threaded conduit.
Meter base should have a mast coupler, entrance fitting slip fits on the top of the mast.
Why do you want to cut the mast?
I did not know I needed a service mast and felt rigid conduit was used. How about standard, schedule-40, 2" galvalized pipe? Would that serve as a service mast?

I haven't looked at the mast coupler. You're saying then, the mast is not threaded into the mast coupler?

Looks like I need a total of 8' mast: about 40" over roof-line, 12" through roof, and another three feet down to the meter pan. Wish to place it exactly as before so I don't have to cut another hole through roof.
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Old 01-24-2014, 07:42 AM   #4
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How do I prepare mast for weather-head to protect feeders?


After the the pipe is cut, ream or file the inside edge to remove burrs and ridges. The mast head slide over the the pipe and is held on by the collar screws.
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Old 01-24-2014, 07:56 AM   #5
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How do I prepare mast for weather-head to protect feeders?


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After the the pipe is cut, ream or file the inside edge to remove burrs and ridges. The mast head slide over the the pipe and is held on by the collar screws.

Ok thanks brric. How about the sch-40 2" galv pipe? Is that a compliant mast?
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Old 01-24-2014, 07:58 AM   #6
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How do I prepare mast for weather-head to protect feeders?


You need to check with your local utility on what their requirements are. Where I am the minimum mast size has been increased to 3".
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Old 01-24-2014, 08:04 AM   #7
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How do I prepare mast for weather-head to protect feeders?


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You need to check with your local utility on what their requirements are. Where I am the minimum mast size has been increased to 3".
And the 40" above the roofline might require a guy wire.
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Old 01-24-2014, 08:09 AM   #8
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How do I prepare mast for weather-head to protect feeders?


Ok guys. Just seems I'm running into a lot of details which are critical for a successful and safe service upgrade. I have spoken with my inspection office and they seem to be very willing to assist me with the installation and as a non-professional, I really don't mind paying for two inspections if the first uncovers something I've missed. Only $75.00 for second which I think is money well spent for such an important job.
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Old 01-24-2014, 08:25 AM   #9
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How do I prepare mast for weather-head to protect feeders?


Go to your local utilities' web site and look for residential service specs. They should have every detail you will need. From the height range of the meter box and what models of meter box. Ground rods. Mast attachment. Everything. If you follow their specs the inspection will be needed only once.
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Old 01-24-2014, 08:29 AM   #10
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How do I prepare mast for weather-head to protect feeders?


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Go to your local utilities' web site and look for residential service specs. They should have every detail you will need. From the height range of the meter box and what models of meter box. Ground rods. Mast attachment. Everything. If you follow their specs the inspection will be needed only once.
I have already and didn't seem to cover everything. I will look again. Didn't read it carefully the first time anyway.

Thanks a bunch though.
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Old 01-24-2014, 08:39 AM   #11
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How do I prepare mast for weather-head to protect feeders?


You may have to go to their office if their web capabilities are limited. Just tell them what you're up to and they should hand you a packet with all the dope inside.

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