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Old 06-12-2017, 07:46 PM   #21
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Originally Posted by Forge Boyz View Post
Here is the service on a project we are doing. It's 5 4" up the pole from a 2000 amp freestanding CT cabinet. We pulled the cables to the base of the pole and they stacked it up and put the weather heads on(which we provided). The two conduits on the right are feeding the existing service and will be taken down in the course of the project.Attachment 106898

I'm surprised your poco allows an overhead service that big, that would be a pad mount here or enclosed freestanding transformers.
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Old 06-12-2017, 07:46 PM   #22
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Originally Posted by Scanlon Electric View Post
In the past we have always done a service upgrade via an aerial SER cable; however, this time the customer wants an under ground service.

Service upgrade: 200 amp.
The run: 45' from pole to meter socket
In 2-1/2" PVC Sch 40 with a 90 degree sweep at each end.
(Yes, I know the conduit is larger then needed)
Wire: Plan to use triplex 4/0-4/0-2/0 alum. URD

Questions:

1) Not a long run, but I am not sure about how easy it is to pull a triplex, or if it is best to pull individual DER wires.

2) What do you use for the transition from PVC to a cable run for up the pole, Service Entrance water-tight connector?

2.a.) Since the wires are not all the same size, is a Service Entrance water-tight connector going to seal properly to keep water from getting into the conduit over time? (I prefer to keep the conduit it dry)

2.b.) What type of water tight connector do you prefer?

Any other input is welcome.

Thank you in advance.
Don't forget an expansion fitting under the meter socket.
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Old 06-12-2017, 07:54 PM   #23
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I'm surprised your poco allows an overhead service that big, that would be a pad mount here or enclosed freestanding transformers.
Here it's two loops max. Anymore and they can't climb if they have too.
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Old 06-12-2017, 08:01 PM   #24
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By the way, true URD, and the similar USE, triplex is as rough as a cat's tongue. It can be rough to pull through conduit. But it should just fall into that 2.5".
just dump a bottle of 'lovin' in there and let er rip.
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Old 06-12-2017, 08:09 PM   #25
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I'm surprised your poco allows an overhead service that big, that would be a pad mount here or enclosed freestanding transformers.
I was a little surprised as well, but no one is complaining. They hooked it up for free
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Old 06-12-2017, 08:10 PM   #26
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Once upon a time , it was like most of you guys a re saying , but since deregulation
poco won't hardly do anything anymore.

We have to pipe all the way up the pole and leave 5' hanging out a weather head.
We have to use large 3' sweep 90's @ the base of the pole. These are POZCO rules
here now.

I include the rental of a boom lift now for these type jobs.

Also..what other electrician above said...expansion couplings too.
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Old 06-12-2017, 08:14 PM   #27
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I've done/seen:

Customer does it all up to the pole.

Run conduit and pull rope, poco supplies and pulls.

Run conduit, customer supplies, poco helps with pull.

Mount meter socket, poco runs conduit and does the rest.
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Old 06-12-2017, 08:17 PM   #28
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Here it's two loops max. Anymore and they can't climb if they have too.
First Energy doesn't climb.
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Old 06-12-2017, 08:18 PM   #29
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Quote:
Originally Posted by MTW View Post
I've done/seen:

Customer does it all up to the pole.

Run conduit and pull rope, poco supplies and pulls.

Run conduit, customer supplies, poco helps with pull.

Mount meter socket, poco runs conduit and does the rest.
Not true.
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Old 06-12-2017, 08:19 PM   #30
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Not true.
Ok forum mom.
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Old 06-12-2017, 08:32 PM   #31
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Hereabouts the Service comes as a Lateral, the transformers are pad mount.

You have to go to the sticks or the old part of town to see pots in the sky.

They are prone to go flying during earthquakes... taking the conductors with them.

I only had one job that forced me up the pole.

If this happens to you, beware that the location at the pole, relative to the flow of traffic, is a BIG deal.

You're going to end up working off of Poco approved plans... typically generated by their engineers.

They can punch these out lickety split -- and then they bill the property owner.

The typical Poco will come into legal possession of the Service Lateral... without paying a thin dime. You build it, the property owner pays for it, then all the work ahead of the meter is deeded over to the Poco. (typ)

Such work never follows the NEC. It's outside it. It follows the Poco's standards... right down the line.

This is why the fellows posting here have such different tales.

Service Laterals// Service Drops are a Poco by Poco 'thing.'

So don't spend too much time designing them, the Poco is really calling the shots.

Sometimes, their decisions will amaze you.

You might find yourself dealing with an area that is destined to go entirely underground... but not just yet. So you have a half-breed scheme. PVC underground everywhere, until it has to reach the sky. The intention is to link the (currently empty) PVC run, from property line to property line, sometime down the road.

The property owner plays ball or gets no power.
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Old 06-12-2017, 08:41 PM   #32
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Here's an example of a commercial service for a bank. You can see the conductors come up thru the shroud. Also the solar panel with micro inverter backfeeding directly into the grid.
Attached Thumbnails
Underground residential serivce 200A-screen-shot-2017-06-12-8.39.34-pm.png  

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Old 06-12-2017, 09:00 PM   #33
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In Western PA., it depends on the PoCo.
In Dusquesne Light, the electrician supplies and installs conduit to the pole and supplies Pole Guard. The PoCo, runs the wie up the pole and covers it with the Pole Guard.
In West Penn Power. The PoCo, the electrician supplies the conduit only to the pole. the PoCo supplies and installs the wire.

But that can all change, depending on the PoCo Engineer. Sometimes the Poco will run underground to a pad mounted transformer.

The OP needs to contact the Power Company to get answers.
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Old 06-12-2017, 09:08 PM   #34
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Quote:
Originally Posted by telsa View Post
Hereabouts the Service comes as a Lateral, the transformers are pad mount.

You have to go to the sticks or the old part of town to see pots in the sky.

They are prone to go flying during earthquakes... taking the conductors with them.

I only had one job that forced me up the pole.

If this happens to you, beware that the location at the pole, relative to the flow of traffic, is a BIG deal.

You're going to end up working off of Poco approved plans... typically generated by their engineers.

They can punch these out lickety split -- and then they bill the property owner.

The typical Poco will come into legal possession of the Service Lateral... without paying a thin dime. You build it, the property owner pays for it, then all the work ahead of the meter is deeded over to the Poco. (typ)

Such work never follows the NEC. It's outside it. It follows the Poco's standards... right down the line.

This is why the fellows posting here have such different tales.

Service Laterals// Service Drops are a Poco by Poco 'thing.'

So don't spend too much time designing them, the Poco is really calling the shots.

Sometimes, their decisions will amaze you.

You might find yourself dealing with an area that is destined to go entirely underground... but not just yet. So you have a half-breed scheme. PVC underground everywhere, until it has to reach the sky. The intention is to link the (currently empty) PVC run, from property line to property line, sometime down the road.

The property owner plays ball or gets no power.
Sure seems Cali is just difficult on all levels.
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Old 06-12-2017, 09:19 PM   #35
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Sure seems Cali is just difficult on all levels.
Yup.
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Old 06-12-2017, 10:48 PM   #36
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The only time I see weather heads on pole risers is commercial/industrial. The difference is, a residential service, the POCO provides the wire and connects it to the metering equipment. Industrial riser wiring is done by the EC, usually. Any commercial near me, the EC is responsible for the wiring to the transformer. Electricians use weather heads, linemen don't.
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Old 06-13-2017, 07:26 PM   #37
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Most generally we would put the meter on the pole with a weatherhead and run the urd to the first point of disconnect. Utility company handles the riser. If they want the meter on the house, even better. We install the conduit and run pull line for them to use, then cap the conduit off and they bring it down the pole and to the meter can. We have it easy.
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