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I've got a job in NJ where we have to go overhead for a relatively short distance

700' or so with three phase #2 ACSR through an open field.

Its a relatively straight shot.

Any rules of thumb for selecting pole class?

I have the NESC and the RUS design guide - but I don't want to go crazy on the calcs for something this small.

Any help would be appreciated


 

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NJWVUGrad said:
I've got a job in NJ where we have to go overhead for a relatively short distance 700' or so with three phase #2 ACSR through an open field. Its a relatively straight shot. Any rules of thumb for selecting pole class? I have the NESC and the RUS design guide - but I don't want to go crazy on the calcs for something this small. Any help would be appreciated
You call 700 ' short distance
 

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Chewy has a small pole. Maybe he can help???
Space your poles at no more than 2.5 chains or 55yds each.

18ft clearance must be maintained from the ground but can go down to 9ft in the drop to the home or 12ft for a commercial building.

The poles must be able to withstand four times the load to which they are subjected.

The attached pictures may be of some help.
 

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Electrical Contractor
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Space your poles at no more than 2.5 chains or 55yds each.

18ft clearance must be maintained from the ground but can go down to 9ft in the drop to the home or 12ft for a commercial building.

The poles must be able to withstand four times the load to which they are subjected.

The attached pictures may be of some help.
setting poles in NZ, 2014


Setting poles in North American 1970s

 

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I would think that 13.8 kv would maybe need a bit more height than 10 ft from ground Chewy.
 

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setting poles in NZ, 2014

Setting poles in North American 1970s
We direct burial our cables now, the illustrations were for the benifif of someone who may not have had access to hiab trucks and borers.
 

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We direct burial our cables now, the illustrations were for the benifif of someone who may not have had access to hiab trucks and borers.
It's interesting to look at the old books on techniques from 50+ years ago.
The way construction happened back then (and I guess today in less mechanized societies), was so labour intensive:eek:
What would 95% of workers do today, if you took away their battery tools, laser levels and all the rest of the tools they rely on?
 

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It's interesting to look at the old books on techniques from 50+ years ago.
The way construction happened back then (and I guess today in less mechanized societies), was so labour intensive:eek:
What would 95% of workers do today, if you took away their battery tools, laser levels and all the rest of the tools they rely on?
I had to pick up an apprentices jaw off the ground when I used a maul and a plugging chisel to make a 2" hole for conduit through brick rather than getting a core driller in.
 

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Space your poles at no more than 2.5 chains or 55yds each.

18ft clearance must be maintained from the ground but can go down to 9ft in the drop to the home or 12ft for a commercial building.

The poles must be able to withstand four times the load to which they are subjected.

The attached pictures may be of some help.
Is that the American electricians handbook?
 

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It's interesting to look at the old books on techniques from 50+ years ago.
The way construction happened back then (and I guess today in less mechanized societies), was so labour intensive:eek:
What would 95% of workers do today, if you took away their battery tools, laser levels and all the rest of the tools they rely on?
have more apprentices.lol
 

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I'm sure you've already done the job already. But here, we do 270' spans between poles, and in an open field using RUS standards, the min height for that would be 18'6" I believe without looking. If you use cross arms, 35' poles are good. Without cross arms (Vertical configuration), I might use 40's. All the poles we use are class 4 or class 3.
 

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I'm sure you've already done the job already. But here, we do 270' spans between poles, and in an open field using RUS standards, the min height for that would be 18'6" I believe without looking. If you use cross arms, 35' poles are good. Without cross arms (Vertical configuration), I might use 40's. All the poles we use are class 4 or class 3.


That sound a lot closer to the way we have to do it.
Other than nothing under 40' poles now for us for primary.


Sent from my iPhone using electriciantalk.com
 

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What would 95% of workers do today, if you took away their battery tools, laser levels and all the rest of the tools they rely on?
There'd be a lot fewer memes.
 
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