height of riser above roof needing a guy

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While it mostly depends on the trade size of the riser you're installing, the NEC is silent on the issue. Consult your POCO requirements.
 
480sparky said:
While it mostly depends on the trade size of the riser you're installing, the NEC is silent on the issue. Consult your POCO requirements.
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I agree, contact your POCO and get their requirements.
One of our POCOs require anything over 42" and one anything 48"or over to be guyed.
 
480sparky said:
While it mostly depends on the trade size of the riser you're installing, the NEC is silent on the issue. Consult your POCO requirements.
Click to expand...
Thanks, I will check. I'm installing a 2 1/2 inch riser and would like to run it at least 30 inches above the roof. There is no overhang. The top of the roof at that point is 16 feet high and it is at a parking lot that trucks are using for the business, so I think I need an 18 foot high clearance above the lot.
 
Here in Washington the state has their own requirements. If the striker is 24” or higher above the roof then a guy kit is required.


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Stevenfyeager said:
Thanks, I will check. I'm installing a 2 1/2 inch riser and would like to run it at least 30 inches above the roof. There is no overhang. The top of the roof at that point is 16 feet high and it is at a parking lot that trucks are using for the business, so I think I need an 18 foot high clearance above the lot.
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In which case, if support is required you would have to use two or more rigid members instead of wires.
 
Here in FirstEnergy territory, with anything over 36", "guying by customer may be required per company", so the PoCo engineer lets you know based on distance, wire size/weight and building conditions. Mast height projection up to 30" requires 2" or larger rigid, and 3" or larger rigid for over 30". Two U-bolts or straps bolted into studs are required, and no couplings are permitted above the roof line.
 
Stevenfyeager said:
Thanks, I will check. I'm installing a 2 1/2 inch riser and would like to run it at least 30 inches above the roof. There is no overhang. The top of the roof at that point is 16 feet high and it is at a parking lot that trucks are using for the business, so I think I need an 18 foot high clearance above the lot.
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You need to check with your utility. The length of the span and the height of the pole end attachment point will effect the clearance height over the parking lot.
 
Some POCO's (such as ours) don't allow "periscope" type risers anymore. The heavy snow shedding and tree branches on the service drop tends to break 'em off, so they are no longer allowed.
 
meternerd said:
Some POCO's (such as ours) don't allow "periscope" type risers anymore. The heavy snow shedding and tree branches on the service drop tends to break 'em off, so they are no longer allowed.
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So what do you do if you need more height? Install a fake chimney?

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meternerd said:
Some POCO's (such as ours) don't allow "periscope" type risers anymore. The heavy snow shedding and tree branches on the service drop tends to break 'em off, so they are no longer allowed.
Click to expand...

We had a municipal POCO that after two ice storms in two consecutive years around 12 or so years ago where most of the cost they had was related to repairing service drops, decided that all new services (including service upgrades) will be underground.
 
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