slip risers

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Is this for 300.5(J)?

300.5(J) Earth Movement. Where direct-buried conductors,
raceways, or cables are subject to movement by settlement
or frost, direct-buried conductors, raceways, or cables shall
be arranged so as to prevent damage to the enclosed con-
ductors or to equipment connected to the raceways.
Informational Note: This section recognizes “S” loops in
underground direct burial to raceway transitions, expansion
fittings in raceway risers to fixed equipment, and, generally,
the provision of flexible connections to equipment subject
to settlement or frost heaves.
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if it is for water drainage, that's a good idea.

I've had services where the ground level at the utility pole was higher than the meter base.

Power companies around here used to bring the pipe up the pole and leave it open at the top.

I guess a lot of meter bases were flooding, cause now they put weatherheads on top of the stubups.


JAP>
 
jap said:
if it is for water drainage, that's a good idea.

I've had services where the ground level at the utility pole was higher than the meter base.

Power companies around here used to bring the pipe up the pole and leave it open at the top.

I guess a lot of meter bases were flooding, cause now they put weatherheads on top of the stubups.


JAP>
Click to expand...

I dont really have specific uses for slip risers over expansion couplings, its kinda just habit that I use slips on resi services. I guess the water flowing out is nice, although the bottom of the meter or panel is not watertight so I dont see how it can flood.
 
I don't understand why the op hasn't responded. I approved his post within minutes of it being posted and he's gone. :) Oh, well I guess he won't get his answer.
 
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