ECN Forum Forums Code Related Discussion NEC & other Code issues Objectionable current

i count two Al


my thought also, there are none for 1/2 mile here, i've also learned this is direct burial, and old (30 yrs) too, just to add to any theories anyone might have here.

i managed to fanagel the inspector there today.

he felt i should bond everything, which i am now doing, then go looking for the same problems i'm quackin' about here.

i had it in mind anyways....

maybe i can get a pix of that x-former here, that %$#! digital is smarter than i.....

~S

thank you Webmaster

perhaps a pix helps this thread

pix#1
is the pole & x-formers above the meter on pix #2 below it
i may be wrong on the two wires, that lower one must be a noodle there...?

pix#2
is the wonderful 3 ph meter arrangement, 2 service laterals, the LB has the single phase , and yes it's double lugged under all but the high leg.....

pix#3
is the pumphouse, the disco you see is a fused nema3R. There was no external disco before, but it seemed like the thing to do as the pipe was cracked and wires were exposed.
you can see the chain link fence to the right, which continues onto
pix#4
and the poolhouse

(i don't know why those digitals do this, it looks like high winds, and i turn perfectly good shots of people into looking like gumby...)

Looks like a classic open wye primary and open delta secondary.

The conductor below the transformers that's heading to the right is the PoCo primary neutral. This neutral will be bonded to the ground wire coming down the pole from the lightning arrestors on the crossarm.

Seeing that this is the end of the PoCo primary, another effect that might have some bearing on the situation comes to mind. Surges caused by lightning, when they arrive at this pole will reflect back onto the primary off of the large impedance change between the open wire and the primary transformer winding. During the interval that the reflection is occuring, the surge voltage is doubled. Underground conductor damage, especially the neutral, is a possibility.

Check that the ground at the pole is working, . . .you should be able to measure current with a clampon.

(edited out reference to primary cutouts, which are not used in this installation - Al)

[This message has been edited by ElectricAL (edited 07-17-2003).]

It'll be a few days before i can get back there Al, and that'll be my first mission, thanks.