PS Magazine - JULY 1978
PS, The Preventative Maintenance Monthly
ISSUE 308
JULY 1978
I
If these bad spots cover less tHan 3
incHes of wire, tape tHem. If lOnger,
cut tHem out and splice tHe wire±
To decide wHat wire you can keep
and use again, and wHicH you turn in
for a trip to disposal, uSe tHese
guidelines:
Using a multimeter, cHeck for loop
resistance±
WD-1
should sHow 200-
230 oHmS per mile at 70°F²
Remember tHat
cold weatHer
reduceS resistance± Also, wire lengtH
and
reSistance
cHange
pro³
portioNately´So, if you Have a Y-mile
loop, you SHould Have
115
oHms
resistance±
A
considerably Higher tHan normal
reading sHows bad splices or a break in
the wire± Considerably lower and it's a
leak or sHort circuitµ
_
Check your splices
it's only good for training± If it fails all
tests, Have it turned in¶
Turn-in procedures Have cH·nged a
¸
little. ¹ou don't cut tºe wire into strips
anymore. ¹ou wind it into 3»ft
diameter rollS, tape or tie it togetHer
and Have it inspected and tagged±
Tape bad wire into
3-ft diameteR rolls
IF YOU HaVE
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