HV Grounding(15kV systems)URGENT!!!!
- Thread starter rey-man
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Re: HV Grounding(15kV systems)URGENT!!!!
Give more details...Type and size of cable? MGN or ungrounded secondary supply?
Contact a customer service engineer at the local utility. Also call the nearest IBEW lineman local, for companies experienced in medium voltage installations.
Give more details...Type and size of cable? MGN or ungrounded secondary supply?
Contact a customer service engineer at the local utility. Also call the nearest IBEW lineman local, for companies experienced in medium voltage installations.
Re: HV Grounding(15kV systems)URGENT!!!!
For starter(s), see:
250 Part X.
250.180 " - - - shall comply with all applicable
provisions of preceeding sections of this article and with 250.182 through 250.190, - - -"
250 Part I & up.
250.4
250.134, especially 250.134(B).
250.122.
Some cables just have a minimum (size) of shielding which is nothing more than a static drain wire.
Others have an (equivalent) 1/3rd size of the phase conductor, so that grounding conductors on 3 of the phase Conductors equals a full size grounded conductor when terminated at each end of the cable run.
The above description is basic only.
Consult the cable manufacturer by e-mail.
[ June 11, 2003, 03:15 PM: Message edited by: gwz2 ]
For starter(s), see:
250 Part X.
250.180 " - - - shall comply with all applicable
provisions of preceeding sections of this article and with 250.182 through 250.190, - - -"
250 Part I & up.
250.4
250.134, especially 250.134(B).
250.122.
Some cables just have a minimum (size) of shielding which is nothing more than a static drain wire.
Others have an (equivalent) 1/3rd size of the phase conductor, so that grounding conductors on 3 of the phase Conductors equals a full size grounded conductor when terminated at each end of the cable run.
The above description is basic only.
Consult the cable manufacturer by e-mail.
[ June 11, 2003, 03:15 PM: Message edited by: gwz2 ]
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