×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

HV XLPLE Cable sheath testing

HV XLPLE Cable sheath testing

HV XLPLE Cable sheath testing

(OP)
Any one please discuss regarding HV XLPE cable sheath testing. Where DC Hipot test kit terminals to be connected for cable sheath testing?
Advanced thanks.

RE: HV XLPLE Cable sheath testing

There are slight variations but standard procedure is to apply DC test voltage (10kV is typical) to lead sheath and apply ground/return to test set to outside of cable jacket.  Cable jackets can be semi conducting using graphite or semi-conducting material.

Not as easy as it sounds sometimes.  The best thing to do is to obtain drawings from the MFG on how the ends were sealed for shipment, how the cable will be installed (link boxes connected, etc).  This will explain how the cables are sealed and therefore how you will test on the reel.  Mfg. typically remove some outer semi conducting layer for reel testing so that part is simple. You want to insure testing is performed per the MFG instructions.

After pulling tests can be identical to reel tests if sealed ends are left intact.

Final tests after all installation require require some thought and inspection of cable run to insure no inadvertent grounding of sheath through clamps etc.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources