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  • Users: sparky_007
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  1. sparky_007

    Teck90 Outer PVC Jacket Removed??

    Hello, I have never used a LV Teck90 cable before and I feel this to be a bit strange. I was told that the outer PVC jacket is removed on a Teck90 cable before installing. Is this true and a common practice? Thank you!
  2. sparky_007

    Two transformers connected via Manual Transfer Switch - OCPD Required on secondary

    Hello, We have an existing 20MVA 13.8kV/6.9kV Wye-Delta transformer and the client wants to add another spare transformer (10MVA, 13.8kV/6.9kV Wye-Delta) that they have as back-up. Not possible to connect the 6.9kV secondary of the spare transformer to a spare breaker on the 6.9kV switchgear as...
  3. sparky_007

    Transformer Neutral Cable - Shielded or Unshielded ?

    Hello, For a transformer 13.8kV WYE-Neutral bushing to NGR (Low Resistance Grounded) cable or 69kV WYE-Neutral to Ground cable (Solidly Grounded) cables, is it shielded or unshielded? Per NEC/CEC standards, any cable above 2kV should be shielded and by that requirement, neutral cable shall be...

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