• ETT Level 4.11: Wires, Cables and Buses

    Learn how to identify characteristics of cable system and types of faults.

    1. Fault locating - Identify characteristics of cable system and types of faults. Select and utilize appropriate equipment and technology to locate fault.
    2. Advanced knowledge - Application of appropriate insulations, shields, and jackets.
      • Water Trees are Significant [PDF] Considerable interest exists in the chemical composition of water trees in electrical insulation because of the information it provides about the mechanism of treeing, the possible prevention and detection of this hazard, and the longevity of cable insulation.

    External links are provided by our community of test technicians. Please submit any resources that you feel may be helpful to this topic.


    Recommended: Study tips for the NETA exam

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