Lightning protection


    Maximum operating voltage15 kV
    Protection typeAgainst indirect lightning
    Protection for line, MOA
    Installation1 product per pole

    The SAi10z is intended for ensuring protection of Conductors and Insulators against indirect lightning strikes, installed on Sectionand Termination Poles.

    The SAi10z installed in association with Metal-Oxide-Arrester provides the best possible protection for distribution substations against lighting activity.

    Medium sai10z

    Operational Principle

    The Operational Principle is based on the EasyQuench Technology.

    Using the resistance of the ground between two poles, only one device needs to be installed per Pole.

    This advantage makes the SAi10z a very cost effective solution to protect against more than 80% of the lightning issues.

    Medium sai10z 2

    Technical characteristics

    Medium sai10z 1

    Performance specifications

    Maximum system operating voltage (MSOV), kV 12
    Maximum prospective follow current, kA 1.2
    Breaking follow current*, kA 0.7
    External air gap, mm 50±10
    50% flashover voltage**, kV 85
    Minimum withstand power frequency voltage**, kV
    Dry 30
    Wet 20
    Lightning discharge capability (200 μs)***, C 0.8
    High current impulse (4/10 μs), kA 65
    UV resistance****, h 1000
    Weight, kg 1.0

    * Maximum follow current that LLPD is capable of breaking (quenching) in case of shielding wire presence or 4W system with solidly grounded neutral at MSOV

    ** External air gap specified in the present table

    *** According to IEC 60099-8

    **** According to ISO 4892-2, method A, IEC 62217

    Test Certificates

    Type of Test Laboratory
    High Current impulse test CEPRI
    Lightning discharge capability test CEPRI
    Follow current interrupting test STREAMER
    Standard Lightning Impulse Sparkover Test STREAMER
    Functioning Test STREAMER
    Vibration Test STREAMER