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Article | REF: R1040 V2

Electrical safety testers

Authors: André LECONTE, Bernard KANTOROWSKI

Publication date: December 10, 2004 | Lire en français

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    9. Multifunction testers

    9.1 Purpose of multifunction testers

    These devices are designed to provide a qualitative, on/off indication of the essential characteristics of the electrical quantities to be known when operating or maintaining electrical installations, in particular :

    • polarity of DC voltages or diodes ;

    • presence and order of magnitude of alternating voltages ;

    • order of phases in a three-phase network ;

    • insulation quality ;

    • continuity of ground connections.

    They are indicated by light and/or sound, notably when predetermined voltage or resistance thresholds are crossed or not....

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