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  • Standardized implementation of the particular surge cascade stages

    It is possible to connect the particular stages of overvoltage cascades in two ways:



    Connection a prefers protection against lenghtwise overvoltage. Connection b prefers protection against transverse overvoltage. Because statistical results of long-term made measurements affirm generally higher danger of transverse overvoltage (on clamps of appliances L/N) than lengthwise overvoltage (on clamps of appliances L/PE, L/PE), are all the connections and applications of SPD manufacturing range of the Hakel company oriented on preferential protection of appliances against transverse overvoltage.

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