OVATION 1C31164G02 Digital input card

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(4) Measure the resistance of the earthing connection whether it is a ground rod, a water pipe, a counterpoise, or a ground grid to the earth itself. (5) Wherever the total resistance of the total ground circuit is in excess of the values established, measure resistance of individual portions of the circuit to determine the point or points where resistance is excessive and corrective action can be taken. (6) Measure resistance between gates and gateposts to ensure that flexible ground connections are adequate. Resistance higher than one-half ohm indicates a deficiency. (7) Measure resistance between operating rods and handles of group-operated switches and the supporting structure to determine that the flexible connections are adequate. Resistance higher than onehalf ohm indicates a deficiency.

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