EMERSON KJ3001X1-BK1 Analog output board

EMERSON KJ3001X1-BK1 Analog output board

A low resistance reading (<10 ohms) indicates that the neutral is connected to ground somewhere other than at the first service disconnect. This ground connection must be located and removed. Under normal operation, a one megohm resistance should easily be attained. (d) Measure for stray currents using a clamp-on ammeter in the safety ground network at selected points throughout the facility. Choose a sufficient number of points to give an indication of the relative stray current level in the facility. In facilities containing electronic equipment, record and take action to correct all levels greater than 0.1 ampere. (5) A comprehensive survey of the signal reference subsystem should include the following items (figure 6-5). (a) Prepare a general description of the methods, techniques, and practices of signal grounding in the facility. Determine if an identifiable, dedicated signal grounding network is present. Note the equipment served by the network. Include the description of this network and record the location and size of wires or buses used as signal conductors. Also determine the existence of an equipotential plane.

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