Facility Maintenance Procedure (Fault Protection Subsystem (Safety Ground)).
TECHNICAL DATA REFERENCES:
Grounding, Bonding, and Shielding, MIL-HDBK-419A Volumes I and II, MIL-STD-188-124A.
National Electrical Code NFPA 70.
RELATED MAINTENANCE PROCEDURES:
Earth Electrode Subsystem.
APPLICABLE TEST PROCEDURES:
Bond Resistance Test (see Section 18.104.22.168.1).
TEST EQUIPMENT REQUIRED:
Double Balanced Resistance Bridge or approved Ohmmeter capable of measuring resistances of one
milliohm, five milliohms and one megohm.
Clamp-on AC Ammeter.
Camera, if desired.
Film and flashbulbs or electronic flash for camera, if used.
Follow the inspection procedure of Section 22.214.171.124.4.
on safety ground to insure that the ground terminals on the receptacles are properly grounded to the facility
ground system and no currents are flowing on grounding conductor (see Sections 1.4.5 and 3.2.2).
Record the results of the inspection measured stray current levels and resistance values in Part IV
of the Facility Maintenance Report.
File a Major Discrepancy Report on all major deficiencies (particularly those representing a
violation of MIL-STD-188-124A and the National Electrical Code).