Each ungrounded system must be provided with a suitably sensitive ground detection system, located at the respective switchboard, that provides continuous indication of circuit status to ground with a provision to momentarily remove the indicating device from the reference ground.
[CGD 85-080, 62 FR 51352, Sept. 30, 1997]
authority: 46 U.S.C. 2103,
3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1
source: CGD 85-080, 61 FR 928, Jan. 10, 1996, unless otherwise noted.
cite as: 46 CFR 120.378