(a) Electrical equipment in spaces containing machinery powered by, or fuel tanks for, gasoline or other fuels having a flashpoint of 43.3 °C (110 °F) or lower must be explosion-proof or ignition-protected, or be part of an intrinsically safe system.
(b) Electrical equipment in lockers used to store paint, oil, turpentine, or other flammable liquids must be explosion-proof or be part of an intrinsically safe system.
(c) Explosion-proof equipment and intrinsically safe systems must meet the requirements of § 111.105 in subchapter J of this chapter.
[CGD 85-080, 61 FR 997, Jan. 10, 1996; 61 FR 24465, May 15, 1996]
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 997, Jan. 10, 1996, unless otherwise noted.
cite as: 46 CFR 183.530