Each oil immersion heater must have the following:
(a) An operating thermostat.
(b) Heating elements that have no electrical contact with the oil.
(c) A high temperature limiting device that:
(1) Opens all conductors to the heater;
(2) Is manually reset; and
(3) Actuates at a temperature below the flashpoint of the oil.
(d) Either—
(1) A low-fluid-level device that opens all conductors to the heater if the operating level drops below the manufacturer's recommended minimum safe level; or
(2) A flow device that opens all conductors to the heater if there is inadequate flow.
[CGD 74-125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94-108, 61 FR 28283, June 4, 1996]
authority: 46 U.S.C. 3306,
3703; DHS Delegation No. 00170.1, Revision No. 01.2. Section 111.05-20 and Subpart 111.106 also issued under sec. 617, Pub. L. 111-281, 124 Stat. 2905
source: CGD 74-125A, 47 FR 15236, Apr. 8, 1982, unless otherwise noted.
cite as: 46 CFR 111.85-1