Mont. Admin. R. 24.122.301 - DEFINITIONS
For the purposes of this chapter, the following definitions apply:
(1) "Boiler classification"
means for the purpose of determining the appropriate class of boiler operating
engineer's license required:
(a) a
determination of the conditions under which the boiler is actually being
operated, with respect to:
(i) the operating
pressure;
(ii) the operating
temperature; and
(iii) the BTUs per
hour or horsepower per hour produced; but
(b) is not based upon the maximum allowable
working pressure (MAWP) rating limit(s) established on the boiler's
manufacturer's data plate.
(i) The department
may require the boiler owner to provide appropriate verification from the power
supplier, which establishes the BTU per hour or horsepower per hour rate at
which the boiler is being fired, as applicable.
(2) "Department" means the Department of
Labor and Industry.
(3) "Hot water
supply boiler" means a boiler, completely filled with water, intended for
operation at pressures not exceeding 160 psig and/or temperatures exceeding 250
degrees F., measured at or near the boiler outlet, that furnishes hot water to
be used external to itself.
(4)
"Monitoring" the operation of a boiler means appropriate periodic maintenance
and observation of the functioning of a hot water heating boiler or hot water
supply boiler, which contains all failsafe features necessary to operate fully
unattended. Failsafe features include control circuitry that stops the flow of
fuel and/or control feed water to the boiler.
(5) "Operating" a power boiler or steam
engine means the manual operating and monitoring of an automatically fired
power boiler or steam engine, which requires the operator to be present while
the boiler is fired.
(6) "Power
boiler" means a boiler in which steam or other vapor is generated at a pressure
of more than 15 pounds per square inch gauge pressure (psig).
(7) The department incorporates by reference
the definitions related to boiler operators in building code rules at ARM
24.301.711, which include the
following terms:
(a) boiler;
(b) high temperature water boiler;
(c) hot water heating boiler;
(d) standard boiler;
(e) state special boiler;
(f) steam heating boiler;
(g) temporary boiler;
(h) traction engine;
(i) water heater; and
(j) water heating system.
Notes
50-74-101, MCA; IMP, 50-74-101, MCA;
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