reached, and then hold.
When, in a 10 minute period the pressure
drop does not exceed 1245 Pa 5 inches water gage, the casing shall
be regarded as tight and accepted. Use air pressure and soap
bubble tests or comparative carbon dioxide readings for induced
3.2.5.2
Boiler Inspection
The Boiler Inspector shall be present to witness the appropriate tests
which need to be observed in order to certify the safety of the boiler.
The inspection shall include the requirements of NAVFAC MO 324. The Boiler
Inspector shall complete NAVFAC form 9-11014/40, Data Record Sheet; NAVFAC
form 9-11014/41, Inspection Report; NAVFAC 9-11014/32 Inspection
Certificate for each boiler after inspecting the boiler and finding it to
be safe. No boiler may be fired until it has passed the inspection of the
Boiler Inspector. The boiler inspection forms shall be submitted through
the Contractor to the Contracting Officer. The Inspection Certificate
shall be placed under framed glass, mounted on or near the boiler in a
conspicuous location.
3.2.5.3
Boiler Cleaning and Startup
Dry out, boil out, and operate the firing rate of the new boiler(s) under
presence of the boiler room operating personnel]. Provide chemicals that
are required. Allow sufficient time for the boiling out process to ensure
interior surfaces are clean. This time shall be at least 24 continuous
hours and generally not more than 36 hours; boil out shall continue until
water is clear. Boil out, cleaning and starting procedures shall be in
accordance with requirements of ASME BPVC SEC VII, and FM DS 12-17.
3.2.5.4
Conduct a boiler operational test on each unit continuously for two weeks.
Operate one boiler at a time to demonstrate control and operational
conformance to specified requirements including ability to respond to load
swings from the specified capacity to minimum turndown. Operational test
shall be conducted under the supervision of a registered professional
engineer or a licensed power plant operator and shall serve to prove
safeties, controls, maintenance of stable combustion at low loads[, proper
coal distribution and combustion, and ability to operate without furnace
slagging][, proper flame lengths and patterns to avoid flame impingement on
the tubes for oil firing], and proper mechanical and electrical functioning
of systems. This test shall include each item mentioned in this
specification as well as each item mentioned in the specification of the
particular pieces of equipment. Conduct tests with factory trained
combustion equipment engineers, as previously specified. Test and record
steam quality rates of steam flow, flue gas temperature, percentages of
carbon dioxide, carbon monoxide, oxygen and nitrogen in the flue gas and
percent excess air for each boiler at tested load and graphically present
test data.
3.2.6
General Operational Tests
3.2.6.1
General Controls
conducted with boiler controls functional and on line. No bypassing, use
SECTION 15502N
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