grade, in floor, or in roof slabs, shall be standard weight zinc coated
steel pipe. Sleeves in partitions shall be zinc coated sheet steel
having a nominal weight of not less than 4.4 kg per square meter 0.90
pound per square foot. Space between piping insulation and the sleeve
shall be not less than 6 mm 0.25 inch. Sleeves shall be held securely
in proper position and location during construction. Sleeves shall be
of sufficient length to pass through entire thickness of walls,
partitions, or slabs. Sleeves in floor slabs shall extend 50 mm 2
inches above the finished floor. Space between the pipe and the sleeve
shall be firmly packed with insulation and calked at both ends of the
sleeve with plastic waterproof cement.
]2.2.4
Diesel Fuel System
NFPA 30 and NFPA 37 and the requirements herein.
2.2.4.1
Diesel Fuel Piping System
Factory installed piping shall conform to the engine manufacturer's
standard. Provide flange connections in accordance with ASME B16.1 Class
125 flanges.[ Piping between the engine and the diesel fuel day tank shall
comply with Section 15192N FUEL OIL PIPING.]
2.2.4.2
Diesel Fuel Day Tank System
Provide[ 120][ _____] volt ac diesel fuel day tank system. Include
necessary equipment, piping, controls, wiring, and accessories.
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NOTE: Use the following guidelines for specifying
diesel fuel day tanks:
1. Select integral day tank in skid where
applicable and available. Day tank capacity
available varies from 100 gallons to 5,000 gallons.
2. See NFPA 37 for allowable day tank sizes and
restrictions.
3. Provide an overflow or return line between the
diesel fuel day tank and storage tank in accordance
with NFPA 37 where applicable.
4. Day tank capacity shall be in accordance with
the following table for facilities complying with
MIL-HDBK-1191, "DOD Medical and Dental Treatment
Facilities Design and Construction Guide."
50 KW - 100 KW GEN SET
: 25 MIN - 50 MAX GAL
101 KW - 200 KW GEN SET : 50 MIN - 75 MAX GAL
201 KW - 300 KW GEN SET : 75 MIN - 100 MAX GAL
OVER 300 KW GEN SET
: 100 MIN - 250 MAX GAL
**************************************************************************
a.
Day Tanks: UL 142. Provide[ integral in skid][ free standing] double
wall (110 percent containment) diesel fuel day tanks with a[ minimum
capacity of [_____] hours of engine-generator set operation at
full-rated load][ capacity as indicated]. Epoxy coat day tanks inside
and prime and paint outside. Construct tanks of not less than 4.76 mm
SECTION 16237N
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