except that 28kV and 35kV insulation test voltages shall be in
accordance with either AEIC CS8 or AEIC CS6 as applicable, and
shall not exceed the recommendations of IEEE Std 404 cable joints
and IEEE Std 48 for cable terminations unless the cable and
accessory manufacturers indicate higher voltages are acceptable
for testing. Should any cable fail due to a weakness of conductor
insulation or due to defects or injuries incidental to the
installation or because of improper installation of cable, cable
joints, terminations, or other connections, the Contractor shall
make necessary repairs or replace cables as directed. Repaired or
replaced cables shall be retested.
c.
Ground-Resistance Tests. The resistance of [each grounding
electrode] [each grounding electrode system] [the ground mat] [the
ground ring] shall be measured using the fall-of-potential method
defined in IEEE Std 81. Ground resistance measurements shall be
made before the electrical distribution system is energized and
shall be made in normally dry conditions not less than 48 hours
after the last rainfall. Resistance measurements of separate
grounding electrode systems shall be made before the systems are
bonded together below grade. The combined resistance of separate
systems may be used to meet the requirements resistance, but the
specified number of electrodes must still be provided as follows:
(1.)
Single rod electrode - [25] [_____] ohms.
(2.)
Multiple rod electrodes - [_____] ohms.
(3.)
Ground mat - [_____] ohms.
d.
Circuit breakers and switchgear shall be examined and tested in
accordance with the manufacturer's published instructions for
3.5.3
Inspections
The following inspections shall be performed jointly by the Contracting
Officer and the Contractor, after complete installation of each
engine-generator set and its associated equipment, and prior to startup of
the engine-generator set. Checks applicable to the installation shall be
performed. The results of those which are physical inspections (I) shall
be documented by the Contractor and submitted in accordance with paragraph
SUBMITTALS. The Contractor shall present manufacturer's data for the
inspections designated (D) at the time of inspection. Inspections shall
verify that equipment type, features, accessibility, installation and
condition are in accordance with the contract specification.
Manufacturer's statements shall certify provision of features which cannot
be verified visually.
1.
(I)
2.
Governor type and features.
(I)
3.
Engine timing mark.
(I)
4.
Starting motor.
(I)
5.
Starting aids.
(I)
6.
Coolant type and concentration.
(D)
7.
Radiator drains.
(I)
8.
Block coolant drains.
(I)
9.
Coolant fill level.
(I)
10.
Coolant line connections.
(I)
SECTION 16263A
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