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 MIL-HDBK-419A
YES
NO
X
Are all generators grounded?
11.
a.
X
Are the frames of the generators grounded?
b.
Are the neutrals of the generators tied together and grounded by a single
c.
X
lead to the earth electrode subsystem?
MIL-STD-188-124A, 5.1.1.2.5.2; NEC 250-26
12.
Are the ground terminals of all ac outlets connected to the facility
X
ground system through the grounding (green) conductor?
MIL-STD-188-124A, 5.1.1.2.5.3
X
a.
Is one leg of each dc power system grounded?
13.
X
b.
At one point only, i.e, source or load?
MIL-STD-188-124A, 5.1.1.2.5.5
X
Is the facility protected against lightning?
a.
14.
X
Are all antennas inside a 1:1 cone of protection?
b.
MIL-STD-188-124A, 5.1.1.3.2
Do any down conductors of the lightning protection subsystem have bends
15.
X
with a radius less than 20 cm (8 inches) or bends not less than 90?
MIL-STD-188-124A, 5.1.1.3.3
Are all metal objects within 1.8 meters (6 ft) of the lightning down
16.
X
lead bonded to the down conductor or grounded to the facility ground?
MIL-STD-188-124A, 5.1.1.3.3
Are all bonds between elements of the lightning protection subsystem
17.
X
welded or brazed or secured by UL-approved clamps?
MIL-STD-188-124A, 5.1.1.3.4
X
18.
a.
Does the tower have an earth electrode subsystem?
X
Is it connected to the earth electrode subsystem of the building7
b.
MIL-STD-188-124A, 5.1.1.3.8.1
Are the down conductors from the tower bonded to the tower at the base?
X
a.
19.
b.
Are the down conductors run through metal conduit?
X
X
c.
If yes, is the conductor bonded to the conduit at each end?
X
MIL-STD-188-124A, 5.1.1.3.8.3 and 5.1.1.3.7
Is the waveguide grounded (1) near the antenna (2) at the vertical to horizontal
20.
X
transition and (3) at the waveguide entry port?
MIL-STD-188-124A, 5.1.1.3.8.4
2-56
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