TM 11-5895-846-14
(7) Using a ground clamp, securely fasten the
(11) Once these connections are made the
stripped end of the power ground cable (W8) to the
lines should be checked for proper phase sequence
power drop ground rod.
(phase rotation).
(8) Connect the two W5 power cables at the
(12) With power turned on at the drop, set
shelter power entrance panel Main Power 1 and Main
terminal main power breakers ON.
Power 2.
(13) If the GO lamps light the phase rotation is
(9) Connect the two power adaptor cables,
OK.
W6, to the free ends of the W5 cables.
(14) If the NO GO lamps light and the main
breaker repeatedly trips, the phase rotation is wrong.
WARNING
Two phases must be reversed.
Insure power drop (commercial) has
WARNING
no voltage present during hookup.
Turn off power at the power drop
Insure all shelter power circuit
before reversing terminals.
breakers are off.
(15) To reverse phase rotation to the terminal
(10) Join each of the corresponding fly-leads of
interchange phases A and B of both W6 (Main-1) and
each W6 cable to the power drop junction terminals as
W6 (Main-2) at the power drop.
follows:
(16) Restore power at the drop.
Ground
Power Drop
W6 (Main-1)
W6 (Main-2)
Rod
Phase
Phase
Phase
(17) Recheck for proper phase rotation, steps
-
A
Phase A (L1)
Phase A (L1)
(12) and (13) above.
-
B
Phase B (L2)
Phase B (L2)
2.18. Installing the Radiation Hazard Fence (fig. 2-12
-
C
Phase C (L3)
Phase C (L3)
Ground
Neutral
Neutral
Neutral
(Note #1)
Ground
Green Wire
Green Wire
a. Remove the radiation hazard fence kit. Refer
WARNING
to table 2-1 for the location of stowed items.
Insure ground (green) and neutral
b. Locate one each of two fence posts alongside
(white) are tied together at power
each 16 inch side ground pad and about 1 foot (0.3m)
drop ground rod.
NOTE
c. Orient each fence post so that the warning sign
The AN/TSC-86 requires the neutral
support studs (the front) face outward and away from the
wire to be grounded. If this earth
hazard area. Using the driving cap and hammer, drive
these fence posts into the ground to a depth of about 15
inches (0.4m).
d. Drive a third fence post 59 feet (18m) out in
being supplied, the power drop
front of the 16 inch front center ground pad (along the
neutral should be grounded as noted.
sighting line). Orient the front of this fence post to face
Close coordination with the power
down the sighting line (satellite heading).
supplier is necessary to assure
proper neutral grounding.
2-27