Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
Issue 8 July 1999
Installation 5 - 3
Figure 5-1 shows the ac input conduit hole. Figure 5-2 shows
termination points for the ac input wires. The “green wire” is the
ac equipment ground (AC EG), also known as frame ground
(FR GRD). Its termination point is on the left wall of the
rectifier near the ac input conduit hole.
Table 5-A shows the recommended customer-supplied fuse size
and type for the branch circuit protection in the ac service panel
supplying input to the rectifier. The types shown are Bussmann
(a trademark of the Bussmann company) fuses. Equivalent UL
listed fuses or circuit breakers can be used in lieu of those shown.
If circuit breakers are used, they should have trip elements of an
equivalent rating to the recommended fuse.
The AC EG or frame ground is normally connected using the
mechanical connection provided. Discard this connection if you
prefer the T&B crimp connection, which is also provided. Use
T&B crimp tool WT1300 on the crimp connection. (See Note 65
on the J85502C-1 drawing.)
DC Output Power
The majority of dc power plants for telecommunication
applications are designed to use single conductor cables (in
parallel for current capacity or to limit voltage drop) supported
Table 5-A: AC Input Requirements
List
Amps/V
olts
Line
Fuse
Type,
Rating
Input
Circuit
Breaker
Size
(amps)
Number of
Input
Wires
including
AC
Ground,
and Gauge
of Wires*
Armored
Cable
Trade
Size
(inches)
for Wire
Size
Shown
Conduit
Knockout
and
Conduit
Trade
Size**
(inches)
Heat
Shrink
Tubing
(inch)
Crimp
Connector
or Lug for
Input
Wires, and
AC Ground
Crimp
Tool and
Die from
T&B
L1
208/21.2
or
240/18.4
FRN-R,
25
30/25
3, #10 AWG
1/2
1-1/8, 3/4
3/8 x 1
T&B C36
WT 1300
L2
208/42.2
FRN-R,
50
50
2, #8 AWG
and
1, #10 AWG
1/4 x 1,
3/8 x 1
T&B 54104
or
WP91412L1,
T&B C36
TBM 5S
or 20S
Red,
WT 1300
240/36.7
FRN-R,
45
50
* #10 AWG wire for List 2 is “green wire” ac ground. Use KS-24194 L3 or 75°C commercial wire.
** Where the trade size of the conduit is smaller than the trade size for which the conduit knockout was sized, use
appropriate knockout reducing washers.
