GE HEALTHCARE
D
IRECTION 5141177-100, REVISION 14 BRIGHTSPEED ELITE, EDGE, EXCEL: PRE-INSTALLATION
Chapter 8 - Power Requirements Page 131
8– Power Req’s
1.) Table 8-1, Table 8-2, and Table 8-3 above are based on the use of copper wire, rated 75 C
and run in steel conduit. Ampacity is determined in accordance with the National Electrical
Code (NFPA 70), Table 310-16 (2002)
2.) The minimum feeder size is determined by the ampacity of the circuit protection device listed
above, except where a larger size is necessary to meet total source regulation limits.
3.) A 1/0 (55 sq. mm) ground wire is recommended in all cases.
FEEDER
LENGTH
( M D A T O A 1 )
FEET (METERS)
MINIMUM FEEDER WIRE SIZE, AWG OR MCM (SQ. MM)/ VAC
200 VAC 220 VAC 240 VAC 380 VAC 400 VAC 420 VAC 440 VAC 460 VAC 480 VAC
50 (15) 1 (45) 2 (35) 3 (30) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22)
100 (30) 1/0 (55) 1/0 (55) 1 (45) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22)
150 (46) 3/0 (85) 2/0 (70) 2/0 (70) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22) 4 (22)
200 (61) 4/0 (100) 4/0 (100) 3/0 (85) 2 (35) 3 (30) 3 (30) 4 (22) 4 (22) 4 (22)
250 (76) 5/0 (125) 5/0 (125) 4/0 (100) 2 (35) 2 (35) 2 (35) 3 (30) 3 (30) 4 (22)
300 (91) 6/0 (170) 5/0 (125) 5/0 (125) 1 (45) 1 (45) 2 (35) 2 (35) 2 (35) 3 (30)
350 (107) 7/0 (215) 6/0 (170) 5/0 (125) 1/0 (55) 1/0 (55) 1 (45) 1 (45) 2 (35) 2 (35)
400 (122) 7/0 (215) 7/0 (215) 6/0 (170) 2/0 (70) 1/0 (55) 1/0 (55) 1 (45) 1 (45) 1 (45)
Table 8-2 Minimum Feeder Wire Size
SUB-FEEDER
LENGTH (A1 TO
PM) FEET
(METERS
)
MINIMUM SUB-FEEDER WIRE, AWG OR MCM (SQ. MM)
200 VAC 220 VAC 240 VAC 380 VAC 400 VAC 420 VAC 440 VAC 460 VAC 480 VAC
32(9.7536) 1/0 (55) 1/0 (55) 1/0 (55) 2 (35) 2 (35) 3 (30) 3 (30) 3 (30) 3 (30)
Table 8-3 Minimum Feeder Wire Size
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