Maintenance
4-19
1502-UM051E-EN-P – June 2013
Table 4.A – Dimension “A” Settings in Inches (millimeters in brackets)
EXISTING
NEW ALTITUDE RANGE
ALTITUDE
Increase or Decrease Dimension “A” by:
RANGE
0-1000 m
1000-2000 m
2000-3000 m
3000-4000 m
4000-5000 m
0-1000 m
N/A
+0.073 (1.85)
+0.140 (3.56)
+0.194 (4.93)
+0.246 (6.25)
1000-2000 m
-0.073 (-1.85)
N/A
+0.067 (1.70)
+0.121 (3.07)
+0.173 (4.39)
2000-3000 m
-0.140 (-3.56)
-0.067 (-1.70) N/A +0.054
(1.37) +0.106
(2.69)
3000-4000 m
-0.194 (-4.93)
-0.121 (-3.07) -0.054
(-1.37)
N/A +0.052
(1.32)
4000-5000 m
-0.246 (-6.25)
-0.173 (-4.39)
-0.106 (-2.69)
-0.052 (-1.32)
N/A
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for which it is set up. If functional tests are required, they
must be performed at the proper altitude or in a pressure
chamber which simulates the proper altitude.
A T T E N T I O N
Table 4.B – Contactor Deratings
Altitude Range
Continuous
Current Rating
B.I.L. Withstand
Rating
0-1000 m
800 A
60 kV
1000-2000 m
780 A
54 kV
2000-3000 m
760 A
48 kV
3000-4000 m
740 A
42 kV
4000-5000 m
720 A
36 kV
