MIL-HDBK-1004/5
Table 12
Determination of Acceptable Utilization Connections
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1. Medium-Voltage Feeder Cable Limitations
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Feeder Length
= 15,000 feet
Feeder Capacity = Four unit loads, each 100-ampere, 200Y/115 volt,
0.8 power factor
= 4 x 34.5 kVA = 138 kVA
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2. Required Service to Hangars (Table 10)
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Loads
Hangar
Aircraft
Connected(1)
Demand Factor(2)
Demand
1
24
324 kVA
0.31
100 kVA
2
24
324 kVA
0.31
100 kVA
3
12
152 kVA
0.50
76 kVA
4
18
243 kVA
0.40
97 kVA
5
4
94 kVA
0.77
72 kVA
6
5
351 kVA
0.71
249 kVA
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3. Acceptable Medium-Voltage Feeder to Utilization Connections
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Demand Load
Percent Feeder
Serves
Per Feeder
Capacity Used (4)
Feeder
1
Hangar 1
100 kVA
73
2
Hangar 2
100 kVA
73
3
Hangars 3 and 5
98 kVA (3)
71
4
Hangar 4
97 kVA
71
5,6,7,8 & 9
Hangar 6
76 kVA
51
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(1) From Table 10.
(2) From Table 2.
(3) Demand for 16 aircraft
(4) Percent of 138-kVA feeder capacity or four unit loads
34
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