Quantcast Table 1-7. Peak Currents from Direct Lightning Strikes

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MIL-HDBK-419A
Table 1-7. Peak Currents from Direct Lightning Strikes
No. of Flashes with
Percentage at or
No. at or
Peak Current in
Range of current,
above Level
above Level
Range
(amperes)
100
2,721
567
1,000 -
5,000
79.2
2,154
5,001  - 1 0 , 0 0 0
611
56.7
1,543
640
10,001  - 2 0 , 0 0 0
33.2
903
296
20,001  - 3 0 , 0 0 0
22.3
227
607
30,001 - 40,000
14.0
380
40,001  - 5 0 , 0 0 0
140
8.82
240
50,001  - 6 0 , 0 0 0
80
5.88
61
160
60,001  - 7 0 , 0 0 0
3.64
22
99
70,001  - 8 0 , 0 0 0
2.83
21
77
80,001 - 90,000
2.06
11
56
90,001 - 100,000
1.65
45
11
100,001 - 110,000
1.25
9
34
110,001 - 120,000
0.918
25
9
120,001  - 130,000
0.588
7
16
130,001 - 140,000
0.331
2
9
140,001 - 150,000
0.257
3
7
150,001  - 160,000
0.137
4
0
160,001  - 170,000
0.147
4
170,001  - 180,000
1
0.110
3
0
180,001  - 190,000
0.110
3
1
190,001 - 200,000
0.073
2
0
200,001 - 210,000
0.073
2
1
212,000
0.037
1
1
218,000
2,721
Table 1-8. Transient Surge Amplitudes
Percentage of Transients
Transient Surge
at Listed Amplitude
Amplitude (Amperes)
21%
to
2,500
500
23%
to
5,000
2,501
24%
5,001
to  10,000
19%
10,001
to  20,000
8%
20,001
to  30,000
3%
30,001
to  40,000
1%
40,001
to  50,000
0.9%
50,001
to  75,000
0.1%
75,001
to 100,000
1-55





 


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