Key Characteristics:
|
Type |
ODOB3.1 |
ODOB3.3 |
ODOB4.3 |
ODOB5.3 |
ODOB6.3 |
|
Time ahead to discharge △T |
14μs |
25μs |
34μs |
43μs |
52μs |
|
Max. discharge current |
200KA | ||||
|
Capability against wind speed |
≥40m/s | ||||
|
Steepness of lightning current |
≤ 10kA | ||||
|
Grounding Resistance |
≤10Ω | ||||
|
Length |
500mm | ||||
|
Standard |
France NEC17-102, GB50057-94 | ||||
|
Protection Radius |
Following table for reference | ||||
Protection Radius:
|
Type |
H = Effective height of lightning rod (m) | ||||
|
5 |
6 |
7 |
8 |
10 | |
|
First-type Lightning Protection Building | |||||
|
ODOB3.1 |
22m |
22m |
23m |
23m |
25m |
|
ODOB3.3 |
42m |
42m |
43m |
43m |
43m |
|
ODOB4.3 |
51m |
51m |
52m |
52m |
53m |
|
ODOB5.3 |
61m |
61m |
61m |
61m |
62m |
|
ODOB6.3 |
70m |
70m |
70m |
70m |
71m |
|
Second-type Lightning Protection Building | |||||
|
ODOB3.1 |
44m |
44m |
46m |
47m |
48m |
|
ODOB3.3 |
57m |
58m |
59m |
60m |
63m |
|
ODOB4.3 |
68m |
69m |
69m |
70m |
73m |
|
ODOB5.3 |
78m |
79m |
79m |
80m |
82m |
|
ODOB6.3 |
88m |
89m |
89m |
90m |
92m |
|
Third-type Lightning Protection Building | |||||
|
ODOB3.1 |
50m |
50m |
52m |
52m |
55m |
|
ODOB3.3 |
64m |
67m |
68m |
72m |
75m |
|
ODOB4.3 |
76m |
78m |
79m |
82m |
108 |
|
ODOB5.3 |
87m |
88m |
90m |
92m |
94m |
|
ODOB6.3 |
97m |
99m |
100m |
102m |
104m |
Notes:
① H-Effective height of discharge-in-advance lightning rod, it is the distance from height of the lightning rod to protected surface.
② D-Electricity shock distance (radius of the ball). Per different grades and values of lightning protection in GB50057-94 Buildings Lightning Protection Design Regulation, the ball radius of first, second, and third classes building are respectively 30cm, 45cm, and 60cm.
③ The best installation height of discharge-in-advance lightning rod is 5M.
④ The reference of installation is 99D501-1 Building Lightning Devices Installation.