1
Lightning pro-
tection device
L
ig
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tn
in
g
d
o
wn
t
h
e li
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e
Photovoltaic panel
Inverter
Distribution
Cabinet
Lightning down the line
Equipment ground wire
1)
It is generally recommended to install lightning protection devices (such as lightning rods /
lightning protection belts and down conductors) to prevent lightning from hitting the PV array.
2)
Lightning protection devices and down-conductors and related equipment in photovoltaic
systems (including photovoltaic panels, inverters, cables, power distribution equipment) should
maintain a safe separation distance S.
Suggested value of S: According to the general 5 storey height (about 15m) building roof, S
takes 2.5m enough, the distance S have relationship with the building height.
A.
When the safety distance S is satisfied:
The position of the figure should be equipped with a lightning protection module. In general,
it is recommended to install Type II in position (l) and Type I in position ©.
B.
When the safety and safety distance S is not met:
In addition to position 3, Type I lightning protection module should be installed in Figure
3)
The lightning down conductor and the equipment ground wire eventually sink at a total
ground point, but the two cannot share the wire. That is, the equipment grounding wire should
be pulled separately, and the wire diameter requirement >6mm
2
when the safety interval dis-
tance S is satisfied.
4)
About the above lightning protection lightning receptor system related design reference
GB/T 21 71 4.3-201 5.
25
Power grid
Grounding bar
Total grounding point
Fig 6.17
Summary of Contents for MOD 1 0KTL3-X
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Page 60: ...Installations och bruksanvisning...
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Page 120: ...Installation Operation Manual...
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