Wireless Controller
14
Lightning Protection
Equipotential Bonding
Equipotential Bonding is the practice of intentionally electrically connecting all earthed
systems to the same grounding grid or connecting the grounding grids of all the
earthed systems together through the ground or overground metal so as to create
an earthed equipotential zone. When lightning occurs, the high voltage produced by
lightning current in all systems will meanwhile exist in their ground cables, and thus all
ground cables have the same electrical potential and basically eliminate the electric
strikes between the systems.
The figure below illustrates how to practice equipotential bonding in a network.
Figure 3-3 Equipotential Bonding
Grounding Terminal
Equipotential Bonding Cable
Grounding Bar
Ground Cable
When equipotential bonding, please note that the cable should be copper wrapped
Kelly with its area being 6mm
2
at least. The shorter cable the better, and use a
grounding bar to establish an equipotential bonding point.
Note:
The equipotential bonding cable and ground cable are not provided with our
product. If needed, please self purchase it.
Use Lightming Arrester
Power lightning arrester and signal lightning arrester are used for lighting protection.
Power lightning arrester is used for limiting the voltage surge due to a lightning. If an
outdoor AC power cord should be directly connected to the device, please use a power
lightning arrester.
Note:
Power lightning arrester is not provided with our product. If needed, please self
purchase it.
