We all know that solar water heaters are installed on roofs or in high places to get enough sunlight. However, such installations also pose some problems, such as stormy days, and previous houses hardly had any. lightning rods installed, so how to protect solar water heaters from lightning? Additionally, heating power lines and sensor signal lines are integrated that pass through the room. It has many metal parts. In fact, the water heater is a sprinkler.
As for how to protect solar water heaters from lightning, we generally consider three aspects.
The first aspect concerns external lightning protection
The second aspect concerns internal lightning protection
The third aspect concerns lightning protection internal lightning protection Grounding considerationsearth
External lightning protection, which we commonly call lightning rod strips or lightning protection nets installed with lightning rods, is used as a countermeasure for external lightning protection. The picture below shows how to make a lightning rod.
The second aspect is induction lightning protection, which involves installing lightning arresters or surge protectors in the power distribution system. This is called internal lightning protection.
The third aspect is the most important aspect of lightning protection: the grounding system. For lightning protection installations and equipment to work, the grounding system is very important.
What should we do?
To put it simply, a lightning arrester is installed in parallel on the electrical line of the water heater, and a lightning rod is installedwent next to the solar water heater. The metal frame of the solar water heater must be well grounded. The earth resistance of the lightning rod and metal price is less than 10 ohms, and the earth resistance of the lightning arrester is less than 4 ohms. This completes a qualified lightning protection system.