I have a system with 10 cameras and 3 L3 managed PoE switches (cheap Tenda TEG5310P). One switch is installed in my house, it has 4 cameras connected via cables that go out of the building and are run on the edges of the roof overhang. 3 have these tiny PoE 48V to 12V adapters and one has builtin PoE. Another switch is in a detached garage(the cable connecting them is undergound). That switch has 4 cameras too. 2 on the building itself and two connected with 60m of underground cable on a 6m tall steel pole. The third switch, also attached with underground wiring, is in another building. The third switch has only 2 cameras, both attached via about 60m of underground cable and located on a 6m tall steel pole.
We've been having lots of lightning storms around here, although none of them was causing lightning within half a km. Also most of this ligtning activity was happening during the day. One night at 1:36am one of my switches PoE chip died (it still supplies power, but one can't get the temperature, also it shows no power statictics, it makes a hissing noise and the whole switch gets very hot very quick) - this is the switch at home. Also 3 cameras connected to it had their PoE adapters die. Then on switch no 2, one camera on a steel pole had its PoE adapter die (the other on the same pole - with builtuin PoE is fine). And in switch no 3 same thing. One of the cameras on the pole has a dead PoE adapter. It seems like a calssic surge, but it happened while there was no lightning storm nearby so I'm guessing, perhaps it came via the power line? No other devices were damaged at home. I have whole home surge protectors in my electric panel.
So the question is, what do I need to add in terms of surge protection to prevent this happening in future. Add ethernet surge protection? To all cables? Or just some? Get better quality PoE adapters? What do you do to prevent lightning and power surges caused by lightning destroying parts of tyour system?
We've been having lots of lightning storms around here, although none of them was causing lightning within half a km. Also most of this ligtning activity was happening during the day. One night at 1:36am one of my switches PoE chip died (it still supplies power, but one can't get the temperature, also it shows no power statictics, it makes a hissing noise and the whole switch gets very hot very quick) - this is the switch at home. Also 3 cameras connected to it had their PoE adapters die. Then on switch no 2, one camera on a steel pole had its PoE adapter die (the other on the same pole - with builtuin PoE is fine). And in switch no 3 same thing. One of the cameras on the pole has a dead PoE adapter. It seems like a calssic surge, but it happened while there was no lightning storm nearby so I'm guessing, perhaps it came via the power line? No other devices were damaged at home. I have whole home surge protectors in my electric panel.
So the question is, what do I need to add in terms of surge protection to prevent this happening in future. Add ethernet surge protection? To all cables? Or just some? Get better quality PoE adapters? What do you do to prevent lightning and power surges caused by lightning destroying parts of tyour system?