u/Expensive_Zebra6362

We have a station for setting up 4G routers, it’s been in place for some time. There is a long aerial cable which is the white one shown, it runs from an aerial outside for maybe 10m to the bench where we set the routers up.

A guy had a router connected to the aerial and also a 12v PSU, again the PSU has been there for a long time, it’s literally just a teltonika modem that is plugged into both, tested and then put in a box ready to go to site.

Anyway, he has the router already plugged into both, waits a couple of mins for it to boot then picks it up. As he touches the router chassis he gets what he feels is 240v in his hand. The aerial connector on these units are exposed with a brass screw type connector.

As you can see from the pic, there are red and black cables running alongside the aerial cable that have just been installed. They run to 2no 415W solar panels that we are using for an r&d project. They aren’t yet plugged into a charge controller, but they are terminated at the end, the other end is connected to the panels. As you can see the are cable tied together for about 3m, all cables look in good condition.

Any idea how he got a shock?!