Lightning protection at the house, but how?

Hello everyone, I currently have a small problem. My house has four gutters. Two are connected and the other two are just covers. The base plate of my house is equipped with a grounding rod. These protruded from the ground at each corner after the house was assembled. Now, out of ignorance, I cut off three and only have one left that can be connected to the gutter. Is that enough? Is one connection sufficient as lightning protection? Normally, two downspouts are installed on a house. Are always two connected? Best regards

Electricity seeks the easiest path if the "detour" via the gutter on the opposite side is now "more strenuous" than straight through the house... then you're out of luck, and who knows if a moody lightning strike might not pay a visit sometimes

but there are screw connections with which you can connect two steel band cables together speak, just reattach the cut cables, that's what they were for

The equipotential bonding in the floor slab has nothing to do with lightning protection...

He cut the connections to the gutters in three places, but I think he should restore them so that drainage is possible all around again.

No, he didn't... I read from the description that he cut off the connection tabs from the ring earth conductor. However, these have nothing to do with the external lightning protection in the broadest sense.

Everything in the house with a protective contact is connected to the ring earth conductor + at most the antenna system and not the external gutters.

These are connected to the external protection system and only then connected to the internal one.

And even if it now sounds as if everything is connected together anyway... there are reasons why it is supposed to be done this way and not otherwise...



But to get back to the initial question. Most likely it doesn't matter that you cut off three tabs. As long as you still have one in the HAR, everything is fine.

You don't have to connect the gutters to anything if you don't have a complete external lightning protection system.

The effect of grounded gutters is likely minimal. However, I would say that they definitely belong directly to the [Fundamenterder].

If you now absolutely want to ground your downpipes but can no longer reach the brackets, you could instead drive a grounding rod / earth rod into the ground each. Pay attention to the material pairing due to galvanic corrosion.