Potential equalization for satellite must be laid separately

I'll chime in here. Since I'm installing the satellite system myself, how exactly should I proceed? The electrician will run the connections and cables up to the attic. I wanted to mount the satellite system on the rafter bracket, bring in the four cables from the LNB, and attach them to a grounding block in the attic. From there, the cables would later be extended by the electrician. I think that's correct so far. But now the potential equalization. Lay a 16mm copper wire from the satellite into the utility room individually, and from the grounding block a copper cable to the satellite dish??? Is that correct? How exactly do I attach the copper to the mast? Clamp?

What do you say about that? Thanks for your help,

The electrician lays the connections and cables all the way into the attic. I wanted to install a satellite system on the rafter bracket, with four cables from the LNB coming in and attaching them to a grounding block in the attic. From there, the electrician would later run the cables further.

No one points out more often than I do that, according to NAV § 13, installations of grounding and equipotential bonding are reserved for licensed electrical specialists.

Given the fact that only a few antennas installed by licensed electrical specialists are even 100% standards-compliant, this also takes some overcoming.

But now the equipotential bonding. Run 16mm copper from the satellite into the utility room individually, and from the grounding block a copper cable to the satellite dish?? Is that correct?

Yes, that would be a standards-compliant GROUNDING, provided, exceptionally, that the connections on the roof rafter bracket and the grounding system are certified to withstand 100 kA lightning current. 16 mm² copper wire can withstand monster lightning strikes of 200 kA, subject to clamps designed for that purpose.

How exactly do I attach the copper stuff to the mast? Clamp?

Actually, you do not do that yourself, because you are not a licensed electrical specialist, see above.

[*]Grounding conductors must be clamped to masts or the vertical pipe of roof rafter brackets using lightning-current-resistant class H certified grounding clamps. So far, there is no roof rafter bracket with a certified clamp for grounding conductors.
[*]If the grounding conductor is connected to a main earthing terminal (HES), it must be one designed for lightning equipotential bonding and not, as is often the case, Elis’s favorite busbar for power equipotential bonding according to VDE 0100 standard series.
[*]The equipotential bonding of cable shields is connected via grounding block or grounding angle and with 4 mm² copper that is not lightning-current resistant to the grounded point; likewise, housings of mains-powered components, especially multiswitches (even if located in the basement).
[*]For that, the usual banding grounding clamps with an M6 screw and clamp plate suffice; a properly installed cable lug on an M5 screw also works.

Pictures say more than words. Unfortunately, the system currently shows me that I do not have the rights to upload them.

Too bad, thanks anyway.

Ps sometimes it is better if a layman does it after a lot of reading and asking about standards or DIN, than a so-called electrical specialist who does it the way he always has. I asked 2 electricians, both said, put the Sat up and done [emoji45]

I asked 2 electricians, both said, just put up the Sat and done [emoji45]

You are not the first layperson who is more knowledgeable about standards regarding grounding and equipotential bonding than some electricians after contacting the forum. If the announced revision of IEC 60728-11 goes through in my favor, it will not change anything for the two standard-free electrical "professionals", because they won't notice the changes.

I think so too. But that exists in many areas, I just mention [Sauberkeitsschicht], I have been looking at at least 30 floor slabs for half a year, all had bubble wrap.

Since I happened to come across the old topic by chance, here is a supplementary example image from the currently valid DIN EN IEC 60728-11 (VDE 0855-1):2023-10:



Grounding conductors made of 16 mm² Cu, 25 mm² aluminum, or 50 mm² steel per se also withstand rare lightning strikes exceeding 200 kA. However, every chain is only as strong as its weakest link, which is why antenna grounding can only fulfill their intended lightning protection function if the connectors for the respective grounding conductors used are also certified according to the highest test class H with 100 kA.

The requirement that accessible grounding conductors must be installed in a PVC empty conduit with a wall thickness of 3 mm has been removed.