ᐅ Installation of a satellite dish on the roof

Malz1902 schrieb:
Are you my electrician? Your list is correct

I don't think so

Domski schrieb:
Sounds realistic.
To summarize, what is needed altogether to make it work?

- Satellite dish
- 4-output LNB
- Mast
- Roof tile with waterproofing sleeve
- Rafter bracket
- If there is no ventilated roof space: entry through the insulation/waterproofing layer
- Multiswitch for 8 subscribers
- Power supply for multiswitch
- Connection with 10mm² Cu single-core cable for potential equalization
- Cabling of satellite cables to 6 rooms
- 6 simple flush-mounted satellite sockets
- System alignment

• On roofs insulated according to the Energy Saving Ordinance, masts are obsolete; the rafter bracket alone is sufficient for a satellite antenna.
• State of the art are receiver-powered multiswitches.
• Since DIN 57855-1 (VDE 0855-1):1984-05, grounding conductors must be at least 16 mm² Cu, 25 mm² aluminum, or 50 mm² steel/zinc coated; 10 mm² Cu is outdated.
• According to DIN EN 60728-11 (VDE 0855-1):2011-06, the system must be integrated into the protective equipotential bonding so that the bonding connection remains on all cables even when the multiswitch is removed, which requires earth blocks or earth clamps.
• According to DIN 18015, information and communication technology (ICT) cables must be installed in conduit.
• According to this standard, multiswitches should be installed in central communication distribution boxes.
• A chain is only as strong as its weakest link; the grounding conductor connection on the rafter bracket and the terminals of the main equipotential bonding rail must be certified according to test standard Class H = 100 kA, which few installers are aware of.
• Grounding conductors should be routed without hazardous proximity to other cables, typically requiring external routing.

Examples of code-compliant installations:

Grinning, you are everywhere, too.

Bau-Schmidt schrieb:
Grins du bist auch überall.

Pure coincidence that I, as an occasional visitor, replied somewhat promptly.

So, the connection cables will be available from every room in the attic, right?
I had a roof tile replaced with one designed for the satellite dish mount (which cost about 50 euros), then I ordered the appropriate mounting pole from the electrician (about 180 euros), a satellite dish with LNB (50 euros), and had it installed and aligned during several electrical jobs.
A bit of coaxial cable on top (generously estimating 50 euros).
So, materials total around 330 euros.
Plus some electrician labor time.
All in all, this is far from your price.

Edit: my price estimates are approximate... this was a while ago.

Meister keks schrieb:
So the connection cables will be available from every room in the attic, right?

If you decide to go for the cheaper option with a multiswitch in the attic instead of a central communications distribution unit in the basement, contrary to the specifications of DIN 18015, then naturally all the star cables from a multiswitch or switchable LNB must terminate—sorry—start there.

Meister keks schrieb:
... then I ordered the appropriate pole from the electrician (about 180 Euros)

By "pole" I understand a mast, which at that price would have to be gold-plated even with the mast base and mast clamp. On a new building with Energy Saving Ordinance-compliant roof, mega-outdated solutions and roof rafter holders are state of the art.

Meister keks schrieb:
... a satellite dish with LNB (50 Euros) and I had it installed and aligned during several electrical jobs.

I classify a satellite antenna with an LNB costing 50 € as electronic waste in terms of stability.

Meister keks schrieb:
A little coaxial cable too (generously estimated at 50 Euros).

Good quality solid copper cables cost around €0.90, cheap cables with aluminum shielding prone to breakage and intermodulation, and possibly with steel-cored inner conductors, are about half the price.

Meister keks schrieb:
So materials 330 Euros.
Plus a bit of electrician’s labor.

Still not realised despite the foil that according to IEC 60728-11 grounding and equipotential bonding are mandatory? Those don’t come for free.

I understand an offer differently than:
6 outlets, optionally for TV, phone, or network, installed ready to plug in in the room.

zizzi schrieb:
The building specification only says the following

Off-topic: I would recommend googling who is allowed to install the foundation earth electrode; there might be an unpleasant surprise there.