ᐅ Planning Conduits for Satellite System and Photovoltaic System
Created on: 16 May 2017 21:10
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BenutzerPC
We are planning to install a satellite system and want to keep the option open for a photovoltaic system. Our general contractor (GC) has offered a price of 450€ per empty conduit, with two conduits proposed for installation in the utility shaft. For your information: Our house has a basement, two full floors, and one attic floor. The total building height is just under 13 m (43 feet). The following questions come to mind:
a) Is the offer a bit excessive for installing “just” one conduit in a shaft that is already planned?
b) Are two conduits really necessary? Could both cables not be routed through a single conduit?
c) Should I possibly reject the offer and negotiate directly with the electrician during construction, potentially at a lower cost? The satellite system is currently not included in the house contract and, according to the GC, will be arranged later between the homeowner and the electrician.
a) Is the offer a bit excessive for installing “just” one conduit in a shaft that is already planned?
b) Are two conduits really necessary? Could both cables not be routed through a single conduit?
c) Should I possibly reject the offer and negotiate directly with the electrician during construction, potentially at a lower cost? The satellite system is currently not included in the house contract and, according to the GC, will be arranged later between the homeowner and the electrician.
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BenutzerPC17 May 2017 13:21A somewhat naive question: Is the planning of the conduit pipes for the detailed construction plan with the general contractor now critical, or can I still spontaneously ask during the shell construction phase: Electrician, can you install one or two additional conduits here? After all, the installation details for a satellite system have not yet been clarified in the detailed plan. In short: What can I still arrange later, possibly directly with the tradespeople on site, and what do I need to include now in the detailed plan because it won’t be possible to add later? The costs mentioned so far seem really excessive, so I will check on that again.
Regarding planning: I don’t know your contract or the flexibility of the general contractor/tradesperson, but technically it is of course possible to install empty conduits later on—provided there is enough space in the duct.
We are currently building (the shell is finished), and I have learned that I will do the electrical installation myself. For some things (including empty conduits), I will decide spontaneously while laying the cables what additional elements to install where.
We are currently building (the shell is finished), and I have learned that I will do the electrical installation myself. For some things (including empty conduits), I will decide spontaneously while laying the cables what additional elements to install where.
AOLNCM schrieb:
Pay attention to the spacing.
The grounding cable must not be routed directly next to the other cables.
The longer the cable, the further away it should be from the others.
Ask an electrician.However, it’s not quite that simple. According to the standard, you need to run a rigid 16 mm² (0.026 in²) copper conductor from the antenna to the grounding system, preferably on the outside of the building. See page 12 of the following document (or section 11.3.2 of DIN EN 60728-11 / VDE 0855-1).
The deep earth electrode must be connected to the building’s grounding system.
In addition, the antenna mast must be connected to the grounding busbar via an equipotential bonding conductor, for which you could use the 16 mm² (0.026 in²) conductor.
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