tecker201011 Oct 2016 21:21Hi,
my question fits well with the thread "Installation of a Satellite System" https://www.hausbau-forum.de/posts/132884/
I would like to install the satellite system on the roof of our city villa myself. The routing of the coaxial cables throughout the entire house is included in the contract and will be brought up to the attic for me. There, I plan to install a 5/8 multiswitch and connect it accordingly with the LNB.
The biggest challenge for me is probably grounding / equipotential bonding. Completely omitting it is probably not advisable.
What would you recommend? Basically, should the grounding be done on the outside by routing it along the facade and connecting it to a suitable grounding rod driven into the ground (which I would probably leave to a professional)? Or is it sufficient to connect the satellite system to the equipotential bonding busbar in the utility room? How would you handle the equipotential bonding?
@Sebastian79 wrote in another post:
In this case, the cable will probably be routed indoors along the wall in appropriate channels milled specifically for this purpose, right? Routing it together with other cables would contradict the purpose of grounding. I would also have an electrician carry out the grounding later, but this should probably be implemented or at least prepared as much as possible during the construction phase.
Here is a picture of how the roof currently looks at our place:
Thanks in advance.
my question fits well with the thread "Installation of a Satellite System" https://www.hausbau-forum.de/posts/132884/
I would like to install the satellite system on the roof of our city villa myself. The routing of the coaxial cables throughout the entire house is included in the contract and will be brought up to the attic for me. There, I plan to install a 5/8 multiswitch and connect it accordingly with the LNB.
The biggest challenge for me is probably grounding / equipotential bonding. Completely omitting it is probably not advisable.
What would you recommend? Basically, should the grounding be done on the outside by routing it along the facade and connecting it to a suitable grounding rod driven into the ground (which I would probably leave to a professional)? Or is it sufficient to connect the satellite system to the equipotential bonding busbar in the utility room? How would you handle the equipotential bonding?
@Sebastian79 wrote in another post:
Sebastian79 schrieb:
Why do you need a professional for equipotential bonding? Just run a 16mm2 (AWG 5) cable to the equipotential bonding busbar and you're done...?
In this case, the cable will probably be routed indoors along the wall in appropriate channels milled specifically for this purpose, right? Routing it together with other cables would contradict the purpose of grounding. I would also have an electrician carry out the grounding later, but this should probably be implemented or at least prepared as much as possible during the construction phase.
Here is a picture of how the roof currently looks at our place:
Thanks in advance.
I'll add my late two cents.
Those questions have already been addressed there.
In the German standards committee DKE K/735, a decision was made in 2014 to phase out traditional lightning rods. Although this has not yet been incorporated into any valid version of the standards, I would never route antenna grounding conductors with dangerous internal proximity.
This facilitates lightning current leapfrog. In the VDE publication series #6 it states: This must be warned against.
This should also be considered for buildings with photovoltaic and solar thermal systems, which according to standards only require protection if a lightning protection system is installed. A direct strike usually affects all roof installations, which can reliably be protected only by separate air-termination rods. In the case of exposed or waterproof concrete basement structures, a mesh size of grounding electrodes with a maximum of 10 x 10 meters is required.
A good planner would have provided a dedicated connection clamp for the antenna grounding on the foundation ring or grounding mat while it was still easy and cost-effective. All grounding electrodes must be interconnected and connected to the main equipotential bonding (MEB) with lightning current capacity, see ABB information sheet #10 (currently unavailable due to website update) or DEHN lightning planner chapter 5.5.6 on mesh interconnection of grounding systems. A separate grounding rod, even in stainless steel design, would be a sign of incompetence.
A 16 mm² (0.025 in²) copper conductor withstands lightning currents up to 200 kA, provided suitable clamps are used. Connection components on the antenna mast and the MEB itself must be tested according to the applicable test standard for the used conductor type, class H = 100 kA.
Does this grounding system exceptionally comply with DIN 18014:2014-03 or was it also installed by the shell builders against the standards and without measurement and photo documentation?
tecker2010 schrieb:
My question actually fits well with the thread "Installation of a SAT system" https://www.hausbau-forum.de/posts/132884/
Those questions have already been addressed there.
tecker2010 schrieb:
What would you recommend? Basically, should the grounding be done externally on the facade and connected to a suitable grounding rod driven into the ground (I would probably leave that to a professional)? Or is it sufficient to connect the SAT system to the equipotential bonding bar in the utility room? How would you implement the equipotential bonding (EP) in this case?
In the German standards committee DKE K/735, a decision was made in 2014 to phase out traditional lightning rods. Although this has not yet been incorporated into any valid version of the standards, I would never route antenna grounding conductors with dangerous internal proximity.
tecker2010 schrieb:
In that case, the cable will probably run inside along the wall in specially milled channels, right? Installing it together with other cables would contradict the purpose of grounding.
This facilitates lightning current leapfrog. In the VDE publication series #6 it states: This must be warned against.
This should also be considered for buildings with photovoltaic and solar thermal systems, which according to standards only require protection if a lightning protection system is installed. A direct strike usually affects all roof installations, which can reliably be protected only by separate air-termination rods. In the case of exposed or waterproof concrete basement structures, a mesh size of grounding electrodes with a maximum of 10 x 10 meters is required.
tecker2010 schrieb:
I would also have an electrician handle the grounding later, but it should preferably be carried out or prepared as much as possible during the construction phase.
A good planner would have provided a dedicated connection clamp for the antenna grounding on the foundation ring or grounding mat while it was still easy and cost-effective. All grounding electrodes must be interconnected and connected to the main equipotential bonding (MEB) with lightning current capacity, see ABB information sheet #10 (currently unavailable due to website update) or DEHN lightning planner chapter 5.5.6 on mesh interconnection of grounding systems. A separate grounding rod, even in stainless steel design, would be a sign of incompetence.
A 16 mm² (0.025 in²) copper conductor withstands lightning currents up to 200 kA, provided suitable clamps are used. Connection components on the antenna mast and the MEB itself must be tested according to the applicable test standard for the used conductor type, class H = 100 kA.
Does this grounding system exceptionally comply with DIN 18014:2014-03 or was it also installed by the shell builders against the standards and without measurement and photo documentation?
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