ᐅ Electrical installation in the precast ceiling instead of on the floor
Created on: 17 Jul 2020 10:36
A
annab377Hello everyone,
After my initial consultation with the electrician yesterday, he suggested that it would be better to install the electrical wiring through the precast ceiling panels (meaning laying the conduit pipes on the panels before the concrete is poured, and drilling the holes from underneath the ceiling) rather than installing it after the concrete is poured on the ceiling / floor slab / screed.
Hmm, I had actually assumed he would do it later under the floor. Since I’m a bit unsure now, I wanted to ask about the pros and cons of installing the electrical wiring in the ceiling.
A clear advantage is that the insulation/soundproofing layer doesn’t have to be cut around the electrical conduits, because the floor is flat and there are no pipes inside. I planned to install the insulation on the ceiling myself, so I had already accepted the idea of cutting it out to fit the pipes. Now I’m thinking that installation in the ceiling might be more expensive because many holes need to be drilled, rather than running everything from the riser shaft on the floor after finishing the ceiling.
What do you think, or what have you chosen and why?
I’d love to hear your opinions.
Best regards
PS: I’ve heard here that if installing in the precast ceiling panels, it’s best to pull the cables through the conduit pipes immediately, instead of doing it later. The electrician said: “There is a risk that the cables could be damaged during backfilling. He prefers to pull the cables later and can assess on a case-by-case basis, ‘Okay, the conduit is intact, I need to use a different route.’ That’s better than discovering a damaged cable during commissioning.”
After my initial consultation with the electrician yesterday, he suggested that it would be better to install the electrical wiring through the precast ceiling panels (meaning laying the conduit pipes on the panels before the concrete is poured, and drilling the holes from underneath the ceiling) rather than installing it after the concrete is poured on the ceiling / floor slab / screed.
Hmm, I had actually assumed he would do it later under the floor. Since I’m a bit unsure now, I wanted to ask about the pros and cons of installing the electrical wiring in the ceiling.
A clear advantage is that the insulation/soundproofing layer doesn’t have to be cut around the electrical conduits, because the floor is flat and there are no pipes inside. I planned to install the insulation on the ceiling myself, so I had already accepted the idea of cutting it out to fit the pipes. Now I’m thinking that installation in the ceiling might be more expensive because many holes need to be drilled, rather than running everything from the riser shaft on the floor after finishing the ceiling.
What do you think, or what have you chosen and why?
I’d love to hear your opinions.
Best regards
PS: I’ve heard here that if installing in the precast ceiling panels, it’s best to pull the cables through the conduit pipes immediately, instead of doing it later. The electrician said: “There is a risk that the cables could be damaged during backfilling. He prefers to pull the cables later and can assess on a case-by-case basis, ‘Okay, the conduit is intact, I need to use a different route.’ That’s better than discovering a damaged cable during commissioning.”
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