ᐅ Electrical outlets: Always prepare in groups of five? What is the best approach?
Created on: 31 Jul 2019 12:52
C
Christian K.
Hello everyone,
We are doing the electrical installation ourselves, and I had planned to drill boxes for five outlets each, but only use, for example, two of them. The rest would be covered and plastered over. The advantage would be that if I later need more outlets, I can remove the plaster and expand the outlet.
Now I’ve heard that making this flush with the wall is problematic. I would have to use spacer rings or similar. Also, the effort to simply drill new boxes later wouldn’t be any greater. In other words, the effort is higher if I drill more boxes in advance.
What do you think?
One more point that came up later: We are running NYM 7x2.5mm² cables per room for the outlets. The idea is to be able to measure and switch five outlets, and the rest are constant power. The problem is that connecting a 7x2.5mm² cable inside a device box with an outlet is not possible due to limited space. My idea is therefore that if, for example, I have a double outlet, I will install at least one additional empty box nearby to make the cable connections.
So more specifically, my questions are:
a) Is it worth pre-drilling?
b) What should I keep in mind during installation so that it is not visible later?
c) Do you have a better solution for cable connections in an empty box?
Cheers
We are doing the electrical installation ourselves, and I had planned to drill boxes for five outlets each, but only use, for example, two of them. The rest would be covered and plastered over. The advantage would be that if I later need more outlets, I can remove the plaster and expand the outlet.
Now I’ve heard that making this flush with the wall is problematic. I would have to use spacer rings or similar. Also, the effort to simply drill new boxes later wouldn’t be any greater. In other words, the effort is higher if I drill more boxes in advance.
What do you think?
One more point that came up later: We are running NYM 7x2.5mm² cables per room for the outlets. The idea is to be able to measure and switch five outlets, and the rest are constant power. The problem is that connecting a 7x2.5mm² cable inside a device box with an outlet is not possible due to limited space. My idea is therefore that if, for example, I have a double outlet, I will install at least one additional empty box nearby to make the cable connections.
So more specifically, my questions are:
a) Is it worth pre-drilling?
b) What should I keep in mind during installation so that it is not visible later?
c) Do you have a better solution for cable connections in an empty box?
Cheers
Knöpfchen schrieb:
Supplying the sockets with three-phase current and then distributing it is absolutely against VDE regulations.
That is TABOO! Totally not allowed. Are you sure about that? What exactly speaks against it?
Of course, you shouldn’t overload the neutral conductor, but I hardly think that three heating radiators are connected to every socket!
VDE 0100 Part 520:
The use of a shared neutral conductor for multiple main circuits is not permitted. However, single-phase AC circuits, each consisting of one phase conductor and the neutral conductor, may be derived from a three-phase circuit with a neutral conductor, provided that the association of the circuits remains clear through their arrangement. This three-phase circuit must be capable of being disconnected by a switch that simultaneously interrupts all live conductors.
The use of a shared neutral conductor for multiple main circuits is not permitted. However, single-phase AC circuits, each consisting of one phase conductor and the neutral conductor, may be derived from a three-phase circuit with a neutral conductor, provided that the association of the circuits remains clear through their arrangement. This three-phase circuit must be capable of being disconnected by a switch that simultaneously interrupts all live conductors.
M
Mottenhausen2 Aug 2019 14:21I don’t understand the circumstances that would require, for example, a five-socket power strip at the location of a double outlet. Sure, at Christmas, where the tree is placed. But for such highly temporary situations, a simple $10 power strip can be used and then put away afterward.
Generally, I can’t see when more than a double outlet would ever be needed.
Positions for entertainment systems, etc., are already determined by appropriate multimedia outlets, which can’t realistically be provided in unlimited locations in advance without investing a fortune in wiring.
If there really is concern about being under-equipped in the future, I would simply add a few extra double outlets in each room, and that should be sufficient.
Generally, I can’t see when more than a double outlet would ever be needed.
Positions for entertainment systems, etc., are already determined by appropriate multimedia outlets, which can’t realistically be provided in unlimited locations in advance without investing a fortune in wiring.
If there really is concern about being under-equipped in the future, I would simply add a few extra double outlets in each room, and that should be sufficient.
Mottenhausen schrieb:
I don’t understand what circumstances would justify needing, for example, a 5-outlet power strip later on in the place of a double socket.I do—but I think it’s naive to plan for a need ten years from now using today’s equipment: by then, there will certainly be a bus system following the KMHNN standard (knowntodaystillnot), and the kids in daycare now (then teenagers) will find it hilarious that Dad thought it was forward-looking to install two extra 220V alternating current power outlets in reserve alongside this outdated system with separate power and data channels.https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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