Peanuts74
2016-12-20 14:17:11
- #1
You are right and I am wrong.
It is good that several sockets were installed; most multi-socket outlets are only approved up to 3500W.
I was aware that the resistance depends, among other things, on the length of the cable. Thank you.
The limit of what is allowed is not determined by the number of sockets. The size of the living area is decisive for the number of circuits for lighting and sockets in a residential building. Up to 50 sqm, two circuits are sufficient.
No idea why your staircase lighting was rerouted and why 16A and 1.5 sqmm were out of the question; most staircase lights are LEDs with about 1W power. I wouldn’t recommend more than one LED per meter anyway; it’s way too bright at night in the stairwell.
Of course, you are right, one should not skimp on electrical work, insulation, or other building materials. Everyone should keep an eye on their budget; whether they oversize one or several trades is up to them. If there are special reasons for it, why not.
Separate lines have been installed for my washing machine, dryer, and hairdryer.
Uh, objection. My electrician told me that you don’t secure for the few watts you connect to consumers, but for the cable!
That means, for example, if you have a short circuit because a cable was pierced, depending on the contact resistance between the two conductors, 6, 16, or 20A will flow until the fuse blows. And with a long thin cable with COMPARATIVELY high resistance, quite a bit of voltage will drop and accordingly also power.
That was my initial mistake, I thought I was only connecting LEDs, i.e., max. 50 watts, e.g., in the bathroom, so the cable is sufficient and I can protect it with 16A as well.
I installed the cable in the stairwell myself; it was the easiest to chase and probably actually the most effective. We have a double-spiral staircase, and on one side it goes up and on the other it goes down...
The lighting, of course, only has 1.5mm² and 6A circuit breakers, which is completely sufficient for LEDs...