ᐅ Question About Electrical Installation (Scope of Work)

Created on: 19 Nov 2013 13:12
M
Masipulami
Hello everyone,

After following the discussions here for some time, I am now posting my first question myself.

In our construction specification for electrical installation, the following items are listed:

Hallway/Entrance:
1 push-button switch controlling one lighting point from three locations
1 single socket outlet
1 off-switch for one external lighting point
1 doorbell system with door button and two-tone chime

Staircase:
1 push-button switch controlling one lighting point from four locations
1 single socket outlet

Living/Dining Room:
1 push-button switch controlling one lighting point from three locations
1 two-way switch controlling one lighting point
1 off-switch for one external lighting point
1 indicator switch controlling one external socket outlet
1 triple socket outlet
1 double socket outlet
4 single socket outlets
2 flush-mounted empty boxes with wiring for telephone or antenna without connection outlets

Kitchen:
1 two-way switch controlling one lighting point
3 double socket outlets
2 single socket outlets
1 cooker connection outlet
1 dedicated circuit for dishwasher

Toilet:
1 indicator switch controlling one lighting point
1 single socket outlet
1 off-switch for mirror cabinet lighting point

Storage Room:
1 off-switch for one lighting point
1 single socket outlet

Utility Room/Laundry/Technical Room:
1 off-switch for one lighting point
3 double socket outlets
2 single socket outlets

Bathroom:
1 indicator switch controlling one lighting point
2 single socket outlets
1 off-switch for mirror cabinet lighting point

Each Children’s Room:
1 off-switch for one lighting point
1 double socket outlet
2 single socket outlets
2 flush-mounted empty boxes with wiring for telephone or antenna without connection outlets
1 battery-powered smoke detector

Master Bedroom:
1 two-way switch controlling one lighting point
3 double socket outlets
1 single socket outlet
2 flush-mounted empty boxes with wiring for telephone or antenna without connection outlets
1 battery-powered smoke detector

Dressing Room:
1 off-switch for one lighting point
1 single socket outlet

Office:
1 off-switch for one lighting point
2 single socket outlets
2 double socket outlets

Storage Room:
1 off-switch for one lighting point
1 single socket outlet

Other:
1 heating connection without outdoor sensor, thermostat
1 equipotential bonding
2 additional local equipotential bondings for bathroom
1 dedicated circuit for washing machine
1 dedicated circuit for dryer
1 400 V (400 V) socket outlet installed beneath the meter cabinet
1 wiring for underfloor heating
1 underground cable for garage
1 off-switch for one lighting point in the attic
1 cable pre-installation for attic (for future attic conversion)

Could someone possibly share their experience on where and how we should upgrade these?

Also, what exactly does "1 push-button switch controlling one lighting point from three locations" mean? What is specifically meant by "from three locations to one lighting point"?

Thank you very much in advance and

best regards,
Masipulami
D
DerBjoern
19 Nov 2013 15:11
Elektro1 schrieb:
Sorry,
this is something that is not correct.
1. You exceed the number of sockets per circuit (about 10 pieces)

No, I don’t do that.
2. You extend the cable length, which can lead to the fuse not tripping or not tripping in time

I’m not sure about that. But if that were the case, extension cords and cable reels would also be critical. And those even come with TÜV and VDE certification.
3. Most multi-socket outlets are not designed for the corresponding loads.

That’s true, but mine handle my low loads just fine.
4. Quote: "According to DIN, multi-socket outlets must not replace deficient electrical installations" --> Kaffeeruler
which is also correct.
As an electrician master, I can only bang my head against the wall at this statement.

Don’t hurt yourself!
aytex19 Nov 2013 15:18
But honestly, when building a new house, I would definitely invest a bit more in trades that can’t be expanded later on. I’m really fed up with power strips, especially the ones behind the TV stand. They collect dust like nothing else, and when building new, you want to take a step forward in terms of comfort and safety. I have to agree with Elektro1 that most power strips are cheap imports and raise safety concerns.

And: this is not about just filling every space. You need to approach it thoughtfully and intelligently. I think the key point is that many homeowners only consider this topic too late and then make rushed, unconsidered decisions. The result: either too many unnecessary outlets are installed, costing a lot of money without adding real value, or there aren’t enough outlets everywhere, and then you regret not having put more thought into it.

The motto here, in my opinion, should be as many as necessary and as few as possible.
Masipulami22 Nov 2013 18:05
Thanks again for the detailed feedback.

I have now also received the prices for additional outlets, etc.:

1 single socket outlet €25
1 double socket outlet €38
1 triple socket outlet €53
1 fixture point (wall or ceiling) €35
all prices include VAT.

That seems fair to me. We now need to take some time to sit down and plan carefully.
Y
ypg
22 Nov 2013 21:00
Masipulami, I found a great user guide online for beginners on how to approach the planning process...
If you are interested, please send me a private message with your email address. I will send you the document.
Masipulami22 Nov 2013 21:16
Gladly. I will gladly get back to that. A private message will be sent shortly.

Thanks in advance!