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
N
nordanney
19 Nov 2013 13:57
Masipulami schrieb:

140 power outlets?! That’s intense. I don’t think we really need that many.

I don’t think it’s that extreme. We hardly have any single outlets (extra cost is minimal since the wiring is installed anyway), and when I look at how many power strips we are currently using. Example: living room/TV area: TV, receiver, CD player, amplifier with two outlets, Wii for the kids, Blu-ray player, accessories to make the amplifier Wi-Fi capable ==> 8 outlets!
Two illuminated display cabinets ==> 2 outlets
Charging cables for laptop + phone ==> 2 outlets
Two lamps ==> 2 outlets
Vacuum cleaner plug ==> at least 1 outlet
Without any free outlet left, that’s already 15 devices needing power. My wife would also like an outlet at every window for Christmas decorations, etc.
So just in the living room, I’m already at 20 outlets! The kitchen is similar: connections for refrigerator, freezer, microwave, extractor hood, cabinet lighting, under-cabinet lighting, various outlets on the countertop.
Just walk through your current apartment/house and see which devices are plugged in, what might be added, and so on.
If you don’t plan it now, you’ll regret it later (bathroom: “An outlet here would have been nice. Now I have to dry my hair, the electric toothbrush needs charging, my husband is using the electric razor, and suddenly it’s tight on outlets).
E
Elektro1
19 Nov 2013 13:58
See the link from me.....
N
nordanney
19 Nov 2013 14:12
Our electrician charges a net price of 61.20 euros for the double socket, including chasing and cable pulling. These are Gira Event frames with System 55 sockets (with enhanced touch protection = childproof).
However, we do not have a builder; we hired the electrician directly.
D
DerBjoern
19 Nov 2013 14:44
When it comes to electrical outlets, you can definitely overdo it. You should carefully consider where you want them. Completely covering every wall doesn’t really help. For example, in the home office, where the desk will be placed, I only installed a triple outlet, knowing that I would use power strips anyway. Having at least 14 outlets there would have been a bit excessive... ^^
N
nordanney
19 Nov 2013 15:00
DerBjoern schrieb:
When it comes to power outlets, you can definitely overdo it. You should carefully consider where you want them. Fully covering the walls with outlets doesn't really help. In the home office, where the desk is supposed to go, for example, I only installed a set of three sockets, knowing I will use power strips anyway. Needing at least 14 sockets there would have been a bit excessive... ^^

I would like to see that fully loaded desk – 14 devices – impressive!

We have carefully planned the locations for our outlets, but I probably don’t want to see any more power strips in our house (although this will probably not work out). Luckily, there are only a few critical spots (desk area, TV corner).
E
Elektro1
19 Nov 2013 15:03
DerBjoern schrieb:
When it comes to power outlets, you can also overdo it. You should carefully consider where you want them. Covering every wall with outlets doesn’t really help. For example, in the study, where the desk is supposed to go, I only installed a triple outlet. Knowing that I will be using power strips there anyway. Because having at least 14 outlets there would have been a bit too much... ^^

Sorry,
this is something that is not acceptable.
1. You exceed the number of outlets per circuit (about 10 outlets)
2. You extend the wiring length, which may cause the breaker not to trip or to trip too late
3. Most power strips are not designed for the loads involved
4. Quote: "Power strips must not be used to compensate for poor electrical installations according to DIN standards" — Kaffeeruler
and he is right.
As a certified electrician, I can only bang my head against the wall at this statement.