subject: How to carry out house electrical system renovations [print this page] How to carry out house electrical system renovations
Ordinarily, we certainly not have enough money to buy a new home. Secondary house marketplace is becoming increasingly popular. The first thing you do after pay money for the new house - is planning if for repair. However you have to fix not only the walls, floor and ceiling, and most importantly electric wiring.
The reality is in the last century, when home were build up, usual power use was 1-2 kW, and now it can simply reach up to 10 kW. Virtually everyone has a washing machine, microwave, oven, iron, hair dryer, vacuum cleaner, toaster, grill etc. Nearly everyone of these devices can effortlessly burn down 1-2 kW, and yet they can be plugged in at the same period! The present meter is designed for current no less than 50 A.
But where to start on repairing of the electric wiring? To do this, there are specific laws. They will help you save time, cash and health.
Rule One
Start off with the project. Decide which devices will be in each room. Where there will be light, where plugs and switches. At what height they should be set. Before, it was normal to set the socket at a height of 80-90 cm, and the switches 150-160 cm from the floor.
Right now it's a different fashion: the socket at a height of 30-40 cm and 80-90 cm switches exception of sockets in the kitchen, where they are position at 20 cm from the tabletop. Do not skimp on outlet, it is better to put them at a distance of no more than 3 m away from each other.
Second Rule
Swap the cabling has to be done immediately and entirely. First, for the reason that the formerly used aluminum wire was short-lived and had a lot of very serious fault. Secondly, you cannot hook up aluminum wire and copper. Third, the replacement of the wiring work related with braking walls. Better to do it in an unfurnished apartment, because will be a lot of dirt and discomfort.
Rule Three
Before swapping the wiring determine consumption. Fold the electrical power that will be fed from one line (one machine). It is assumed that one piece of equipment should be joined to no more than 5 outlets. Total power loads of these outlets should be no more than 5 kW. Conductor cross-section for sockets 2.5 square. Appliance placed on a current not exceeding 25 A. The cross section of wire for illumination at least 1.5 square. Power lights devices not more than 3 kW. Machine placed on a current not exceeding 16 A.
Rule Four
Do not skimp on materials. Select the outlet boxes and switches medium price scope. Evaluation criteria should be quality of contact connections (preferably chrome or nickel plated contacts), thermo stable basis (preferably ceramic).
For wet areas it is required to use an UST or differential automatic. These devices defend people from electric stun and if they touch a bare wire and pieces of equipment under current.
Rule Five
At the joint of the wiring are metal case boxes (distribution boxes). They should be in accessible areas, repair work should not close easy access to boxes. Electrical control panel is better to put inside the apartment, then the number of machines and the RCD, you can select yourself, and simply increase their quantity.
Rule Six
Need to competently carry out the connection of electricity cables. They, of course, speed up installation, but if you care for 100% reliability of connections, it is best to use the twist with subsequent soldering or welding. The fact that the pads manage a point contact and the site could eventually warm up. Twisting and soldering give the contact a patch, an area of several square centimeters!
Rule Seven
Every time think about the forthcoming. Leave the reserve for fusers, socket boxes. All deteriorate over time and need to do the work so that repairs or add-on to the posting were as effortless as possible, so that later there was excruciatingly painful for your time and money.
Rule eighth (most significantly!)
When you work you should all the time observe the safety rules and clearly understand what is and what you are doing! If you do not have electrical engineering education, then do not try to begin to modify the electric wiring in the apartment on your own. Be sure to employ a professional!
