Archive for the ‘Electrical’ Category
There are basically two concerns to address when deciding as to what type of electrical wire to use at home – one is the size of electrical wire and the other is the safety issue related to wiring conditions. Lets know in this article about how to know what size and what type of electric wire to use for home!
Use Right Size of Electrical Wire!
As far as size of wire is concerned, it is determined by the wire guage system, apart from which you must also pay attention towards wire capacity, and what the wire will feed. When the wire guage is smaller, its amapcity increases. Ampacity can be explained as the safe amount of current that a wire can handle without getting hot enough to cause a fire. Some of the popular appliances and needs found in most of the houses, their rated ampacity (within brackets) and required wire guage have been mentioned below for your guidance.
* Low-voltage lighting and lamp cords (10 Amps)- 18 guage
* Extension Cords (13 Amps)- 16 guage
* Air Conditioners (110-volt ), Sump Pumps, Kitchen Appliances (20 Amps)- 12 guage
* Clothes Dryers, Window Air Conditioners, Built-in Ovens, Water Heaters (30 Amps)- 10 guage
* Cook Tops (45 Amps)- 8 guage
* Furnaces, Large Electric Heaters (60 Amps)- 6 guage
* Furnaces, Large Electric Water Heaters, Sub Panels (80 Amps)- 4 guage
* Service Panels, Sub Panels (100 Amps)- 2 guage
* Service Entrance (150 Amps/ 200 Amps)- 1/0 guage/ 2/0 guage
Use Safe Sheathed Electrical Wire!
A proper plastic covered wires- called NMC or Non Metallic Sheathed Cable- are so far considered the ideal one for indoor wiring. There are many types of such non metallic wires. However, the basic three of them are the NM, NMC and UF electrical wires.
- For normal indoor electrical wiring like lighting and receptacle circuits, use NM electrical cables.
- Use NMC electrical cables above ground or in damp areas indoors because they are well insulated and so safe to use in these areas.
- UF or the underground feeder is an electrical cable which can be used outdoors beneath the ground. Such wires are sometimes not safe to use above the ground as sunlight can destroy the cable sheathing. So, restrict the use of UF wires for undergrounds only.
There are some advice for user to prevent electrical accidents :
1. Regularly inspect the wiring in your home to ensure it is in good condition and prevent potential circuits, which can cause fires. Find and fix a time in poor connections, faulty switches or take-damaged streams, avoid accidents and save energy.
2. Once a month, at least press the test button breaker to see if it works correctly. If you do not shoot when you press the button is defective. In this case you are not protected.
Call as soon as possible, a construction electrician for review.
3. Use proper fuses for the electrical system installed. Never replace a fuse with a wire most electrical fires occur because of this.
4. Secure the joints or joints with strength and cover it with tin or vinyl adhesive “tape.” Do not use tape, adhesive tape or other materials
5. When you leave home or go to sleep, always remember to turn off lights and appliances, because they can become the cause of fire.
6. The appliances, especially televisions and stereos, should be located at a safe distance from the wall to prevent overheating. Before the appearance of smoke or an unusual smell, unplug it immediately and have them checked by a technician.
7. When you stop using the grill, if only for a moment, does not forget to take off and put it in a safe place.
8. Periodically check the cords and connections of your appliances to ensure proper operation and safe. Replace worn cords or cracks.
9. To use, connect, disconnect, connect, and so on, Electrical appliances, there should never dry your hands well.
10. When using electrical appliances to avoid being barefoot or with wet feet.
11. Never touch electrical appliances while in the tub or shower such as radio, TV or laptop connected to the network.
12. To unplug an appliance, never pull the cord, but the plug insulator.
13. It is wise to disconnect appliances after use, whether large or small.
14. Before launching a new appliance, take into account the electric power contract and read the instructions on the appliance.
15. If a device is derived and gives power, disconnect immediately and call a technician.
16. Before using a device to check if the voltage is correct.
17. If you need to operate an appliance, unplug it first.
18. Never use appliances with frayed cords, broken pins, damaged sockets, etc.
19. Before connecting an electrical appliance, make sure it is dry.
20. If an appliance has a grounded, use it if your electrical installation permits.
21. To manipulate an installation must be done without tension. This will turn off the differential, ensuring no tension on that circuit to start work.
22. In the bathroom plumbing hot and cold water, drainage, fences, metal doors and windows, radiators, etc.., Must be connected together and ground network.
23. To change a bulb, first disconnect the corresponding breaker.
24. In the kitchen, attempting to use electrical appliances away from the sink area. Near the fireplace, stoves or heat sources do not place screens or cable runs.
25. Safety As a general rule, always has well-lit places of step (stairs, etc.). And work areas (kitchen …).
26. If an appliance has a grounded, electrical inhalation uses it if permitted.
27. Near the fireplace, stoves or heat sources do not place screens or cable runs.
28. Check the lights repair or replace any damaged and be careful not to touch the curtains or walls. In fluorescent lighting, use ballast with thermal protection and in case you have not, does not place them on wood.
29. Do not overload electrical installations. Also connect several devices to a single outlet or extension, and do not put electrical cords under rugs.
30. If you want to increase the installed load consult a qualified technician or engineer to indicate the changes you do in your electrical system.
For an electrical installation has all the security guarantees must be made by a licensed by the Directorate General of Industry and Energy. Inside each home newly built control panel and protection, whose installation is recommended, also, to all older homes, for the benefits for security of both the people and things. You should not take unnecessary risks in handling and imprudent, is where the danger is prudent.