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New Electrical Work
Electrical work ranges from the installation of new electrical components to the maintenance and repair of existing electrical infrastructure. It may also include wiring airplanes, ships and other mobile platforms.
4,938 Questions
Power = Volts * current [p = E*I]; 120volts*10amps = 1200watts
How many lights off one switch?
ten lights per curcuit
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Circuit loading
In Canada there shall be not more that 12 outlets on any 2 wire branch circuit. Such outlets shall be considered to be rated at not more that 1 amp per outlet. Where the connected load is known, the number of outlets may exceed 12 providing the load current does not exceed 80 % of the rating of the over current device protecting the circuit.
What is the PEC requirement regarding the standard heights for switches and outlets?
one foot from ground floor distance outlet five foot distance
switch
Bends are made in PVC conduit using a tool known as a?
Bends are made in PVC conduit using a tool known as a heat gun or a heat blanket. If you want to make make accurate and aesthetically pleasing bends without distorting the pipe, the PVC conduit must be heated thoroughly - inside and out. This is achieved using a "heater box," or a "heater blanket." Greenlee tools makes both, specifically for working with PVC conduit. Also available are plugs for plugging the ends of the PVC lengths to be bent, for keeping heat trapped inside the pipe and speeding up the heating process.
Can an electric baseboard heater be installed under a towel rack in a bathroom?
Yes, an electric baseboard heater can be installed under a towel rack in a bathroom.
Why do we need dedicated earth wire for socket outlet?
Yes, all receptacles require an earth ground. (the bare copper wire in house wiring). However, it is not a dedicated ground in that all ground wires in a houses electrical system are connected or in common.
What combinations of bends in a conduit run require the use of a pull box?
Code states no more that 4 - 90 degree bends in a conduit run between pull boxes.
What is used to move electrical energy from one place to another?
For all practical purposes, we are still limited by wireswhen we need to move electrical energy.
What is the minimum copper size wire for a 40HP motor?
That depends on the voltage of the motor and the circuit. A 40 HP motor is a fairly large motor. If you don't know the answer to your own question, it's unlikely that you're qualified to wire it. Better consult and/or hire a qualified commercial electrician.
What is the minimum depth required for a flush box that contains a standard duplex receptacle?
2-3/4"
Can a 4-pin compact fluorescent socket accept bulbs of different wattage?
Yes and no. There is a small range of wattage for which the built in ballast is designed for. Best to stick with the original wattage 4 pin lamp.
What is the largest single pole breaker that is made?
In 30 years in the electrical trade, the largest one I've ever seen was 80 A. They may make larger ones. You have to check with manufacturers.
In a standard 3 phase system in North America, 7kVa would be equivalent to 19.5 amps on each phase. The equation is: 7kva*1000/208v/1.73=19.45 amps (3 phase)
What is the metal piece that connects pull chains together called?
A pull chain connector. really.
Bead chain connector. See related links below.
When you talk of voltage, you should be thinking of the insulation factor of the wire. By the same token when you talk of wire size, it is based on the amperage the wire is required to handle.
What size hole should be drilled for wire that will be pulled through the walls?
3/4 in hole good, 1 in hole better. That gets you a full 1 and a half inches from nails and dry wall screws etc and allows electricians to come back and pull more wire etc. Depending on circumstance you may also want to put steel plates over the 2x4 where you drilled the hole, so if some idiot comes behind you with trim nails longer than 2 inches you wont get a short or set the house on fire also a good idea where plumbers drill for pipes... Irecommend a short auger bit to drill with and angle headed Drill. Milwaukee makes an excellent one. I work as a remodel carpenter and am a journeyman electrician.
Is there a required code distance between an electrical panel and gas fired heater?
four feet i think may be less that may be gas im thinking of
What is the process of creating electricity in one place and moving it to another for use?
Transmission lines.
When do you say that work is done?
Work is considered done when all the tasks and objectives set out in a project or assignment have been completed satisfactorily, meeting the predetermined criteria and specifications. It signifies successful accomplishment and achievement of the desired outcomes.
How do you direct wire security light from outlet have 3 wires?
A 3 wired electrical fixture includes positive, negative and ground. The ground can be attached to one of the screws in the wall. In the case of the other wires, matching the colors, twisting and capping the wires together will handle the electrical installation.
How many volts from a double pole 15 amp breaker?
Answer for USA, Canada and countries running a 60 Hz power supply service. 230 to 240 volts on any size two pole breaker on single phase installations. The voltage varies from location to location from different utility power companies.
How much copper by weight is in one 50ft 20 amp extension cord?
depends on the wire gauge and strand type
sold strand 12 AWG wire is 50.57 feet per pound.
most extension cords however are not solid strand, they are multistrand line which allows for flexibility and breakage.
standard size is 28 AWG, 2067 feet per pound.
7 strand 12-3 line gives you 1050 feet of 28 AWG
or ~$2 worth of copper if its clean and bare, less if it still in its insulator or if the insulator is burned off.
