Modification of Old Electrical Work
Electrical and building codes have changed over time and new methods proscribed for safety. Converting the old to the new leads to lots of questions.
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ID1977316882
wrote the first answer to What is the purpose of compensating cables wires 26 May 2012 08:18
ID1124097271
added How do you change a 110 socket outlet into a 210 socket outlet to Modification of Old Electrical Work 25 May 2012 15:43
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added How do you wiring drum switch to Modification of Old Electrical Work 25 May 2012 06:57
Kravdave [55]
wrote the first answer to How do you disconnect electrical outlet from the light switch 24 May 2012 11:41
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Questions
Poppaloosa
Rm391075You shouldn't. However, in a residence, you don't have 3-phase. You have single phase delivered by two "hot wires" and a ground....
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I definitely think you should replace the wiring. If not in all outlets but at least those that will be used most. Might want to...
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If you don't need it, you don't need to upgrade it. However, most modern homes are built with or retrofitted with 200 Amp main...
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After you obtain a matching type of switch (there are three major types, see below): Safety: Understand that we all make...
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As an electrical engineer for a power company I see on average a house that is 1600-2000 square feet and having electric...
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Not a Good Practice Really a Dryer Outlet should only be used to power a Dryer. It wouldn't be wise for you to do this without...
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This is a dangerous precedure and is illegal in 40 states. It's best to leave the lighting fixture and install a new outlet. IF...
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That depends on how much voltage is applied, because Volts x Amps = Watts. So find out your Voltage and multiply it by the...
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For a country using the USA standard house wiring color code: the black wire connects to the brass color screw.white to silver...
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On a molded 2- or 3-wire line cord the ribbed conductor is the neutral conductor. On a polarized 2-prong plug it will be...
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10 AWG wire will have less resistance per foot and therefore you can have longer runs with 10 AWG than 12 AWG without as much...
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If I was upgrading, I would install a 200 amp box so there would be adequate power in the future. Answer You should...
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To answer this question the voltage of the ballast must be stated and the type of lamp in the fixture.
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Typically the number of poles represents the number of sources being switched. In a normal household ON/OFF light switch the...
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Yes, you can plug a power strip into a generator to run multiple items.
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A #3 copper wire with an insulation rating of 75 or 90 degrees C is rated at 100 and 110 amps consecutively.
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That will depend on the size of the motor, number and wattage of the lights, heating capacity of the system... Each manufacturer...
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One thing to keep in mind when you talk of upgrading an electrical service. That is that a permit will have to be taken out,...
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There is a couple of things going on here. First a 30 amp dryer plug will not fit into a 50 amp range plug. So rather than...
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Yes and only if the device connected to the 30 amp plug draws no more than 30 amps.<<>>No, the configuration of a 30...
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It depends on who the person wants to be. Personally I would like to be a detective or a lawyer. Lawyers pay very very well. It...
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It's not a problem so long as you use a 15 amp breaker. If you have any questions about electrical regulations in your area,...
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No, you can not use a 150 watt high pressure sodium bulb with a 70 watt ballast.
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If there is a brass colored screw and a silver colored screw, the BLACK wire will connect to the brass screw. If you can't see a...
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white Another AnswerIn US home wiring, red and black wires are typically "hot" or switch legs and white is "common" or the...
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Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is...
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That depends on voltage you use. watts=voltage x amps.if you know the voltage then you can calculate the watts automatically.For...
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Take the amount of watts the drier demands then divide by 120 volts. You will have your answer, most people call 120 110 volts...
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There are a couple of choices. Single conductor is out of the question as it is physically too hard to work with. That type of...
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No, the device will not function properly. Some devices can operate on both voltages, a computer power supply for example. Most...
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A resistive load just describes something like a toaster, electric water heater or space heater, where the load is relatively...
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non galvanized means it will rust with moisture. wire rope is another name for stell cables used on elevatores , cranes...
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If an electrical device fails it can send current to the housing of the device or to any of the controls that are available to...
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The short answer is you don't. More than likely you are looking at a three phase motor with three hot wires (to each be connected...
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4 sets of 750 mcm aluminum.Or four parallel runs of 600 MCM copper.
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Fuse sizes are determined by the amp capacity of the wire. #8 copper takes a 35 amp maximum #10 gauge copper takes a 25 amp...
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For the furnace Watts = Amps x Volts Divide watts by 1000 to get 4.8KW.
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Your washing machine should be on its own dedicated circuit. When it runs it draws current. If the current exceeds the breaker...
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No. By using a higher amperage fuse, you allow more dangerous current to pass through the wires. The fuse would not be able to do...
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In typical DC circuits, Red = Positive, Black = Negative.
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for USA, Canada and countries running a 60 Hz supply service. Turn off the power to the light at the main circuit breaker panel. ...
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Yes, 1 amp is equal to 1000 mA.
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If you asked this question because you have no experience of working on the latest household power circuits and you hope to get...
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No, this is a very dangerous procedure especially to anyone that works on the electrical system.
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The formula you are looking for is I = W/E.
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Before making any changes to circuit breakers, make certain that the breaker does not exceed the capacity of ANY current carrying...
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Volts * Amps = Watts 220V * 20 A = 4400 Watts BUT!!! You don't want to run a generator at 100% capacity for very long; that...
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A range, when purchased new, can be supplied with either a 4 prong plug or a 3 prong plug. It is the purchaser's choice and when...
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for USA, Canada and countries running a 60 Hz power supply service. No, a clothes dryer can not be plugged directly into a range...
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The device that holds a light bulb is called a keyed lampholder or a pull chain lampholder. These have the switch built into the...
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NO. The wiring and the breakers on the 30 Amp circuit supplying the 30 Amp outlet would not be able to supply enough power to a...
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Your question is a bit vague, but let's try a two part answer. If you have a GFCI breaker in an electric panel you should only...
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I assume you mean a standard (15 or 20-amp) outlet and are not trying to make a 220 connection for a stove, dryer or air...
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First of all, does this mean that the light is permanently on? Basically what a switch does is interrupt the current flow...
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You cant!! you need 3 conductors between both switches! 2 are for the switch leg the other is for the neutral for light, you...
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It depends on a lot of factors. Since you will have to get an electrician involved you should start there. It is likely that you...
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Yes, with a caveat. The 50A wire and plug is more than heavy enough for the dryer, so there is no problem there. The possible...
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It is any device that uses electricity or facilitates its use. When discussing electric circuits the devices that may be...
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AnswerI am not an expert on the mather, but in my opinion, I would say yes.Here is why: (and provided that the windows are on two...
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12 guage wire israted for 20 amps and 10 guage is rated for thirty amps! 12 gauge is what is required, as it is rated for 20...
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First you need to read the manufactures mane plate to find out the amperage of the appliance. Then you need to runs run a wire...
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You can put 16 standard electrical plugs on a 20amp breaker.
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I=V/R In words, Amps equals power divided by voltage. So you need to know voltage. Assuming 120 volts, Amps=5600/120=46.7
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In electrical terms the common wire is the neutral or the wire that returns from the circuit load, so no the common wire is not...
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Do a GOOGLE search on the National Electrical Code and look it up there. I would trust that answer more than what you`ll get...
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Watts = amps * volts * PowerFactor If power factor is 1 then 1900 / 110 = 17.3
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I`m not an electrician but have done some commercial renovations and I believe you should not have holes in a bay on both sides...
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It is the leg to ground or (star point) of 3 phase 480 volts. 480/1.73 = 277 volts
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This needs to be done by an electrician. The basic steps are:1. Make sure that the cable from power company support 100 Amps...
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Bad switch. Open wiring between switch and lights.
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The five lights will all be in parallel with each other and wired the same as a single light in a three way circuit. See related...
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Yes, but you will only get one quarter of the wattage from the heater.
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Do you remember basic arithmetic? Do you remember pi r square. If the diameter is 2, the radius is 1. If the diameter is 4 the...
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Simple Answer is just to know two formulas Ohm's Law V = IR Power P = IV From those you can calculate voltage, amps, watts,...
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The unit kWh is a unit of energy, which is power multiplied by time. Multiply the power of the equipment (measured in W or kW) by...
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A 350 MCM copper wire with an insulation factor of 75 and 90 degrees C has an amperage rating of 310 and 325 amps respectively....
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It's not clear what exactly you mean. You can run two neutrals next to each other as long as you otherwise abide by electrical...
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original answer: 2 have plastic/rubber insulators at the beginning of them, the other one (usually the top one) is metal,...
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Common sense with electrical systems dictates that current in a circuit be limited to 80% of nameplate (20A). The number of 150W...
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3/0 which is pronounced Three Ought.
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110 volt heater on 220 volts The load is a resistive load and as such it is governed by Ohm's law. Current is directly...
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The only reason the dryer breaker will trip is it senses an overload or a short circuit on the circuit. To test this unplug the...
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The four blade receptacle that is on your generator has the ability to to generate 120/240 volts. This is what your house voltage...
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That depends on the context. In the case of a vehicle, if you "hot wire" the ignition it means that you have bypassed the...
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For a resistive load Watts = Volta * Amps. Therefore, you have 1/4 amp or 250 Milliamps (250ma)
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Watts is a measure of power and Ohms is a measure of resistance. A resistor has a maximum rating in watts, but you need to know...
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Any splice or termination to a device has to be done in a junction box. Wire splices are the critical and most likely point in a...
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for USA, Canada and countries running a 60 Hz supply service.In order to calculate this accurately I need to know the voltage of...
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A 400 MCM copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 700 feet on a 240 volt system....
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Please be more specific....simply replacing the breaker with a 20 amp may cause a fire; if the cable is sized for 15 amp and is...
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The landlord does not have to do any rewiring for you. The landlord has the obligation to make the place basically habitable....
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Excellent question. That depends on the voltage, for 120 VAC, the answer is 156 watts. PIE, Power (in watts) = current (amps) X...
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3 OR 4 . you only need 2 wires for 220, 1 phase is 120v between 2 of them its 220v . you also should have a ground for the third...
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This type of connection can be very dangerous. A proper double pole double throw switch must be utilised in this type of...
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On your model number the figures after 400MH are the voltages for that ballast. A 40 represents 240 volts, 12 represents 120...
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You don't. Electric devices like outlets have voltage and current ratings that should not be exceeded. Also, the 240V would have...
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You have more capacity. If you are starting from scratch you want to size the service for what you might grow into in terms of...
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