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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.

9,237 Questions
Home Electricity
New Electrical Work
Modification of Old Electrical Work

How many watts is 60 Hz 5 amps?

That depends on how much voltage is applied, because Volts x Amps = Watts. So find out your Voltage and multiply it by the amperage to get your wattage.

60Hz is standard for AC (hence the term Alternating Current) and used for long distance power transmissions and even household currents. Usually what is coming out of the socket is around 120 Volts (240 for appliances and other countries). So applying this formula to this is simple: 120Vx5A=600 Watts or 240Vx5A=1200 Watts. So on so forth...

Simply multiplying volts times amps gives what's called Volt-Amperes or apparent power. Volt-Amperes equal watts (real power) in largely resistive circuits. Circuits with motors, transformers and inductors have power factors that must be taken into consideration when calculating watts. For example, in a motor circuit with a power factor .6, the watts would be Volts X Amps X .6

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

How many amps does a hot tub draw?

That will depend on the size of the motor, number and wattage of the lights, heating capacity of the system...

Each manufacturer decides their own specifications. You'll need to refer to the owners manual, installation manual or contact the manufacturer.

ANS 2 - ALL the above is perfectly correct, but to simplify it a little. - Most of the hot tubs I see are 220v, and draw 7-9 amps for the pump and 22-25 for the heater. I work on many tubs and spas.

Check all specs before fixing or changing anything, and be careful, electricity and water can be dangerous.

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Car Stereos and Speakers
Home Electricity
Modification of Old Electrical Work

Does the ribbed wire connect to the positive or negative on a light fixture?

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 connected to the wider blade. On some line cords the neutral conductor may have a white stripe instead of ribs.

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Home Electricity
Modification of Old Electrical Work
Electrical Wiring

What is a one pole 2 gang switch?

Typically the number of poles represents the number of sources being switched. In a normal household ON/OFF light switch the single pole is the HOT wire (Black). The most common single pole switch is also single throw. The ON/OFF switch described above. This switch is abbreviated SPST. You could also have a single pole double throw switch (SPDT). and other variants on the same theme. The term gang is usually used to describe multiple switches in the same electric box. For example, if you had 3 switches together with a single switch plate, the switch plate would be described as a 3-gang switch plate.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

How many amps does a 1000 watt ballast use?

To answer this question the voltage of the ballast must be stated and the type of lamp in the fixture.

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New Electrical Work
Modification of Old Electrical Work

What wire is ground red black or white?

white

Another AnswerIn US home wiring, red and black wires are typically "hot" or switch legs and white is "common" or the center tap of the supply transformer. In US homes, ground is either green or bare.
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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What size wire for 100amp. 12vdc?

A #3 copper wire with an insulation rating of 75 or 90 degrees C is rated at 100 and 110 amps consecutively.

As for the voltage, wire is usually rated in 300, 600 and 1000 volts. Any three of these insulations factors will handle 12 VDC.

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Home Electricity
Appliance Voltage and Travel Issues
Modification of Old Electrical Work

Can you plug a 240v device into a 120v wall socket?

No, the device will not function properly.

Some devices can operate on both voltages, a computer power supply for example. Most devices require a properly wired outlet connected to the correct voltage source.

In the US most houses are supplied with 220/240 volt to their utility panel. An electrician can help you install an outlet for your device.

Note:

The above answer is correct. In addition, within the United States, cord caps, {plugs}, and receptacles, {outlets}, have unique configurations for various voltages and currents that prevent plugging in 120 volt loads to 240 volt sources. At the same time, they prevent you from plugging in a 30 amp device into a 20 amp outlet.

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Home Electricity
Modification of Old Electrical Work

Can you plug a power strip into a generator to run multiple items?

Yes, you can plug a power strip into a generator to run multiple items.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What color wire goes to the brass screw on the back of an outlet?

For a country using the USA standard house wiring color code:

the black wire connects to the brass color screw.white to silver color,ground to green.

The international standard for the "live" wire is brown, which would go to the brass screw, plus blue to the white screw, green/yellow to the green screw.

In some cases, another color may also need to be switched, such as a red wire or a white (or blue) one in a three-way circuit. If white or blue wires are to be used for switched live voltage, they should have black or brown colored electrical tape applied to them where they enter the junction box.

Note:

That answer is not completely true. In the United States, the National Electrical Code requires that white or natural grey shall be for neutral conductors, {silver terminal} and green, green/yellow insulation or bare copper wire on the grounding terminal, {green terminal}. The hot, {brass terminal} may utilize any other color insulated conductor. While it is common practice to use black for the hot when using Romex, other colors may be used.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What will happens if you use 14-2 wire on outlets?

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, contact the local building inspector or a local electrical contractor.

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Home Electricity
Modification of Old Electrical Work

How do you replace dining room light fixture?

Answer for USA, Canada and countries running a 60 Hz supply service.Turn off the power to the light at the main circuit breaker panel.

You will be working on a ladder if light is on ceiling so be careful. A non metal ladder is preferred when working with electricity.

Remove the fixture such that the wires connecting it to house power are accessible. In some cases it might appear that the fixture could hang from the wires coming from the ceiling, but do not rely on this. It is best to support the fixture while working on the wires.

There will likely be three wires connecting the fixture to house wiring. Black is hot, white is neutral and bare wire is ground. Unscrew the wirenuts by turning counterclockwise and untwist the wires until all wires are free and the fixture can be removed.

Ensure new fixture mounts can be used with existing mount. While supporting new fixture (Help is advised for all but smallest fixture), reconnect to the the house power with black to black, white to white and ground to ground.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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Job Interviews
New Electrical Work
Modification of Old Electrical Work

What kinds of work interest you the most?

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 depends on what you want in life. (Large family, small house, where you want to live, ect.) It also depends on what you enjoy, what makes you happy, and what your heart decides.

You should go to college. Become a doter, lawyer someone in child care or even the giant pickle advertising a sandwhich shop on the side of a street, the choice is yours but decide wisely. You can become whoever YOU WANT to be.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What is the difference between 10 awg and 12 awg speaker wire?

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 loss of signal.

Additional to loss of signal there is a need to maintain a low impedance driving the typical speaker with its 4 ohm or 8 ohm coil resistance, to avoid frequency-distortion. A guide rule is that the speaker cable should have a total resistance around 1% of the speaker resistance (or less). On that basis, for 5 yards of speaker cable for a 4 ohm speaker the wire size would be 4 sq. mm (11 AWG) or for an 8 ohm speaker 2 sq. mm (14 AWG).

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Using the above formula of 1% of the speaker resistance the above answer is not correct.

For a 4 ohm speaker at 1% is .04 ohms. The resistance of #12 wire is .001588 ohms per foot. This will allow you to run 25 feet and still stay within the parameters.

For a 4 ohm speaker at 1% is .04 ohms. The resistance of #10 wire is .00100 ohms per foot. This will allow you to run 40 feet and still stay within the parameters.

You can see, what the first answer states is correct.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

How many amps 400 watt light 220 volt?

The formula you are looking for is I = W/E.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What size wire should you use for 1000 amps?

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 current handling capacity is done with bus bars using bus trough. Parallel and triple runs of conductors is the more likely scenario Parallel runs of 750 MCM or triple runs of 400 MCM will give you a total ampacity of 1000 amps. A 750 MCM copper wire is rated at 500 amps and a 400 MCM wire is rated at 345 amps.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

Is there 1000 milliamps in an amp?

Yes, 1 amp is equal to 1000 mA.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

How do you wire 3-way switches using only 14-2 wire when the setup is Light-Switch 1-Switch 2 Switch 1-Light-Switch 2 and Switch 1-Switch 2-Light?

You have to use 3 insulated wires beween the two switches as is shown in the circuit diagrams shown in the Related Link shown below this answer:

How to wire 3-way and 4-way switches, including wiring diagrams

If you don't have any 14-3 then, to get 3 insulated wires, you can use two lengths of 14-2 cable and just leave one wire of one pair clipped short and not connected to anything.

If you connect extra lights in parallel with the first light you will be able to switch all the lights on and off together using the same pair of switches.

You will find more information that will help you if you look at the answer to the separate Related Questions which are all shown below this answer, especially:

How do you hook-up or wire up one light with two on-off switches?

You will get even more information if you also look at the answers to that question's own Related Questions.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

299300301
Home Electricity
New Electrical Work
Modification of Old Electrical Work

What does 12 amps resistive load mean?

A resistive load just describes something like a toaster, electric water heater or space heater, where the load is relatively constant. The description is used to distinguish from something like an electric motor, which uses much more current at startup then drops off significantly after it is running.

Answer

In a.c. circuits, a resistive load describes a load whose load current is in phase with its supply voltage. Expressed another way, it is a load having unity power factor. Resistive loads are not necessarily constant -for example a tungsten-filament lamp has a low resistance when cold and a high resistance at its operating temperature.

299300301
Home Electricity
Modification of Old Electrical Work
Electrical Engineering

Why does your circuit breaker blow when you use your washing machine?

Your washing machine should be on its own dedicated circuit. When it runs it draws current. If the current exceeds the breaker rating the breaker will trip. You didn't say anything about the circumstances so it is hard to pin down the cause. Some possibilities are:

1. A bad breaker.

2. There is some obstruction or binding on what the motor is trying to turn and it stays in an over-current start up mode trying to overcome the mechanical loading.

3. There is a short circuit in the windings in motor causing it to draw too much current.

4.There is a short circuit in your wiring to the washing machine.

If breaker blows immediately when you turn on washer the problem is likely 1, 3 or 4.

If it happens somewhere in the cycle it is likely 2.

299300301
Home Electricity
New Electrical Work
Modification of Old Electrical Work

What color screw does the black wire attach in a porcelain light fixture?

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 difference, connect the black wire to whichever screw connects to the CENTER contact of the light fixture.

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Home Electricity
Modification of Old Electrical Work

What size wire do you need for 30 amp 220 volt?

10-2 +ground.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

Can you plug a 30 amp plug into a 40 amp outlet?

Yes and only if the device connected to the 30 amp plug draws no more than 30 amps.

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No, the configuration of a 30 amp plug will not fit into a 40 amp outlet. This for a safety reason that they make different configurations of plugs rated at specific amperages. A 40 amp outlet is protected by a 40 amp breaker so the wire will be be able to carry 40 amps before the breaker will trip. The maximum amount of current allowed on a 30 amp plug is 30 amps and if it allowed to be plugged into a 40 amp plug it is 10 amps or 33% beyond the plugs safety rating.

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Home Electricity
Modification of Old Electrical Work
Home Appliances

Are there any dryers with a regular wall socket plug?

No; the third prong is there to protect you from stray voltage and it grounds the wiring. Although you could probably find an adaptor, it would be much safer for you to have an electrician rewire the outlets so they can accept a three prong plug.

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Home Electricity
New Electrical Work
Modification of Old Electrical Work

What size wire is needed for 1600 amp service?

4 sets of 750 mcm aluminum.

Or four parallel runs of 600 MCM copper.

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