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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
Can the bare grounded neutral conductor of a service be buried directly in the ground?
A bare grounded neutral should never get close to the ground if it is wired properly. When the neutral leaves the meter base it is in conduit and should enter into the distribution panel where it connects to the neutral buss. It is at this junction that the copper ground wire is connected after coming from the outside ground rod or ground plate which ever grounding system was used.
What guage wire for a 220 volt 50 amp at 50 feet?
For a 50 amp circuit at 220 volts running for a distance of 50 feet, you would typically need a 6-gauge wire. This wire size can handle the current without significant voltage drop over that distance. It is always recommended to consult with a qualified electrician to ensure safety and compliance with local electrical codes.
It sounds like the outlet was wired by someone that didn't know what they were doing and installed the wrong size breaker ahead of the outlet. The main purpose of selecting the right size breaker to suit the wire is to prevent these conditions from happening.
How do you wire Marinco 2018BR receptacle?
To wire a Marinco 2018BR receptacle, you will need to connect the black "hot" wire to the brass terminal, the white "neutral" wire to the silver terminal, and the green or bare copper wire to the green terminal for grounding. Make sure to follow the manufacturer's instructions and guidelines, and consider seeking professional help if needed to ensure proper installation and safety.
If you have 72 watts and 12 volts dc how many amps am i producing?
To find the amperage, you can use the formula: Amps = Watts / Volts. In this case, with 72 Watts and 12 Volts, you would have 6 amps of current.
A fuse rated for 3 amps is commonly used to protect small electrical appliances such as microwaves, televisions, and audio equipment. It is designed to interrupt the circuit in case of overcurrent to prevent damage to the equipment or fire hazard.
How do you make a 30 amp to 15 amp extension cord?
If your extension cord is truly a 30 amp cord then it is composed of #10 wire. #10 wire is rated at 30 amps. All you have to do is remove the 30 amp plug and receptacle ends from the cord and install 15 amp cord ends.
How many milliwatts equal 1 watt?
1 KW = 1000 Watts.......1 mW = .001 Watt.......1 microwatt or uW = .000001 Watt
How do you install lighting in ceilings with insulation?
Assume you are asking about recessed lighting. There are units that have a can around where the bulb is located to keep insulation a safe distance from the heat generated by the bulb. Just cut away the insulation so the can will fit. Buy a fixture that has thermal protection and will cut off if the fixture gets too hot. Follow manufacturer's recommended installation procedures.
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Don't leave your ceiling vapour barrier with a break in it. At the place where you buy your fixtures ask for a vapour barrier plastic boot to go over the fixture to seal the existing barrier. The easiest method to install this boot is from the top side in the attic if possible. Make sure that you use vapour barrier adhesive tape to seal the existing barrier to the new fixture boot.
because atoms, electrons, and neutrons are all very, very small. So they are not visible to the naked eye. However scientists can see these micro organisms with a microscope. Electricity is also visible when it sparks.
What gauge do you need for electric 12 amp leaf blower?
For an electric leaf blower that operates at 12 amps, you should use a 14-gauge extension cord. This gauge wire is suitable for handling the electrical load without overheating or causing a voltage drop over long distances. Make sure to check the manufacturer's recommendations for the specific model of leaf blower you have.
Can I feed 2 100 amp sub panels from my 200 Amp main service?
DO NOT FOLLOW THE INSTRUCTIONS BELOW!
According to this logic, one could chain an infinite number or sub-panels off of a single one hundred amp feed. The second law of thermodynamics prevents this. An hundred amp service is not capable of powering another hundred amp service unless you are trying to move your panel and all of the circuits it feeds as well, without adding another hundred amp load. NEC (National Electrcial Code NFPA Book 72) states that certain loads can be derated but not to this extent.
As far as the voltage drop is concerned, you need only worry about this with runs of about two hundred and twenty five feet or more for a 200 Amp Service running 2/0 2/0 4/0 URD direct burial aluminum.
What you need is a new 200 Amp service to feed your original 100A panel and another hundred amps to feed your new load.
for USA, Canada and countries running a 60 Hertz supply service.Yes you can as long as the feeder to the other 100 amp panel is equal to the ampacity of the breaker. In this case you would need to use a #3 wire rated at 90 degrees C if the distance to the other panel is under 50 feet. If the distance is longer that this a voltage drop calculation would have to be added to increase the wire size.<<>>
My experience would lead me to believe that you could not install a breaker that was greater to or equal to the rating of the main breaker. To add a sub-panel, you will need to install a breaker that is half or lower than the main breaker.
In your case, you have a 100A service; you will need to install a 50A or smaller breaker to service the sub panel.
Consult an electrician if in doubt.
If you have any doubts about an answer that you get, check the answerer's bio by clicking on their name to check their qualifications.
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 REALLY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
1 ton of cooling at 480 Volts equals how many amps?
To determine the amps for a 1 ton cooling unit at 480 Volts, you would need to know the power rating of the unit in Watts. Once you have the Watts, you can use the formula Amps = Watts/Volts to calculate the amperage.
How do you get enought electricity to your new wall oven and microwave from a standard outlet?
First, determine the current necessary to operate the appliance. Read the installation manual to find out the manufacturers recommendations.
If the existing outlet does not supply sufficient current to operate the appliance, you'll need to run a new wire and install a larger breaker in your main breaker panel.
What are electrical outlets made of?
Electrical outlets are typically made of a combination of thermoplastics, metal contacts, and internal wiring components. The outer casing is usually made of fire-resistant materials to ensure safety during operation. The metal contacts inside the outlet provide the connection point for electrical devices.
In practical terms, the ampere is a measure of the amount of Electric_chargepassing a point per unit time. Around 6.242 × 1018 Electronpassing a given point each second constitutes one ampere.
The above answer comes straight from Wikipedia.
What do the watts mean in amps?
Watts is a measure of power, while amps is a measure of electric current. The relationship between watts and amps depends on the voltage of the circuit. The formula to calculate power (in watts) is P = V x I, where P is power in watts, V is voltage in volts, and I is current in amps.
Will a 30 watt transformer damage a device needing only 15 watts?
No, the rating of the transformer, in watts, is the maximum amount of energy that can be safely drawn from the device. Any wattage load up to that limit is safe to connect as long as the voltage is correct to the load.
Why does the GFCI plug trip when the bathroom exhaust fan is turned on?
The electrical code exists to protect against three things...
1. shock
2. fire
3. idiots
The purpose of a Ground Fault Current/Circuit Interrupter (GFCI) is to detect when there is an imbalance between the power going through the hot and neutral terminals. If one has more power going through it, that means that the power that was supposed to be going through the other is actually going through something else (ground fault or maybe even a person).
If this happens when the fan is turned ON, it means that you have a ground fault (the ground is getting power instead of the fan). This happens whenever a powered wire touches anything that's grounded Check your GFCI receptacle and the fan's electrical wiring to make sure there is no way the white and black wires can touch anything metal other than their terminals.
If this happens when the fan is turned OFF, the fan is probably still turning and, being attached to a motor, becomes a small generator. This EMF (Electro Magnetic Feedback) is probably the culprit causing the GFCI to trip. You'll need to ask an electrician about this scenario and they'll tell you the best solution depending on the problem.
Why does GFCI plug trip when exhaust fan is turned on?
That probably indicates a fault in the exhaust fan; either a motor winding has failed, or the fan is wired improperly.
Just to amplify - The Ground Fault Current/Circuit Interrupter (GFCI) detects current flowing to ground that should instead be flowing in the fan. This means somewhere in the fan the Hot wire has an unintended path to ground and is a shock hazard. You should check the wiring to the fan (with power off) and make sure there are no bare wires that could be causing your problem and if you don't see anything obvious you should replace the fan.
GFCI plug trips when fan is turned on?
The Ground Fault Current/Circuit Interrupter (GFCI) detects current flowing to ground that should instead be flowing in the fan. This means somewhere in the fan the Hot wire has an unintended path to ground and is a shock hazard. You should check the wiring to the fan (with power off) and make sure there are no bare wires that could be causing your problem and if you don't see anything obvious you should replace the fan.
"Volt" is a unit of potential difference. "Joule" is a unit of energy. There is
no direct conversion from one to the other.
-- If a 2-ohm resistor is connected to a 5-volt battery, then the current
through the resistor is volts/ohms = 2.5 amperes.
-- The power supplied by the battery and dissipated by the resistor is
(volts) x (current) = 12.5 watts.
-- "12.5 watts" means "12.5 joules of energy every second".
Can you use a 250 watt bulb with a 15 amp switch?
Yes, you can use a 250 watt bulb with a 15 amp switch. The switch is rated for up to 15 amps, which is more than enough to handle the power of a 250 watt bulb. Just make sure that the wiring and other components in the circuit can also handle the load.
For a 200 amp service, you would typically use a 4/0 AWG copper wire for the grounding wire running between the meter box and the service panel. This size is suitable for carrying the necessary current and providing proper grounding protection for the electrical system.
Size wire for 12 volt dc 200 amp 8 ft length?
For a 12V DC system with 200A current flowing through an 8 ft length, a wire gauge of at least 2/0 (00 gauge) is recommended to ensure minimal voltage drop and for safety reasons due to the high current involved. Be sure to use proper insulation and keep in mind the wire material as well.
