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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
for USA, Canada and other countries running a 60 Hz supply service.
A very open-ended question!! More information is needed to give an accurate answer.
Where are these wires located? What does the black wire go to?
Assuming this is in a dwelling where NM cable (Romex) was used, I don't see how you could only have white wires.
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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.
What wire size will carry 50 amps 200 ft 220 voltage?
Actual voltage would be 240V. 4 AWG copper is capable of carrying 50A. At 200 ft, with a 50A load, voltage drop would be about 6V, which is within the acceptable 3% voltage drop for a branch circuit.
Can a insulated ground wire be used in lieu of a tinned bare ground wire?
No, an insulated ground wire cannot be used in place of a tinned bare ground wire. The grounding wire must have a bare tinned copper conductor to provide a proper and effective path for excess electrical currents to flow safely to ground. Using an insulated wire can create safety hazards and may not meet electrical code requirements.
Can you use a smaller watt bulb in a bigger fixture will it run at bulb watt or fixture watt?
Yes, because the "higher" watt energy saver bulb (cfl) is actually a lower watt bulb than a standard (incandescent). Always look at the actual watts, not the 'light equivalent watts'. 11 watt low energy tube = 60 watts of old-fashioned light. More light, less heat!
Can a 150 amp panel be upgraded to 200 amp?
"CAN"? Certainly. But you will need to run a new service cable. You'll need to have your licensed electrical contractor work out the details with your local electrical power company, and get the appropriate permits.
Can a 125V and 30 amp plug be used for a device that requires 24V and 50 amp?
No, the plug and device have different voltage and amperage requirements. Using a 125V 30 amp plug for a device that needs 24V 50 amp could damage the device and pose a safety hazard. It is important to match the electrical specifications of the plug and device for safe operation.
12-2 (#12-2 conductor) wire doesn't "pull" 20 amps. However, it's ampacity rating is that of 20 amps. #12 copper wire is rated for a total load of 20 amps. So, always use a 20 amp breaker with it.
How many 500 watt flood lights can you put on a 13 amp plug?
Depending on the efficiency of the flood lights, you should be able to safely run one 500 watt flood light on a 13 amp plug. Keep in mind that it's important not to exceed the amp limit to prevent overheating and potential fire hazards.
What is the Max amps per NEC for a 200 amp 240v 3w service total and per leg?
The simple answer is...wait for it...wait for it...200amps per leg.
But generally you want to load a circuit to no more than 80% of its rating so that would be 160 amps. Beyond 80% you can get what is called nuisance tripping caused by heat, small surges, and quality of the breaker. Technically the NEC limits continuous loads (3 hours or more of continuous operation) to 80%, but non-continuous loads can be run at 100% capacity of the circuit rating. Since you are asking about a service, the terms continuous and non-continuous don't really apply but it would be extremely hard to load a 200 amp service in a home to near capacity even with an all-electric home.
How do you power an outlet from a one wire light switch on same wall?
The one wire carries the electricity or voltage. The lamp is grounded completing the circuit.
You don't. The light switch is only half the circuit, a lamp has nothing to ground to so it can not work. If the wire to the switch is 3 wire, the bare wire would complete the circuit and power the plug, but it would not be up to code and could present a fire hazzard.
How many watts are in a system with 120 v and 25 amps?
To find the watts in a system, you can use the formula P = V x I, where P is power in watts, V is voltage in volts, and I is current in amps. For a system with 120 V and 25 A, the calculation would be 120 V x 25 A = 3000 watts.
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
Why is neutral and ground wires sometimes needed to be bonded in a dry type transformer?
With very few exceptions your neutral and ground are always bonded together at the service. They can be bonded together anywhere from the transformer to the first overcurrent device, usually a panel, but in the transformer is where it is usually done.
Bonding the neutral keeps your voltages from floating. Without going into very technical explanation, suffice it to say that without proper bonding you can get different voltages supplied to various circuits in the building or home. Higher voltages can cause burn out of fixtures or equipment and lower voltages can burn up motors or keep lights from providing adequate light.
What size wire do you need for 50 amp sub panel about 150 feet away 120 volts?
The usual allowable voltage drop is 5%, or 6 volts on a 120 v supply. For a 50 amp supply that means the total wire resistance must be (at most) 6/50 ohms, or 0.12 ohms. Because there is 300 ft of wire the resistance per ft must be 0.12/300 ohms per ft, or .0004 ohms/ft or 0.4 ohms per 1000 ft. Wire tables show that #6 AWG wire is needed, with a cross-section area of 13.3 sq mm.
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Answer for USA, Canada and countries running a 60 Hz supply service.
The code book suggest that a 3% voltage drop should be the maximum allowed. A #3 copper conductor will limit the voltage drop to3% or less when supplying 50 amps for 150 feet on a 120 volt system.
What size wire do I need for a 60 amp service either 750 feet or 500 feet away?
It depends on the supply voltage because at that distance the size of the wire is calculated on the volt-drop which is 5% of the supply voltage, or 3% in some countries. The allowable resistance equals the volt-drop divided by the current, then you can use wire tables to find the wire size, remembering that a supply needs 2 wires which are in series so that their resistances add.
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To answer this question a voltage value has to be stated. This is due to the higher the voltage the lower the current on a specific load. The lower the current, the smaller the wire size can be.
When connecting chain switch what is done with the neutral wire and white wire from ballast?
The neutral wire from the chain switch is connected to the white wire from the ballast. They should be connected together using a wire nut to ensure proper circuit completion and safe operation of the light fixture.
Can a 8 awg wire be replaced by 2 10 awg wires?
No, a single 8 AWG wire cannot be replaced by two 10 AWG wires in terms of electrical capacity and current-carrying capability. The 8 AWG wire has a larger cross-sectional area and can handle more current compared to two 10 AWG wires combined. It's important to match the wire gauge with the specific requirements of the circuit to ensure safety and proper functioning.
How many watts do you need for 26 amps?
6240 watts if it's on a 240 volt circuit. A better answer is to just learn that amps X volts = watts.
What could be causing your ir-12 diedrich coffee roaster to blow a breaker in your breaker box?
First, determine the current draw of the coffee roaster, then check the breaker size.
Using the formula, Watts = Amps * Volts, determine if the current draw of the coffee roaster is anywhere near the maximum current draw of the breaker. For example, if the roaster is using 14 Amps, and the circuit breaker is rated at 15 amps, that doesn't give much room for anything else on the circuit.
Add up all of the current of all devices on the circuit (the one that trips the breaker) and either move things around so that you don't have too much load on a single circuit, or you may need to bring in an electrician to run a new circuit.
If you are ABSOLUTELY certain that your appliances are nowhere near the rating of the circuit breaker, you could have a faulty breaker, in which case, bring in an electrician to replace the breaker.
yes
Another (corrected) answer.NO! The circuit breaker is there to protect the wiring from overheating. It wouldn't matter where on the circuit you decided to put the 14 gauge wire, you would need to change the breaker to 15 Amp if you did that. Using 14 gauge wire on a 20 amp circuit is a fire hazard and contrary to UBC.Contact your local building and zoning department to verify.
What is the difference between a 30 amp and a 40 amp breaker?
A 30 amp breaker is designed to handle a maximum continuous load of 30 amps, while a 40 amp breaker can handle a maximum continuous load of 40 amps. The 40 amp breaker allows for more current to flow through before tripping, making it suitable for higher power requirements compared to the 30 amp breaker. Always consult with a qualified electrician before adjusting or replacing circuit breakers to ensure safety and compliance with electrical codes.
What size circuit breaker is needed for a 190 amp welder?
The size of the circuit breaker and the wire that will feed the welder is based on the amperage that is needed by the welder. The voltage only explains what the insulation factor of the wire should be.
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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.
Connect the white wire from the European oven to the white wire in the US receptacle. Connect the black wire from the European oven to the black wire in the US receptacle. Connect the green wire from the European oven to the bare wire in the US receptacle. The green wire serves as the ground wire since you don't have a separate ground wire in the US receptacle.
How do you get electricity to a wall switch when getting electircity from an outlet?
Simply run a wire from that outlet to that wall switch. Be sure you use the exact same wire size that you find in that outlet. It will be AWG 12/2 or 14/2. Do not mixes wire sizes. Connect the ground to green ground screw at outlet, and white wire to silver screw, and black wire to gold screw. At the light switch connect all white wires together under a wire nut and push them back into the box. Connect the ground wire to the green ground screw on the switch. Now connect the 2 black wires you have left, power in and power out, to the 2 screws on the switch. Does not matter which wires you connect to the 2 screws.
How many watts is a Kenwood KAC-744 amp?
The Kenwood KAC-744 amp has a power handling capacity of 50 watts RMS per channel at 4 ohms.
