answersLogoWhite

0

📱

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.

500 Questions

What size ground wire is needed for 400 amp service entrance?

User Avatar

Asked by Wiki User

For a 400 amp service entrance, a grounding conductor of at least 3/0 AWG (American Wire Gauge) copper or 250 kcal (thousand circular mils) aluminum is required, in compliance with electrical codes and regulations. However, specific requirements may vary based on local codes and the specific conditions of the installation, so it's important to consult with a qualified electrician or refer to the applicable building codes for precise guidance.

What size wire do you need for a 150 amp breaker?

User Avatar

Asked by Wiki User

A #6 copper ground conductor would be needed.

What height do you fit electric sockets in UK?

User Avatar

Asked by Wiki User

The standard height is around 12" to 15" the bottom of the box above the floor but for the disabled you can install them higher but no more than 48" above the floor. Pick a height that will work for the disabled and install all of them the exact same height.

What size wire for 28 amps?

User Avatar

Asked by Wiki User

Minimum size is 10 gauge with a 30 amp breaker. To be safe I would install an 8 gauge with a 40 amp breaker.

What is livelihood program?

User Avatar

Asked by Wiki User

Usually a livelihood program is working with underdeveloped countries to improve their ability to make money and improve their standard of living. It is usually done in conjunction with some sort of established program.

How old do you got to be to work at the goodwill?

User Avatar

Asked by Wiki User

well everyone is saying that you need to be at least 16 but you can ask next time you are at goodwill.

Why do you want to work well with others?

User Avatar

Asked by Carrieanna

Working with people is always good experience, especially when you work with teams then you gain lots of things. And it gives you experience to deal with different kind of personalities and behaviors.

How do you wire two light fixtures?

User Avatar

Asked by Wiki User

The lighting fixture should have all of the bulb's leads brought to a central point in the fixtures junction box. All of the black wires from the bulb's socket will be tied together. The same applies to the white wires from the socket.

The white wires are tied into the lighting circuit's white neutral wire and the black wires are all connected to the "hot" supply wire. Once these connections are made, the fixture can be bolted to the ceiling junction box.

How do you get rid of an electrical outlet?

User Avatar

Asked by Wiki User

Just make it a junction box. Remove the outlet, tie the blacks together under a wire nut. The the whites together under a wire nut. Tie the ground wires together under a wire nut. Push all the wires back into the outlet box and cover it with a blank cover. Paint the cover the same color as the wall. Do not sheet-rock over the outlet box. All junction boxes must be accessible.

What size wire for 250 amp service with a 175 foot run?

User Avatar

Asked by Wiki User

4/0 (4 ought) in copper will handle 250 amps. The voltage drop at 175 ft. is about 2.14 volts which should be okay.

The ampacity of NO 12 aluminum wire with RHW insulation installed in a raceway that has 19 other wires is what?

User Avatar

Asked by Wiki User

A #12 copper conductor with an insulation factor of 90 degrees C is rated at 20 amps.

A #12 aluminium conductor with an insulation rating of 90 degrees C is rated at 15 amps.

These conductors ratings only applies to three conductors in a raceway. To apply the derate to the conductor requires the size of the raceway.

From 7 to 24 conductors in a raceway, both aluminium and copper conductor's ratings have to be reduced by .70, so 15 amps x .7 = 10.5 amps and 20 amps x .7 = 14 amps respectively.

Where can one purchase an aluminum conduit?

User Avatar

Asked by Wiki User

One could purchase aluminum conduit at home improvement retailers such as Home Depot, Lowe's or Rona. One could also order it through a wholesaler such as American Conduit.

What is conduit fitting?

User Avatar

Asked by Wiki User

Conduit fitting is used on metal pipes that house electrical wires. These fittings are not only to connect the various pieces together, but to keep a relatively water tight seal to the wires.

How do you identify start and run windings of a motor?

User Avatar

Asked by Wiki User

The run winding of a single phase capacitor start motor has a lower resistance than the start winding.

What is the correct wire size to install with a distance of 200 feet for a 100 amp single phase underground service?

User Avatar

Asked by Hanalei47

This is a voltage drop question. A #1 copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 200 feet on a 240 volt system. Or

a 3/0 copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 200 feet on a 120 volt system. In your question you sis not stipulate what the working voltage is.

What makes a circuit breaker go bad?

User Avatar

Asked by Wiki User

A circuit breaker can go bad from being tripped too many times. Many people don't understand that the tripping of a circuit breaker indicates a problem that needs to be corrected. They usually just reset the circuit breaker, leading to a very common second (or third, or fourth) trip. Circuit breakers tripping are for the prevention of fire due to excessive heat in the circuit. They're not supposed to be tripped repeatedly. This can wear the breaker out. Believe it or not, I've also seen circuit breakers fail to re-energize after being turned off. I speculate this was actually caused by the breaker never having been cycled (it was a main breaker), and the time elapsed since it was installed. Electrical equipment doesn't last forever. It's the same as anything else.

What size breaker do you use for a 100 amp sub panel?

User Avatar

Asked by Wiki User

A 100-A sub-panel would be fed from a 100-A breaker.

How many electrical outlets per wall?

User Avatar

Asked by Wiki User

In most rooms they must be spaced no more than 12 feet from each other. In kitchens, they should be spaced about 4 feet from each other.

What is the point of grounding your house?

User Avatar

Asked by Wiki User

All electrical distribution systems require a system earth ground for personnel safety. The ground for your home electrical system is likely a grounding rod, a 10 ft. copper clad steel rod driven into the ground and then bonded with a brass clamp and large bare ground wire to your panel. This provides a path to ground to dissipate errant current which can occur due to a circuit which "shorts out." Better it goes to ground than into you!

Can you put breaker panel in a bedroom?

User Avatar

Asked by Wiki User

Yes.

But the NEC requires that your first disconnect be installed as close as practical to where the service enters the building. So if the bedroom isn't where the service enters the home, you will have to install a stand-alone disconnect where it does and then wire to your panel.

How do you tell a positive wire from negative wire?

User Avatar

Asked by Wiki User

A Discussion has been started about this Question and Answer.

To add your own comments please click on the 'View Discussion' button below these Answers.

=== === <><><> If you needed to ask this question here, one of the most important things you must learn is how to use an electrician's multi-meter correctly and safely. This is one of those questions... If you know this little, you shouldn't be planning to do what you are planning... No disrespect intended, but this is SO basic that it suggests you have not studied the subject at all! There are many good reference books and course books to study from. === === <><><> This question is not as easy to answer as you may at first think. It all depends if you really know what you mean when you say "a positive wire" and "a negative wire". Are you asking about an AAA cell or are you asking about mains voltage alternating current? So take the advice given above and learn how to use a multimeter - safely - to measure voltages and currents used by electrical items or systems. Some of them use direct current power supplies, such as dry cells or batteries; other things use alternating current power supplies such as 120 Volt or 240 Volt power mains. You really need to know about both types because none of them are safe to play with, not even the simplest dry cell or battery. If you want to ask this type of question again please be sure to say: * exactly what type of electrical item or system it is that you want to know about

and

* where those wires are on (or in) the item or system that you are curious to know about which wires are positive or negative. Then someone may be able to help you by giving you a more specific answer.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

If you do this work yourself, always turn off the power

at the breaker box/fuse panel BEFORE you attempt to do any work AND

always use an electrician's test meter having metal-tipped probes

(not a simple proximity voltage indicator)

to insure the circuit is, in fact, de-energized.

What size aluminum wire needed for 60 amp at 240 volt for 330 feet underground?

User Avatar

Asked by Wiki User

A 1/0 AWG aluminium conductor will limit the voltage drop to 3% or less when supplying 60 amps for 330 feet on a 240 volt system. The cable will be rated as ACWU 90. ACWU 90 cables are primarily intended for exposed and concealed wiring in dry or wet locations and where exposed to the weather. For use in ventilated, non-ventilated, and ladder type cable trays in wet and dry locations; direct earth burial; service entrance above or below ground.