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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.

500 Questions

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

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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.

How do you determine if a breaker switch is bad?

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Asked by Wiki User

You replace the breaker to see if that fixes the problem. There simply is no other practical approach.

There exists testing equipment that will do this but it is much too expensive for general use.

What size wire for 28 amps?

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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.

Why do you want to work well with others?

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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 connect a 3-wire stove to a 4-wire outlet?

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Asked by Wiki User

Answer for USA, Canada and countries running a 60 Hz power supply service.

In order to plug your 3 wire stove into a 4 wire outlet, the easiest way to do so is to change the cord on the stove. This does not require cutting power to the outlet or anything like that.

Anyone who is going to be changing the power cable on any device knows that you need to unplug the cord first, eliminating the need to cut power to the outlet.

The difference between a 3 prong and 4 prong outlet is the ground wire. Both provide 240v power by supplying 2 120v wires (red and black). There is also a white wire, which will be your neutral wire.

The green wire is your ground, and should be bolted to the body of the stove. (Most appliances have a location for attaching the ground wire).

When connecting your wires, there should be 3 wire locations. You should connect one of the two hot wires (red or black), then your white wire in the middle, and then your other hot. The green will be your ground.

Height of kitchen outlet box above counter top?

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Asked by Wiki User

In the USA, most kitchen counters are 36" high. This measurement was standardized many years ago when the average heighth of a female was less than it currently is. They can be set to suit your own tastes (so that you need not bend so much when doing dishes). ie., my counters are 40" high.

How to split 220 volt into two 110 volt?

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Asked by Wiki User

Answer for USA, Canada and countries running a 60 Hz supply service.

Before an explanation of how to do this you should keep in mind that this is for a single receptacle only. If any other receptacles are on the same circuit they will also be changed to 120 volts.

The existing two pole breaker in the distribution panel that is to be replaced should not have a larger rating than a 15 or 20 amps. The wire size from that breaker will be #14 or #12 respectively. The final results of this project will leave you with a 15 amp 120 volt receptacle and one spare 15 amp breaker in the distribution panel.

That said, OK, any 240 volt outlet can be changed to 120 volt by removing the white wire from the 2 pole breaker and inserting it into the neutral bus bar. Remove the other wire (probably black) from the breaker. Remove the 2 pole breaker from the breaker panel. Install two single pole 15 amp breakers into the hole left by the 2 pole breaker. Leave both of these breakers turned off.

Connect the black wire that came off of the 2 pole breaker on to one of the new single pole 15 amp breakers. Re install the cover to the electrical panel, this end is finished. At the old 240 volt receptacle, remove the existing device and install a new 120 volt receptacle.

Materials can be purchased at local building supply store. Remember to take the electrical panel data with you so you have the information for the 2 new breakers. Once you have the new 120 volt receptacle installed, identify on the electrical panel door what the breaker is used for. Leave the unused breaker in the off position. Turn the new 15 amp breaker on. Turn the main breaker back on. Test the new receptacle with a lamp to make sure every thing is OK.

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.

How to install new bath taps?

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Asked by Wiki User

It is possible to buy a kit to 'repair' taps. These can be purchased from any good DIY shop and basically consist of a new tap valve and knob. The main body of the tap can be left where it is and the brass valve unscrewed and replaced, fitting the new knobs on top.

If you do decide to go the whole hog and replace the taps:

If your bathroom is upstairs, drain the pipes using all the taps both in the bathroom and downstairs kitchen - helps to fully drain the pipes, thus preventing any water surging back up.

There will be a metal nut securing the water pipe/flexible connector to the tap. Unscrew this first - make sure you hold on to the tap to stop it turning. To unscrew the nut you can use a spanner/plumbers grips/wrench. When you have removed that nut you can then remove the larger plastic or metal nut that holds the tap onto the bath or basin. Again, be sure to hold the tap.

When replacing the taps just do the above in reverse order. Make sure that you remeber to put a rubber or fabric washer in between the bottom of the threaded tap pipe and the water pipe/flexible connector.

How do you wire two light fixtures?

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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.

What is halo 1's rating?

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Asked by Wiki User

Halo 1 is rated M for mature.

Edit by Dreirot: If you look in the back pages of Halo: The Fall of Reach, you will see an ad that says it's rated T

________________________________________________________________

  • BBFC: 18
  • ELSPA: 15+
  • ESRB: M
  • OFLC: MA15+
  • PEGI: 16+

Any mature kid should still be able to play it no matter his age :P

_______________________________________________________________

How do you get rid of an electrical outlet?

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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.

How many 50 watt lights on a 15 amp circuit?

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Asked by Wiki User

50 watt equals less than 1/2 amp current flow at 120 volts so you can have 30 light on a 15amp breaker or 40 on a twenty amp breaker.

How many amps does a paper shredder draw?

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Asked by Wiki User

As with most small appliances, the wattage used will be on the equipments nameplate. Along with this information you will also find the operating voltage and the equipments operating frequency.

What is the purposes of splicing wire?

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Asked by Wiki User

The purpose of splicing wire is to extend the wiring to further the distance of the circuit. A main feeder from a distribution panel can be spliced to supply voltage to more that one circuit. This is a money saving procedure as each separate circuit does not have to be brought back to the distribution panel. In underground direct burial feeds that have been dug up by a back hoe, a splice is the only way to restore power short of installing new cable. Special underground splice kits are used to restore the insulation factor of the cable, which usually leaves the cable with a better insulation factor at the break than that of the original cable insulation.

How do you wire multilple power outlets and light?

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Asked by Wiki User

Power into the first outlet and out to all other outlets, black to gold and white to silver screw, ground wires to ground screw. From the outlet closest to the light switch run power from that outlet up to the switch box. Run another wire from the switch box up to the light. In the switch box tie all the whites together under a wire nut and push them back into the box. Tie all the ground wires together and connect that to the ground screw on the switch. Connect the 2 black wires you have left to the 2 screws on the switch. Does not matter which if you only have power in and power out to the light.

Which is the hot wire red or white?

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Asked by Wiki User

In the US, if you only have a black wire (ungrounded or hot conductor) and a white wire (normally a grounded conductor or neutral) there is not a ground wire. Sometimes the white wire is used as a hot, so each wire would have to be identified.

<<<< Electrical work should only be done by a qualified electrician.>>>>

How do you control 2 lamps with two way switch?

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Asked by Wiki User

A 3way switch at each location is what you use, but it must be wired properly to work. You must have incoming power at one switch location and no power at the other location. The other location has the wire going up to the light. You then need a 3 conducted wire such as 12/3 or 14/3 running between the switches. Use the same size wire you used to power the switch and top up to the light. You then connect the black power wire at one location to the black screw on the switch, and at the other location you connect the black wire going to the light to the black screw on that switch. At each location tie the whites together under a wire nut and shove that back in the box. Tie the grounds together and connect that to the ground screw at each switch. At each location you will now have the black and red wire from the wire you ran between the switches left. Those are called travelers. Connect those wires to the remaining 2 screws left on the switches at each location. Does not mater which you connect to which screw. Assuming no other wires are involved this is how you wire it.

Can I use a 30 amp fuse instead of a 40?

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Asked by Wiki User

This is not a good idea to do. Sometimes just that little bit of extra current that the 45 amp fuse will allow to reach the 40 amp load might be enough to destroy the device.

How many electrical outlets per wall?

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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?

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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!

How do you tell a positive wire from negative wire?

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Asked by Wiki User

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=== === <><><> 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.

Are t8 bulbs being discontinued?

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Asked by Wiki User

No they are controlled by an electronic ballast. It's t12 and magnetic ballasts that are phased out

Is L1 white or black wire?

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Asked by Wiki User

In most circumstances and electrical schematics L1 is black and L2 is white. L1 is usually the "hot" wire and L2 is the "neutral".