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Electrical Wiring
Ask questions here about proper wiring and electrical installation here.
4,935 Questions
What is a residual current detector?
It is another name for a GFCI (Ground Fault Circuit Interrupter) which is the name used in North America for an RCD (Residual Current Device) as it is known in Europe and elsewhere in the World.
For more information take a look at the page reached by the Related Link - and the answers to the Related Questions - which are shown below.
What is the electrical impedance of air?
Electical impedance of air is just under 377 Ohms. It depends on humidity and other factors. Dry air is close to free space.
Scroll down to related links and look at "Characteristic impedance of free space ".
Your dishwasher every time you plug it in and turn it on it trips the gfci circuit?
There could be a a ground-to-neutral fault somewhere in the appliance, its cord or its plug. For more information click on the Related Question link below.
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The breaker is not ampere rated high enough for the dishwasher. The dishwasher is miswired. There is a problem in the dishwasher electricals that told the GFCI to save your life.
What is a Reverse current relay?
A reverse current relay prevents a generator from discharging the battery when generator output is less than battery voltage. When generator output is greater than battery voltage, the reverse current relay closes and connects generator to electrical bus.
How to fit a new light switch to old wiring in the kitchen?
MAKE SURE FUSE IS REMOVED OR CIRCUIT BREAKER TRIPPED! This is quite simple. Unscrew and remove the template. Unscrew and PULL OUT the switch. As long as this NOT a 3-way switch, Unscrew, UNCURL, and remove wire wrapped around BOTH screws, then unscrew, uncurl and remove grounding screw (bare wire) and remove old light switch. Fully unscrew bolts on new switch until they stop. Strip both covered wires to reveal 1" of bare wire. Bend bare wires (all) to look like a hook. With completely bare grounding wire, wrap hooked end around the green screw with the wire end sticking out on the lower right side. Do this with the rest of the wires. Fully tighten all screws. Push excess wires back into outlet and firmly secure switch to outlet. Replace and secure template. Replace fuse/flip circuit breaker back on. Try switch. Light should respond WITHOUT FLICKERING. If light flickers, turn off power and check for loose connections on the switch. Resume power AFTER problem is solved. <><><>
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 many watts for a 15 amp fuse?
That depends on the voltage you use. If there are 120 volts, the power equals voltage times amperage. 120 volts times 15 amps = 1800 watts. Cheers ebs
Cu is the chemical symbol for the element copper. Copper is a ductile metal with high thermal and electrical conductivity, commonly used in electrical wiring, plumbing, and construction materials. It also has antimicrobial properties and is an essential nutrient for humans.
Physically you won't be able to cut this wire that is in place, insert a box and re-splice it. To make a legal splice in an electrical box you have to have 6 inches of wire protruding from the box. This extra wire allows you enough length to splice with wire-nuts and add pigtails to accommodate the switch. Remember all splices in electrical wire have to be made in a junction box. Most electrical fires are started at poor connections and that is why junction boxes are used to contain a fire if it starts. <><><> As you asked this question here, the best advice anyone can give you is to check with a local licensed electrician or your local electrical safety authority to find out for sure what the wiring code in your locality (town/state) says about doing this change to your household AC wiring.
The wiring codes and regulations are much stricter in many countries these days - some codes make it illegal to do this kind of work if you are not a licensed electrician in any room area or space which is likely to get water spray or splashes, such as a bathroom, shower room, laundry, pool area or similar. : 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.
How do you read breaker box amps?
The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
Why a current wire deflects a magnetic needle placed near it?
A current wire deflects a magnetic needle placed near it because the current wire is creating an electric field. If the current is supplied from an AC (alternating current source as opposed to DC which is direct current- AC would be from a wall socket, DC from a battery), then the current is constantly changing, so the electric field is constantly changing.
A changing electric field results in a magnetic field perpendicular (90 degrees) to it. It is actually the magnetic field that is changing the needle direction, because that needle is trying to follow the magnetic field lines (similar to those that you see when you put iron filing near a magnet).
How do you make a light bulb light up using a 1.5 volt battery?
If it is a 1.5 volt bulb you can connect it through a series circuit directly to your battery.
If the bulb is not made to run on 1.5 volts and needs another voltage, it may not light up!
What gas is used inside a light bulb?
Argon gas is commonly used inside incandescent light bulbs to prevent the filament from oxidizing and burning out. It helps to prolong the life of the bulb by reducing the evaporation of the filament material.
Which color is a ground or earth cable i.e. is it brown blue yellow red green or black?
The answer depends on the electrical wiring standards of the country you are asking about.
Answer for USA, Canada and countries using similar 60Hz household electricity supplies: the ground or "earth" cable is just bare wire or has green insulation.
Answer for countries in Europe and in other world areas which use similar 50Hz household electricity supplies: the earth or "ground" cable has yellow/green striped insulation. (Older earth wiring in the UK may still have bare wire or green insulation.)
For more information see the answers to the Related Questions shown below.
The best advice anyone can give you is to call a licensed Heating, Ventilating and Air Conditioning technician to discuss exactly why you think it might make sense to convert this air conditioner unit to run on 240 volts instead of 110 Volts.
He or she would also ask you about the make, model and power of the particular unit which is the subject of this question, and discuss the idea with you.
Without having those details this question is impossible to answer.
For more information please click on the Related Questionshown below.
What is Indian electricity rule for earthing?
The Indian Electricity Rules mandate that all electrical appliances and equipment must be grounded to ensure safety. The earthing system should comply with established standards to prevent electric shocks and to protect against power surges and faults. Regular inspections and maintenance of the earthing system are required to ensure its effectiveness.
Geothermal energy is the energy source that transforms heat energy from the Earth into mechanical and electrical energy. This process involves harnessing heat from beneath the Earth's surface to generate power through the use of geothermal power plants.
What type of current comes from the outlets in your home?
Alternating Current (AC), which means it changes from positive to negative at a frequency of 50 or 60 cycles per second. In USA, Canada and other countries which use similar standards for mains electricity supply, the voltage coming into the house is usually an average of 240 Volts AC. This is split into two, with a common neutral wire, so that 120 Volts AC is the voltage supplied from most ordinary socket outlets. Some high powered appliances, such as kitchen stoves or ranges, water heaters and dryers, run at the full 240 Volts. In Europe and many other countries the alternating current changes from positive to negative at a frequency of 50 cycles per second. The voltage coming into the house is usually an average of 230 Volts AC and that is what is supplied from most ordinary socket outlets. As in the US system, high powered appliances, such as kitchen stoves or ranges, water heaters and dryers, also run at 230 Volts.
Difference between static electricity and dynamic electricity?
There are two types of electricity; dynamic and static electricity. The main difference between these two types is that in static electricity, the electrons do not move but in dynamic electricity, the electrons move either in changing directions or in one direction.
How is mixing pigments different from mixing light?
Mixing pigments is subtractive. Mixing light is additive. Let's take the primary pigments, red, blue and yellow. Red pigment is red because the chemical it is made of absorbs (subtracts) blue and yellow light that falls on it and reflects only red light to your eye. Similarly, blue pigment is blue because it absorbs red and yellow light and reflects only blue.
So when you mix the three primary pigments together, you produce something that absorbs all of the light falling on it in equal amounts and reflects nothing to your eye. Thus, it appears black.
In contrast, when you mix only red and blue light, there isn't any yellow in it, so the resulting light appears purple (the complement of yellow). Likewise, if you mix red and yellow light it appears orange (the complement of blue). If you mix all three colors of light together (in equal amounts), the resulting light appears white because it contains all of the "colors" of the spectrum. This explanation is sound, although greatly simplified.
Sky Becker is not cool like mohamad : )
How long does a fiber optic light last for?
Light, fiber optic or otherwise does not disappear. It travels and keeps on traveling until something stops it. point a fiber optic into the sky and it goes until it is stopped by something. The question, "How long does fiber optic light last for" has only one answer, forever.
Can you give an example of a gas used as an insulator?
Sulfur hexafluoride is an example of a gas commonly used as an insulator in high-voltage electrical equipment due to its excellent insulating properties and high dielectric strength.
Compare conductor and insulator?
Conductors and insulators are different and simalar in many ways.Two ways they are simallar are they both have electrons and have something to do with electricity.Three ways they are different that conductors let heat and electricity go through it .On the other hand insulators do not let heat or electreicity go through it easily.Another way is conductors transfer eelectrons easily but meanwhile the insulator psses on electrons with difficulty.One last thing is that conductors are not current but insulators are current. HOPE I HELPED YOU
Does silver nitrate conduct electricity?
Yes, silver nitrate in a solid state does not conduct electricity because it is an ionic compound. However, when dissolved in water, silver nitrate dissociates into silver ions (Ag+) and nitrate ions (NO3-), allowing it to conduct electricity as an electrolyte.
What materials are insulators?
There are many materials that are used to insulate.
If the idea is to keep sound energy from entering a building steel springs, or rubber blocks, can be placed between a mechanical device and the building structure, or a fiber type insulation can be placed inside an air duct to keep the sound of the air in motion from being transferred to the building. Cloth sections are placed between metal duct work and a large centrifugal fan to stop sound transfer and/or vibrations from being transferred to the duct.
Porcelain or specially formulated epoxies are used to insulate high voltages from the ground. Special plastic or rubber-like material is used to insulate electrical wires.
Fiberglass bats, closed cell foam, cork, or even ground up paper are used for thermal insulation.
Almost any solid material, flexible or rigid, can be used to insulate from light.
Color of mains supply Neutral wires?
"White" in US, Canada and countries with similar 60 Hz systems. "Blue" in Europe and countries with similar 50Hz systems. (However "Black" is also commonly installed in UK but this is part of obsolete wiring regulations/wiring code.)
