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Electrical Wiring
Ask questions here about proper wiring and electrical installation here.
4,935 Questions
How do you bypass vats system?
VATS is usually a GM (General Motors), system for helping prevent vehicle thefts.
There are several different procedures depending upon the year and make of the vehicle. Search the internet for "VATS Bypass".
I bypassed the vats on a 1996 Buick by accessing the wiring diagram for the VATS. I measured the resistance of the key chip. There are 15 different values it can be. It is simply a resistor. In this case, the chip measured 3000 ohms. I went to Radio shack and got a combination of resistors that would give me 3000 ohms. There are 2 wires that come out of the VAT module and go up the steering column to the key switch. I located the VAT module behind the glove box. I cut those two wires and soldered the resistors in so that the module always saw 3000 ohms. You have to solder the resistor on the module side, not the key side.
480 transformer to 120 ac current what is the kva on transfomer?
The kVA rating will be listed on the transformer's nameplate, which is usually on the front of the transformer. The 480v to 120v is irrelevant, because many transformers with different kVA ratings convert 480 volts to 120 volts. The kVA ratings can be different and thus affect the rated current through the transformer.
How much energy does a lamp use?
well it depends on the type of lamp but it should say on the packaging
How much electrical energy does the average American require per day?
How much electrical energy does the average American require per day ? How much electrical energy does the average American require per day ?
Electric shock is caused by a difference in conduction of electricity across different surfaces. Electricity will always find the path to ground (or the completion of a circuit) that offers the least amount of resistance. When any object providing less resistance than the normal circuit enters the path of the electrons, the current will leave the circuit and travel through the new path to ground. This principle is why birds can stand on electrical wires and be safe, yet a downed electrical wire can be deadly for several hundred feet in all directions. Electricity dissipates in various and unpredictable ways. If you have a difference in voltage from one place to another, and there is a circuit completion (a wire, a finger) in between, current will jump across. Electric shock is not the state of being electrically energized, that can be totally harmless if controlled; it is the state of completing a circuit, or bridging the gap between conductors.
The terminology used in the electrical field is EMF. It is Electro Motive Force, in other words voltage.
Your electricity meter seems stuck?
energy meter is a mechanic device. as every mechanic device it is subject to fatigue, and may fail.
But generally, this is not such a bad news. In most cases, malfunction cause the energy meter to slow or get suck. what happens to the energy bill? you guessed it.
Turning off or unplugging electrical fixtures which saves more money?
Turning off an electrical fixture is a good way to save money, but unplugging it is better. Since you turned off the appliance, and not able to unplug the cord, still it will consume some electricity. So when you unplug it, you save more money!
How far should a scissor-lift be kept from power lines?
As far as possible! Here are the OSHA requirements. If the voltage is unknown stay 18 feet away. 13,000 - 69,000 volts10 feet115,000 - 138,000 volts11 feet230,000 volts13 feet500,000 volts18 feet This is no joke, the current will arc to equipment too close to the lines, and may make it near impossible to rescue the equipment operator. It's like being struck by lightning.
Why battery consists more negative plates than positive plates?
Every battery has 2 electrodes: anode and cathode. Battery always consists of 2 electrodes. So number of positive electrodes and negative electrodes is always the same.
The lead acid cell can be demonstrated using sheet lead plates for the two electrodes. However such a construction produces only around one ampere for roughly postcard sized plates, and for only a few minutes.
Gaston Planté found a way to provide a much larger effective surface area. In Planté's design, the positive and negative plates were formed of two spirals of lead foil, separated with a sheet of cloth and coiled up. The cells initially had low capacity, so a slow process of "forming" was required to corrode the lead foils, creating lead dioxide on the plates and roughen them to increase surface area. Initially this process used electricity from primary batteries; when generators became available after 1870, the cost of production of batteries greatly declined. Planté plates are still used in some stationary applications, where the plates are mechanically grooved to increase their surface area.
Faure pasted-plate construction is typical of automotive batteries. Each plate consists of a rectangular lead grid alloyed with antimony or calcium to improve the mechanical characteristics. The holes of the grid are filled with a paste of red lead and 33% dilute sulfuric acid. (Different manufacturers vary the mixture). The paste is pressed into the holes in the grid which are slightly tapered on both sides to better retain the paste. This porous paste allows the acid to react with the lead inside the plate, increasing the surface area many fold. At this stage the positive and negative plates are similar, however expanders and additives vary their internal chemistry to assist in operation. Once dry, the plates are stacked with suitable separators and inserted in the battery container. An odd number of plates is usually used, with one more positive plate than negative. Each alternate plate is connected.
The positive plates are the chocolate brown color of Lead(IV) Oxide, and the negative are the slate gray of 'spongy' lead at the time of manufacture. In this charged state the plates are called 'formed'.
One of the problems with the plates is that the plates increase in size as the active material absorbs sulfate from the acid during discharge, and decrease as they give up the sulfate during charging. This causes the plates to gradually shed the paste. It is important that there is room underneath the plates to catch this shed material. If it reaches the plates, the cell short-circuits.
The paste contains carbon black, blanc fixe (barium sulfate) and lignosulfonate. The blanc fixe acts as a seed crystal for the lead-to-lead sulfate reaction. The blanc fixe must be fully dispersed in the paste in order for it to be effective. The lignosulfonate prevents the negative plate from forming a solid mass during the discharge cycle, instead enabling the formation of long needle-like crystals. The long crystals have more surface area and are easily converted back to the original state on charging. Carbon black counteracts the effect of inhibiting formation caused by the lignosulfonates. Sulfonated naphthalene condensate dispersant is a more effective expander than lignosulfonate and speeds up formation. This dispersant improves dispersion of barium sulfate in the paste, reduces hydroset time, produces a more breakage-resistant plate, reduces fine lead particles and thereby improves handling and pasting characteristics. It extends battery life by increasing end-of-charge voltage. Sulfonated naphthalene requires about one-third to one-half the amount of lignosulfonate and is stable to higher temperatures.
About 60% of the weight of an automotive-type lead-acid battery rated around 60 Ah (8.7 kg of a 14.5 kg battery) is lead or internal parts made of lead; the balance is electrolyte, separators, and the case.
What is the Importance of Magnetic Energy?
Modern life as we know it would not be possible without magnetic energy. It is used to generate and distribute electrical power for our homes and factories (generators and transformers). It is used to perform work (motors). It is used in telecommunications (telephones, televisions). The computer you typed your question on could not function without it (switching power supply). It is used to diagnose medical problems (MRI). The ignition system in most cars uses magnetics to provide the spark to run the engine. There are literally hundreds of uses of magnetic energy, these are just a few! Earth's magnetic field allows us to navigate by compass, but more importantly protects us by deflecting harmful radiation. Oh, and how could we live without those handy little refrigerator magnets that we use to stick notes to the fridge?
The formula you are looking for is R = E/I. Resistance = Volts/Amps.
How are batteries connected together to obtain more current capacity?
A way of connecting batteries together to provide more current is to connect them in parallel. This allows more capacity at the same voltage. If the batteries were connected in series the voltage would be increased.
How did writing help civilization to flourish?
Writing helped civilization to flourish in many different ways for instance it helped communication to get to different places.Writing is still used today in many different ways including newspapers,traffic signs,etc.
What is the difference between 2 core and 3 core wire?
A two core cable is used where an earth is not required. A three core cable is used where an earth is requred. Specialised three core cables are available for 3 phase and two-way switching applications.
How many amps does an automotive fuse box generate?
None. The amps (current) comes from the battery and/or the alternator. The fuse box merely distributes this current to various loads such as lights, ignition, electronics, etc. The total current available is governed by the size of battery and charging system. The amount of current available on a single circuit is governed by the size of the wire and the rating of the fuse you plug in. One or the other will eventually melt if too much current is drawn. If you have the proper fuse in place, it will always melt first, protecting the wire.
What is lumens per watt could you give a brief definition about lumens per watt?
Luminous efficacy is a figure of merit for light sources. It is the ratio of luminous flux (in lumens) to power (usually measured in watts). As most commonly used, it is the ratio of luminous flux emitted from a light source to the electric power consumed by the source, and thus describes how well the source provides visible light from a given amount of electricity.This is also referred to as luminous efficacy of a source.
2. Next, strip of about 1-2 inches of the plastic insulation. If there is a small "rip-cord"- a small piece of stranded wire or cotton used to protect the cord from being ripped in half- cut it, we won't be using it.
3. You should now have 2 wires, also, if there is a material like tin foil inside, you can cut it with scissors, its just a bit more insulation. If you have 3 wires, or if the wires are very thin, you should get a higher quality audio cable that has reasonably thick wires inside.
4. Next, If you are going to make this a permanent installation- you won't be using the speakers for anything else-, slip some heat-shrink tubing over the cord you cut and stripped. If you are going to be using the speakers for other uses, still put the heat shrink over the wires, but go to step 5 B. Otherwise, continue to step 5 A.
5. A. Using a nine volt battery, check the polarity of the speaker wires, or follow the wires to and from your speakers and mark each wire with a red and a black wire to denote negative and positive. Solder the respective wires to each other, go to step 6.
B. You will need to be able to solder for this. Using quick disconnects,
solder a 1 female connector to each wire from the speaker. Solder male connectors to the audio cable you stripped and solder male connectors to whatever wires you connected the speaker with before.
6. If you do not have a heat gun, you can improvise and use a butane lighter to carefully activate the heat shrink. Make sure it covers all exposed contacts you soldered on.
7. If you have a multimeter, great, else, improvise with a 9 volt battery. Use the continuity test on the multimeter to make sure you didn't do any cold solder joints.
8. Whenever you want to use the MP3 player or whatever with the speakers, connect the cord you made. Every other time, use the connectors you soldered on.
What is the electrical voltage of a home service panel?
Either 110 v or 220 and 110, depending on how your house is wired.
If a series circuit has a 12 v battery what is the current flow?
You'd need to know either the resistance or the wattage of the circuit. Ohm's Law: Current = Voltage divided by resistance or Current = Power divided by Voltage
What are the elements of solar power plant?
There are several elements of solar power plant. Some of them include parabolic mirrors or reflectors, thermal collector that stores heat and many more.
Why do you need a 125 amp breaker for a 83 amp furnace?
If you put a 85 amp breaker in there it will overheat from the starting and stopping of the motor. The extra size of the breaker insures that the furnace will run without interruption and without overheating the breaker. And electric motor can draw three times the amperage rated on start up momentarily. This is why there is need of extra amperage ratings.
