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Electrical Wiring

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4,935 Questions

What is a difference in electric charge called?

The chemical gradient refers to the imbalance of substances across the membrane. The Electrical Gradient refers to the difference of charges between substances on different sides of the Membrane. The Electrochemical Gradient refers to the combination of the previous two gradients. The short answer is MEMBRANE POTENTIAL.

How do power technicians work safely with electricity?

Power technicians work safely with electricity by wearing protective gear such as gloves, goggles, and insulated clothing. They follow strict safety procedures, including de-energizing equipment before working on it, using lockout/tagout procedures, and testing circuits to ensure they are de-energized. They also receive extensive training on electrical safety practices and are aware of potential hazards to minimize risks.

What is the proper height to mount a switch or receptacle in operation rooms?

Most areas in the US must comply with ADA, the Americans with Disabilities Act. This means switches and other devices with operable controls go 48 inches AFF (above finished floor), measured to the switch handle (which means to the center of the box). This is the maximum height permitted by ADA. Receptacles don't seem to have a real standard, I have seen from 12 to 18 inches where I work. If there are existing recepts in the building, we match those. At my house, for instance, they are set 12" to the top of the box.

120 volts equals how many amps?

There is no conversion. They measure different things. It's like asking 120 miles equals how many pounds?

Voltage is also called electric potential. In a water analogy it's like pressure.

Amperage is also called electric current. In a water analogy it's like flow rate.

Can an electric discharge occur quickly or slowly?

An electric discharge can occur quickly or slowly depending on the conditions and the amount of energy involved. For example, a lightning strike happens quickly, while the discharge in a fluorescent light can be slower.

Can you blow a breaker box?

Not if it is designed and installed properly. Even if you overload a circuit, the most that should happen is a tripped breaker. Panels are designed such that even fault current from a direct short, which can be tens of thousands of amperes, will be safely interrupted. All bets are off however, if the panel has been tampered with or improperly designed or installed.

What changes electrical energy into chemical energy?

Electrical energy can be changed into chemical energy through a process called electrochemical reactions. This conversion occurs in batteries or fuel cells where electrons flow through a circuit, creating a chemical reaction that stores or releases energy.

Where is 130 volt electrical power used?

You're looking at 130v light bulbs? Well...the answer is "nowhere." A 130v light bulb has a heavier-duty filament in it than a 120v bulb does, so the bulb will last longer. Put it in a regular socket and it will work fine.

What material is the best conducter of electricity?

Silver is concidered the best conductor.

Aluminum and Copper are also superb conductors.

Gold is not actually a very good conductor, but is primarily used in computerchips because of its mallability and resistance to corrosion.

This does however not exclude the fact that a superconductor made from other materials are actually better. This just a short list considered best at normal temperatures.

What is an electrical three line diagram?

An electrical three line diagram is a simplified representation of a three-phase power system showing the interconnection of power system components using lines to represent conductors. It is commonly used by engineers to quickly understand the configuration and operation of complex electrical systems.

You are changing a light fixture but the wires are all the same color which one is the hot wire?

Typically, in a standard electrical wiring setup, the hot wire is black or red, the neutral wire is white, and the ground wire is green or copper. If the wires are all the same color, you can use a voltage tester to identify the hot wire. Be sure to turn off the power before working with the wires.

What are some different types of electrical circuits?

Some different types of circuits are:

  • open
  • closed
  • parallel
  • series

There are two types of basic circuits, series and parallel.

In series, current stays constant and voltage is divided amongst the resistors.

In parallel the voltage stays constant, Every branch of the circuit gets the same voltage from the power supplier, but there is different current in every branch but current doesn't get lost. Current entering a junction(branches) must equal to current out of the junction. Iin =Iout.

The third type could be the Series-Parallel Combination, which has some components wired in series and other components in parallel. Solving these circuits requires more complex analysis techniques. See related link.

Another Answer

Electrical circuits are generally classified as being: (1) series, (2) parallel, (3) series-parallel, and (4) complex. The term, 'complex' is a category into which any circuit that doesn't fall into the first three categories, is placed.

What is device that demonstrates the presence of static electricity is called?

A device that demonstrates the presence of static electricity is called an electroscope. It can detect the presence of static charge by showing the divergence of its two metal leaves.

How do you dead test a lighting circuit?

disconnect the supply cable from cu and join the phase and neutral together then go to ur light switch and provided that he circuit is complete with ur bulbs in do a continuity test on the switch cable live in and switch live out these should beep out if the circuit is comple meaning there will be continuity at the switchh cables

What is the difference bw kwh and kw why we need to consider kwh reading than kw reading for power consumtions?

KW, or kilowatts, is a measure of instantaneous power. KWH, or kilowatt-hours is the power used over time.

Suppose I have a light bulb. It is a 100 watt bulb. You are going to build a small power station to supply me with power. Now, a 100 watt bulb is 0.1 KW, since 1 KW is the same as 1000 watts. Say you buy a little gasoline generator and some fuel to run it. Lets say you decide to charge me one dollar per KW.

I turn on the light bulb for one minute. You measure 0.1 KW on my meter, so you charge me 10 cents ( $1.00 per KW * 0.1 KW = $0.10). Well, ten cents is not too bad, after all, you only had to supply power (and buy fuel), for one minute.

I turn on the light bulb for a week. You again measure 0.1 KW on my meter, so again, you charge me 10 cents. Do you see a problem with this? KW is simply how much power it takes to light the bulb. It has nothing to do with how long you run it. You will quickly go broke supplying me with power.

So, we need to have something that accounts for the time power is supplied. That's what kilowatt-hours do. If I run my 100 watt bulb for one hour, that's 0.1 KWH. If I run it for 5 hours, that's 0.5 KWH, 100 hours is 10 KWH, and so forth.

Now suppose you again agree to supply me with power. This time though, you decide to charge me one dollar per KWH.

I turn on the bulb for one hour. The KWH is 0.1 KW * 1 Hour = 0.1KWH. You charge me $0.10.

I turn on the bulb for a whole day. The KWH is 0.1 KW * 24 Hours = 2.4 KWH. You charge me $2.40.

Ah, much better. Now, the longer you have to run the generator and supply me with power, the more money you will get. If I change my bulb to a 200 watt, you will need more fuel to run your generator, but you will get more money. If I run the bulb longer, you will also need more fuel, but you will also get more money.

That's the main reason power companies primarily bill for KWH used. For commercial customers, it gets a little more complex, but that's another question!

What amp do you need for a hairdryer plug?

A hairdryer typically requires a 10-15 amp circuit to operate safely. It's important to check the wattage of your hairdryer and divide it by the voltage of your outlet to determine the amp requirements. Be sure to use a properly rated outlet and circuit to avoid overloading and potential fire hazards.

Can i get a diagram of the neutral and the ground lines at the home distribution box?

The only place they are tied together is at the Service Entrance panel. They must not be mixed up anywhere else, or it will defeat the safety factor the ground wire provides. 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 a meter or voltage indicator

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

How does a contact switch work?

A contact switch works by physically connecting or disconnecting two metal contacts when an object applies pressure or movement to the switch. This change in contact state is used to control the flow of electrical current in a circuit, triggering actions such as turning on a light or activating a device. Contact switches are commonly used in various applications, including push-button controls and door sensors.

What you basically want is will each phase take 26 Amps current for 15HP 3 phase 415VAC motor?

Yes, for a 15HP 3-phase 415V AC motor, each phase will draw approximately 26 Amps of current when running under normal operating conditions. This results in a total current draw of 26 Amps per phase for the motor.

What noble gas gives off an orange-red color when electricity is passed through it?

Neon gas gives off an orange - red color when electricity is passed through it.

What can be distinguished between the primary and secondary sources?

Primary sources are original materials created at the time of the event or historical period being studied, while secondary sources interpret or analyze primary sources. Primary sources offer first-hand accounts of events, while secondary sources provide analysis, interpretation, or commentary on primary sources.

What do you call a fuse with two black wires attached?

A fuse with two black wires attached is typically called a "black wire fuse." The black wires serve as the connections for the electrical circuit, with the fuse serving to protect the circuit from overloading or short circuits.

Where is Fluorescent light wiring diagram?

Fluorescent light fixtures typically have a wiring diagram on the label or inside the fixture. The diagram will show how to connect the wires for the ballast and the tube sockets. It's important to follow the wiring diagram carefully to ensure the correct installation and function of the light fixture.

The differences between a series circuit and a parallel circuit?

In a series circuit, electrons flow through all the components one after another. If one fails (break), the whole circuit is no longer live. All the resistances are also added up in a series circuit. The current (measured in amps) is the same throughout the whole circuit.

In a parallel circuit, electrons flow through smaller circuits all coming from the same source. The amperage is different in each circuit based on the resistance offered. The one wire running to all the smaller circuits has higher current than any of the small offset circuits. Removing one thing will not affect the other smaller circuits as electrons can still flow. Current will be affected, of course.

Why the superconductors you have today are expensive and uncommon?

Superconductors today are expensive and uncommon due to the high cost of producing and maintaining the materials at very low temperatures required for superconductivity, often using liquid helium or nitrogen. Additionally, the complex manufacturing processes involved in creating superconductors add to their cost and limit widespread availability.