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Short circuits cause extreme amounts of electrical and mechanical stresses on equipment. Equipment that will regularly carry 100amps of current can be exposed to thousands of amps of current. Transformers explode, lines vaporize, poles start on fire, etc. if short circuits are not removed as soon as practical.

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Q: Why must short circuits be opened instantly?
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Can essential circuit combine in one conduit with normal circuit?

The use of the words "essential circuit" implies that you are refering to the requirements of the NFPA electrical standard, aka NEC, which is commonly enacted as law in many USA jurisdictions (but not everywhere).The 2005 NEC discusses "essential circuits" as part of the Health Care Facilities, chapter #517The "essential" system is subdivided into 2 subsystems:EMERGENCY and EQUIPMENTThe EMERGENCY system is subdivided further into two sub-sub-systems:LIFE SAFETY and CRITICALSections 517.30-B and 517.30-C cover this topicThese sections require that the EQUIPMENT circuits not be mixed with the EMERGENCY circuits (either life safety or critical). EQUIPMENT circuits can be mixed with NORMAL circuitsThe LIFE SAFETY and CRITICAL circuits also must be kept separate from each other and from NORMAL.There are a few exceptions to the above basically relating to where different circuits meet at equipmentThere is another related requirement that states the LIFE SAFETY and CRITICAL circuits must be in rigid metal raceways (no flex, no PVC). The equipment circuit does not have to be.These are important distinctions. Please be certain to read and understand the code before proceeding.


What are electrical circuits?

In general, electrical circuits refer to the pathways or routes that are used to deliver electric power onto the power grid and out to the site where a customer actually uses it. It's possible to say the electric power grid is a large electrical circuit. It is. We can use terms like wire or lines or conductors when we talk about the power grid. You already know that there are transformers, circuit breakers (disconnects), fuses and other "stuff" in the circuits. An electrical circuit could be any subsystem of the larger whole. The electrical circuits in a residential structure could be all the wiring from the meter and breaker panel to all locations in the home. The electrical circuits of your home can be described this way. An electrical circuit could be a subsystem of a piece of equipment that helps an observer differentiate it from another subsystem. In a TV, for example, the video circuits are electrical circuits that are separate from the audio circuits. Each is a distince electrical circuit in this light, and someone like, say, a repair technician will be looking in the audio circuits to see why your TV has no sound rather than in the video section. The two electrical circuits are distinct in this light. We could go on, but this may cover the basics acceptably.


How do you install a capacitor?

It gets hooked up like a switch would be. The main power wire goes to the positive side on the cap and a short power wire comes off of the positive side of the cap to go to the amp. Ground comes from car metal to the negative side of the cap and a short ground comes off of that negative to go to the negative on the amp.


Are indoor times faster than outdoor times?

generally indoor times are slower because indoor tracks are smaller. this means that you must complete more circuits to get the same distance on an indoor track. so, there are more turns to run, which slows people down.


How do you go about appealing the termination of parental rights?

You need an attorney who specializes in custody issues and the appeal must be filed within a short period of time after the judgment. The court can advise you of the time period for filing an appeal from the judgment.

Related questions

What are 2 protective devices used to open a circuit?

The GSR plug is the newest device to perform this function. It becomes a mini circuit breaker for the circuit and is critical for high risk areas such as kitchens and bathrooms.The basic circuit breaker is another device. It opens the circuit when the amperage exceeds the rating of the breaker. It is a device that can be reset.The electrical fuse is the eldest of the devices. The disadvantage is that it must be replaced when the circuit is opened by overload.Circuit breakers and their cheap alternative, fuses, are used to disconnect the power if an excessive current flows.


Do you have to refrigerate velveeta before it is opened?

No. It is ultra-pasteurized , but once opened, must be refrigerated.


Does a series circuit always use one battery?

Any circuit may use as many power sources as you wish. For DC circuits you must maintain the same polarity. For AC circuits you must synchronize frequency and match voltages.


Is an Eulerian circuit traversable?

Yes. Because Eulerian circuits are a subset of Eulerian trails, all Eulerian circuits must be traversable since, by definition, a Eulerian trail is traversable.


What condiments must be refridgerated?

Any opened jars or bottles.


Can you shoot a 308 in a long action rifle?

If the rifle is chambered for the .308 Winchester cartridge, then long or short action can safely fire it. Long or short refers to how far the bolt travels when opened. The .308 is typically a short action- the 30-06 and longer cartridges cannot cycle thru a short action, and must be used in a long action rifle.


Can you short sale your house to your spouse?

A short sale must be approved by the lender. It will not approve your proposal.A short sale must be approved by the lender. It will not approve your proposal.A short sale must be approved by the lender. It will not approve your proposal.A short sale must be approved by the lender. It will not approve your proposal.


A court decision in Ohio in the Sixth Circuit must be a followed by all other circuits?

FALSE.


Feeders which supply continuous-duty circuits must be derated to what percent of the load served?

80


What is the design procedure for clamping circuits?

Clamping circuits use diodes and capacitors. First, the first circuit must be set up, then a?æsine wave should be input into it. The input and output should be observed and adjusted as necessary; then, the process should be repeated for the other circuits.


Why must the I.S.S. have electrical power and insulation from temperature extremes?

The electrical circuits are affected by the magnetyic energy from space, so the circuits of the space station need to be iunsulated against magnetic energy.


Is must a short or long vowel?

The word "must" has a short vowel sound. It is pronounced as /mʌst/.