What would you like to do?
How dangerous is it to rig a main electrical breaker?
Have the utiliy company diconnect the power.
Good advice except they will probably cut your drops, and you will be without power for an extended period, especially if they are busy. Call a qualified electrician, they will most likely be able to give you some options, and prices over the phone at no cost. To be direct ELECTRICITY IS VERY DANGEROUS, and is best left to the trained and qualified who are familiar with the hazards it presents.
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A circuit breaker is a device use in series with the load in many electrical application, residential, commercial end industrial. The power needs to be on in order for this pr…otection device to function. A circuit breaker is in reality a mechanical device that can turn power off when an overload occurs, but a person has to tun it back on when the overload has been clear.
Yes, they can become defective.
We work as a team. Every one has a job and we relies on the other person to do what is right. We hold safety meetings. We all have a Safe Work Practice Program in place. We al…l train to get off the platform if we lose control. We have Fire Fighters and Rescue Trained personal on board all the time. We have Coast Guard or a way to get you in if you get hurt. There are so many fail safe safety devices in place to protect the environment and personal. We spend 8 months out of the year together on a platform that morn time than with our wives's. Wouldn't want to work anywhere else. You are in more danger getting to work than on a platform. People on a every day to day life don't have safety in mind 24 hrs a a day.
Two main reasons: - voltage - batteries usually(but not always) have such a low voltage that they can't push a dangerous current through a human body. … - muscle interaction - Batteries are DC (direct current) while mains are AC (alternating current). And AC current will cause the muscles to spasm and lock, so if you were to accidentally grasp something electric, it'll be really hard to break free. But don't get this wrong. If you know what you're doing, it's entirely possible to kill yourself with nothing but a 12-volt battery.
Answer for USA, Canada and countries running a 60 Hz supply service. Yes. The NEC requires that your service disconnecting means be as close as practical to where the servic…e conductors enter a building. In a home, your service disconnecting means is the main breaker in the panel. If you choose to move your panel away from the closest practical location, you must install a separate disconnecting means and make your grounding conductor, grounded conductor (neutral), and grounding electrode conductor (conductor to your ground rods) bonds within that enclosure. You must then isolate your grounding conductor and grounded conductor (neutral) everywhere else. This is where the confusion arises because in homes we are used to sharing the same set of terminals for the ground wires and neutrals. In this type of installation you must have a ground bar which is bonded to (usually just connected to) the panel enclosure for your ground wires and a separate set of terminals for your neutrals that is isolated (insulated) from the panel enclosure. 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.
A circuit breaker is a safety device that is put in an electrical circuit. When something fails, or shorts out, the circuit breaker "senses" the excessive current and au…tomatically opens (or breaks) the circuit. They are used in homes, as well as some electrical devices. They are different than a fuse in that a circuit breaker can be reset. A fuse on the other hand, has to be replaced once it opens up. I hope this helps you. for more info, here is a web page about circuit breakers: Ciruit breakers
Answer for USA, Canada and countries running a 60 Hz power supply service. No offense, but usually the people who ask this question don't know enough to do it safely. Y…our best bet is to hire a competent electrician. I know they cost money, but that's because they get the job done safely (or they should). That being said, if you would like to attempt this yourself, you should get yourself 2 references: National Electrical Code (whichever revision is in use in your locality, check with the office in your city that issues building permits)- This is essential to do any electrical work safely and properly, and you're going to want to do that. In most cases when installing an electrical panel, the power company will not connect (or reconnect) power to your new panel unless it has been approved by a local electrical inspector. Code Check Electrical- This handy guide is excellent for those unfamiliar with electrical work. It will specifically highlight commonly missed requirements for a code compliant installation. These are for sale at your local Home Depot or large bookstore. Whatever you do, when installing feeders from the meter base to the panel, do it properly by contacting the power company to disconnect your service. Too many do it yourselfers and even electricians have decided to install panel feeders by simply pulling out the meter to disconnect power. This will only disconnect power to one side of the meter. If the live side shorts, it will cause a fire and burn the power company's lines clean through. Please be safe and coordinate your panel installation with the local building authority and power company. 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.
Most dryers for clothes require a 30 amp 220 volt breaker.
To reset a breaker move the handle completely to the off position. If it had tripped you will feel a little resistance as it goes to the off position. If this doesn't restore …the power the breaker is either bad and in need of replacement, or there is a persistent fault in the circuit causing the breaker to immediately re-trip. Breakers are safety devices.
Electric Shock And Fire
You need to say what voltage the heater is running on (it's different in different countries).
A simple explanation The action of a circuit breaker is in some ways very similar way to the action of a fuse: if the flow of current going through it gets too high to be safe…, the circuit breaker automatically stops the flow of current. How a fuse works: A fuse is a safety device to prevent excess current in the electric circuit.It consists of a thin metal wire with a low melting point in a glass causing. When an electrical appliance is faulty or ground fault exists, there will be an excessive flow of electric current through the circuit and this produces a large amount of heat. A fuse has a fuse rating: if the electric current is over a certain value, its thin metal wire melts and breaks the circuit in order to protect the electrical appliance - and its service wiring - to help prevent a home fire. After a fuse burns out, we have to replace that fuse with a new one. How a circuit breaker works: When an electrical appliance becomes faulty or ground fault exists, excess electric current would flow through the circuit and produce a large amount of heat. A circuit breaker also has a rating: if the electric current is over a certain value,the circuit breaker will "TRIP" (disconnecting power) automatically to break the flow of current in order to protect the electrical appliance - and its service wiring - to help prevent a home fire. A circuit breaker is more convenient to use than a fuse because you only need to switch it "OFF" then back to "ON" to reset it, so you don't normally have to replace it like you would have to replace a fuse. A more technical explanation Most circuit breakers operate on two principles. First, current flow through the breaker heats a bi-metallic element. The more current, the more heat generated. at a certain temperature, the bi-metal element bends, tripping the breaker. This detection element catches overloads that are just slightly more than the breaker's rating. It takes anywhere from a few minutes to several tens of minutes to trip in this mode. The second detection method is magnetic. Current flow through the breaker flows through a small magnetic coil. At a certain threshold, the magnetic field is strong enough to move the trip arm, tripping the breaker. This detection method is almost instantaneous, and is usually set for a very large overload. Many breakers combine these two methods into one breaker. Others, typically used for large electric motor protection, will use one or the other. There are also specialized breakers designed to detect fault current to ground, called GFCI (ground fault circuit interruptor) and arc-flash breakers. A circuit breaker is nothing but a mechanical device which holds the input and output contact together through a mechanical lock made with anti spring action. when a heavy current flows a coil which is placed in parallel in the circuit create a magnetic effect sufficient for releasing the spring lock, that makes the contact to open so no voltage passed to output.
you can get a electric shock if you mess around with mains electricity!
The purpose of a circuit breaker is to protect electrical wiring from overheating and starting fires.
You need to know what you are doing installing an electric panel box where breakers are located. If it is a main panel you would have to turn off power to the house. This is d…one by removing the electric meter. You have to know about wire sizes, how to make connections and other things. If you are trying to replace an existing main panel the wires are often not long enough and you have to either extend wires insode box or in satellite boxes. If you are installing a subpanel to an existing box you need to provide proper cable between boxes. You also have to bond the grounds to box in a specified way when multiple boxes are used. It is best to study a how-to book and ask specific questions. This can be very dangerous work if you don't know what you are doing. You can either kill yourself on the buss bars or burn down the house with faulty design. If you have any doubts about an answer check the bio of the person giving the answer to see if they are qualified to give an answer. 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.
If your breaker is sparking it could be loose on the bottom center where it connects to the busbar. The wire going out to the circuit could be loose under the screw terminal. …Your breaker should not spark under normal usage. If it continues to spark, you should replace it. When turning off a breaker you are interrupting the flow of current in the circuit, which would create a spark, because the current wants to continue flowing. However, the spark is contained inside the breaker where you cannot see it.