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Posts Tagged ‘Electrical safety’

The Working Of A Circuit Breaker

June 11th, 2010

Often, the faulty circuit is responsible for the electrical short-circuits which in turn damages the costly home appliances. A circuit breaker plays a vital role in preventing such a loss. Circuit breaker is a device that shuts off the power supply on account of an error in any of the electrical circuits.

Everybody knows that when current flows through any substance including a wire in our case, it generates heat. The amount of heat produced is directly proportional to the amount of current flowing. Also, flowing current from a wire creates a magnetic field around the conducting medium. Higher the current flow, more is the magnetic field. These are the two basic principles of modern day circuit breakers.

Circuit breaker has a switch-like handle which enables you to interact with the breaker device. The switch can have as many as four positions: ‘On’, ‘Off’, ‘Tripped’ and ‘Reset’. It is not difficult to find the on and off positions but tripped and reset positions are a bit complicated to switch to. To trip the breaker, you need to switch the handle in the middle of the ‘on’ and ‘off’ position. Moreover, it can be marked red as well for easy interface. To reset the breaker, glide down the switch towards ‘off’ position gently and a clicking sound authenticates the resetting of the breaker.

Before you reset and turn on the breaker, follow some safety tips mentioned below. If it is turned off already then it indicates that something has gone wrong inside the home. Hence, do not switch on the breaker before fixing the concerned problem. If you continue without repairing the fault, the breaker can trip again. As a temporary solution, you can plug out the appliance from the main supply.

The internal circuitry of a breaker resembles the circuitry of an ordinary switch in your home. Toggle handle, levers, springs etc. play an important role in the internal working of both the devices. Similar to a regular switch, breaker also consists of a bimetallic switch that determines the increase in heat.

Circuit-breakers are convenient because they have same current ratings as fuses. However, the difference is that one can use breakers over and over again by resetting them.

A circuit breaker provides you the luxury of using your appliances without any headache. Moreover, they protect your appliances even when you are sleeping.

Circuit-breaker not only saves you money but also protects your valuable electrical appliances.

Scott Rodgers is a fine expert who has been authoring on electricians contents for a long time now. His unique guidance has given motivation to a host of workers, ranging from Marble Hill Electricians (Need one? click here!) to Wellesley Electricians (Need one? click here!).

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What Are The Electrical Testing Tools ?

June 11th, 2010

Electrical testing equipments allow an electrician to understand the causes of the common electrical problems. They are used to obtain relevant information from the electrical fixtures or appliances that are under test. This information may be in the form of signals or some readings. Some of these testing tools are mentioned below.

An analog multi-meter is considered quite significant in the regular scheme of things. It is used to measure the voltage, current, resistance, frequency and signal power of a circuit. It can measure electrical potential in volts, current in amperes and resistance in ohms. Common problem of short-circuits can be found with the help of an analog multi-meter.

Second testing equipment in the list is a digital multi-meter. It possesses a good wiring diagram and an effective multi-meter is capable of finding the cause of any electrical problem. A digital multi-meter provides you with one of the most crucial features, ‘accuracy’. Accuracy is crucial when you are testing the equipments for voltage, current and resistant. This is one reason why digital meters are preferred over the analog ones.

Data logger is a device that is used to record various data values at different instances of time. It also has a built-in sensor that can test the cause of the electrical problem.

Insulation tester is used to test the consistency of the windings or cables in electric motors, switchgears, transformers and other electrical setups. Next device is a power quality analyzer. This device is used to gauge electrical power signals. It also proves handy in supporting the load’s ability to function appropriately with electrical power. It takes count of the various factors such as AC voltage, AC current and frequency.

An electrical meter test equipment is used to test the exact quantity of energy recorded (which is generally measured in kilowatt-hours or cubic feet). Also, it keeps track of the energy supplied to all the business/residential areas.

Before buying any of these testing tools, study the consistency and effectiveness of each one of these as costliest is not always the best. Choose a brand offers guarantee of replacement if the purchased tool malfunctions under the guarantee period.

The performance and the credibility of an electrician enhances drastically with the assistance of these electrical testing tools or equipments.

Scott Rodgers is an author with vast experience all over the nation. His amazing authoring of contents has immensely helped a lot many electricians from Gilbert Electricians (Need one? click here!) to Los Gatos Electricians (Need one? click here!).

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Procedure To Repaint Your Old Refrigerator

June 9th, 2010

An old refrigerator unit disturbs the beatification scheme of your home to a large extent. If you do not have enough money in your pocket to buy a new refrigerator then you can opt for a repainting job. You can repaint your refrigerator on your own without hiring any professional. You would need a special paint to complete the paint job with conviction.

First thing to understand is that you are not required to change the backside color of the refrigerator because it is black by default. Black color is used on the backside because it complements the operation of the coils in radiating energy. You only need to paint the top, front and sides of the refrigerator.

Now, you need to choose a color of your choice for the new paint job of your refrigerator. Go to a reputed local home improvement store and explore the varieties of the paint you want. This paint type is special because it can resist heat and cold without peeling off. Also, the paint comes either in a spray bottle or in a regular box allowing the users to choose their own comfort level.

Clear off stains, dirt and smoke from the body of the refrigerator and smoothen the surface of the refrigerator to make it conducive for a paint job.

If there are any scratches, nicks or traits of rust on the external surface of the refrigerator then tackle them first. Use a sand paper to scrub them off such that a smoother surface is attained. Do not hurt the paintwork around the nicks and scratches.

Before commencing the paintjob, put some masking tape on the areas which fall outside the scope of the paintjob. Use special masking tape for concealing such units of the refrigerator. Standard masking tape is much stickier than the specialized mask tap. Also, mask the rubber seals located on the top, bottom and sides of the refrigerator’s body.

Read the manufacturer’s instructions written on the paint-box and start painting your refrigerator. Once the paint dries off, remove the masking tape to release the new look of your refrigerator.

A novice can also repaint the refrigerator by following these simple tips.

Scott Rodgers is an author with ample experience all over the country. His superb authoring of contents has greatly helped a lot many electricians from Gilbert Electricians (Need one? click here!) to Los Gatos Electricians (Need one? click here!).

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Troubleshooting: Common Air-Conditioner Problems

June 8th, 2010

People do not care about the maintenance of their electrical fixtures until they start giving real troubles. When the appliances start creating problems, homeowners leave the issue to a licensed professional without apprehending the intensity of the concerned problem. Homeowners can diagnose the issue to determine its intensity. A particular problem could be an outcome of a number of factors.

One of the common issues with an air-conditioner is the unavailability of cold air. Here, the point to understand is that there may be different reasons responsible for a particular fault. Most often, a clogged filter that is located at the front of the machine prevents the AC from blowing cold air. Due to dirt, the filter gets clogged and the condenser fins are not able to breathe freely.

The dirt from the air filter can also settle over the condenser fins and in that case, the fins are not able to work at their maximum efficiency. There are special brushes available in market for cleaning the filth and dirt from the condensers.

If the working efficiency of your machine decreases dramatically within a month or week then the Freon pressure inside your machine is held responsible. The pressure range for Freon is between 65 and 70 PSI. To check the level of Freon pressure, you need a pressure gauge. If the pressure is low then avoid refilling on your own as Freon can be dangerous when inhaled. Certain agencies offer their services to refill your Freon reservoir at a moderate amount.

In case the thermostat is set to a low level and you are not getting cold air, look for the condenser fan’s motor. Due to burnt-out or loose wires, the fan motor stops its normal routine work.

If you have a split type air-conditioner installed and the outside unit is not working then it may be accredited to a burnt condenser fan. For safety reasons, the outside unit of the air-conditioner should be repaired by a licensed expert only.

If the inside unit is running well with an abnormal outside unit then it is due to an overheated condenser in the outside unit of the machine. Machine stops functioning due to an increased temperature.

To maintain the normal operation of an electrical appliance, regular inspection is mandatory.

Scott Rodgers is an expert with ample expertise all over the country. His remarkable experting of contents has immensely motivated a lot many electricians from Bridgeport Electricians (Need one? click here!) to Bellevue Electricians (Need one? click here!).

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Easy Way Of Replacing The Old Electrical Wires

June 5th, 2010

If you are encountering frequent troubles with your electrical fixtures then the outdated electrical wirings may be held responsible. To estimate the right time for refurbishing your electrical wiring, take into account the operating time of the wires. The operating time must not exceed 20 years in any situation. The average life span for standard electrical wiring is around 18-20 years.

Besides replacing the wires every 18-20 years, you should also take care of the schema at regular intervals. Inspection at regular intervals would make sure that that the wire reaches it’s maximum without suffering any wear and tear. To replace the whole electrical wiring of the home, you can employ a licensed electrician to do the job. Do not try to do the job on your own as incomplete knowledge could lead to a possible electric hazard.

Replace your old wires as soon as they achieve their specified age. You should also replace the electrical wires if they don’t appear as efficient as they used to.

A little knowledge about the important parts of the electrical fixtures would be an added advantage for the members of the home. Consumer units, switches etc. are the electrical fixtures that every member of the home should be aware of. Consumer unit is responsible for the distribution of electricity to the panels installed in the home spaces. MCB or Miniature Circuit Breaker is used to protect the costly appliances from electrical faults.

Miniature circuit breaker cuts off the power supply to the defected circuit. Due to this cut off of the power supply, your costly appliance doesn’t suffer any damage.

Before doing all the electrical and other risky works, arrange the safety gloves, goggles and other necessary safety equipments. Safety kit is a very important aspect of the project.

If you don’t possess even the basics of electricity then leave the task of replacement to the professionals. Electricity would not hesitate giving you a fatal shock.

Always wear protective gears before commencing the electrical work as electricity can put you in trouble.

Scott Rodgers is a fine expert who has been authoring on electricians contents for a long time now. His unique guidance has given motivation to a host of workers, ranging from Phoenix Electricians (Need one? click here!) to Lockeford Electricians (Need one? click here!).

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Specifications For Replacing A Fluorescent Bulb

June 2nd, 2010

Long ago, you did not have enough choices when it came to the replacement of a fluorescent light bulb. However, modern day market is flooded with a huge variety of fluorescent light bulbs. Such a huge variety makes it difficult for a novice to choose the appropriate replacement fixture. In order to replace a light bulb in correct manner, you have to follow certain guidelines.

Fluorescent lighting fixtures are long tubes that come in various weights. Nowadays, they are also available in U shapes and circular shapes. The U-shaped tubes are commonly used underneath the cabinets with ballast at one end. In case of circular bulbs, they are used in sockets.

Fluorescent bulbs are used for providing bright, white and glaring lights. They are available in vast colors and in different shades of white.

Replace the old fused bulb with exactly the same sized new fluorescent bulb. Also, take care of the wattage limit of the bulb. Never try to replace the old bulb with a bulb which can exploit the maximum wattage. Doing this will support overheating in the ballast and the possibility of fire would increase.

Among the main parts of the fluorescent bulb, a bulb holder, ballast, a switch and a starter are quite significant. While the holder is responsible for holding the bulb in place, switch is responsible for turning on and turning off the bulb. Ballast and starter provide the necessary electric current to the bulb that ionizes the gas inside the bulb to illuminate the bulb.

How can you determine the appropriate time for the replacement of a fluorescent light bulb? Answer to this question is quite difficult as fluorescent bulbs do not show any signs of ‘burn out’ like in incandescent lamps. When one side of the light becomes darker than the other, it may be the time to arrange a replacement.

If you are not aware of the condition of the ballast then try checking the bulb or the tube in the other working ballast or socket.

Before changing the fluorescent light bulb, turn off the main current supply. Now, unscrew the bulb or push the tube to one side and pull it down and out. Similarly, put the replacement tube or bulb inside the socket. Do not try to fit the tube into ballast forcefully as it can spoil the ballast.

Scott Rodgers is an author with ample experience all over the country. His unique authoring of contents has immensely helped a lot many electricians from Denver Electricians (Need one? click here!) to Dublin Electricians (Need one? click here!).

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How To Replace A Light Switch In A Safe And Correct Manner ?

June 2nd, 2010

If your bulbs are flickering and the replacement of the bulbs is not working out fine then the problem may be in the light switch. With time, the durability of the light switch reduces leading to a timely deterioration. Most homeowners avoid hiring an expert for such a task due to the cut-throat prices. With some simple and easy tips, you can also replace your light switches with ease.

Have a thorough look at all your switches and mark the switches that need to be replaced. Do not try to unscrew straightaway.

Before you proceed ahead, study the different types of switches. There are three types of switches, a single pole switch, a three-way switch and a four way switch.

Tools play an important part in the successful completion of the project. Hence, equip yourself with several tools like voltage testers, screwdrivers, notepad etc. Notepad comes in handy when you forget a particular wiring connection or scheme. Hence, draw a detailed diagram of the locations and colors of the wires while unscrewing the plug.

Now, turn off the main supply of the current and unscrew the cover plate of the light switch using the a screwdriver. Put the screws and the cover plate aside.

Switch off the main current supply and detach the cover plate of the light switch with the help of a screwdriver. Place the screws and the cover plate safely in a convenient location.

Test the switch using the voltage tester for the accuracy of the switch. With the help of electricity tester, test the supply of electricity. Now, unscrew the light switch from the wall box slowly. Unwire it and note down the sequence of the order of wires.

Install the new switch in place of the old switch and connect the wires. Switch on the main power supply and test the working of the switch before replacing the wall-light switch cover.

Scott Rodgers is an author with vast experience all over the country. His remarkable authoring of contents has greatly helped a lot many electricians from Denver Electricians to Dublin Electricians . Get a totally unique version of this article from our article submission service

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Maintaining A Microwave Oven

May 31st, 2010

Would you prefer an expert to repair the common problems of your microwave? If no is your call then you would be required to complete the repairing work on your own. At some stage, most homeowners may encounter some problems related to microwave. Some of them can be fixed by a novice if proper guidance is provided.

One of the most common problems associated with the microwave is of the replacement of the door handle. Though it seems to be pretty easy but it needs soft and gentle hands. The screws holding the handle in place are placed underneath a trim and this trim is held in place by a tab. Now, use a putty knife to take apart the trim from the door of the microwave. Be careful such that the trim and tab remain in tact. When trim is removed, the screws are wide-opened and you can unscrew them to replace the handle easily.

If the food inside the microwave catches fire and the microwave stops working then search the flame thermostat safety switch. This switch is encapsulated in every microwave nowadays. The function of this switch is to stop the working of the microwave in case something inside the microwave catches fire.

When replacing the bulb of the microwave, make sure to turn off the power supply. This step before the replacement of the bulb is very important to keep yourself and the smart board of the microwave safe.

In case the microwave is arcing during its operation, turn off the device to prevent any further damage. The arcing inside the microwave is a result of the food that is sticking in and around the wave guard area. This arcing of microwave can be stopped by keeping the microwave clean and dirt free.

If the microwave display screen is counting down and the inside light is also glowing, but it is not heating then check the door switch of the microwave. You can check the switch using an ohm-meter. Beforehand, discharge the current using a metal screwdriver which has an insulated handle. Now, attach the probes of the ohm-meter to the end of the wire while setting the scale to the lowest scale. If the needle hardly moves in the display of the ohm-meter then your switch is faulty and needs to be replaced.

Always make sure that the microwave is switched off before you start to work on its wirings.

Follow these simple steps to easily resolve the common problems associated with a microwave oven.

Scott Rodgers is a great author who has been authoring on electricians contents for a long time now. His exemplary guidance has given motivation to a bunch of workers, ranging from Marble Hill Electricians to Wellesley Electricians.

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Use Solar Power To Run Your Portable Devices

May 13th, 2010

Solar batteries store the solar energy from the sun inside them to use that energy at a later span of time. Solar batteries get charged through a solar panel. Actually, solar panel charges the internal battery pack that can be used when needed. The market is full of different kinds of solar batteries and panels. Make sure that you get the best quality product at cheapest price.

You can use the smaller version of these batteries to provide power to your portable devices like cell phones, laptops, PDA etc. With these solar charged batteries, you can run the rechargeable electronic devices for hours. Most of the batteries come with universal connectors which allow the batteries to be used with a number of electrical or electronic devices.

Some of the solar chargers provide you with the facility of an extra holder for a standard battery. With the help of this battery holder, you can charge a set of standard Nickel Cadmium (Ni-Cad) batteries. When they are fully charged, you can employ them to work again. You just have to put a set of discharged batteries into the unit and put the whole unit or the solar panels against the sun. Your batteries would again be recharged for reapplication.

Larger solar panels and batteries can be used for providing power to mobile homes, boat etc. You have to install these large solar panels on the flat roof of the vehicle or the boat. The solar panels would start charging the bank of deep cycle batteries when the sun is shining brightly. When the batteries are fully charged, they can be used to power up your electrical equipments.

These solar-batteries can also be used during camping or for a remote cabin. The idea is same but the difference is that the solar panels are portable and are connected to a controller unit. Controller unit holds the batteries and charges the batteries using the solar panels with the help of sunlight.

You can carry the fully charged batteries with you wherever you want. Some of the batteries come with a feature that offers recharging facility for both 12V D.C. and standard 120V A.C. power.

Solar energy can also be used for homes. However, the solar panels need to be quite big and you need extra number of deep cycled batteries so that you can continue enjoying power even in the absence of sun.

Use solar power to keep the planet greener and cleaner.

Scott Rodgers is a fine expert who has been authoring on electricians contents for a long time now. His unique guidance has given motivation to a bunch of workers, ranging from Raynham Electricians (Need one? click here!) to Hadley Electricians (Need one? click here!).

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Disadvantages Of Using Microwave Oven

May 11th, 2010

The invention of microwave oven has certainly reduced the effort and time spent by people in the kitchen while making food. It makes the task as simple as it could ever be. By using microwave oven, you can avoid those tricky situations that you face in case of usual cooking methods. You do not need to stand in front of the frying pan all the time to monitor it. Like everything else, it also has some threats and disadvantages associated with it.

The most adverse effect of a microwave oven is that it superheats the liquids. The actual problem occurs when this superheated liquid is perturbed. Superheated liquid along with the disturbance are sufficient to trigger troubles. On any disturbance, the superheated liquid can burst off with force. Due to this superheating phenomenon, people recommend not to heat the infant milk using microwave. The bottle from outside looks fine and gives a false impression about the actual temperature of the milk inside the bottle. Moreover, some people believe that microwave treated milk loses its goodness.

There are facts which prove that microwave alters the molecular formula of the food. Molecularly changed food is deficient in quantity and quality of the nutrients. Eating such type of altered food can cause some serious irreversible diseases like cancer.

People also believe that if microwave can heat up the food so quickly then all the bacteria and germs cannot be killed. According to them, it is impossible to kill all the microscopic germs in such short span of time. They prefer not to eat such type of food as it can give you some critical diseases.

According to many of the peoples, microwave oven significantly alters the molecular formula of the food. This change in molecular formula decreases the nutrient quantity and quality of the food as well. In many cases, they blame microwave oven for diseases like cancer, poisoning etc.

People believe that radiation emitting from the microwave oven can also prove fatal. Most of the people believe that such radiations can cause infertility, hormonal imbalance, sleep disturbance etc.

People are concerned due to the fact that eating micro-waved food can affect the hemoglobin level. Besides decreasing the hemoglobin level, it also harmfully affects the cholesterol level.

Above mentioned facts are just like an index of the book. Majority of the people are not aware about these facts.

Scott Rodgers is a great writer who has been authoring on electricians contents for a long time now. His exemplary guidance has given motivation to a host of workers, ranging from Bryant Electricians to Murfreesboro Electricians.

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