Rahul Tiwari

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Top 10 Electrical Safety Rules:

Electrical Safety Rules:

As we know that how to use electrical things but there is more about to learn the electrical safety rules that must be strictly observed.

Please read these instructions and this will help you and your family safe around the home, and also how to avoid the electrical accidents and fires:

                                       Electrical Safety Tips

1 Always turn off the electric appliances and games when they are not in use. Make it a habit before going to the bed ,check the all electrical devices and switches are shut off or not.

2  To prevent shocks and cut off power this is the easy way to get rid from just add a residual current device. Second sensible option is you can fix one of the fuse box. Another way is  you can take a movable one, that is best for the outdoor work like using the vacuum cleaner or  lawnmower .

3 Do not overload the sockets. The safe method is always use one plug in each socket. Even if there is adaptor you are using always make sure that it has a fuse on its bar type. Do not cross the specified rating/limit of the adaptor.

4 Never keep leads or wires under the carpets where they remain hide. Besides being the hazard thus is very hard to see bunch of the wires or cables.Electrical Safety Precautions is Very Important When Working With Electricity

                                                    Electrical Safety

5 A good idea is keep an eye regularly on the condition of the sockets and plugs. You must pay attention to the frayed and burnt wires on the appliances. The best way just fix such problems by the professional electrician .

6 Do not place the electric cables or wires to chain over the kitchen appliances such as stove tops or toasters .These all are very harmful and are dangerous of the worst kind. Also, do not  never finger on the toaster or electric appliances with anything, especially with the any metal.

7 Always avoid mixing electricity and liquids. They must be kept as far as possible. Do not touch your appliances with wet hands always touch with dry hands only. Do not place the liquid or water on top of electrical appliances. This is very dangerous if liquids spill into the slots. And also do not fill it up when kettle plugged on. .

8 Never  stick in nails or Do not try to make the holes in to the walls of your house. This will become more dangerous because you may not know that what’s the behind all of your point of entry. And you must also take care while you’re excavating or digging as you will run the risk of cutting the all live underground cables or wire.

9 Avoid to taking the  major electrical appliances into the bathroom. Regularly check the wire coding on to the appliances such as hair strengtheners ,hair dryers or radios that are mostly used in the bathrooms.

10 Always make sure that after coming from the rain or swimming pool do not allow your children to walk in wet into the home directly. Your home is the only place where all  electrical sources available . Before entering the house get dry them completely.

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                             Male To Male Massage Service In Delhi

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You must aware about the worst electrical hazards in your home.

You must aware about the worst electrical hazards in your home. So that you could save yourself. The most electrical hazards are given below

(1)POOR OR FAULTY WIRING:

You must confirm all of your home wiring for safety standards. Because of the poor wiring, The risk can be increase such as of power surges ,fire and other serious problems. Always avoid the electrical task ,do not do-it-yourself and just call to a professional electricians to perform all these electrical wiring around your house. You must need to replace and update the all old and faulty wire.

(2)OUTLETS ALONGSIDE TO THE WATER:

The Outlets that is closely to the water need to be installed with a reasonable distance and away from the water such as water Outlets In kitchens ,baths and the other living spaces Do not use the radio, phone ,hair dryer or the other devices near the pool, in the bath ,or anywhere at a wet floor.                                                                                          

(3)WET HANDS:

Do not handle the electrical appliances with the wet hands ,this will increase the risk of getting an electric shock. Do not wet your hands before using the hairdryer.

(4)DO NOT MIX CHILDREN AND THE HOUSE ELECTRICITY 

As we know the young children experience the electric shock most often when they poke the metal objects or bite into the electrical cords like knives or forks into the unprotected appliances. So make sure always install the wire at a distance that cannot reached to the children.

(5)THE POWER BOARDS AND EXTENSION CORDS :

Do not make the extension cords and the power boards a permanent solution. And also you must not overload the power board. Contact to your electrician and then install the all power outlets in the areas where you need the power. Chances are very unless when your home was newly built.

(6)LIGHT BULBS:

We never think about the light bulbs but this is also one of the electrical hazards, So when light bulbs are  kept close to the flammable materials then potential arises for an electrical fire. These will include the drapes, beds, plastics ,or other items like upholstery.

(7)COVERED CORDS AND WIRES:

Never cover the heavy bundle of the wires can cause the cords to the overheat, which will  lead to the electrical fire. Do not mix the cords and wires ,so always keep away from the other items and also uncovered.

(8)PUTTING WATER ON THE ELECTRICAL FIRES:

If Fire should happen, and you have  end up with the fire that has been started from the electrical source, then you need to do at last is just pour water on it . Use the fire extinguisher, if you are worried about the electrical fires then you can use the fire extinguisher instead of water at the time of emergency. If you do not found anyone your nearby, then you can switch off your all electrical power and smother the fire by using a wool blanket. If you are not sure, about all then just call to the fire brigade.

Always  keep all these points .These all are the safety rules that could save our life .

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Rules for using electricity with right way

Having secure and fixed environment is not sufficient to conduct the electricity task. before executing any duty follow some precautions(rules and regulation). To keep safe yourself and the others from electricity , you must follow the rules when using electricity .

You must always track the simple safety rules and precautions while doing the electricity task such as: you working with the electrical circuits, electrical appliance or with any other electric tool. Then surely you would love to know the all electrical safety rules and regulation.

Always keep distance with the electricity: if you do not know that how to operate with the electricity then just keep maintain the distance with the electricity.

Must know what you do not need to use: Using the ring, metallic rulers, or the any metal, also with the bare and wet hands can give get you harm with a high electric shock. And I am completely sure that you won’t to hurt yourself like to having this shock.

Things to keep in mind: If the Circuit wire is in bad situation, you’re electricity appliances are not working properly, and if lights are swinging  this means that you require an electrical repair or a maintenance.

                                       Rules For Work Place Safety 

It does not matter whether you are doing it yourself or you are calling an electrician, At the time of repair always  keep in mind that your hands should be well dry, you must use the essential tools, shoe & rubber gloves. They are good and all acts as an insulator, also please do not wear the loose clothing near an electrical equipment. Do not use highly unstable liquids near the electrical equipment.

Do not use the water: Because the Water and the electricity do not have a good relation. The electricity becomes more powerful and harmful with water. You must unplug the main equipment or must shut down the main switch and power supply.

In case of an electric shock: As we know that no one wants to go with this situation . However, if this will happens with someone else or with you. First of all , Just try to be very calm at that time and make sure to make things controllable.

And immediately switch off the all of power source from circuit breaker. Enclosing the all electric contacts and the conductors will save the people from getting harm with the electric shock.

Try to customize the use of the electrical equipment :To be electrically secure you must like to customize the use of an electrical equipment in the Cold room .

Use the essential tools always: With the help of Tools you can save your lot of time. But, in case of an electricity. These tools may save you to getting hurt from an electrical shock. To perform the any electrical task maintenance, must make sure that you are using the essential the tools with the non-conducting handles.

Do not try to handle an electrical appliances with the wet foot, hands and on to the wet floor.

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Millions of homes in World are electrically unsafe. What about yours?

Electrical Safety Tips at Home:

As we all know that without electricity we could not imagine our life, So the electricity plays a main part of our lives.

It gives the energy to our appliances and also giving the heating, lighting and cooling, electricity makes our daily task so easier but if we used the electricity  incorrectly then this will become so harmful,  has potential to injure or even death. In Our page you will  know the tips of electrical safety for both as outside and inside the home and With help of these tips you can make your Office, School, Home a safer and protected place around an electricity. we completely depends upon the electricity to supply us with the Light, Heating, Food, Cooling and an Entertainment.

Many of the  electrical accidents happens at  the home only and the given concern are the main reason, Appliances, Cords , Adaptors or Power Boards, Wet areas, Concealed wires, etc…

Do not touch the electrical appliances by bare feet and with the wet hands.

Always Remember to unplugged the appliance when use ,because when we turned-off the appliance is still connected to the electricity, so always unplugged.

Replace the all old type of fuses :ceramic wire’s with the switch-type a circuit breakers.

When using the electrical appliances must wear the plastic or rubber soled shoes, especially remember while stepping on to the concrete floors and at time of outdoors.

Do not use a ageing or faulty appliance as this may cause the short circuit due to the frayed cord or broken plug.

Before unplugging the appliances always remember to turn off the power points.

While using the microwave do not put aluminium foil or the metal plates inside .

When using the electrical appliances be more careful and check the switches that is all attached to the power outlets such as near the kitchen or tubs, bathroom sinks, swimming pools, and the other wet areas.

In every three months check and test the all switches to ensure that all switches are working properly or not.

Always safely unplug electric shavers and store hair dryers when not in use in the bathroom and also do not use the portable electric heaters .

In wet areas never use the extension cords .

Just keep away the stereos to well from the spas and the swimming pools to prevent the splashing.

Before replacing the light bulb remember to turn off the light switch and do not replace the light bulb or never touch the light switch with your wet hands. Just use the light bulb as the right  wattage to protect the overheating.

Turn off the all appliances such as heaters, air conditioners and ovens while leaving the home.

Make sure that appliances are: computer monitors and televisions that produce the heat must have several inches of clearance all above around for the good air circulation.

Do not fold the electric blanket up to the store may be wires may bend or break.

Trust your electrician to make your home safe:

Safety is serious business – and it can be very technical too. Only qualified electricians can make your home safe and protect your family from the risk of electrocution. So, whether your home is a modern building or – in fact, especially – if it’s an old one, call an approved electrical contractor.

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Adavntages and Disadvantages of Underground Cables

Apart from designing less optic and environmental crash that produces the huge dissent from the local communities, So the underground cables have many other unique advantages, in separate they:-

Advantages of a Underground Cables:

These all are the advantages of a Underground Cables:-

Have bottom conveyance losses.

Have less maintenance fetch.

Can soak up the emergency power loads.

Release with no electric field and will be engineered to release a less magnetic field than the overhead line.

To install it requires a small band of land.

Low susceptible to the contact of the severe weather.

They have decreased the EMFs (Electric and Magnetic Fields) and therefore removes the potential health issues.

During the Installation the underground cables wiring not disrupts the ground. If it is installed advanced before the landscaping of a new home, it’s even less observable. There will be not any kind of lines that will disrupt your line of vision. Lightning rarely links with underground cable wiring. You do not need worry while you are trimming the tree that you will experience a live wire.

It is very hard to steal, and also very hard to make sabotage or the illegal connections .

There are very less chances to developing the faults and the maintenance costs is very low as well.

Disadvantages of a Underground Cables:

These all are the disadvantages of a Underground Cables:-

The Cost of underground cables are very high (e.g. HVDC).We can say that underground cables cost is three times more compare as to the overhead lines (i.e. 400 KV).

Moreover placing or inter cost of the underground cable lines are much greater as compare to the overhead lines.

In case of the failure of system ,It is hard to discover and fix the wire breaks. besides it takes a lot days or weeks to just overcome with the problem.

The maintenance of the underground cables is very difficult as compare to the overhead because of the underground cabling.

Underground cable lines can not be standard to expand the capacity but overhead lines can easily be up rated to expand more power .

Underground cables are main of the subjected to destruction because of the ground movement required to an earthquake.

An environmental drawbacks also occurs like the person or the another utility doing work in the lawn it will hits buried wiring at the time of digging jobs, for example a tree planting or setting barrier posts. Also the environmental underground cables drawback consist the disruption of soil. So the Settling of the dirt can be happen. You must have a connection box or manhole buried on your belongings.

For the Installation it is very expensive as compare to the other cables such as overhead lines . So for this reason, The underground cables are used very rarely for an entire.

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The safety and health underground cables.

The safety  and health (underground cables) outlines methods that we recommend you to follow while digging. You require to receive all accessible maps of the sector from the all utility source, including Orion as well, and  before digging ,you must need to use the cable locator. Just to support  locate the underground cables in all public places such as streets and parks, the all maps are free and easily available from us. Always keep this in your mind that you must not commence any kind of revealing until you have taken all safety provision . Even if you already do have the maps showing the all location of the underground cables, If a new underground cables are installed by your premises, or just to outbuilding, please ensure you will be getting the position record from all the electrician showing that the all buried cables will lie. During the digging work in future this will be going invaluable .

                                  Underground Cable Construction

This will be very harmful during digging the underground cables if incorrectly used : may causes potentially and severe the fatal burns to the face ,hands and the entire body.:

Using Hand Tools

Mechanical Excavator

Jack Hammer

Moling Trenchless

Driving Earth Rods

Concrete Saw

Cutting into service ducts

A safe system of work has four basic elements:

Planning the work : Many dangers can be circumvent by careful designing before work begins. Risk assessments must be consider that how work will be carried out, protecting the local circumstances that are taken into the account .The permit system might be an appropriate for the particularly and all hazardous work. This will require written official permission  by the responsible person, pin point the work that to be done and the provision  to be taken.

Plans: Plans or other acceptable information that about the all buried facility in the sector must be procure before revealing work starts, when the all work is being organised. Most of the buried resource belong/related to the one of utilities. Those that  are not are to be  likely get found on or the near of the commercial, , military, industrial or on the other sites. Wherever possible holder/operators must  be discuss. It must be remembered that for the number of kinds  of facilities there can be more than one holder in an area.

Cable and Pipe Locating Devices: Appropriate cable locating devices must be nearly in to the conjunction just by the cable plans to direct as accurately /correct as possible as the attitude of underground cables in or the near the offered work area. As the guide to the all workable location of facilities and to support interpret the signal.

                                            Underground Cable

Safe Digging Practices: Excavation work needs to be carried out very carefully( without any harm) and follow the steps that is completely identified the safe digging practices. Once a locating device is used to dictate the position and route, excavation can  start, with the trial holes dug using the correct hand tools as compulsory to confirm the attitude of any buried facilities/services.

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The Good, The Bad and The Ugly Cable Insulation.

The Basic Fundamentals of the Cable Insulation:

                                            Cable Insulation

The Basic discernment of the Cable Insulation properties  structure the foundation for the assessment of a cable operability. These same root provide the basis for formation like of various  physical and electrical  tests and measurements are cost-effective, meaningful and warranted, and are all beginning for the evaluation of present or regular cable test .

Properties of Cable Insulation:

Insulation performance always influenced by the different factors, Some of which include: Thermal bridging. Surface emissivity (“ε” value) Density. Thermal conductivity (“k” or “λ” value) Specific heat capacity. Insulation thickness. The insulating ability of a material is studied as this opposite of thermal conductivity (k).Low thermal conductivity is always to high insulating capability (Resistance value).

What is Good Cable Insulation?

                                          Good Cable Insulation

As we know all about that the good insulation always has the high resistance and the poor insulation having the relatively very low resistance.

The actual resistance values depend upon the factors as the moisture or temperature content of the insulation it can be higher or lower (resistance decreases in moisture or temperature ). When with any insulation system the voltage is impressed ,then some current leak around the insulation. During the testing with the direct high voltage ,insulation absorption current, capacities charging current and by-pass current are all need present to some degree.

Reasons why a Cable Insulation has failed?

When the design limit get exceed by the magnitude of the leakage current ,then cable deliver energy will be no longer efficiently. The main Failure of cable insulation breakdown is often similar with the low efficiently of solid or liquid cable insulation materials used inside the high voltage transformers or the capacitors in the electricity distribution grid, and at end in a short circuit or a blown fuse. The Cable insulation that has already been damaged and pierced just due to the compression of the heat (heat shrinking, soldering), (cable ties, strain reliefs) or stripping. The reason of a cable failure depend on many substances such as oil, water and chemicals can contaminate and made the reason for the shorten the life of cable insulation and cause the serious problems. All insulation cable deteriorates will naturally with the age, especially due to the high loading and when it is not the physically damaged it get exposed to the elevated temperature. In this case, there will be a distributed flow of the leakage current at while a test or energized.

Cable Faults Described

Cable fault location is the action of locating the periodic faults like cable insulation faults in the underground cables, and It is an application of an electrical measurement systems. So first just find that the method or the group of methods is best for locating the underground cable insulation faults? just Find the location of the underground cable fault that doesn’t have to be like finding a needle in a haystack. It tells the life of a cable is dominated to the aging of a cable insulation system.

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How to Locate underground Faults in Cable?

Brief Introduction (Cable Faults)

When the electrical energy is get produced in the generations’ stations, then it will pass round to the different loads, i.e. towns, cities and villages for utilization then. The process require stepping up voltage to the minimize the mislaying of energy in  form of heat. The stepped up voltage is pass round to the grid stations where it will stepped down for handling out to the local transformers where this will be  finally stepped down and pass round to the clients.

Handling out of the electrical energy is completed via the electrical cables. All cables are either the insulated or un-insulated. The alternative of using the insulated or un-insulated (Overhead lines or the Underground) cables are largely near into play when the energy is to be moved in the underground installation process.

                                                 Cable-faults

Far from the insulated cables, The faults in un-insulated cables are simply detected as the most basic fault that is associated with such kind of cable is break and cut in the  wire or cable conductors.

in the insulated cables principally multi-core cables, the faults in the cables are of different kinds and have so many causes. Before we take a look that how to locate all these repeatedly met faults, let’s catch  what are the mainly cable faults  and the possible outcomes causes and just  locating of these faults.

Different kinds of Cable Faults:-

                                                   Cables-Fault.

These all are the types of Cable Faults that is mostly often Found In the underground Cables.

Open-Circuit Faults: This kind of fault mainly occurs as a final output of the conductor breaking down or the conductor being draw out of its joint. In such cases, there will be no possibility to flow of current at all as conductor is broken down.

Short-circuit or cross fault: In the short -circuit or cross fault these type of fault are mainly occurs when the insulation get damaged between two cables or between the two multi-core cables. In these kind of cases, the current flow will not be through the main core that  is connected to the load but it will flow through directly from one cable to the another one or from one core or the multi-core cable to the other instead. This load will be the short circuited.

Ground or earth faults: The Ground or earth faults are kind of faults that mostly occurs when the cable insulation gets damaged. The cable current flowing through its faulty cable that is starts flowing from the one core of the cable to the earth or the sheath of the cable. the flow of Current will not through the load then.

The reason of Cable Faults:-

The reason of Cable Faults that occurs are mainly due to the dampness in the paper insulation of the cables. As an outcome, it may destruction the lead sheath that protects the cable.Lead sheath may destruct in many other ways. Mainly of them are all chemical action of the soil on the lead when it ‘sburied, mechanical destruction and crystallization of lead far side of

How to Locate underground Faults in a Cable?

Before the fixing of any fault in the cables, We need to be identified the fault

A  regular proceed towards to the test cable and decide the insulation integrity is to take a Hi-pot test. In the hi-pot test, a Direct Current voltage will be register for 5 to 15 min. IEEE-400 state that the hi-pot voltage for the 15-kV class cable will be 56 kV for a receiving  test and 46 kV for the maintenance test (ANSI/IEEE Std. 400-1980). The rest of the industry standard tests will be given in (AEIC CS5-94, 1994; AEIC CS6-96, 1996; ICEA S-66-524, 1988). High-pot testing is just like a brute-force test; in this the imminent failures are found and detected, but the quantity ofthe  deterioration due to aging will not quantized (go/no-go test).

The Another alternative for cable testing integrity is an ac testing that doesn’t debase the solid dielectric insulation The hold of very small frequency AC testing (at respecting the 1 Hz) may be the reason of the little damage to aged cable than are Direct Current testing i.e..Eager et al., 1997(but utilities have announce this will not be completely  benign, and an alternate current testing has not obtain widespread usage).

The small frequency has the edge that the equipment is much compact than 60-Hz Alternate Current testing equipment.

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How important is Insulation Resistance Testing.

Insulation resistance testing is very important for low voltage circuit breakers. Harsh temperature excesses and chemical contagion surroundings may add deterioration. The Insulation Resistance Testing is known as a Megger test which is used as a “Spot type” to measure the insulation’s dielectric condition at a given moment in time.

                  Megger Insulation Tester.

This test is performed by applying a current limited DC test voltage between the conductors and the chassis of the equipment and then it measures any current leakage across the insulation’s di-electrically materials.Test equipment is used to apply an over-voltage to test the integrity of the insulation.

                                        Insulation Resistance Tester.

The main purpose of performing insulation resistance testing-

include-It is used as a quality control measure at the time a piece of electrical equipment is produced.

It is used as a periodic preventive maintenance task

It is used as a troubleshooting tool.

How to perform an Insulation Resistance Test?

            Insulations Resistance Test.

By connecting two leads a (positive and negative) across an insulation barrier one can perform an Insulation Resistance Test. A third lead establishes a connection to a guard terminal which can be available with the tester.It allows the person to be selective in evaluating certain specific components in a large piece of electrical equipment.

What affects Insulation Resistance Reading?

Insulation Resistance is temperature-sensitive. When temperature increases, insulation resistance testing decreases and vice versa. So to compare new readings with previous ones, the person requires correcting the readings to some base temperature.

Testing can help an individual to determine whether the insulation is performing at an effective and safe level. Routine testing can identify problems before they result in injury or equipment failure. In case of excessive heat or cold, moisture, vibration, dirt, oil and corrosive vapors these all features give a great contribution to worsening the environment and to solve these problems Insulation Resistance Testing is performed.

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What is shielded cable and its Importance?

What is shielded cable?

A shielded cable is an electrical cable in which one or extra insulated conductors that bound by a common conductive layer….The High voltage power cables with the solid insulation are completely shielded to defend the cable insulation, equipment and  people.

Why would we use the shielded cable?

Like at the  production or factory floor where hefty equipment is being pre-owned  a prime example of an area where you might consider a shielded cable. Radio and Electromagnetic frequency interference (RFI/EMI) is all over us. This is the reason that signal  and data cables are mostly defended with the insulated conductors and enfolded with the conductive layer. Shielding bring down the electrical noise and  decreases its clash on signals and also further down electromagnetic radiation. Shielding stop the cross talk between the cables close each other. Shielding not only stop the cable but it can also save machinery and humankind as well. Power cables are raise to be an electromagnetic compatible (EMC) to reduce the noise generation, that influence many other systems such as  radio and the data communication.

Communication cables are completely shielded to stop the upshot on the data conveyed from EMI. To further avert cross talk and communication ,coupling  cables are also paired and are separately shielded. In quite applications, like  those require servo cables, binary or even the triple shielding is required: throughout separately conductors, around the twisted pairs, and about the complete cable.

Some applications don’t need any shielded cables like : A cable will be used in the cabinet or else  off from further sources of the noise, it doesn’t require to be shielded, as it will be save from noise and EMI previously.  Like if we say that but There’s don’t any kind of definitive standard that will describes the class and level of extrudable shielding stuff called “super smooth and super clean”. This will not be always practical to apply  a manufacturer’s trade product number or name to define the  any kind of stuff  .

Different kind of Shielding :

Shielded cable is suggested in a variety of cable and wire products like shielded cat 5 cable  , shielded tray cableand VFD cable. The main basic reason for the shielded cable is to slash down on the cross talk between the neighboring ,conductors cables . Cable shielding require either a spiral design ,braided or a metal-coated foil or Mylar shield. The shielding muffle about each conductor the mitigate noise range i.e..,85% to 100%, turning on to the  configuration. The topmost shielding of the  braided shield may have is 90%. Spiral shields may  recommended 98%, while metal-coated Mylar may  glance 100% of EMI.

Using a narrow layer of aluminum or  Mylar foil completely removes the gaps you may face with the braided designs. The foil will be connected  to the polyester backing that offer 100% coverage. However, this is thin and  can make trying connectors as a challenge. Foil shielding may also be disfigure in large -flex of the applications, so the braided  or a spiral designs will do work super  there.

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