Electrical Rewiring Essay -- essays research papers

The outfit that was installed in a house numerous years earlier, or even as recently as a ten ago, may not be adequate for the job it is called upon to do today. A complete rewiring job is in order-or is it? Do not jump to the endpoint that any outlet must be torn out and every receptacle replaced. Many condemnations a less expensive job give serve the purpose. Is the wiring inadequate because you are using too umpteen lights? Too many floor lamps? Too many radios and TVs? That is seldom the case. The wiring usually is inadequate because you have added many electrical doojiggers that were not considered or perhaps were not even on the market at the time of the original wiring job. The installation does not provide enough circuits to last a wide assortment of small kitchen appliances, plus range, water heater, costume dryer, room air conditioners and other heavy appliances. Some of these operate on 240-volt circuits, which may not be available others operate at cxx volts but when plugged into existing circuits they overload those circuits. In addition, the service see equipment may be just too small for the load.To analyze the caper of your particular house, ask yourself this If you disconnected all the appliances, would you have all the liberation circuits you need? The answer is probably yes, which means that your rewiring job is simplified. You will as yet have to rewire the house, but probably not as all as at first appeared necessary. Proceed as if you were starting with a house that had never been wired, but leave the existing luminance circuits intact. (These lighting circuits, of course, will include many receptacles used for small loads same a vacuum cleaner, radio, and TV, but not the receptacles for kitchen or laundry appliances.) in that respect is little difference between old and new ferment, except that in old work there are a great many problems of carpentry. The problem is to cut an opening where a fixture is to be installe d, and other where a switch is to be installed, and then to get the cable inside the wall from one opening to the other with the least amount of work and without tearing up the walls or ceilings more than necessary.One house to be wired may be five years old, another a hundre... ...appliances. Appliances shall have no live parts normally exposed to tinct other than those parts functioning as open resistance heat elements, such as the heating elements of a toaster, which are necessarely exposed. The grade of an soul tell apart circuit shall not be less than the label rating of the appliance. The branch-circuit rating for an appliance that is continuously loaded, other than a motor operated appliance shall not be less than 125 percent of the marked rating, or not less than 100 percent of the market rating if the branch circuit doodad and its assembly are listed for continuous loading at 100 percent of its rating. All appliances shall be protected against overcurrent. If a tu telar device rating is marked on an appliance, the branch circuit overcurrent device rating shall not exceed the protective device rating marked on the appliance. A household-type appliance with surface heating elements having a level best demand of over 60 amperes shall have its power supply subdivided into two or more circuits, each of which should be provided with overcurrent protection rated at not over 50 amperes.