E-book Particulars :
Language English
Pages 237
Format PDF
Measurement 14.8 MB

 

Basic Electrical Engineering with Numerical Problems


 

Basic Electrical Engineering with Numerical Problems by P. S. Dhogal | PDF Free Download.

Preface to Basic Electrical Engineering with Numerical Problems


We all know electrical energy s invisible. Due to this fact, whereas working in electrica installations one (viii) Shouldn’t have any sharp instrument protruding ought to all the time first deal with one’s personal security.

A ttle carelessnss can lead to an accident, which many instances might be deadly Due to this fact, electrical energy wants sure precautions Don’t safe a place the place the of dealing with to keep away from hazard.

The next “Do Nots” (precautions) ought to all the time be noticed earlier than beginning work on,

Don’t forget to discharge the over- electrical gear and equipment from the pocket when engaged on a excessive voltage overhead line. All the time preserve one hand within the pocket.

head s more likely to change into a conductor in overhead strains head strains by earthing or by different appropriate means

Don’t forget that electri shocks are usually obtained by the employee and (xi) Don’t forget to earth a metallic might be prevented. Watch out coverings of the eiectrical wiring instal-

lation Don’t forget to attach a change on a dwell conductor Don’t forget to place off the principle change (if neart) within the case of a per x son l in touch with a dwell conductor or equipment.

Don’t use wires and instruments having Don’t try and disengage an individual poor insulation or hesitatingly.

Do it rapidly pulling a versatile cable in touch with a dwell equipment which (xiv) Don’t open or shut a change slowly ou can’t change off instantly Insulate your self from the earth by

Don’t disconnect a plug level by standing on a rubber mat or dry board of wooden earlier than trying to get him Don’t work on energised circuits clear.

Even then don’t contact his physique: push him clear with a bit of dry wooden with out taking all precautions, similar to using a rubber mat, footwear and gloves, and so forth

Don’t forget o pu of the principle (xvi) Don’t tamper with {an electrical} change and take away the fuse provider alongside whereas engaged on an set up Additionally,

then put a warning discover on or (xviii) Don’t renew a blown fuse close to the principle change inscribing “Hazard Males at Work”.

gear or a conductor, until you might be certain that’s useless and carthed you trigger and have are glad as rectified the fault.

Shouldn’t have a false feeling of safety (xix) Don’t shut any change until you might be by believing that resuscitation can all the time carry an individual again to ife after an electrical shock.

To start with, name the physician without delay and apply artificia (xx) Don’t permit unauthorised individuals to respiration rapidly acquainted with the circuit which it controls and know the rationale for it being open contact

or deal with electrical equipment or come inside the hazard zone of excessive voltage equipment Don’t discontinue synthetic respira tion till restoration or dying is licensed by the physician.

Don’t forget to place in your security If Don’t add water to acid whereas pre- electrolyte. All the time add acid paring an to water belt earlier than beginning work on a pole. Urheberrechtlich gesch¼tztes Malerial.


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