## Protective Device Introduction

### What is protective device introduction?

Electrical distribution systems are often quite complicated. They  cannot be absolutely fail-safe. Circuits are subject to destructive overcurrents. Harsh environments, general deterioration, accidental damage or damage from natural causes, excessive expansion or overloading of the electrical distribution system are factors which contribute to the occurrence of such overcurrent.

## Electric Shock

### What is an Electric Shock?

Electrical energy source of the most widely used around the world whether for home or industrial use.It is efficient,clean,relatively inexpensive and safe to use when adequate precaution are taken.when precaution are not taken,however electricity is a killer.Around the world each year on cough caused by electric shock.

The photos below show examples of injuries caused by electric shock :-

## What is multimeter?

### What is a multimeter?

Multimeter is a compulsory measuring instrument that all maintenance person and electrical technician must have when perform electrical task.It is very useful device to ensure we get the true reading of measurement.

Why we need a true reading for measurement?From that we can determine the right root cause of equipment and can rectify the problem without any mistake.This device have a multifunction  to measure.I explain detail about multifunction of this instrument and how to use it.

In the field of electrical and troubleshooting tasks, multimeter is the best equipment available when required to do any work with this tool, we can determine the actual value such as :- read more

## What is Electric?

### Electrical definition.

WHAT IS ELECTRIC ? This is a question often asked by people around the world for those who wish to enter the electrical field, they should understand basic electricity.It is very important because electricity can not be seen with the naked eye.we only know about the theory of electricity. in the field of electrical “knowledge is power ” to ensure that we and electrical equipment in a secure and functioning well.We must have a strong basic of electrical..

Ok…here from my simple understanding,Basic of Electric is a electron ( negative charge ) always around a proton (positive charge) and neutron caused by the force of attraction between protons and electrons