Answer to Question #291078 in Electrical Engineering for jay

Question

With the use of a suitable diagram explain how a person can get an electrical shock from touching an unearthed isolator, state a precaution that can be taken to prevent a reoccurrence.    

Answer 1

As we see, the main risk is the current passing thru a human body. The precautions are proper grounding, earthing, and residual circuit breaker installation.