ABSTRACT
The IEE Wiring Regulations Before we embark on the subject of inspection and testing, it is, perhaps, wise to refresh our memories with regards to one or two important topics from the 16th edition (BS 7671 2001). Clearly the protection of persons and livestock from shock and
burns etc. and the prevention of damage to property, are priorities. In consequence, therefore, thorough inspection and testing of an installation and subsequent remedial work where necessary, will significantly reduce the risks. So, let us start with electric shock, i.e. the passage of current
through the body of such magnitude as to have significant harmful effects. Figure 1 illustrates the generally accepted effects of current passing through the human body. How then are we at risk of electric shock, and how do we protect
against it? There are two ways in which we can be at risk:
1 Touching live parts of equipment or systems that are intended to be live, this is called direct contact.
