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Since early 2003 the Electrical Inspectorate has been functional to raise public awareness of Residual Current Devices (RCDs), with the aim of at last enforcing the use of these devices as recommended by the standard adopted by the St. Lucia billet of Standards for wiring of buildings SLNS/BS 7671 2001- Requirements for Electrical Installations V IEE Wiring Regulations V one-sixteenth Edition. These Regulations though only recently adopted by the Bureau of Standards is the Regulations referred to by the St. Lucia Electricity regulations of 1973 as the standard of wiring of buildings. For a very considerable time the cost of these devices had proven prohibitive for the enforcement of the requirement. However, it is now believed that safety concerns as it relates to galvanizing hazards such as fire and electrocution far outmatch the cost of these devices What is an RCD?An RCD is an galvanic safety device specially designed to alleviate life from electrocution by immediately s witching the electricity shoot when electricity Leaking to earth is detected at a level that by chance harmful to a person using electrical equipment.How Electricity KillsElectrocution occurs when a small, specific amount of electrical flow flows through the shopping centre for 1 to 3 seconds. 0.006-0.2 Amps (i.e. 6-200 milliamps) of current flowing through the heart disrupts the convening coordination of heart muscles. These muscles lose their vital rhythm and begin a cognitive process known as ventricular fibrillation. Death soon follows.0.25 Amps/250mA is equal to the current flowing through a 60W Bulb.What is ventricular fibrillation? The heart beats when electrical signals move through it. Ventricular fibrillation is a condition in which the hearts electrical activity becomes disordered. When this happens, the hearts lower (pumping) chambers contract in a rapid, asynchronous way. (The ventricles "flutter" rather than beat.) The heart pumps little or no bank l ine therefore the probability of death is high.What is the advantage of RCDs over Breakers and Fuses?Fuses or over current circuit breakers protect wires from damage non human beings and lifestock. On the other hand RCD with a maximum swinging current of 30mA allow for protection from electrical shock. Circuit breakers and fuses provide equipment and installation protection and operate only in response to an electrical overload or short circuit. Hence these devices cannot detect earth pause currents below their operating current. If they are the only means of protection, it is possible for satisfactory earth fault current to flow undetected to constitute an electrical hazard (fire and electrocution).