Injury to persons
There are numerous ways in which personal injury may be caused, two common electrical induced injury are:
1. Shock
Electric shock is the effect produced on the body, particularly the nervous system, by an electrical current passing through it. Its effects depend on the current strength which in turn depends on the voltage, the path the current takes through the body, the surface resistance of the skin (much reduced when wet) and several other factors. A voltage as low as 15 V can produce discernible shock effects and 70 V has been known to cause death. Generally speaking fatalities occur from the use of normal domestic and industrial voltages of 230 V a.c. and above, causing currents of greater than 30 milliamps to flow through the body for longer than 40 milliseconds.
The most common cause of death from shock is suffocation and accordingly, it is highly desirable that those dealing with electricity should be trained in resuscitation. Minor shocks in themselves may not be serious but they can lead to serious consequences; for example, the associated muscle contraction may lead to falls from working platforms or ladders.
2. Burns
These are caused by the passage of heavy current through the body or by direct contact with an electrically heated surface. They may also be caused by the intense heat generated by arcing from a short circuit. Electrical burns are a very unpleasant form of burn and require immediate medical attention.
Tech Couriers are required to understand the risks associated with dealing with electricity when on call outs for installations, repairs and decommissioning equipment.
No comments:
Post a Comment