Effect of power quality on human health and safety

Abstract

Every product which is supply on the market has to fulfi l defi nite parameters. These parameters ensure usability of product in consumption and guarantee safety of product in relation to health protection and protection of property. The same requirements concern supplied elektricity in distribution network. Most devices are dependent on the source of electrical energy today. For this reason, it is very important to follow parameters of electrical energy for the error - free operation of these devices to prevent health damage (e.g. fl ashing of light sources owing to fl ickering effect - factors of fl ickering) or fi res (e.g. fi res caused by insulation failure owing to inadmissible overvoltage in supply network). The parameters of power quality are defi ned in the standard ČSN EN 50160 ed. 3. Methods of measurement are mentioned in the standard ČSN EN 61000 - 4 - 30.