Discussion Based on Small PABX Lightning Overvoltage

Abstract

Construction of large and medium-sized program-controlled switches be placed strictly in accordance with national standards Professional program-controlled switchboard in the room, general will not be affected by lightning overvoltage and harm of operating over voltage. And small PABX are commonly used for smaller enterprises and institutions, such enterprises are unlikely to build professional for program-controlled switchboard room. Mostly I placed it on the corner of the Office or the Office area, convenient pin-outs. As a result of this device is undersized and lower prices, lightning protection concepts and enterprises and institutions to understand enough, it will not attach too much importance to. During the thunderstorm-prone season often makes their lightning overvoltage damage, direct economic loss was not too large, but the indirect economic losses are direct losses many times. This article in view of the characteristics of this equipment, according to the wiring form of power supply system using proper surge protection devices, equipotential bonding, shielding and grounding, and other combinations of several methods, and do not put too much financial and material resources to avoid accidents from happening, the various types of losses to a minimum.