PROTECTING ELECTRICAL EQUIPMENT FROM LIGHTNING AND VOLTAGE SURGES:
Your Equipment is at Risk
Lightning and voltage surges can cripple businesses in an instant. Without warning,
electrical damage to state-of-the-art telephone systems, computer networks or expert
diagnostic equipment can knock out a company's ability to communicate and transmit
That could shut down the business, leading to expensive repairs and costly business
Understanding the Problem
Damage from voltage surges usually can be avoided, but still accounts for millions
of pounds in losses each year. What are voltage surges? Simply stated, they are
disturbances in the normal pattern of a power system's supply voltage — those caused
by circuit switching and those due to the environment.
Circuit switching surges happen when a sudden change to an electrical circuit occurs.
That may be due to equipment use, changes in utility power supply or damaged power
lines. An example of environmental surge is lightning.
Protecting Your Client's Equipment
How can you protect your client's telecommunications systems, computers or other
sensitive electronic equipment? The simplest means is the proper use of surge suppression
devices and making sure all equipment is properly earthed.
In order to be effective, the earthing system must be continuous. And there should
be only one earthing system. Never install a separate earth for computers or diagnostic
systems — it creates a potentially life-threatening situation. Consult a professional
engineer or licensed electrician if you suspect you have a separate earth.