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Video Surge Protector from http://www.choicecycle.com/ACC.htm   (Retailing at S$48) FULL SPEC

Kindly read CHOICECYCLE WARRANTY HERE.

ACT OF GOD: The most familiar source is probably lightning, though it's actually one of the least common causes. When lightning strikes near a power line / video line, whether it's underground, in a building or running along poles, the electrical energy can boost electrical pressure by millions of volts. This causes an extremely large power surge that will overpower almost any surge protector. Suggest Surge Arrester / Protector should be place at DVR Machine, DVR cards, Mulitplexer's end BNC ports especially to those Projects with Outdoor Cables & Cameras. (Beware of Golf Course, Pool, Hill, Air Field and their surrounding)  

ACT OF SURROUNDING ENVIRONMENT: A more common cause of power surges is the operation of high-power electrical devices, such as High Power Stations, elevators, air conditioners and refrigerators. These high-powered pieces of equipment require a lot of energy to switch on and turn off components like compressors and motors. This switching creates sudden, brief demands for power, which upset the steady voltage flow in the electrical system. While these surges are nowhere near the intensity of a lightning surge, they can be severe enough to damage components, immediately or gradually, and they occur regularly in most building's electrical systems.

ACT OF HUMAN: Other sources of power surges include faulty wiring, tapping AC/DC from nearby Lights/Other Equipments, Power supply could not be stable due to ON/OFF regularly, create STRESS to CCTV equipments. Beside problems with the utility company's equipment, and downed power lines. The system of transformers and lines that brings electricity from a power generator to the outlets in our homes or offices is extraordinarily complex. There are dozens of possible points of failure, and many potential errors that can cause an uneven power flow. In today's system of electricity distribution, power surges are an unavoidable occurrence.

Surges and spikes travel through AC and telephone lines and can damage your Cameras, DVR, Computer, data, and other valuable connected equipment. Belkin (BELKIN HOME) represents the premium in electronics/computer surge protection with the industry’s best, hassle-free lifetime warranties. Don’t go unprotected! Lightning and other power disturbances can destroy your Cameras, DVR, Computer and the valuable information it contains in an instant. Cameras, DVR, Computers must be protected with a SurgeMaster™ or UPS to survive today’s power disruptions.

    BELKIN will repair or replace any equipment damaged by a surge, spike or lightning strike. Connected Equipment Warranty (CEW) up to a maximum of S$10,000.00 www.belkin.com

A power surge, or transient voltage, is an increase in voltage significantly above the designated level in a flow of electricity. In normal household and office wiring in South East Asia, the standard voltage is 230 volts. If the voltage rises above 230 volts, there is a problem, and a surge protector helps to prevent that problem from destroying your CAMERAS / DVR CARDS / DVR MACHINE / MULTIPLEXER.

To understand the problem, it is helpful to understand something about voltage. Voltage is a measure of a difference in electric potential energy. Electric current travels from point to point because there is a greater electric potential energy on one end of the wire than there is on the other end. This is the same sort of principle that makes water under pressure flow out of a hose -- higher pressure on one end of the hose pushes water toward an area of lower pressure. You can think of voltage as a measure of electrical pressure.

As we'll see later on, various factors can cause a brief increase in voltage.

• When the increase lasts three nanoseconds (billionths of a second) or more, it's called a surge.
• When it only lasts for one or two nanoseconds, it's called a spike.

In the most common type of surge protector, a component called a metal oxide varistor, or MOV, diverts the extra voltage. As you can see in the diagram below, an MOV forms a connection between the hot power line and the grounding line.

An MOV has three parts: a piece of metal oxide material in the middle, joined to the power and grounding line by two semiconductors.

These semiconductors have a variable resistance that is dependent on voltage. When voltage is below a certain level, the electrons in the semiconductors flow in such a way as to create a very high resistance. When the voltage exceeds that level, the electrons behave differently, creating a much lower resistance. When the voltage is correct, an MOV does nothing. When voltage is too high, an MOV can conduct a lot of current to eliminate the extra voltage.

As soon as the extra current is diverted into the MOV and to ground, the voltage in the hot line returns to a normal level, so the MOV's resistance shoots up again. In this way, the MOV only diverts the surge current, while allowing the standard current to continue powering whatever machines are connected to the surge protector. Metaphorically speaking, the MOV acts as a pressure-sensitive valve that only opens when there is too much pressure.

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