Surge Protector: A Simple Mechanism Description

Written by T.L. McMullen

A surge protector [AKA surge suppressor] is an electrical plug-in device designed to distribute safe electrical voltages to other electrical or electronic devices. Surge protectors resemble power strips in appearance; however, they are more sophisticated and deliver a constant, continuous power supply.

In addition to connecting multiple devices to a single power source, surge protectors provide protection from frequent problems that plague conventional utility power. The most common of these problems are surges (temporary increase of voltage) and brownouts (temporary decrease of voltage). These disturbances slowly degrade many power supply units and cause premature equipment failure. The rising demand on our nation’s power grids is causing more brownouts than ever before (Gamble; Power Protect Your Computer).

The Inside of a Surge Protector

Toroidal Choke Coil: The toroidal choke coil is an electromagnet wrapped in wire. It filters out line noise asrepparttar hot wire passes through it.

Metal Oxide Varistors (MOV’s): An MOV has three parts: a piece of metal oxide material inrepparttar 145174 middle and two semiconductors joined torepparttar 145175 hot and ground wire. As a protective connecting unit it shifts unsafe voltage levels torepparttar 145176 ground wire.

Neutral Wire: The neutral wire is common in modern wiring practices for safety. It is used in conjunction withrepparttar 145177 hot wire andrepparttar 145178 ground wire.

Hot Wire: The hot wire holdsrepparttar 145179 passing current which contains excess voltage.

Fuse: A fuse is a resistor used to protectrepparttar 145180 wiring from getting too hot. Fuses “blow or burn out”, thereby preventingrepparttar 145181 electrical current from traveling further.

Ground Wire: The ground wire protects users from getting an electrical shock. It receives excess voltage from fromrepparttar 145182 MOVs. Most surge protectors contain a parallel circuit design wherebyrepparttar 145183 extra voltage is fed away fromrepparttar 145184 standard path to another circuit. Another design is a series circuit whererepparttar 145185 electrical current is slowed; moreover it detects high voltage, storesrepparttar 145186 electricity, and releases it gradually (Harris).

The majority ofrepparttar 145187 electrical currents diversion is done throughrepparttar 145188 metal oxide varistor or MOV. The MOV acts as a pressure-sensitive valve: based onrepparttar 145189 level of voltage,repparttar 145190 electrons inrepparttar 145191 semiconductors behave differently either creating lower or higher resistance. Whenrepparttar 145192 voltage is correct, an MOV doesn’t do anything (Harris).

Specifications and Quality Considerations

Energy Absorption: Surge processors are measured in joules (the amount of energy they can absorb). The higherrepparttar 145193 number,repparttar 145194 betterrepparttar 145195 protection: 200 joules provides basic protection, 400 is good and 600 or high is superior protection.

6 Ways To Prevent Identity Theft

Written by Gary Gresham

These six ways to prevent identity theft offer you valuable tips againstrepparttar fastest growing crime in America today. In 2004, more than 9.9 million Americans fell victim to many types of identity theft scams, costing them nearly $5 billion. Their finances were severely hurt because they never thought it would happen to them. Hopefully, this article will help many of you so you won't become a new victim of this terrible crime. Here are six ways to prevent identity theft. 1. Shred any documents you receive that contain any personal information. This includes credit card receipts and pre-approved credit applications. This important tip alone can offer you more protection against identity theft than any other suggestion here. 2. Never give personal information to people overrepparttar 144990 phone, onrepparttar 144991 Internet or throughrepparttar 144992 mail. Identity thieves will claim to be fromrepparttar 144993 government, your bank or even law enforcement. Keeping your personal information private is one ofrepparttar 144994 best ways to prevent identity theft. 3. Check your credit reports from all three major credit bureaus at least once a year and look to see that everything is accurate. If you find an error, dispute it immediately for protection against identity theft.

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