Back To Basics

We thought that now is a good time to go back to basics and explain how Surge Protectors work and to help consumers understand their importance and why we need them.

How Surge Protectors Work

So how do surge protectors work? Basically, the electrical current flows from the wall to your surge protector and then to your electrical devices. When there is a surge, the extra voltage is diverted to the grounding wire inside the surge protector. There is usually some device inside the surge protector that handles this process of switching over to the ground when the voltage is too high.

It sounds simple, but it is what makes all the difference when it comes to price for these devices. Basically, there are three factors that differentiate the level of surge protection and the cost:

1. Clamping Voltage – A lower value here is better. This basically at what voltage the diversion will kick in. 330 V is a good low value whereas 500 V is too high because your electronic equipment might fried by then.

2. Energy – This is a rating that tells you how much energy the surge protector can absorb before it burns out. It’s given in joules and ranges from 200 joules for very basic protection all the way up to thousands of joules.

3. Time –  Some surge protectors kick in with a little delay, thereby exposing your equipment to the surge for a longer time. You want a surge protector with a very low response time.

Another good thing to look for is an indicator light on surge protectors. If it gets fried and no longer can protect your devices, you really don’t want to keep using it. If there is no indication light, you may never know that you surge protector is already dead.

How to Really Protect Yourself Using Surge Protection

If you really want to save equipment, even from lightning or from surges down power lines, there are a couple of things you need to do. Note that these will require calling your electrical provider/power company and asking for their help too.

1. Proper grounding – At the point where the power goes from the power lines down to the box outside your house, there needs to be proper grounding. If the box doesn’t have proper grounding, any power surge from the power lines will flow right into your house and fry up everything. You can call your power company and they usually will come out and perform a test at no charge. I didn’t know this, but it’s true! You can also get an upgraded grouping if your power company offers the service.

2. Direct-strike prevention – The best situation is when your house never gets struck by lightning. You can do that with a lightning rod. You can buy these bad boys online and attach them to the top of your house or in other locations along with grounding. Instead of your house getting hit, the rod will get hit and conduct everything down into the grounding. Again, something you’ll probably have to get professionally installed, but the only real way to truly protect against a lightning strike without having to unplug everything in your house.

3. Whole-House protection – This is what I had mentioned above. This could be a third defense against surge protection or a first defense if you can’t or don’t want to spend the money for #1 and #2. Here are a few whole house surge protectors.
1. highly recommended
2. Other great choices

4. In-line surge protectors – This is your final line of defense. You can buy Ethernet surge protectors, coaxial surge protectors and more.

Remember, a whole house protector will not be able to protect from surges that occur within the house, unless it reaches the main electrical board. So that’s why you need to have surge protection at all points in your house in order to truly protect your equipment.

Here are some great room to room surge protection choices

1. Highly recommended
2. Other great choices

What are your thoughts on surge protection? How do you have your house and equipment setup to protect against surges?

Let us know in the comments. Enjoy!

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Filed under: Surge Protectors Tagged: how surge protectors work, surge, surge protectors, surge protectors work