The first common misconception about AC surge protection is that people often think their standard power strips offer enough defense against surges. It couldn't be further from the truth. While these strips might have basic protection, real surge protection involves devices that can handle much higher voltage spikes. Many power strips can only handle surges up to 330 volts. High-quality surge protectors, on the other hand, are rated to protect against surges up to 600 volts or more, which makes a significant difference when massive spikes hit your system.
Another myth is that once a surge protector works, it’s good forever. That’s a dangerous assumption. In reality, surge protectors have a finite lifespan, often measured in joules. For instance, if a protector is rated for 2000 joules, it will only absorb surges up to that total amount before it becomes ineffective. It’s not uncommon for protectors to lose effectiveness after one significant surge, or gradually after multiple smaller ones.
Some people believe that power surges only occur because of lightning strikes. While lightning is a major cause, it’s not the only one. Everyday electrical devices, particularly those with motors like refrigerators and air conditioners, can create small surges when they cycle on and off. Over time, these smaller surges can degrade sensitive equipment. In fact, about 80% of power surges originate from within the building.
One might think unplugging devices is unnecessary if surge protection is in place. While good surge protectors offer substantial protection, they aren't foolproof. Unplugging devices can add an extra layer of protection, especially during severe weather events. Think of it as a two-step defence strategy where surge protectors handle minor surges and unplugging for major storms.
Many assume that only high-end electronics need surge protection. In reality, almost any electronic device can benefit. Even devices like microwave ovens, washing machines, and smart home gadgets can suffer from a surge. The cost to replace or repair these appliances often exceeds the investment in proper surge protection. For example, a quality surge protector might cost you $50, but replacing your damaged smart TV could set you back several hundred dollars.
There’s also the belief that house insurance covers surge damage. While some insurance policies may cover such damage, they often don’t. Even when they do, claims can increase your premiums. Preventative measures like investing in surge protectors can save you both the hassle of claims and the potential increase in insurance costs. Moreover, some insurance companies might offer discounts if you have surge protection installed.
People often think newer homes have better protection against surges. This isn’t always true. Even if your home has modern wiring, it only takes one big surge to cause significant damage. Moreover, wiring standards are often designed to prevent fires and not to shield electronics from surges. This is why investing in good surge protection is smart no matter the age of your home.
Some consumers are under the impression that surge protectors also act as backup power supplies. They don’t. Surge protectors only guard against spikes and surges. If you want an uninterruptible power supply for continuous power during an outage, you need a UPS system, which could cost $100 or more depending on the capacity you’re after. A UPS system usually provides a few minutes or even hours of power which allows for the safe shutdown of connected equipment.
Another false belief is that small, inexpensive surge protectors work just as well as larger, pricier models. Surge protection devices come with different ratings and capabilities. For example, cheap models might only have a rating for 500 or 600 joules, meaning they won't last as long or protect as effectively as those rated for 2000 or more joules. Spending a bit more upfront can save you from costly damages down the line.
Lastly, some individuals think surge protectors slow down their internet connections. Quality surge protectors won’t degrade your connection speed. What’s more important is the protector’s certification, particularly if it has a built-in Ethernet port. Ensuring it meets industry safety standards, like those set by UL (Underwriters Laboratories), ensures both safety and performance. For detailed explanation, you might want to visit this AC Surge Definition.