Surge Protection Devices (SPDs) are specialized electrical components that are designed to protect
electrical systems and devices from power surges. SPDs are typically installed at the point of entry of
an electrical system, such as at a main service panel or at the point where power enters a building.
Designers create them to divert or neutralize any excess voltage that could potentially exist in the electrical system, thwarting its ability to cause damage or destruction to connected equipment.
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Different types of SPDs exist, including Type 1 SPDs installed at a building’s service entrance, and Type 2 SPDs installed at individual branch circuits. Furthermore, Type 3 and Type 4 SPDs are in existence, designed for specific applications like safeguarding communication and signal lines.
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One of the primary advantages of SPDs is that manufacturers can design them to offer a 10-year warranty, ensuring a decade of protection from the date of installation. This extended protection ensures that the system remains safeguarded throughout the entire time frame, offering users a sense of peace and reassurance.
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Another advantage lies in the potential to design them for highly effective protection against power surges. They typically have a high surge current rating, which means that they can handle large amounts of current during a power surge, preventing damage to connected equipment.​
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In conclusion, Surge Protection Devices (SPDs) represent specialized electrical components crafted to shield electrical systems and devices from power surges. Manufacturers can design them to include a 10-year warranty, thereby guaranteeing a prolonged period of protection. Different types of SPDs exist, and manufacturers design them to be highly effective in providing protection against power surges. They become an essential component in any electrical system to guarantee the safety and longevity of the connected equipment.

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