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A permanently installed surge protection device

Surge Protectors

Dear Mr. Electrician:  What are the best whole house surge protectors that will protect my computer from lightning, and how do I install them? Answer:  The best whole house surge protectors will protect your home and appliances from lightning strikes, power surges, solar flares, and electromagnetic pulses. Methods to install whole house surge protectors vary slightly between devices and the type of main electrical panel.  However, installing a surge protector on your main electrical panel is relatively easy compared to other electrical wiring tasks.  Installation of surge protectors can be hazardous because of the live electrical components you have to work around. NOTE: Text links below go to applicable products on Amazon and EMP Shield.  As an Amazon Associate, I earn from qualifying purchases. Finding the best surge protectors that will protect your computer from lightning will involve looking at the various specifications of the many brands of surge protection devices. In addition to surge protection, consider a device that also offers protection from Solar Flares and Electromagnetic Pulses, both of which can be harmful to your home's electrical system. Do some homework before making a surge protector purchase.  Read reviews from other purchasers, compare the product ratings, and check the price ranges for your budget. Read the manufacturer's installation instructions before purchasing.  Many installation instructions are available online. TYPES OF SURGE PROTECTORS A type 1 surge protection device is rated for the line side of an electrical service before the main disconnect.  The power company would most likely install this type. A type 2 surge protection device is rated for the load side of an electrical service after the main disconnect.  This would typically get installed inside or attached to your main electrical panel. A type 3 surge protection device is typically the point-of-use plug-in modules, power strips, and surge receptacles.  They must be at least 30 feet or 10 meters away, as measured by the wiring distance from the main electrical service.  If less than 30 feet, they should also be rated for type 2. A type 4 surge protection device shall only be installed by equipment manufacturers on or inside their distributed appliances and machines. INSTALLATION OF SURGE PROTECTORS In my area, surge protectors installed in a main electrical panel must be inspected by the town's electrical inspector.  An electrical permit must be applied for at the building department.  I submit a copy of the surge protector installation instructions with the permit application. Suppose it is a complicated job or there are unusual circumstances. In that case, I will also submit a typed, one-page "Scope of Work" briefly explaining the planned installation and the materials to be used. If there is something that the inspector doesn't like, I prefer to know about it in advance rather than after the job is done.  Surge protection device installations are covered by article 242 in the 2020 National Electrical Code (NFPA 70). Safety is paramount when working with electricity, and precautions should be taken.  Do not wear any jewelry, including watches and rings, tie back long hair, use insulated tools, and cover exposed bus bars.  Please...