Whole House Surge Protection

Whole House Surge Protection

Where do Electrical Surges Come From?
Electrical surges happen in storms when:
  • Electric utility lines touch one another.
  • Power grid switching occurs.
  • Air conditioning units, furnaces, refrigerators, or vacuum cleaners turn on and off.
  • Lightning strikes within two miles of a home.
A Step-by-Step Surge Protection Plan

Step 1: Check your grounding system. To do it yourself, a circuit tester can be purchased at your local hardware store. It may give you a pretty good indication of a properly grounded system. Or, you may contact a qualified electrician to verify the quality of the grounding system.

Step 2: Identify the equipment to be protected. Provide single port SPDs for appliances that have only a power cord (such as garage door openers, well pumps, and freezers) and multi-port SPDs for appliances that have antenna, cable, telephone, and power cords (such as computers, televisions, VCRs, and DVD players).

Step 3: Consider providing a whole house surge protector on the main electrical service to the home. This device can be installed on the electrical meter by the utility company or by an electrician on the main electrical fuse or circuit breaker panel.

Step 4: Special surge protection can be provided for security/fire alarm systems, stereo speaker systems, lawn sprinkler systems, intercom systems, garage door operator antenna systems, and other similar special appliances.

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