Applying surge protection at the incoming electrical service “Stops Surges Before They Get In.” These types of surges contain the largest surge energy warranting 300 kA or more of surge current redundancy.

External SPD

Increased Redundancy

External - 10 Mode

Increased Redundancy

SPDs should be installed at distribution panels feeding remote hangers, security shelters, parking lot lights, etc. to prevent back feeding surges entering the main terminal.

External SPD

Increased Redundancy

External - 10 Mode

Increased Redundancy

If the terminal is supplied with a higher system voltage (i.e. a 277/480V service), 120V panels need SPDs to condition residual surges leaving the service entrance SPD as well as any internally generated surges. Examples include panels powering security systems, flight status terminals, point of sale equipment or any other panels powering sensitive electronic-rich loads.

External SPD

Increased Redundancy

External - 10 Mode

Increased Redundancy

Even if surge protection is applied at the previously listed locations, redundant protection may be warranted for sensitive, costly equipment. This may include baggage scanning equipment, chillers, and drives.

External SPD

Increased Redundancy

Security, fire alarm, and telephone systems using copper communications lines need protection especially for communication circuits running to and from separate buildings as well as runway signal controls.

External SPD