scope:

PURPOSE.

This directive describes practices and procedures to provide effective lightning protection, grounding, bonding, shielding, surge and transient protection for FAA facilities and electronic equipment that make up the National Airspace System (NAS). This Order requires compliance with FAA-STD-019, Lightning Protection, Grounding, Bonding, and Shielding for Facilities, and FAA-STD-020, Transient Protection, Grounding, Bonding and Shielding Requirements for Equipment. This mandate provides the recommended grounding, bonding, transient protection and shielding practices in the design of the electrical power distribution and grounding subsystems for both old and new electronic equipment and facilities. It provides guidelines for surveying existing facilities, and recommendations for the correction of deficiencies. Fundamental theory and technical background supporting this order are contained in a FAA Order 6950.20, Fundamental Considerations of Lightning Protection, Grounding, Bonding and Shielding. FAA-STD-019 and FAA-STD-020 provide the standard configuration for new construction, major modification to existing facilities, and new electronic equipment.