What a Complete Government Facility Protection System Includes
Lightning protection for a government building is layered, just as it is for any mission-critical facility. The difference is in the documentation: every layer has to be sealed, stamped, and submittable to the AHJ and the project GC.
1. Structural Lightning Protection (the strike path)
Air terminals, down conductors, and a grounding electrode system designed to NFPA 780 (Rolling Sphere Method) that gives a direct strike a safe, low-resistance path to earth — around the building and its systems, not through them. Sealed, permit-ready design.
2. Surge Protection at Service Entrance (SPD / TVSS — Type 1)
Coordinated surge protective devices at the main service entrance that clamp the large conducted surge coming in on the utility feed before it spreads throughout the building. This layer stops the most common path for lightning transients into the facility.
3. Distribution-Level Surge Protection (SPD — Type 2)
Coordinated surge protection at distribution panels feeding critical systems, mechanical loads, and backup power. A layered approach keeps let-through voltage controlled at every step.
4. Data & Control Line Protection
Surge protection on network, telecom, SCADA, and signal lines entering the control room or data center. Power isn’t the only way a transient gets in — control copper is often an overlooked back door. This is especially critical for emergency operations centers and utility control systems.
5. Grounding & Equipotential Bonding
A properly engineered grounding electrode system plus coordinated equipotential bonding so that all systems rise and fall together during a strike event. Poor bonding is where a lot of equipment failures originate — and it’s invisible until the storm
6. Inspection & Recertification (UL 96A)
Annual visual inspections, full inspections on a defined cycle, post-strike assessments, and UL 96A recertification so your documentation stays current for code, insurers, and audits. For government facilities, this audit trail is non-negotiable.