Lightning Protection System (LPS) Support
Safety Management Services, Inc. (SMS) assists customers with determining whether their LPS is designed, installed, tested, and maintained adequately. The three main components of an LPS include:
- Strike interceptor: Air terminals / lightning rods or catenary wires
- Conductor system: Down conductors, wires, building frame, mast, etc.
- Grounding system: Ground rod(s) or loop (counterpoise)
SMS uses technical documentation including NFPA 780 and UFC 3-575-01 to compare an existing or planned LPS with current requirements for an effective system. SMS also integrates guidance from the Defense Ammunition Center (DAC) and DA PAM 385-64 regarding LPS requirements for facilities covered under US Army regulations. The risk factors for the specific facility location is evaluated in accordance with NFPA 780 to determine a quantitative risk level regarding the annual threat of strike occurrence.
The applicable risk data along with pertinent system information is used to evaluate an installed LPS for each building. SMS assesses a facility through the following actions:
- Review design drawings including as-built construction drawings of the LPS
- Review rolling sphere analysis for representative LPSs
- Review inspection procedures for LPS
- Review inspection records for LPS
- Physically inspect facility protected by LPS
- Physically inspect facility LPS
- Review any LPS-related risk assessments, waivers, or Deviation Approval and Risk Acceptance Document (DARAD)
These evaluations will identify and document compliance or deficiencies including the adequacy of surge protection devices (SPDs), side flash protection, conductor composition, sizing and spacing, bend radii, strike intercept protection, con Any deficiencies in an LPS are noted in a checklist for that particular building/LPS. All required or implemented mitigation actions to bring the LPS into compliance are assembled in an appendix in the report. A high-level LPS compliance summary is also provided to provide decision makers with the data to make decisions going forward based on risk, cost, or level of effort to make each LPS compliant. This summary can be customized based on customer requirements or priorities.