Portable Fire Extinguishers - OFEO

Attachment 15LIGHTNING PROTECTION SYSTEMSInspection, testing, and maintenance of lightning protection systems shall be performed inaccordance with the manufacturer's instructions and NFPA 780 (latest edition). The followinglist highlights minimum requirements for the essential care of lightning protection systems;however, this list is not meant to replace manufacturer's instructions and updated coderequirements. Many system components tend to lose their effectiveness over the years becauseof corrosion factors, roof repairs, weather related damage, and damage caused by lightningstrikes. The physical, as well as the electrical characteristics, of the lightning protection systemmust be maintained to prevent building damage. This data is based on the 2014 edition.Summary of Lightning Protection SystemsInspection, Testing, and MaintenanceITEM FREQUENCY NFPA 25 REFERENCEInspectionSurge suppression devices oncommunication and power lines enteringthe buildingSystem is in good repair. Inspection ofall conductors and system componentsNo loose connectionsNo part of the system has beenweakened by lightning discharge,corrosion or vibrationDown conductors and ground terminalsare intactConductors and system components aresecurely fastened to their mountingsurfacesSemiannuallyAnnually, afterlightning discharge,after roof repairAnnually, afterlightning discharge,after roof repairAnnually, afterlightning discharge,after roof repairAnnually, afterlightning dischargeAnnually, afterlightning dischargeAppendix DAppendix DAppendix DAppendix DAppendix DAppendix DAdditions and alterations are protected Annually Appendix DThere has been no visual damage tosurge suppression devicesAnnually, afterlightning dischargeAppendix D35-56

Attachment 15TestingResistance tests of the groundtermination system and its individualground electrodes if adequatedisconnecting means have beenprovided. Electrical resistance ofground terminals should be 5 ohms orless. 1 Every 3 years Appendix DContinuity tests to determine if suitableequipotential bonding has beenestablished for any new interior servicesor construction since last inspectionElectrical resistance of lightningprotection system (5 ohms or less)MaintenanceTesting of surge suppression devices todetermine effectiveness compared withsimilar new devicesRefastening/Tightening of allcomponents, conductors, clamps andsplicersEvery 3 yearsEvery 3 yearsEvery 3 yearsAnnuallyAppendix DAppendix DAppendix DAppendix D1These test results should be compared with previous or original results or current accepted values, or both, for thesoil conditions involved.35-57