Document: NUREG-0800
Document ID: 853719df-a6ea-408b-8d43-5956155abc38
Document Type: srp
Title: and 8.3.2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1007/ML100740246.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
ld also review the periodic test procedures. RG 1.204 provides acceptable guidelines for an adequate and acceptable testing and maintenance approach for the reviewer to confirm the proper installation of a lightning protection system and ensure its continued ability to provide the level of protection for which it was designed. The reviewer should verify that new lightning protection systems (LPSs) are inspected following installation, and reinspected at least on a regular, periodic throughout their lifetime. In particular, an LPS should be inspected whenever any alterations or repairs are made to a protected structure, as well as following any known lightning transient to the system. An LPS should be visually inspected at least annually. In areas where severe climatic changes occur, it is advisable to inspect the LPS semiannually or following extreme changes in ambient temperature. The reviewer should verify that testing and maintenance procedures are established for each LPS. The frequency of testing and maintenance will depend on weather-related degradation of protective features, frequency and severity of damage attributable to lightning transients, and required protection level. The LPS testing and maintenance program is reviewed for the following activities: (1) inspection of all conductors and system components, (2) tightening of all clamps and splices, (3) measurement of the earth grounding resistance, 8.2-22 Revision 5 - May 2010 (4) measurement of the resistance of ground terminals, (5) inspection or testing (or both) of surge protection devices (SPDs) to assess their effectiveness, (6) periodic testing and maintenance of earth grounding systems, (7) refastening and tightening of components and conductors as required, (8) inspection and testing when the LPS has been altered by additions to, or changes in, the structure, and (9) complete records. 3. GDCs 33, 34, 35, 38, 41, and 44 set forth requirements for the safety systems whose source of power is the