Foreword(This Foreword is not a part of ANSI/IEEE Std 535-1986@ IEEE Standard for Qualification of Class 1E Lead Storage Batteries for Nuclear Power Generating Stations.)ANSI/IEEE Std 323-1983@ Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations@ was developed to provide guidance for demonstrating and documenting the adequacy of electrical equipment used in all Class lE and interface systems. This standard@ ANSI/IEEE Std 535-1986@ was developed to provide specific methods and type test procedures for lead storage batteries in adherence to ANSI/IEEE Std 323-1983.Adherence to this standard may not suffice for assuring public health and safety because it is the integrated performance of the electrical systems of the station that limits the consequence of accidents. Each applicant has the responsibility to assure himself and others that this document@ if used@ is pertinent to his application and that the integrated performance of his station is adequate.This standard was prepared by the Working Group on Batteries of the Station Design Subcommittee of the Power Generation Committee. At the time this document was approved@ the working group had the following members:J. H. Bellack@ ChairJ. W. AndersonD. BrandtJ. L. ChamberlinV. E. DalkeE. DanielsP. J. DemarD. O. FederJ. GourdierR. S. GreenR. W. HopewellR. KelleherP. Kine*J. KnoxD. S. LevinS. MeisselJ. F. MontalbanoB. RadimerH. K ReidT. RuhlmanB. G. TreeceG. TsouderosG. Walker*Liaison representative@ SC-2 of NPECThe following persons were on the balloting committee that approved this document for submission to the IEEE Standards Board: W. W. AvrilM. S. BaldwinJ. H. BellackI. B. BerezowskyG. BermanF. L. BrennanP. G. BrownR. W. CantrellH. E. ChurchR. S. ColemanR. E. CottaM. L. CrenshawP. M. DavidsonG. R. EngmannW. M. FennerA. H. FerberD. I. GordenR. D. HandelF. W. KeayP. R. LandrieuG. L. LuriJ. T. MadillO. S. MazzoniM. W. MigliaroJ. T. NikolasR. E. PennJ. D. PlaxcoR. J. ReimanB. E. RobertsA. J. SpurginG. I. StillmanJ. E. Stoner@ JrJ. B. SullivanT. D. YounkinsWhen the IEEE Standards Board approved this standard on September 19@ 1985@ it had the following membership:John E@ May@ ChairJohn P. Riganati@ Vice ChairSava I. Sherr@ SecretaryJames H. BealFletcher J. BuckleyRene CastenschioldEdward ChelottiEdward J. CohenPaul G. CummingsDonald C. FleckensteinJay ForsterDaniel L. GoldbergKenneth D. HendrixIrvin N. HowellJack KinnJoseph L. Koepfinger*Irving KolodnyR. F. LawrenceLawrence V. McCallDonald T.Michael*Frank L. RoseClifford O. SwansonJ. Richard WegerW. B. WilkensCharles J. Wylie ScopeThis document describes qualification methods for Class lE lead storage batteries and racks to be used in nuclear power generating stations outside of primary containment. Qualification required in ANSI/IEEE Std 308-1980 [2] can be demonstrated by using the procedures provided in this standard in accordance with ANSI/IEEE Std 323-1983 [3]. Battery sizing@ maintenance@ capacity testing@ installation@ charging equipment@ and consideration of other type batteries are beyond the scope of this standard.