ASTM_F_1507_-_99_2011.pdf

Designation:F150799(Reapproved 2011)An American National StandardStandard Specification forSurge Suppressors for Shipboard Use1This standard is issued under the fixed designation F1507;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification establishes performance requirementsof surge suppressors for use on shipboard ac power circuits.1.2 Surge suppressor shall be a protective device for limit-ing voltage transients on equipment by discharging,dissipatinginternally,bypassing surge current,or a combination thereofand which prevents continued flow of follow current to groundand is capable of repeating these functions.1.3 Surge suppressors covered by this specification mayconsist of a single circuit element or may be a hybrid deviceusing several suppression devices.2.Referenced Documents2.1 The following documents of the issue in effect on thedate of material purchase form a part of this specification to theextent referenced herein:2.2American National Standards:2ANSI/IEEE Std 4 IEEE Standard Techniques for HighVoltage TestingANSI/IEEE C62.41 Recommended Practice on Surge Volt-age in Low-Voltage AC Power CircuitsANSI/IEEE C62.45 Guide on Surge Testing for EquipmentConnected to Low-Voltage AC Power CircuitsANSI/IEEEC84.1 ElectricalPowerSystemsandEquipmentVoltage Ratings2.3 Military Standard:3MIL-STD-1399 Section 300;Military Standard InterfaceStandard for Shipboard Systems,Section 300,ElectricPower,Alternating Current2.4 Underwriters Laboratories Standard:4UL 1449 Transient Voltage Surge Suppressors,2nd Edition3.Terminology3.1 Definitions:NOTE1These definitions other than specific to the standard are takenfrom UL 1449,ANSI/IEEE C62.41,and MIL-STD 1399 to provide forharmonization of terms.3.2 power interfaceThe electrical points where the surgesuppression device is electrically connected to the ac powersystem.3.3 combination waveA surge delivered by an instrumentthat has the inherent capability of applying a 1.2/50-s voltagewave across an open circuit and delivering an 8/20-s currentwave into a short circuit.The exact wave that is delivered isdetermined by the instantaneous impedance to which thecombination wave is applied.(Also called combinationvoltage/current surge or combination V/I surge.)3.4 crest(peak)value(of a wave,surge or impulse)Themaximum value that a wave,surge,or impulse attains.3.5 electric power sourceThe electric power that is sup-plied for testing.3.6 electric power system groundGround is a plane orsurface used by the electric power system as a commonreference to establish zero potential.Usually,this surface is themetallic hull of the ship.On a nonmetallic hull ship,a specialground system is installed for this purpose.3.7 follow(power)currentThe current from the connectedpower source that flows through a surge protective devicefollowing the passage of discharge current.3.8 frequency toleranceFrequency tolerance is the maxi-mum permitted departure from nominal frequency duringnormal operation,excluding transient and cyclic frequencyvariations.This includes variations such as those caused byload changes,switchboard frequency meter error,and drift.Unless specified otherwise,frequency tolerance shall be con-sidered to be 610%of nominal frequency.3.9 inrush currentThe inrush current is a sudden changein line current that occurs during startup or as a result of achange to the operating mode.Inrush current is dependent onthe type of load connected to the surge suppressor,andtypically will rise to a maximum value in a few millisecondsand decay to rated value in several milliseconds to severalseconds.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.10 onElectrical.Current edition approved April 1,2011.Published April 2011.Originallyapproved in 1994.Last previous edition approved in 2006 as F1507 99(2006).DOI:10.1520/F1507-99R11.2Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.3Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.4Available from Underwriters Laboratories(UL),2600 N.W.Lake Rd.,Camas,WA 98607-8542,http:/.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.10 leakage currentLine current drawn,either line-to-line or line-to-ground,by the suppressor when operated at themaximum continuous operating voltage.3.11 maximum continuous operating voltageMaximumsinusoidal rms voltage which may be continuously appliedwithout degradation or deleterious effects.3.12 measured limiting voltageThe crest(peak)value ofthe voltage