Designation:F2349−04(Reapproved2010)StandardPracticeforOperationandMaintenanceofIntegratedNaturalGasPipelinesandOpticalFiberSystems1ThisstandardisissuedunderthefixeddesignationF2349;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstheoperationandmaintenanceofnaturalgasdistributionandservicepipelinescontainingopticalfibercableandtheoperationandmaintenanceoftheopticalfibersystem.1.2Thispracticeappliestodistributionandservicelinesusedtotransportnaturalgas.1.3Thispracticedoesnotapplytonaturalgastransmissionlines.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ReferencedDocuments:ANSIZ117.1-2003SafetyRequirementsforConfinedSpaces2CFR49CodeofFederalRegulations—Title49,Part1923IEC60825-1Ed.1.2en2001,SafetyofLaserProducts—Part1:EquipmentClassification,RequirementsandUs-er’sGuide4IEC60050-731ElectrotechnicalVocabulary:OpticalFiberCommunications4OSHARegulation29CFRPart1910.146,Permit-RequiredConfinedSpaces53.Terminology3.1Definitions:3.1.1CFR—U.S.CodeofFederalRegulations.3.1.2classlocation—thespecificcriteriaforClassLoca-tions1,2,3,and4asdefinedinCFR49,Part192.5.3.1.3conduit—plastictubingusedtohouseopticalfibercablethatisconnectedto,butnotinsideof,apipeline.3.1.4confinedspace—anenclosedareathatislargeenoughandsoconfiguredthatapersoncanbodilyenterandhasthefollowingcharacteristics:(1)itsprimaryfunctionissomethingotherthanhumanoccupancy,and(2)hasrestrictedentryandexit.(Restrictedentryandexitisaphysicalconfigurati...
