Heat-Tracing Systems for Hazardous Division 1 Locations

1. Introduction1.1 ScopeThis guide applies to Raychem heat-tracing systems covered by Factory Mutual (FM) Approval orCanadian Standards Association (CSA) Certification for Division 1 hazardous locations. Theseapplications are defined by the National Fire Protection Association (NFPA) 70, National Electrical Code(NEC) Article 500, and the Canadian Electrical Code (CEC) Part I, Section 18.1.2 Typical System with ComponentsTo groundfaultprotectedpowerPower connectionSplice or tee(as required)Glass tapeProtectivetubingPipe strapHeating cable*Thermal insulation is required on all heat-traced pipe.Thermalinsulation*End seal1.3 Division 1 Heat-Tracing CablesRaychem Corporation offers solid-core and fiber-wrapped heating cables for Division 1 areas asshown below.The design sections of this guide will help determine the heating cable best suited for your application.Table 1 in Section 2.0, Thermal Design, gives the performance data for these heating cables. All systemcomponents are specifically designed and approved for Division 1 applications. No parts can besubstituted or omitted.Tinnedcopper braidSelf-regulatingconductive coreFluoropolymerouter jacketInnerjacketCopper bus wireFM Approved HBTV-CT and HQTV-CT Heating CablesCSA Certified BTV-CT and QTVR-CT Heating CablesFluoropolymerouter jacketTinnedcopper braidInnerjacketSelf-regulatingconductive coreCopperbus wireFM Approved HXTV-CT Heating CablesCSA Certified XTV-CT Heating Cables1