Transcription of Design, Installation and Maintenance Manual
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TheHeat Tracing AuthorityTMDesign, Installation andMaintenance Manual Industrial Electric Heat Tracing SystemsCONTENTS PageSYSTEM design .. 1 Introduction; Competence; Thermal Insulation; Selection of Heat Tracer; Site Fabricated heaters ; Maximum Temperature Determination; Inherently Temperature Safe Heat Tracers (PTC Characteristic); Stabilised design ; Controlled design ; Location of Temperature .. 4 Receiving Materials; Pre- Installation Testing; Visual Examination; Insulation Resistance Test; Component Substitution; Determination of Power Supply Location; Installation of Heat Tracers; Connections & Terminations; Connection CHECKS .. 6 Pre- Installation Checks - Table 1; Junction Boxes; Cold Leads; Heat Tracer Entries Earthing Requirements; Jointing, Splicing & Modifications; End Terminations; Conductor CABLE Installation PROCEDURE.
temperature of the heater, a process temperature limit, or, if in a hazardous area, the Temperature Class of the hazard. There are three ways of protecting the heat tracing system from exceeding the high-limit temperature:-1. The use of inherently temperature-safe heat tracers (self-regulating trace heaters having a PTC
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