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Electric Heat Tracing and what is working?

Published on 26 Jan 2015 by Lana Hajovsky


Strategic Success Factors

  • Front-End plan the System and System Planning Checklist
  • Use  Company Guideline Checklist as  a guide
  • Get the manufacturer involved
  • Design by manufacturer (unit price/supplier alliance)
  • If the circuit has importance, provide monitoring
  • Prepare specification for vendor design
  • Use alliance suppliers (e.g. Raychem/Thermon)
  • Use Company or Raychem/Thermon installation details
  • Prepare specification for contract installation
  • All installers/maintenance personnel need to be properly trained
  • Use generic checklists as part of system planning and QA
  • Use Company Standard for commissioning/maintenance
  • Use Electrical Heating Source book for a working set of specifications, checklists and resource information

Detailed Successes

  • Trained installers in the manufacturing methods over the years, Manufacture Installation Details and project documentation has made a big difference.
  • Quality Assurance of heat trace installations has provided the industry high quality installations that will provide long-term service
  • For lump-sum bid packages, if final design is not available, provide a set of installation details, sample drawings, PSR, CCS and installation details along with an estimate of circuits/average length to obtain a good unit price
  • Where water in components boxes is a problem, the use of Waterguard Gel at the heater and conduit entrances has eliminated problems associated with water engress into boxes
  • Real-time (proportional) and auto-cycling controls together with common-panel alarms can greatly reduce incidents where the circuit was already out-of­ service when the heater was needed
  • The close working relationship between many Companies in the industry and the two suppliers (Raychem/Thermon) has extended into standard making organizations and product development. The net result is improved systems within industry

Even when the Electrical Tracing systems is working as designed and installed, damaging or missing Thermal Insulation is still the #1 cause of freeze-ups and failure to maintain temperature (per industry).



Tags: Electric Heat Trace

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Electric Heat Trace Systems Maintenance

Published on 12 Jan 2015 by Lana Hajovsky
Periodic operational checks on electric heat tracing circuits are essential for maintaining reliable, trouble-free operation of the process. It is recommended that these checks be scheduled at regular intervals depending on the importance and usage of the heat tracing to the process or plant operation.