HD110301-1 Rev2
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FIG. 3 – TYPICAL BURIED PIPING SYSTEM
Application Requirements
The system complies with Drexan HeatTracer design and installation requirements for buried piping
given the following conditions are met:
The line is buried at least 2 feet/0.7 m deep
All heating cable connections are made above ground
The power connection and end seal connections are made above grade in Drexan HeatTracer
connection kits
Heating cable is protected from the pipe to the power connection box in CSA certified water-
sealed conduit with a minimum diameter of ¾” suitable for the location
The system is controlled by a Controller with integrated ground fault protection with alarm
contacts connected to a fire control panel
Closed cell waterproof thermal insulation with fire retardant waterproof covering approved
for direct burial is used over the cable and pipe
Heating cable is installed per manufacturer’s instructions with approved connection kits
Approvals
CSA / UL (CUS) certified for non-hazardous locations.
