Ouellet OWS - Manual (Page 20)

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5.3. Brick, concrete or natural stone paving
• Be sure to have the site cleared of any sharp objects that could damage cables during the installation process.
• Lay the first layer of stone dust over the granular base a minimum thickness of 1” (25 mm). Do not install the
cable directly over the granular base.
• Indicate, with spray paint, the position of fixed elements to be bypassed.
Note: Also plan for future elements that could be added afterwards.
• Install the cold lead conduit at the planned location. The opening of the conduit should be embedded.
Note: Cold lead and ground sensor conduits must be separated by a minimum of 6” (152 mm) where exiting the
heated surface.
• Insert the cold lead in the conduit.
Not
e: The cold lead can be shortened if needed. Be sure to leave the nameplate near the connection.
• Keep the end of the cold lead dry and protected, throughout the entire installation process.
• Place the mechanical joint between the cold lead and heating cable at a minimum of 6” (152 mm) inside the
surface to be heated. The mechanical joint should be entirely embedded. The conduit must protect the cold
lead all the way inside the surface to be heated. The exit point of the conduit must be completely embedded.
Never bend the mechanical joint. Never insert the mechanical joint or any part of the heating cable inside the
conduit.
• Unroll the mat as specified in the installation plan.
• Attach the mat to the base layer using galvanized steel templates (see section 4.4). Be sure to firmly anchor the
mat to the framework to prevent any movement when embedding.
Note: Conform to clearances during the entire installation process (see section 4.3).
• Perform insulation and resistance tests after the installation of the cable and before laying the second coat of
stone dust. Enter results in the measurement table.
• Lay a second layer of stone dust over the heating cable a minimum thickness of 1” (25 mm). Be sure not to
move the cable during the second application of stone dust.
• Install paving and stabilize the installation using a plate compactor. Fill all joints in compliance with the
manufacturer’s recommendations.
• Perform insulation and resistance tests after the laying of paving is complete and enter results in the
measurement table.
Do not roll over uncovered cables with any equipment.
Special precautions should be taken while walking over the cable
and while handling sharp tools during the installation process.
CAUTION!
Work stages should be planned so the cable does not remain
uncovered between the installation and the coating stages.
Where the project encounters any delay between these stages,
special precautions should be taken to mechanically protect
the cable against any breakage.
CAUTION!