Ouellet OWS - Manual (Page 13)

13
4.3. Clearance and bypass distances
• Install heating cables at a minimum distance of 6” (152 mm) from the edge of the surface to be heated or from
an exterior wall.
Note: For embedding in asphalt (without curbs), install the heating cable at 12” (305 mm) from the edge.
• Install heating cables at a minimum distance of 6” (152 mm) from fixed elements.
Note: Plan for future elements which could be added afterwards (handrails, lampposts, etc...).
• Always maintain a minimum distance of 3” (76 mm) between heating cables.
• Install heating cables at a minimum distance of 0.5” (13 mm) from any uncovered combustible surface.
• To change directions or bypass obstacles, cut flexible strips and rotate the mat.
• To adjust cables to a smaller surface than the width of the mat, detach a suitable section of cable length from
the flexible strips to cover the surface to be heated.
• Cable runs must not exceed a 10’ (3 m) length.
6'' (152 mm) from the edge of the surface
12'' (305 mm) from the edge
of an asphalt coated surface without curb
6'' (152 mm) from fixed element
6'' (152 mm) from
exterior wall
180° change of direction
90° Change of direction
Detached cable
for small surface
Figure 5: Cable configuration and clearances
Never cross, overlap or bundle cables.
CAUTION!