Attach hot-cold joint to end of pipe nearest the power supply
point, and the other end of heating cable to the other end of the
pipe. Support hot-cold joint by attaching cable with pipe straps/
banding at a distance of 6 inches
(150 mm) on either side of joint. Secure joint itself to pipe with a
pipe strap/band as shown in Figure 10.
Fasten middle of heating cable to the halfway point of pipe leaving
equal slack on either side.
Attach heating cables to pipe with pipe straps/banding,
tie wire or wire cloth band at 12-18 inches (300-450 mm)
intervals. Tie wire should be snug, but should not cut or indent
the sheath.
The use of tie wire with softer sheath mi heating cables (like
copper hC and cupro-nickel hD) should be avoided, as the tie
wire can damage the heating cable surface over time, use wire
cloth band wherever possible.
figure 11: allowances for valves, flanges, and pipe supports
Use tie wire or wire cloth band to hold cable to irregularly shaped
objects such as valves or pipe supports.
figure 12: installing cable on valves and pipe supports
Allow cable to wave along pipe as per Figure 14 und 15. This
allows for expansion and contraction of the heating cable as it
heats up and cools down. Use up excess cable by waving along
pipe and increasing amount used at each pipe support.
note: Do not use up excess cable at one location.
Distribute equally along pipe.
End
cap
Hot-cold joint
Tie wire /
wire cloth band
Stainless steel pipe strap, banding,
tie wire, wire cloth band, etc.
Leave large
bending radius (typ.)
End
cap
End
cap
Hot-cold joint
Tie wire /
wire cloth band
Stainless steel pipe strap, banding,
tie wire, wire cloth band, etc.
Leave large
bending radius (typ.)
End
cap
16
