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Heating Cable Repair
44 | nVent.com
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Water soaked rag
Figure 65: Wrap end cap with water soaked rag
Note: If the Megohmmeter reading declines,
remove wet rag and visually inspect end cap for
pinholes. If pinholes exist, dry out cable according
to procedure in Appendix D, being careful not to
trap any moisture. Any remaining moisture will
escape through the pinhole. Once the moisture
is removed, touch up the solder as necessary
and retest. If still low or if no pinholes are visible
replace end cap.
CAUTION: Endcap will be hot. Do not touch endcap
or cable with bare hands.
Check resistance of heating cable using
an ohmmeter – it should be within 10% of
specifications. If open circuit, cut off end cap and
repeat procedure.
The finished end cap is shown below.
Figure 66: Completed end cap
If heat shrink tubing (for copper sheath cables only)
was used above, follow instructions in Appendix F to
complete heat shrink installation.