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1
General Information
1.2
Safety Guidelines
The safety and reliability of any heat tracing
system depends on both the quality of the
products selected and the manner in which
they are installed and maintained. Incorrect
design, handling, installation, or maintenance
of any of the system components can cause
damage to the heating cable system, and may
result in system failure, electric shock, or fire.
The guidelines and instructions contained in this
manual are important. Follow them carefully to
minimize these risks and to ensure that the MI
system performs reliably.
1.3
Electrical Codes
Refer to the appropriate sections of the National
Electrical Code (NEC) and Canadian Electrical
Code (CEC) regarding the field repair or
modification of MI electrical heat tracing cables.
The repair of MI heat tracing cables must comply
with all national and local codes.
1.4
Heating Cable Configurations
The Field Repair Kit includes two joints and an
end cap to allow for field repair or modification of
the heating cable configurations shown in
Table 1.
TABLE 1: MI HEATING CABLE CONFIGURATION
MI cable
Number of
design
conductors
B
single conductor
(61 series)
D
dual conductor
(32 & 62 series)
E
dual conductor
(32 & 62 series)
A sectional view of a Design D MI heating cable is
shown in Figure 1. All of the cables include both
a heated section and one or two non-heating
cold lead sections. These sections are joined at
the hot-cold joint where the heating element is
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Configuration
Cold lead
length
Heated length
Cold lead
length
Heated
Cold lead
length
length
Cold lead length
Heated
Cold lead
length
length
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