6.2.4 Insulations
The 2008 National Electrical Code (NEC), Table 310-13A, “Conductor
Application and Insulations Rated 600 Volts” lists insulation types including
the trade names (type letter), polymer name, maximum operating temperature,
sizes of conductors, thickness of insulation in mils, jackets, and application.
Similarly, NEC Table 310-13C, lists similar information for conductor
application and insulation rated 2001 V and higher. In general, cables are
classifi ed according to their insulation system as follows:
1. Paper
2. Varnished cambric
3. Asbestos
4. Rubber and rubber-like compounds (polymeric insulation)
5. Mineral-insulated (MI) cables
6. Tefl on
Each of these materials has unique characteristics that render it suitable for a
given application.
6.2.4 Insulations
The 2008 National Electrical Code (NEC), Table 310-13A, “Conductor
Application and Insulations Rated 600 Volts” lists insulation types including
the trade names (type letter), polymer name, maximum operating temperature,
sizes of conductors, thickness of insulation in mils, jackets, and application.
Similarly, NEC Table 310-13C, lists similar information for conductor
application and insulation rated 2001 V and higher. In general, cables are
classifi ed according to their insulation system as follows:
1. Paper
2. Varnished cambric
3. Asbestos
4. Rubber and rubber-like compounds (polymeric insulation)
5. Mineral-insulated (MI) cables
6. Tefl on
Each of these materials has unique characteristics that render it suitable for a
given application.
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