BS EN 50363-4-1:2005

This standard BS EN 50363-4-1:2005 Insulating, sheathing and covering materials for low voltage energy cables is classified in these ICS categories:

• 29.035.20 Plastics and rubber insulating materials

This part of EN 50363 specifies the requirements for the physical properties of the PVC sheathing compounds given in Table 1. The relevant test methods are given in EN 60811 series.

NOTE This part of EN 50363 is to be read in conjunction with EN 50363-0.

Table 1 – Types of PVC sheathing compound

Type	Maximum cable operating temperature °C	General application
TM 1	70	General purpose for fixed installation cables. May be suitable for oversheathing of cables with a metallic layer operating at a maximum conductor temperature of 80 °C
TM 2	70	Flexible general purpose
TM 3	90	Flexible for high temperature use
TM 4	70	Flexible for low temperature use
TM 5	70	Oil-resistant flexible