# Thermal resistivity of jacket material

Typical values for different materials are listed below.

Values are taken from IEC 60287-2-1 Ed.2.0 with following additions or deviations:

• Value for Polypropylene (PP) is based on the minimal value of thermal conductivity (0.17 to 0.22) given in the book 'Polypropylene - The Definitive Users Guide and Databook', Plastics Design Library, 1998. whereas a range of 0.10 to 0.23 is given by professionalplastics.com
• Values for silicone rubber (SiR) are taken from shinetsusilicone-global.com
• The value for chlorosulphonated polyethylene (CSM) is taken from the data sheet of Hypalon from the chemical conpany metz.net.au

Symbol
$\rho_j$
Unit
K.m/W
Related
Choices
MaterialValue
PE3.5
HDPE3.5
PVC5.0 (U_n <= 30kV)
6.0 (U_n > 30kV)
POC5.0
PP5.9
SiR5.0
FRNC3.5
CR5.5
CSM9.1
CJ6.0
RSP6.0
BIT6.0