# Volumetric heat capacity of insulation material

The values for the specific isobaric volumetric heat capacity of insulation material per K at 20°C are taken from standard IEC 853-2 Ed.1.0 where available with the following additions:

• Semi-conducting screening materials are assumed to have the same properties as the insulation.
• Values for Polypropylene (PP) and Silicone rubber (SiR) are taken from professionalplastics.com
• Value for PP laminated paper (PPLP) is assumed to be slightly higher than for paper insulation because the value for oil is given with 1.7 whereas the value for polypropylene lies between 1.7 and 1.9.
• Value for Ethylene vinyl acetate (EVA) is defined as 2200 J/kg.K * 0.955 kg/m3 acc. plasticfantasticlibrary.com
• .

Symbol
$\sigma_i$
Unit
J/(K.m$^3$)
Related
Used in
$Q_{ct}$
$Q_{it}$
$Q_{it1}$
$Q_{it2}$
Choices
MaterialValue
PE2400000.0
HDPE2400000.0
XLPE2400000.0
XLPEf2400000.0
PVC1700000.0
EPR2000000.0
IIR2000000.0
PPLP2000000.0
Mass2000000.0
OilP2000000.0
PP1800000.0
SiR1400000.0
EVA2100000.0