Specific isobaric volumetric heat capacity of filler material per K at 20°C

The values are taken from standard IEC 853-2 Ed.1.0 plus following additions:

- Values for fibrous polypropylene (FPP) and polyolefin copolymers (FPOC) are assumed to be 70% of the corresponding solid material (refer to $σ_ab$
- Plastic rods are considered to have 30% air-space, the rest PVC
- Plastic tubes are considered to have 50% air-space, the rest PVC
- Twisted yarns are assumed to be similar to jute
- Tapes are assumed to be similar to jute

$\sigma_{\mathrm{f}}$

J/K.m³

Material | Value |
---|---|

FPOC | 1680000.0 |

FPP | 1260000.0 |

PVC | 1700000.0 |

PE | 2400000.0 |

PR | 1190000.0 |

PT | 850000.0 |

TY | 2000000.0 |

Jute | 2000000.0 |

tape | 2000000.0 |

Air | 1200.0 |

Ot | 2000000.0 |