®
®
The gross heat of combustion value (or energy value or calorific value) is used to quantify the energy content of a cable in case of a fire.
The standard gross heat of combustion is the energy liberated when a substance undergoes complete combustion with oxygen at standard conditions (25°C and 1 bar). In thermodynamical terms it is the negative of the enthalpy change for the combustion reaction. The chemical reaction is typically a hydrocarbon or other organic molecule reacting with oxygen to form carbon dioxide and water and release heat. It can be calculated from the standard enthalpy of formation ($\Delta$Hf°) of the substances involved in the reaction, given as tabulated values. The gross heat of combustion is measured in a calibrated oxygen bomb calorimeter. It is usually utilized to quantify the performance of a fuel in a combustion system.
Sources:
Note, not all values listed below can be selected in the cable editor.
| Id | Value | Reference |
|---|---|---|
| PVC | 18.0 | 17.95-20.0 |
| PE | 44.6 | 44.6-47.7 |
| sPVC | 18.0 | ≈PVC |
| sPE | 44.6 | ≈PE |
| LDPE | 44.6 | 44.6-47.74 |
| MDPE | 46.4 | 44.6-47.74 |
| HDPE | 47.74 | 44.6-47.74 |
| XLPE | 44.6 | 44.6-47.74 |
| XLPEf | 47.74 | 44.6-47.74 |
| PP | 45.8 | 45.8-46.0 |
| PPLP | 40.9 | 50/50% paper/PP, paper 50% soaked oil/rosin |
| PUR | 31.6 | |
| PS | 42.0 | 41.6-43.65 |
| PA | 31.4 | 31.4-33.0 |
| STPe | 32.6 | 32.6-33.9 |
| POC | 33.5 | 33.5-46.05 |
| ETFE | 13.8 | |
| PET | 24.13 | 21.6-24.13 |
| PTFE | 5.0 | |
| HFFR | 20.0 | 15.0-25.0 |
| FRNC | 13.0 | |
| NR | 43.1 | 43.1-45.0 |
| EPR | 30.0 | 25.0-33.9 |
| EPDM | 30.0 | ≈EPR |
| EVA | 22.0 | |
| XHF | 45.0 | ≈PE |
| HFS | 45.0 | ≈PE |
| CR | 23.7 | 19.5-23.7 |
| CSM | 15.4 | |
| IIR | 43.8 | |
| PIB | 47.0 | |
| OilP | 35.04 | paper 50% soaked with mineral oil (38.07) |
| Mass | 36.0 | paper 50% soaked with oil/rosin (ca. 40) |
| CJ | 34.28 | 60% jute + 40% PP |
| RSP | 43.8 | IIR |
| BIT | 40.95 | Bitumen |
| tape | 20.0 | estimation |
| SiR | 15.5 | 15.5-22.6 |
| fPOC | 16.75 | 50% of POC |
| fPP | 22.9 | 50% of PP |
| fPE | 22.3 | 50% of PE |
| fPVC | 9.0 | 50% of PVC |
| PRod | 15.2 | 80% of PVC |
| PTube | 15.2 | 80% of PVC |
| OilD | 35.04 | assuming similar to oil impregnated paper |
| Jute | 17.0 | 17.0-20.0 |
| TY | 18.0 | 17.0-20.0 |
| Paper | 16.0 | |
| Air | 8.9 |