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 (ΔHf°) 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.
The sources are:
Note: Not all values listed below can be selected in the cable editor.
|PPLP||40.9||50/50% paper/PP, paper 50% soaked oil/rosin|
|Oil||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|
|FPOC||16.75||50% of POC|
|FPP||22.9||50% of PP|
|PR||15.2||80% of PVC|
|PT||15.2||80% of PVC|