Project requirements · Fire
Toxicity of fire gases
The combustion gases of the cable materials are below a toxicity index.
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Constructions that meet it
- Low-toxicity halogen-free compounds: changes no layer: a property of the sheath compound. Low-toxicity halogen-free compounds (no PVC, no fluoropolymers) (LSZH / EN 50306 S1, S2 sheaths). Drawbacks: Compound property.
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Tests
- EN 50305 clause 9.2 (rail): toxicity index ITC at 800 °C (CO, CO2, NOx, HCN, SO2 ...). Pass: EN 45545-2 R15/R16: ITC ≤ 10 (HL1), ≤ 10 (HL2), ≤ 6 (HL3)
- NES 713 / Def Stan 02-713 (UK defence, marine): toxicity index of small specimens. Pass: set by the specification (value not found)
- NF X70-100 (France): toxicity analysis. Pass: not found
How specifications state it
Rare outside rail, defence and marine; named by test and index limit.
Where it is asked for
- rolling stock
- naval ships
- metro and tunnels
Sources
- Currenta, EN 45545-2 Testing of cables, Table 1 (EN 50305 9.2 at 800 °C, ITC) (quoted by others)
- Lynxeo 'Stammliste Normen' (Def Stan 02-713 toxicity index), via search results (quoted by others)