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What is a cable? (Flame retardants
Intervene in fire cycle (Char…
What is a cable?
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Classification [1]
Thermoset
When reaching decomposition temperature before melting, will degrade irreversible if exposed to suff. high T
- tend to withstand higher T en burn at lower rate
- covalently bound to each other
Thermoplastic
Can be heated, melted and cooled to solid form
- long polymer molecule attract to each other but no direct bounding or linking between the molecules
Primary characteristics to distinguish cables
- Cable jacket formulation
- Conductor insulator
- Multiple vs. single conductor
- Conductor size
- Flammable and non-flammable material mass ratio's
Components of a cable [2]
- Conductor with insulator
- \(\neq \) conductors wounded together
- Filler material
- Cable sheath
- Each comp \(\neq\) materials
Geometry:
- cylindrical non-uniform structure
\(\rightarrow\) impossible to model
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