Cableizer ®

Change volume insulation

Assuming all material between conductor and outer diameter is insulation material. The formula is only valid for single-core cables

Symbol
$\delta V_{i}$
Unit
mm$^3$
Formulas
$V_{i} 3\chi_{i} \left(\theta_{max}-\theta_{pull}\right)$max increase
$V_{i} 3\chi_{i} \left(\theta_{min}-\theta_{pull}\right)$max decrease
Related
$\chi_{i}$
Linear thermal expansion coefficient insulation material [1/K]
$\theta_{max}$
Highest temperature of conductor over a load variation period [°C]
$\theta_{min}$
Min temperature conductor [°C]
$\theta_{pull}$
Ambient temperature during installation [°C]
$V_{i}$
Volume insulation [mm$^3$]