High-Temperature Superconducting Cable Design Based on Individual Insulated Conductors

Table 1

Important properties for selected heat shrink materials.

Material	Shrink temp (°C)	Dielectric strength (kV/mm)	Relative permittivity	CTE (µm/m-K)	Thermal conductivity (W/m-K)
PTFE	346–354	7–24	2.1	126–180	0.17–0.30
FEP	204–216	20–79	2.0–2.1	100–135	0.19–0.25
PEEK	330–360	20	2.2–2.8	47	0.25
PET	85–190	17	3.3	59	0.15
Ideal heat shrink	<175	As high as possible	1	10–20	As high as possible