Numerical Study on Electromagnetic Coupled Heat Transfer and Ultrasonic Propagation in GIS Busbar Chamber

Table 4

Typical physical properties of different components for GIS busbar validation model [24].

Component	Material	Thermal conductivity (W/(m·K))	Heat capacity (J/(kg·K))	Electrical conductivity (S/m)
GIS shell	Aluminium alloy A5083P	120	900	3.774 × 10^7
Busbar conductors	Aluminium alloy 6063	201	900	3.030 × 10^7
Insulating gas	SF6	λ (T)	cp (T)	0

; ; where T is the temperature, K; λ₀ is the thermal conductivity of SF6 at 0.1 MPa and W/(m·K); T_env is the ambient temperature, K; and S is the Sutherland constant of SF6, K.