[Retracted] Aging Law and Life Evaluation Model of Cable Insulation Based on WOA-SVR

Table 4

Comparison of diagnostic methods.

Testing method	Sensitivity	Scope of test	Spend
Dynamic mechanical analysis	High	Local	High
Ultrasonic sound velocity and attenuation	High	Local	Low
Elongation at break measurement	High	Local	Low
Time city-frequency city reflection method	High	Overall	High
Insulation resistance method	Low	Overall	Low