Item	Test Items	Standard requirements	Test Results	Conclusion
Prefabricated (cold-shrinkable) outdoor terminal/intermediate joint for 27.5kV electrified railway	Power frequency withstand voltage test	124kV, 5min no flashover, no breakdown	124kV, 5min, no breakdown or flashover of the combined sample	Pass
	Power frequency withstand voltage test under rain	110kV, 1min no flashover, no breakdown	110kV, 1min, no breakdown or flashover of the combined sample	Pass
	Partial discharge test at room temperature	48kV discharged power is not more than 5pc	The discharge capacity of each phase of the combined sample at 48kV is not more than 1.7pc.	Pass
	Impulse voltage test at high temperature	± 250kV 10 times each without breakdown or flashover	± 250KV 10 times each. No breakdown or flashover of each phase of the combined sample	Pass
	Constant pressure load cycle test in air	69kV voltage and conductor heating to temperature 90-100 ℃. A total of 60 cycles without breakdown and flashover	69kV voltage and conductor temperature 90-100 ℃, a total of 60 cycles, the combination of samples are not broken down, not flashover	Pass

27.5kV Railway-Specific Cold Shrink Cable Accessories