... and live parts, and 500VAC applied between two opened contacts, for 1 minute, no flashover or breakdown.2. Endurance test: Number of ... ,000 cycles, the test shall be carried out under 1.15 VR for 200 cycles, the balance 9800 cycles should be carried ... :Relative humidity(%): 91-95%Temperature: (20-30+/-1) C degreeKeep samples under this environment for 48 hours. No damage so as to ...