Electrical stress (kV/mm)

Aging (hours)

AEAF (kV/mm-hr)

2

150

AEAF1 = 300

2

300

AEAF2 = 600

4

150

2

450

AEAF3 = 900

6

150

2

600

AEAF4 = 1200

4

300

2

750

AEAF5 = 1500

4

450

AEAF6 = 1800

6

300

4

600

AEAF7 = 2400

6

450

AEAF8 = 2700

4

750

AEAF9 = 3000

6

600

AEAF10 = 3600

6

750

AEAF11 = 4500