表3  电气强度

平均厚度mm	电气强度kV/mm		平均厚度mm	电气强度kV/mm		平均厚度mm	电气强度kV/mm
	F3242	F3248		F3242	F3248		F3242	F3248
0.4	≥16.9	≥20.3	1.0	≥14.2	≥17.0	2.2	≥12.1	≥14.5
0.5	≥16.1	≥19.3	1.2	≥13.7	≥16.4	2.4	≥11.9	≥14.3
0.6	≥15.6	≥18.7	1.4	≥13.2	≥15.8	2.5	≥11.7	≥14.0
0.7	≥15.2	≥18.2	1.6	≥13.0	≥15.6	2.6	≥11.6	≥13.9
0.8	≥14.8	≥17.8	1.8	≥12.8	≥15.4	2.8	≥11.5	≥13.8
0.9	≥14.5	≥17.4	2.0	≥12.4	≥14.9	3.0	≥11.5	≥13.8