Three umbrella-type disc suspension glass insulator  U160BP

		Insulator type	U160BP/155T	U160BP/170T
		Mechanical failure load KN≥	160	160
		Nominal structure height H	155	170
		Nominal diameter D	320	320
		Minimum nominal creepage distance L	550	550
		Connection model mark	20	20
		Locking pin type	R	R

Three umbrella-type disc suspension glass insulator  U210BP、U240BP、U300BP

		Insulator type	U210BP/170T	U240BP/170T	U300BP/195T
		Mechanical failure load KN≥	210	240	300
		Nominal structure height H	170	170	195
		Nominal diameter D	320	320	380
		Minimum nominal creepage distance L	550	550	635
		Connection model mark	20	24	24
		Locking pin type	R	R	R

Three umbrella-type disc suspension glass insulator  U420BP、U550BP

		Insulator type	U420BP/205T	U550BP/240T
		Mechanical failure load KN≥	420	550
		Nominal structure height H	205	240
		Nominal diameter D	380	380
		Minimum nominal creepage distance L	635	635
		Connection model mark	28	32
		Locking pin type	R	R