Speciffcation	Usage scale	L(mm)	L1(mm)	L0(mm)	D(mm)	d(mm)
70KN	10KV-66KV	98-105	57-60	104	28-29	18
100KN	10KV-330KV	120	79	124	28-32	18
160-210KN	220KV-550KV	170	114	174	36-40	24-28