Model Description:

GB/T 7253-1987 and JB 9681-1999 Standards (Old Model)

XP - Standard Type Disc Shaped Suspended Porcelain Insulator

XWP - Durable Fouling-Resistant Spherical Suspended Porcelain Insulator

XHP -污染耐久盘形悬挂式瓷绝缘子

XMP - Grass Hat Type Foul-Tolerant Dish Shaped Suspended Ceramic Insulator

Numbers 1, 2, 3... are the design sequence numbers.

"—" followed by the number indicates the rated mechanical and electrical breakdown load value, kN.

The 'C' following the kN value indicates a slot-type connection structure, the 'T' denotes a socket cap-slab foot connection structure, and the ball joint structure is not represented.

GB/T 7253-2005 Standard Specification (New Model):

U - Suspended Insulator

The number following the "U" indicates the specified mechanical or mechanical destruction load value, in kN.

B or C indicates ball socket or slot-type connections.

S or L indicates short or long structural height, M represents medium-long, and EL denotes extra-long.

P indicates the large pitch.

 Note: The naming method for insulator codes in the tender documents of State Grid Corporation is as follows:

U70B/146: U—suspended type, 70kN, B—spherical socket connection, standard type, 146—structural height

2. U100BP/155D: U—Suspended, 100kN, B—Socket joint, P—Corrosion-resistant, 155—Structure height, D—Double umbrella

3. U160BP/170T: U—suspended, 160kN, B—spherical socket connection, P—anti-corrosive type, 170—structure height, T—triple canopy

4. U70C(N)/200: U-hanging type, 70kN, C-slot connection, CN-tension-resistant, earth wire insulator.