XWP-160 insulators XWP-160 is a dedicated transmission overhead lines Disc Suspension Insulators, stretched mechanical failure load of not less than 160KN, nominal structural height: 155,160,170 (mm), insulation Nominal diameter: 280, 300 (mm), the minimum nominal creepage distance: 400,450 (mm). I perennial mass production XWP-160, available from stock, complete model, national distribution, low price and good reputation, quality assurance! Welcome to inquire Order! Technical standards: GB / T 1001.1-2003 "nominal voltage above 1000V overhead line insulators - Part 1: AC system with porcelain or glass insulator units - Definitions, test methods and acceptance criteria" GB / T 4056-2008 "insulator ball and socket connection size string element "GB / T 7253-1987" pin type string insulator units - Dimensions and characteristics "JB 9681-1999" tolerance high-voltage lines Disc Suspension Insulators "GB / T 7253-2005" mark said voltage greater than 1000V AC system overhead line insulators Ceramic or glass insulator units - characteristics of the disc-shaped suspension insulator element "Model Description: GB / T 7253-1987 standard and JB 9681-1999 (domestic universal model): XP-- common type Disc Suspension Insulators; XWP-- Fog Disc Suspension Insulators; XHP-- bell umbrella Fog Disc Suspension Insulators; XMP-- straw hat Fog Disc Suspension porcelain insulators; digital design sequence number 1,2,3 ...; "-" after the number is rated electromechanical failing load value, kN; kN behind the value of C is groove connection structure, T is a ball cap - flat-pin connector structure , ball and socket connection structure does not represent. GB / T 7253-2005 standard (million Carbo porcelain models): U-- suspension insulator; U after the number indicates electromechanical or mechanical failing load values ??specified, kN; B or C indicates a ball or channel connection; S or L for short or long structural height, M is long, EL represents long; P represents large creepage distance.