Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator
Anti-fouling porcelain insulator

Tunisia Anti-fouling porcelain insulator

Manufacturer-supplied / Professionally manufactured / Consistently high quality

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TunisiaPorcelain insulator

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Product Description

Product Overview

Disc-type suspension insulators, often referred to as disc insulators, are used in AC overhead power lines, substations, and electrified railway catenary systems with rated voltages exceeding 1000 V and frequencies not exceeding 100 Hz, serving as insulating and supporting elements. Due to their structural characteristics, these insulators exhibit superior electromechanical strength. Moreover, by connecting multiple units in series, it is possible to obtain insulator strings that meet the required voltage levels; consequently, they are widely employed on high‑voltage, extra‑high‑voltage, and ultra‑high‑voltage transmission lines, making them essential line insulators. Disc insulators are typically operated in string configurations; therefore, individual insulator units do not have a fixed rated voltage but are classified according to their electromechanical breaking load into grades of 40, 70, 100, 120, 160, and 210 kN.

Disc-type suspension insulators are assembled by cementing an iron cap, an insulating body (case), and a steel foot together using a cementitious adhesive. Depending on application requirements, they are classified into two types: ball‑and‑socket connections and groove‑type connections, and are available in voltage ratings of 240 kV, 300 kV, 420 kV (400 kV), and 550 kV (530 kV).

Disc-type suspension insulators are mainly classified into three major types: standard, bell‑shaped, and aerodynamic. The aerodynamic type is further subdivided into single‑shed, double‑shed, and triple‑shed configurations.

Technical Standard

GBT 1001.1-2003 “Overhead Line Insulators for Nominal Voltages Above 1000 V — Part 1: Porcelain or Glass Insulator Units for AC Systems — Definitions, Test Methods, and Acceptance Criteria”

GB/T 4056-2008 “Dimensions of Ball-and-Socket Connections for Insulator String Components”

GB/T 7253-2005 “Overhead Line Insulators with Nominal Voltage Above 1000 V — Porcelain or Glass Insulator Units for AC Systems — Characteristics of Disc Suspension Insulator Units”

Production Capacity

交流 disc-type suspension porcelain insulators (double-shed and triple-shed types)

Model number U70BP/155D U70BP/160D U70BP/146D U70CP/146D U70BCP/146D U70BCP/170D U70BP/160D U70BP/146D U100BP/160D U100BP/160D U100CP/160D U100BP/146D
Drawing number 10 10 10 11 12 12 10 10 10 10 11 10
Structural height H mm 155 160 146 146 146 170 160 146 160 160 160 146
Nominal diameter D mm 255 255 255 255 255 255 280 280 255 280 280 280
Nominal creepage distance L mm 400 400 400 400 400 400 450 450 400 450 450 450
Connection marker 16W 16W 16W 16C 16C 16C 16W 16W 16W 16W 16C 16W
Rated electromechanical breaking load, kN 70 70 70 70 70 70 70 70 100 100 100 100
Routine tensile load kN 35 35 35 35 35 35 35 35 50 50 50 50
Power-frequency withstand voltage test, kV Wet 42 42 42 42 42 42 42 42 42 45 45 45
Dry 80 80 80 80 80 80 80 80 80 80 80 80
Lightning impulse withstand voltage test, kV 120 120 120 120 120 120 120 120 120 120 120 120
Power-frequency withstand voltage test, kV 120 120 120 120 120 120 120 120 120 120 120 120
Radio interference voltage Ground test voltage kV 10 10 10 10 10 10 10 10 10 10 10 10
Maximum RIV (1 MHz) kV 50 50 50 50 50 50 50 50 50 50 50 50
Product quality kg 5.9 5.9 5.9 5.9 5.9 5.9 6.7 6.7 7.3 7.9 7.9 8.1

 

Model number U120BP/160D U120BP/160D U120BP/160D U120BP/146D U160BP/146D U160BP/155D U160BP/170D U210BP/170D U210BP/170D U210BP/170D
Drawing number 10 10 11 10 10 10 10 10 10 10
Structural height H mm 160 160 160 146 160 155 170 170 170 170
Nominal diameter D mm 255 280 280 280 280 300 340 300 300 350
Nominal creepage distance L mm 400 450 450 450 400 450 525 450 450 525
Connection marker 16W 16W 16C 16W 20R 20R 20R 24R 20R 20/24R
Rated electromechanical breaking load, kN 120 120 120 120 160 160 160 210 210 210
Routine tensile load kN 60 60 60 60 80 80 80 105 105 105
Power-frequency withstand voltage test, kV Wet 42 45 45 45 45 45 50 45 45 50
Dry 80 80 80 80 80 80 90 80 80 90
Lightning impulse withstand voltage test, kV 120 120 120 120 130 130 135 130 130 135
Power-frequency withstand voltage test, kV 120 120 120 120 120 120 130 130 130 130
Radio interference voltage Ground test voltage kV 10 10 10 10 10 10 10 10 10 10
Maximum RIV (1 MHz) kV 50 50 50 50 50 50 50 50 50 50
Product quality kg 7.1 7.7 7.7 7.5 8.2 9.1 10.9 11.7 12 13.6

 

Model number U120BP/160D U120BP/160D U120BP/160D U120BP/146D U160BP/146D U160BP/155D U160BP/170D U210BP/170D U210BP/170D U210BP/170D U240BP/170D U240BP/170D
Drawing number 10 10 11 10 10 10 10 10 10 10 10 10
Structural height H mm 160 160 160 146 160 155 170 170 170 170 170 170
Nominal diameter D mm 255 280 280 280 280 300 340 300 300 350 350 360
Nominal creepage distance L mm 400 450 450 450 400 450 525 450 450 525 525 525
Connection marker 16W 16W 16C 16W 20R 20R 20R 24R 20R 20/24R 24R 24R
Rated electromechanical breaking load, kN 120 120 120 120 160 160 160 210 210 210 240 240
Routine tensile load kN 60 60 60 60 80 80 80 105 105 105 120 120
Power-frequency withstand voltage test, kV Wet 42 45 45 45 45 45 50 45 45 50 50 50
Dry 80 80 80 80 80 80 90 80 80 90 90 90
Lightning impulse withstand voltage test, kV 120 120 120 120 130 130 135 130 130 135 135 135
Power-frequency withstand voltage test, kV 120 120 120 120 120 120 130 130 130 130 130 130
Radio interference voltage Ground test voltage kV 10 10 10 10 10 10 10 10 10 10 10 10
Maximum RIV (1 MHz) kV 50 50 50 50 50 50 50 50 50 50 50 50
Product quality kg 7.1 7.7 7.7 7.5 8.2 9.1 10.9 11.7 12 13.6 14.4 14.4

 

Model number U300BP/195D U70BP/155T U70BP/160T U100BP/170T U100BP/155T U120BP/170T U120BP/155T U160BP/170T U160BP/155T U210BP/170T U240BP/170T U300BP/170T
Drawing number 10 13 13 13 13 13 13 13 13 13 13 13
Structural height H mm 195 155 160 170 155 170 155 170 155 170 170 195
Nominal diameter D mm 330 320 320 320 320 320 320 330 330 340 360 360
Nominal creepage distance L mm 480 550 550 545 545 545 545 545 545 545 545 550
Connection marker 24R 16W 16W 16W 16W 16W 16W 20R 20R 20/24R 24R 24R
Rated electromechanical breaking load, kN 300 70 70 100 100 120 120 160 160 210 240 300
Routine tensile load kN 150 35 35 50 50 60 60 80 80 105 120 150
Power-frequency withstand voltage test, kV Wet 47 45 45 45 45 45 45 50 50 50 50 50
Dry 85 80 80 80 80 80 80 90 90 90 90 90
Lightning impulse withstand voltage test, kV 130 120 120 130 130 130 130 130 130 130 130 130
Power-frequency withstand voltage test, kV 130 120 120 120 120 120 120 130 130 130 130 130
Radio interference voltage Ground test voltage kV 10 10 10 10 10 10 10 10 10 10 10 10
Maximum RIV (1 MHz) kV 50 50 50 50 50 50 50 50 50 50 50 50
Product quality kg 14.8 9.1 9.1 9.4 9.3 9.4 9.3 11.8 12 14 15 17.1

Technical Performance Parameters Table for Disc Suspension Porcelain Insulators (Standard Type)

Codename Model number Drawing number Structural height H mm Nominal diameter D mm Nominal creepage distance L mm Connection marker Rated electromechanical breaking load, kN Routine tensile load kN Impact load resistance N·m Power-frequency withstand voltage, kV Lightning impulse dry withstand voltage, kV Power-frequency breakdown voltage, kV Radio interference voltage Product weight kg
Wet Dry Ground test voltage kV Maximum RIV (1 MHz) kV
XP-40C U40C/140 3 140 190 200 16C 40 20 5 30 55 75 90 7.5 50 2.7
XP-40T U40BC/150 1 150 190 200 16C 40 20 5 30 55 75 90 7.5 50 3.4
XP-70 U70B/146 2 146 255 295 16W 70 35 6 40 70 100 110 10 50 4.6
XP-70C U70C/146 3 146 255 295 16C 70 35 6 40 70 100 110 10 50 4.8
XP-70TS U70BC/146 1 146 255 295 16C 70 35 6 40 70 100 110 10 50 4.6
XP-70TL U70BC/170 1 170 255 295 16C 70 35 6 40 70 100 110 10 50 4.6
XP6-70 U70B/146 2 146 255 320 16W 70 35 6 40 70 100 110 10 50 4.8
XP-100 U100B/146 4 146 255 295 16W 100 50 7 40 70 100 110 10 50 5.7
XP-100C U100C/146 3 146 255 295 16C 100 50 7 40 70 100 110 10 50 5.8
XP2-100 U100B/146 4 146 255 320 16W 100 50 7 40 70 100 110 10 50 6.0 
XP-120 U120B/146 4 146 255 295 16W 120 60 7 40 70 100 110 10 50 5.7
XP1-120 U120B/146 4 146 255 320 16W 120 60 7 40 70 100 110 10 50 6.0 
XP-160 U160B/155 4 155 255 305 20W/20R 160 80 10 40 70 100 110 10 50 7.4
XP4-160 U160B/155 5 155 300 400 20W/20R 160 80 10 45 75 110 110 10 50 9.4
XP6-160 U160B/155 5 155 280 380 20W/20R 160 80 10 42 75 105 110 10 50 8.9
XP1-210 U210B/170 4 170 280 335 20R/24R 210 105 10 40 70 105 120 10 50 10.2/10.0
XP2-210 U210B/170 5 170 280 380 20R/24R 210 105 10 42 75 105 120 10 50 10.7/10.3
XP3-210 U210B/170 5 170 300 400 20R/24R 210 105 10 45 75 110 120 10 50 11.4/11.1
XP-240 U240B/170 5 170 280 405 24R 240 120 10 45 75 110 120 10 50 11.1
XP-300 U300B/195 5 195 320 370 24R 300 150 10 45 75 110 120 10 50 13.2
XP1-300 U300B/195 5 195 320 390 24R 300 150 10 45 75 110 120 10 50 13.6
XP-420 U420B/205 6 205 340 550 28R 420 210 10 50 90 140 130 10 50 19.5

Production Capacity

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