Professional U160BLP Toughed Glass Insulator for High Voltage Transmission and Distribution

The 160kN anti-pollution glass insulator is a high-strength insulating device used in high-voltage transmission lines, offering excellent pollution flashover resistance, high mechanical strength, and long-term stability. It is particularly suitable for polluted environments (e.g., industrial areas, coastal regions).

Product Overview

High-Voltage-Suspension-Insulator-U160BL-Toughed-Glass-Insulator-for-Transmission-Line
70kn High Voltage Anti-Pollution Toughened Suspension Glass Insulator U70BLP (5)
● Model: U160BLP
• U Refers To Disc Suspension Insulator
• B For Ball And Socket Type
• L Stands For Long Steel Foot
• P Stands For Anti-pollution Type
 Type: Anti-Pollution Or Anti-Fog Profile Toughened Suspension Type
 Rated mechanical load: 160kn (about 16 tons)
 Purpose: it is mainly used for high voltage/ultra-high voltage transmission lines (such as 110KV, 220kV, 500kV, etc.), especially for harsh environments such as high pollution, high humidity, salt fog, industrial dust, etc., to provide electrical insulation and mechanical support.
70kn High Voltage Anti-Pollution Toughened Suspension Glass Insulator U70BLP (4)
  The product model is in accordance with GB/T 7253-2005 and JB/T9683-2012(EC60305:1995MOD).
  The connection structure is in accordance with GB/T4056-2008(IEC60120:1984,MOD) and BS 3288 part lll.
  According to customer requirements, the locking pin can be either W-pin or R-pin.
  If there is no special instruction, W pin is used for U160BLP.

Structure and materials

U160BL2
  • Material characteristic

    High-strength tempered glass is used, and its mechanical properties and resistance to thermal shock are improved through a heat treatment process.
    It features a smooth surface with strong hydrophobic properties, making it difficult for dirt to adhere, and it exhibits excellent anti-pollution performance.
    Zero-value self-explosion characteristic: If the glass insulator loses its insulation capability due to a fault, the umbrella disc will automatically burst, allowing operation and maintenance personnel to quickly identify the fault location.
  • Metal accessories

    Cap&foot: Manufactured from hot-dip galvanized steel or aluminum, offering corrosion resistance, and securely bonded to the glass umbrella tray using cement adhesive.
    Locking pin: A standardized design ensures a reliable connection for the insulator string.
  • Umbrella skirt design

    The structure employs a large climbing distance anti-fouling umbrella skirt, featuring wide spacing between the umbrellas and a deep umbrella edge. This design effectively increases the creepage distance (typically ≥ 450mm) and suppresses arc and pollution flashover.
    The umbrella shape has been optimized to prevent rainwater from forming continuous lines, thereby improving the wet flashover voltage.

key parameters 

Domestic designation

U160BMP

U160BMP1

U160BSP

U160BLP

U160BLP1

QOCI Type

UG160B155/450H

UG160B170/450H

UG160B146/550H

UG160B170/550H

UG160B155/550H

Mechanical failing load

kN

160

160

160

160

160

Nominal Diameter D

mm

280

280

320

320

320

Nominal Spacing P

mm

155

170

146

170

155

Creepage distance L

mm

450

450

550

550

550

Socket coupling

mm

20

20

20

20

20

Wet power frequency withstand voltage

kv

50

50

55

55

55

Dry lightning impulse withstand voltage

kv

125

125

140

140

140

Power frequency puncture voltage

kv

130

130

130

130

130

Radio interference voltage(10kV 1MHz)

μv

50

50

50

50

50

Corona visual test P/C

kv

18/22

18/22

18/22

18/22

18/22

Power frequency electric arc voltage

ka

0.12S/20kA

0.12S/20kA

0.12S/20kA

0.12S/20kA

0.12S/20kA

Impulse puncture voltage

P.U

2.8

2.8

2.8

2.8

2.8

Net weight per unit

kg

7.1

7.2

9.4

9.6

9.5

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