33/70 dead end Composite Insulators overhead transmission line or distribution line composite post insulator Silicone Rubber Line Post Insulators IEC standard composite line post insulator grey color for distribution lines

OEM production is accepted



Composite insulator dead end type is used for Deadend structures which are used where the transmission line either ends to follow a substation or when it turns through a large angle. The composite deadend insulator is in line with the conductor and under tension.

Insulator fiberglass rod is produced from the highest quality materials. Strands are aligned for maximum tensile strength. The rod is more than 50 percent glass fibers in cross section.

End fittings are cast steel . The fittings surface are hot dip galvanized .

Zinc coating comply to IEC and ANSI such international standards .

Weathersheds are high pressure injection molded . Housings manufactured with silicone rubber , high mechanical strength, high corona resistance and low permeability to moisture.
Interface between silicone rubber and fiberglass rod are well treated.

This feature prevents intrusion of moisture and contaminating elements.

Many colors for selection, Red color, Grey color or Customer’s specifications

End fitting of composite suspension insulator:
1. Ball and socket end fitting
2. Clevis and tongue end fitting
3. Pig tail end fitting
4. Hook end fitting
5. Y clevis end fitting
Color for composite long rod insulator:
1. Red

2. Grey

voltage class:
11kV, 24kV, 33kV, 69kV, 110kV, 132kV, 169kV, 220kV, 245kV, 330kV, 400kV, 420kV, 500kV, 750kV
Specific Mechanical load:
70kN, 100kN, 110kN, 120kN, 160kN, 210kN, 300kN
We can produce composite insulators according to IEC61109, IEC61952, IECC29.11 and other international standards.
1. Electrical design test for composite deadend insulator:
1.1 Low frequency dry flashover test
1.2 Low frequency wet flashover test
1.3 Critical impulse flashover test-positive and negative
1.4 Radio influence voltage
2. Quality conformance tests for composite insulator distribution dead end type
2.1 Dimension test
2.2 Galvanizing test
2.3 Specified mechanical load test
2.4 Retest procedure
3. Routine test for composite deadend insulator:
3.1 Tension proof test
3.2 Visual examination

Competitive Advantage:

. The finish product have excellent mechanical and electrical performance.
• Eliminate or Reduce Maintenance and is compatible with existing plant
• Improves Power Quality (lower RI and TVI)
• Safety (light weight for handling and installation)
• Service Life (consistent performance over its service life)



△ A corner of High-voltage test