High Voltage Silicone Rubber Strain Insulator

In transmission lines, corners experience significant tensile loads. To accommodate this substantial tension, strain polymer insulators are employed at sharp bends. In high-voltage transmission systems, these electrical insulators typically consist of a series of suspension insulators. Consequently, the Composite suspension insulator strings can be arranged in a horizontal plane, while the polymer strain insulators are positioned vertically. To manage high tensions effectively, multiple suspension strings-more than two-are connected in parallel. For lines operating at voltages below 11 kV, shackle insulators are utilized similarly to strain insulators. A tensile insulator is designed to withstand the tension exerted by overhead lines and is primarily used at line terminations and on towers where directional changes occur. In contrast, suspension insulators do not bear the line's tension; they only support its weight and are predominantly installed on straight-line towers. Insulators serve as devices that separate conductors with differing electrical potentials or isolate conductors from components grounded at zero potential. They must endure both voltage stress and mechanical forces and play a crucial role in overhead transmission systems. Initially, most insulation was applied to telephone poles; however, over time many disc-shaped insulators were suspended from one end of high-voltage wire connection towers to enhance creepage distance. These were commonly constructed from glass or ceramics and referred to simply as "insulators." It is imperative that these insulating devices remain functional under various electromechanical stresses resulting from fluctuations in environmental conditions and electrical loads; otherwise, their failure could compromise their effectiveness and adversely affect the operational lifespan of the entire system.

 DIMENSIONS:

·Height：540±15 mm.

·Dry Arcing Distance: 400 mm.

·Min. Leakage Distance：950 mm.

·Diameter Of  The Rod：Ø18 mm.

·Coupling Dimensions：Socket /Ball  16 (IEC 60120).

·Number Of Sheds：9.

MECHANICAL:

·Specified Mechanical Load (SML)：70 kN.

·Routine Test Load (RTL)：35 kN.

·Standard：IEC 61109.

ELECTRICAL:

·Rated Voltage：33 kV.

·Power Frequency Withstand Voltage(Wet 1 Min)：70 kV.

·Lightning Impulse Withstand Voltage：170 kV.

·Standard：IEC 61109.

Composite strain insulator raw material:

1. End-fitting:

1.1 Material：

     Socket：Cast Steel Or Forged Steel,HotDipGalvanized.

     Ball：Cast Steel Or Forged Steel,Hot Dip Galvanized.

1.2 Minimum Thickness Of The Galvanization：86 μm.

1.3 Split Pin：Stainless Steel.

2. Core：

2.1 Material：Epoxy & Glass Fiber,Acid-Resistant Type.

2.2 Diamter：∅18mm.

3.Weather Sheds：

3.1 Material：HTV Silicone .

3.2 Color： Gray.

     We are pleased to introduce ourselves as Wuhan Line Power, a leading manufacturer and primary supplier of high-quality composite insulators for electrical overhead power transmission and distribution lines. Our insulators are renowned for their durability, exceptional tensile strength, and extended service life. As a quality-conscious organization, we prioritize the establishment of long-term relationships with our customers, suppliers, employees, government entities, and stakeholders. In pursuit of establishing a strong presence in global markets, we have endeavored to win the trust of our customers by providing them with high-quality materials for electrical overhead transmission lines that meet their specific requirements and budgetary considerations. 

        These products can also be customized as per client's requirements. We are well equipped with sound infrastructure which is maintained and upgraded on regular basis. With a large area, the unit is enabled with all modern machinery and requisite accessories. These sophisticated machines help us in meeting the specific requirements of our clients while fulfilling the international quality standards.

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