Address
Nanzhai village, Liushi Town, yueqingCity, zhejiang Province, china
Tel
+86-13375775325
| Quantity: | |
|---|---|
Drawings:
Introduction:
This is a 33kV, 70kN silicone rubber suspension insulator designed for overhead power distribution systems. It features a robust construction with nine large, grey polymer sheds arranged in an optimized “sizeable umbrella” pattern. A key performance characteristic is its substantial creepage distance of 1200mm, which provides superior performance in polluted and humid conditions. This tension polymer insulator is engineered to offer reliable electrical insulation and high mechanical strength while being significantly lighter and more durable than traditional porcelain or glass insulators.
Specifications:
Product Type | Dimensions | Mechanical | Electrical | ||||||||
Height | Mini Dry | Mini | Diameter | Number of | Diameter | Specified | Routine | Rated Voltage | Lightning | Power | |
FXBW-33-70 | 605 ±10 | 450 | 1200 | 18 | 9 | 130/100 | 70 | 35 | 33 | 230 | 95 |
Order Information: | |||||||||||
Key Features:
High Electrical Performance: Rated for 33kV systems, it provides excellent dielectric strength. The long 1200mm creepage distance is specifically designed to prevent flashovers by effectively dissipating leakage currents, even in areas with industrial pollution, coastal salt fog, or desert dust.
Superior Mechanical Strength: With a 70kN (approx. 7-ton) cantilever & tensile strength, this composite insulator can withstand significant mechanical loads, including conductor weight, ice loading, and wind forces, ensuring long-term reliability.
Advanced Pollution & Weather Resistance: The grey silicone rubber housing is highly hydrophobic (water-repellent), which causes water to bead up and roll off, preventing the formation of a continuous conductive film. The large, alternating sheds maximize the leakage path and promote self-cleaning during rain.
Lightweight and Durable Construction: The composite material offers a high strength-to-weight ratio, simplifying transportation and installation. It is highly resistant to vandalism, impact, corrosion, and ultraviolet (UV) radiation, leading to a long service life with minimal maintenance.
Robust End Fittings and Sealing: The insulator is equipped with precision-engineered metal end fittings (a pin at the bottom and a socket at the top, typically hot-dip galvanized for corrosion resistance). These fittings are attached using a controlled crimping process and feature a hermetic seal to prevent moisture ingress into the fiberglass core, which is critical for preventing brittle fracture.
Production Process (Typical Workflow):
The manufacturing of this 33kV composite insulator involves a precise, multi-stage process to ensure quality and performance:
Core Rod Production: A Fiberglass-Reinforced Epoxy (FREP) rod is created through a pultrusion process. This results in a core with exceptional tensile strength and dimensional stability, which is the primary load-bearing component.
Shed Vulcanization/Molding: The grey polymer housing (typically High-Temperature Vulcanizing Silicone Rubber - HTV SR) is molded onto the core. The nine sheds are formed using injection molding or compression molding under heat and pressure. This process creates the specific "sizeable umbrella" profile and bonds the rubber securely to the rod.
End Fitting Assembly: The metal end fittings are assembled onto the core. This critical step involves:
Cleaning and preparing the rod ends.
Inserting the rod into the fitting.
Permanently securing it through a high-pressure crimping or swaging process that creates a strong mechanical interlock.
Sealing and Finishing: A sealing adhesive is applied at the interface between the rubber housing and the end fitting to create a moisture-proof barrier. The metal fittings may receive a final coating, such as galvanization.
Rigorous Quality Control: Each production batch undergoes stringent tests, including:
Mechanical Load Test: Proof load test to 50% of SML (35kN) or more.
Electrical Tests: Such as steep-front impulse withstand tests.
Interface Seal Test: To verify the integrity of the end-seal.
Hydrophobicity Check: To confirm the water-repellent properties of the silicone rubber.
Applications:
This 33kV composite long rod insulator is ideally suited for a wide range of applications:
Medium Voltage Overhead Lines: Used as suspension or tension insulators on 33kV distribution networks in urban and rural areas.
Distribution Substations: For insulating and supporting busbars, disconnect switches, transformer connections, and other equipment within substations.
Industrial Power Systems: Providing reliable insulation for power supply lines in industrial plants, mines, and railways where pollution levels are high.
Harsh Environment Applications: Its excellent pollution performance makes it a preferred choice for coastal areas, deserts, and regions with heavy industrial contamination.
Two Ends Of Connecting Hardware List
| Attachedto the letter | WQ | WD | WU | CT | TT | UU | YQ | RR | |
| On behalfof fittings | Socket -Ball | Socket -Tongue | Socket- Clevis | Ball- Bal | Clevis-Tongue | Tongue-Tongue | Clevis- Clevis | Y-Ball | Ring-Ring |
| Connectionmark | 16-16 | 16-7 | 16-7 | 16-16 | 7-7 | 7-7 | 7-7 | 7-7 | 7-7 |
1. According to the requirements of hardware in models are indicated in the attached letter;
2. According to the requirements of users can formulate and match ends fitting;
3. Silicone rubber color gray as the default,can also choose the other colors.
4. Custom made according to customer's drawings
 |  |
 |  |
 |  |  |
Drawings:
Introduction:
This is a 33kV, 70kN silicone rubber suspension insulator designed for overhead power distribution systems. It features a robust construction with nine large, grey polymer sheds arranged in an optimized “sizeable umbrella” pattern. A key performance characteristic is its substantial creepage distance of 1200mm, which provides superior performance in polluted and humid conditions. This tension polymer insulator is engineered to offer reliable electrical insulation and high mechanical strength while being significantly lighter and more durable than traditional porcelain or glass insulators.
Specifications:
Product Type | Dimensions | Mechanical | Electrical | ||||||||
Height | Mini Dry | Mini | Diameter | Number of | Diameter | Specified | Routine | Rated Voltage | Lightning | Power | |
FXBW-33-70 | 605 ±10 | 450 | 1200 | 18 | 9 | 130/100 | 70 | 35 | 33 | 230 | 95 |
Order Information: | |||||||||||
Key Features:
High Electrical Performance: Rated for 33kV systems, it provides excellent dielectric strength. The long 1200mm creepage distance is specifically designed to prevent flashovers by effectively dissipating leakage currents, even in areas with industrial pollution, coastal salt fog, or desert dust.
Superior Mechanical Strength: With a 70kN (approx. 7-ton) cantilever & tensile strength, this composite insulator can withstand significant mechanical loads, including conductor weight, ice loading, and wind forces, ensuring long-term reliability.
Advanced Pollution & Weather Resistance: The grey silicone rubber housing is highly hydrophobic (water-repellent), which causes water to bead up and roll off, preventing the formation of a continuous conductive film. The large, alternating sheds maximize the leakage path and promote self-cleaning during rain.
Lightweight and Durable Construction: The composite material offers a high strength-to-weight ratio, simplifying transportation and installation. It is highly resistant to vandalism, impact, corrosion, and ultraviolet (UV) radiation, leading to a long service life with minimal maintenance.
Robust End Fittings and Sealing: The insulator is equipped with precision-engineered metal end fittings (a pin at the bottom and a socket at the top, typically hot-dip galvanized for corrosion resistance). These fittings are attached using a controlled crimping process and feature a hermetic seal to prevent moisture ingress into the fiberglass core, which is critical for preventing brittle fracture.
Production Process (Typical Workflow):
The manufacturing of this 33kV composite insulator involves a precise, multi-stage process to ensure quality and performance:
Core Rod Production: A Fiberglass-Reinforced Epoxy (FREP) rod is created through a pultrusion process. This results in a core with exceptional tensile strength and dimensional stability, which is the primary load-bearing component.
Shed Vulcanization/Molding: The grey polymer housing (typically High-Temperature Vulcanizing Silicone Rubber - HTV SR) is molded onto the core. The nine sheds are formed using injection molding or compression molding under heat and pressure. This process creates the specific "sizeable umbrella" profile and bonds the rubber securely to the rod.
End Fitting Assembly: The metal end fittings are assembled onto the core. This critical step involves:
Cleaning and preparing the rod ends.
Inserting the rod into the fitting.
Permanently securing it through a high-pressure crimping or swaging process that creates a strong mechanical interlock.
Sealing and Finishing: A sealing adhesive is applied at the interface between the rubber housing and the end fitting to create a moisture-proof barrier. The metal fittings may receive a final coating, such as galvanization.
Rigorous Quality Control: Each production batch undergoes stringent tests, including:
Mechanical Load Test: Proof load test to 50% of SML (35kN) or more.
Electrical Tests: Such as steep-front impulse withstand tests.
Interface Seal Test: To verify the integrity of the end-seal.
Hydrophobicity Check: To confirm the water-repellent properties of the silicone rubber.
Applications:
This 33kV composite long rod insulator is ideally suited for a wide range of applications:
Medium Voltage Overhead Lines: Used as suspension or tension insulators on 33kV distribution networks in urban and rural areas.
Distribution Substations: For insulating and supporting busbars, disconnect switches, transformer connections, and other equipment within substations.
Industrial Power Systems: Providing reliable insulation for power supply lines in industrial plants, mines, and railways where pollution levels are high.
Harsh Environment Applications: Its excellent pollution performance makes it a preferred choice for coastal areas, deserts, and regions with heavy industrial contamination.
Two Ends Of Connecting Hardware List
| Attachedto the letter | WQ | WD | WU | CT | TT | UU | YQ | RR | |
| On behalfof fittings | Socket -Ball | Socket -Tongue | Socket- Clevis | Ball- Bal | Clevis-Tongue | Tongue-Tongue | Clevis- Clevis | Y-Ball | Ring-Ring |
| Connectionmark | 16-16 | 16-7 | 16-7 | 16-16 | 7-7 | 7-7 | 7-7 | 7-7 | 7-7 |
1. According to the requirements of hardware in models are indicated in the attached letter;
2. According to the requirements of users can formulate and match ends fitting;
3. Silicone rubber color gray as the default,can also choose the other colors.
4. Custom made according to customer's drawings
| |
| |
| | |
