Address
Nanzhai village, Liushi Town, yueqingCity, zhejiang Province, china
Tel
+86-13375775325
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Introduction:
This is a new, high-performance 69kV line post insulator, designed for reliable performance in overhead power transmission and distribution systems. Its robust construction and optimized design make it suitable for a variety of outdoor applications, particularly in areas prone to pollution and harsh weather conditions.
This is a type of composite post insulator, specifically designed to be suspended from the cross-arms of electrical transmission towers (or pylons). Its primary function is to support the live high-voltage electrical conductor and, most critically, to electrically isolate it from the grounded tower structure. This prevents the high-voltage electricity from flowing to the ground through the tower, ensuring safe and efficient power delivery over long distances.
Product Size:
Specification:
Product Type: | FZSW-69-10-1850 |
Height(mm): | 850 ± 30 |
Min Dry Arcing Distance(mm): | 700 |
Min Creepage Distance(mm): | 1850 |
Diameter of the rod(mm): | 50 |
Number of sheds: | 15 |
Sheds of diameter(mm): | 165/135 |
Rated Bending Load(kN): | 10 |
Rated Voltage(kV): | 69 |
Lightning Impulse Withstand Voltage(kV): | 410 |
Power Frequency Withstand Voltage(kV): | 230 |
Key Electrical & Mechanical Specifications:
Rated Voltage: 69 kV
Specified Mechanical Load (SML): 10 kN (approx. 1 metric ton). This indicates the maximum cantilever load the insulator can withstand when mounted horizontally.
Creepage Distance: 1850 mm. This substantial leakage distance along the insulator's surface is critical for preventing flashovers in polluted or wet environments.
Design and Construction:
Core Structure: This composite insulator features a central column, likely constructed from high-strength porcelain or glass, which provides excellent dielectric and mechanical properties.
Shell/Shed Profile: The most distinctive feature is the 15 grey disc-shaped shells (sheds) arranged in a vertical stack. These sheds follow an advanced alternating "large and small umbrella" (size skirt) design.
This pattern consists of larger, flatter sheds interspersed with smaller, more deeply curved sheds.
Performance Benefit: This design is highly effective for pollution control. It significantly increases the creepage distance and creates a more complex path for surface currents, improving resistance to flashover. The alternating sheds also enhance the insulator's self-cleaning properties and water-shedding capability during rain.
Material: The insulating body is grey, a standard color for outdoor high-voltage apparatus.
End Fittings and Hardware:
Top Fitting: The unit is equipped with a durable metal cap (corona ring) and connection hardware. This assembly is engineered for horizontal mounting and provides a secure point for attaching the electrical conductor, complete with bolts and nuts.
Base Fitting: The bottom terminates in a sturdy metal flange plate with multiple bolt holes. This allows for a secure and stable fixation to a cross-arm or other supporting structure.
Application and Advantages:
This silicone insulator(polymer insulator) is primarily used to support and electrically isolate live high-voltage conductors from grounded transmission tower structures. Its 10kN rating makes it suitable for moderate mechanical loads, such as supporting conductors on straight sections of a line or on substation structures.
The combination of the 69kV rating, the optimized 15-shed profile, and the long 1850mm creepage distance ensures high reliability, longevity, and minimal maintenance, even in demanding service conditions like coastal, industrial, or desert environments.
Company Tour:
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Introduction:
This is a new, high-performance 69kV line post insulator, designed for reliable performance in overhead power transmission and distribution systems. Its robust construction and optimized design make it suitable for a variety of outdoor applications, particularly in areas prone to pollution and harsh weather conditions.
This is a type of composite post insulator, specifically designed to be suspended from the cross-arms of electrical transmission towers (or pylons). Its primary function is to support the live high-voltage electrical conductor and, most critically, to electrically isolate it from the grounded tower structure. This prevents the high-voltage electricity from flowing to the ground through the tower, ensuring safe and efficient power delivery over long distances.
Product Size:
Specification:
Product Type: | FZSW-69-10-1850 |
Height(mm): | 850 ± 30 |
Min Dry Arcing Distance(mm): | 700 |
Min Creepage Distance(mm): | 1850 |
Diameter of the rod(mm): | 50 |
Number of sheds: | 15 |
Sheds of diameter(mm): | 165/135 |
Rated Bending Load(kN): | 10 |
Rated Voltage(kV): | 69 |
Lightning Impulse Withstand Voltage(kV): | 410 |
Power Frequency Withstand Voltage(kV): | 230 |
Key Electrical & Mechanical Specifications:
Rated Voltage: 69 kV
Specified Mechanical Load (SML): 10 kN (approx. 1 metric ton). This indicates the maximum cantilever load the insulator can withstand when mounted horizontally.
Creepage Distance: 1850 mm. This substantial leakage distance along the insulator's surface is critical for preventing flashovers in polluted or wet environments.
Design and Construction:
Core Structure: This composite insulator features a central column, likely constructed from high-strength porcelain or glass, which provides excellent dielectric and mechanical properties.
Shell/Shed Profile: The most distinctive feature is the 15 grey disc-shaped shells (sheds) arranged in a vertical stack. These sheds follow an advanced alternating "large and small umbrella" (size skirt) design.
This pattern consists of larger, flatter sheds interspersed with smaller, more deeply curved sheds.
Performance Benefit: This design is highly effective for pollution control. It significantly increases the creepage distance and creates a more complex path for surface currents, improving resistance to flashover. The alternating sheds also enhance the insulator's self-cleaning properties and water-shedding capability during rain.
Material: The insulating body is grey, a standard color for outdoor high-voltage apparatus.
End Fittings and Hardware:
Top Fitting: The unit is equipped with a durable metal cap (corona ring) and connection hardware. This assembly is engineered for horizontal mounting and provides a secure point for attaching the electrical conductor, complete with bolts and nuts.
Base Fitting: The bottom terminates in a sturdy metal flange plate with multiple bolt holes. This allows for a secure and stable fixation to a cross-arm or other supporting structure.
Application and Advantages:
This silicone insulator(polymer insulator) is primarily used to support and electrically isolate live high-voltage conductors from grounded transmission tower structures. Its 10kN rating makes it suitable for moderate mechanical loads, such as supporting conductors on straight sections of a line or on substation structures.
The combination of the 69kV rating, the optimized 15-shed profile, and the long 1850mm creepage distance ensures high reliability, longevity, and minimal maintenance, even in demanding service conditions like coastal, industrial, or desert environments.
Company Tour:
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