Address
Nanzhai village, Liushi Town, yueqingCity, zhejiang Province, china
Tel
+86-13375775325
| Quantity: | |
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Detailed Introduction:
33kV, 70kN Composite Long Rod Insulator
This is a high-performance 33kV, 70kN composite suspension insulator, a critical component designed for electrical insulation and mechanical support in medium-voltage 33kV overhead power transmission and distribution systems.
Size:
Specifications:
Product Type | Dimensions | Mechanical | Electrical | ||||||||
Height | Mini Dry | Mini | Diameter | Number of | Diameter | Specified | Routine | Rated Voltage | Lightning | Power | |
FXB-33-70CT | 545 ±10 | 360 | 900 | 17 | 8 | 98 | 70 | 35 | 33 | 230 | 95 |
Order Information: | |||||||||||
Product Structure Diagram:
① End Fitting type: Tongue
Forged steel and hot dip galvanized,minimum thinkness of the galvanization:86µm
② The thickness of silicone rubber housing is more than 3mm,it is in accordance with IEC standard.
③ The acid-resistance,high terperature-resistance core rod use the materials epoxy & glassfiber.
④ End fitting type: Clevis
Forged steel and hot dip galvanized, minimum thinkness of the galvanization:86µm
Overall Design and Type:
This 33kV 70kN composite suspension insulator is a composite (polymer) long rod type with a 8-shed (grey profile) “shackle”or “pancake”disc design. Unlike traditional porcelain or glass, the use of a polymer (like silicone rubber) offers superior performance. Its key advantages include:
Lightweight: Significantly lighter than ceramic equivalents, easing transport and installation.
High Strength-to-Weight Ratio: The core is typically a fiberglass rod with high tensile strength.
Excellent Hydrophobicity: The silicone rubber material repels water, preventing the formation of a continuous water film. This drastically improves performance in polluted, humid, or coastal environments by reducing leakage currents and the risk of flashover.
Electrical Characteristics:
Rated System Voltage: 33 kV (kiloVolts). This is clearly marked on the top metal fitting.
Creepage Distance: 900 mm. This is the total path length along the insulator's surface between the two metal ends. The specific 8-shed profile is engineered to maximize this distance, providing a long leakage path to withstand overvoltages and prevent surface current tracking, especially in adverse conditions.
Mechanical Characteristics:
Specified Mechanical Load (SML): 70 kN (kiloNewtons). This indicates the maximum tensile load the insulator is certified to withstand, which is approximately 7 metric tons. This rating ensures it can handle the mechanical forces from the conductor weight, wind, and ice.
Hardware and End Fittings:
The metal attachments, known as hardware, are designed for robust and flexible connection, as you specified with a single-eye and double-eye (clevis)
Top Fitting: A single eye terminal. This looped end is typically connected to the cross-arm of a transmission tower.
Bottom Fitting: A double eye (clevis) terminal. This U-shaped fork allows for easy connection to the conductor or another insulator string using a clevis pin and a tongue. This combination provides flexibility to accommodate movement and angles in the line.
Both fittings are made from hot-dip galvanized steel, providing excellent corrosion resistance. The surface often has a knurled or textured pattern to ensure a secure, locked fit with the polymer housing.
Application:
This tension polymer insulator is primarily used in suspension strings. Multiple such units can be connected in series to form a string suitable for higher voltage lines or different mechanical requirements. Its primary functions are to:
Mechanically support the live electrical conductor.
Electrically isolate the live conductor from the grounded transmission tower structure.
Maintain a safe and reliable insulation margin under all service conditions.
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
 |  |
 |  |
 |  |  |
Detailed Introduction:
33kV, 70kN Composite Long Rod Insulator
This is a high-performance 33kV, 70kN composite suspension insulator, a critical component designed for electrical insulation and mechanical support in medium-voltage 33kV overhead power transmission and distribution systems.
Size:
Specifications:
Product Type | Dimensions | Mechanical | Electrical | ||||||||
Height | Mini Dry | Mini | Diameter | Number of | Diameter | Specified | Routine | Rated Voltage | Lightning | Power | |
FXB-33-70CT | 545 ±10 | 360 | 900 | 17 | 8 | 98 | 70 | 35 | 33 | 230 | 95 |
Order Information: | |||||||||||
Product Structure Diagram:
① End Fitting type: Tongue
Forged steel and hot dip galvanized,minimum thinkness of the galvanization:86µm
② The thickness of silicone rubber housing is more than 3mm,it is in accordance with IEC standard.
③ The acid-resistance,high terperature-resistance core rod use the materials epoxy & glassfiber.
④ End fitting type: Clevis
Forged steel and hot dip galvanized, minimum thinkness of the galvanization:86µm
Overall Design and Type:
This 33kV 70kN composite suspension insulator is a composite (polymer) long rod type with a 8-shed (grey profile) “shackle”or “pancake”disc design. Unlike traditional porcelain or glass, the use of a polymer (like silicone rubber) offers superior performance. Its key advantages include:
Lightweight: Significantly lighter than ceramic equivalents, easing transport and installation.
High Strength-to-Weight Ratio: The core is typically a fiberglass rod with high tensile strength.
Excellent Hydrophobicity: The silicone rubber material repels water, preventing the formation of a continuous water film. This drastically improves performance in polluted, humid, or coastal environments by reducing leakage currents and the risk of flashover.
Electrical Characteristics:
Rated System Voltage: 33 kV (kiloVolts). This is clearly marked on the top metal fitting.
Creepage Distance: 900 mm. This is the total path length along the insulator's surface between the two metal ends. The specific 8-shed profile is engineered to maximize this distance, providing a long leakage path to withstand overvoltages and prevent surface current tracking, especially in adverse conditions.
Mechanical Characteristics:
Specified Mechanical Load (SML): 70 kN (kiloNewtons). This indicates the maximum tensile load the insulator is certified to withstand, which is approximately 7 metric tons. This rating ensures it can handle the mechanical forces from the conductor weight, wind, and ice.
Hardware and End Fittings:
The metal attachments, known as hardware, are designed for robust and flexible connection, as you specified with a single-eye and double-eye (clevis)
Top Fitting: A single eye terminal. This looped end is typically connected to the cross-arm of a transmission tower.
Bottom Fitting: A double eye (clevis) terminal. This U-shaped fork allows for easy connection to the conductor or another insulator string using a clevis pin and a tongue. This combination provides flexibility to accommodate movement and angles in the line.
Both fittings are made from hot-dip galvanized steel, providing excellent corrosion resistance. The surface often has a knurled or textured pattern to ensure a secure, locked fit with the polymer housing.
Application:
This tension polymer insulator is primarily used in suspension strings. Multiple such units can be connected in series to form a string suitable for higher voltage lines or different mechanical requirements. Its primary functions are to:
Mechanically support the live electrical conductor.
Electrically isolate the live conductor from the grounded transmission tower structure.
Maintain a safe and reliable insulation margin under all service conditions.
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
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