Application: | High-voltage |
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Material: | Porcelain |
Structure: | Strain Insulator |
Usage: | High Voltage Power Transmission, Insulation, Electrical Installation |
Connection Method: | Spherical Type |
Certification: | CCC, ISO9001 |
Customization: |
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Suspension insulators are designed to be connected in a string (usually two or more) to provide higher voltage protection than any single insulator. Suspension insulators are often used on high-voltage transmission towers, as shown in the figure below. Ceramic is by far the most commonly used insulation material, but there are also a variety of glass styles. Porcelain suspension insulators have revolutionized the power distribution industry, providing higher voltage protection - they are used on several 1,000kV DC transmission lines.
Can be used for any voltage and pollution level by changing the number of insulators
Mechanical strength up to 530kN
High reliability brought by technology accumulation
Excellent long-term performance
ANSI Class | 52-5 | 52-6 | 52-8 | 52-9A/B | 52-10 | 52-11 | 52-12 | |
Porcelain Disc Diameter, D (mm) | 254 | 254 | 280 | 108 | 280 | 300 | 300 | |
Unit Spacing, H (mm) | 146 | 146 | 146 | 160 | 165 | 156 | 178 | |
Creepage Distance (mm) | 292 | 292 | 305 | 171 | 305 | 381 | 381 | |
Combined M&E Strength (kN) | 111 | 111 | 160 | 44 | 160 | 222 | 222 | |
Impact Strength (N-m) | 7 | 7 | 10 | 5 | 10 | 10 | 10 | |
Routine Proof Test Load (kN) | 55.5 | 55.5 | 80 | 22 | 80 | 111 | 111 | |
Time Load Test Value (kN) | 67 | 67 | 107 | 27 | 107 | 133 | 133 | |
Low Frequency Flashover Voltage | Dry (kV) | 80 | 80 | 80 | 60 | 80 | 80 | 80 |
Wet (kV) | 50 | 50 | 50 | 30 | 50 | 50 | 50 | |
Critical Impulse Flashover Voltage | Pos., (kV) | 125 | 125 | 125 | 100 | 125 | 140 | 140 |
Neg., (kV) | 130 | 130 | 130 | 90 | 130 | 140 | 140 | |
Low Frequency Puncture Voltage (kV) | 110 | 110 | 110 | 80 | 110 | 125 | 125 | |
Radio Influence Voltage Data | Test Voltage to Ground (kV) | 10 | 10 | 10 | 7.5 | 10 | 10 | 10 |
Max. RIV at 1000kHz (uV) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | |
Net Weight, Each, Approx., (kg) | 5.5 | 5.5 | 7.5 | 2.5 | 7.9 | 9.2 | 9.5 |
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