Application: | High-voltage |
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Material: | Porcelain |
Structure: | Pin Insulator |
Usage: | High Voltage Power Transmission, Insulation, Electrical Installation |
Connection Method: | Spherical Type |
Certification: | CCC, ISO9001, SGS |
Customization: |
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As the name suggests, pin-type insulators are mounted on pins on the cross arms of the pole. There is a groove on the upper end of the insulator. The conductor is passed through this groove and tied to the insulator with annealed wire of the same material as the conductor. Pin insulators are used for power transmission and distribution with voltages up to 33 kV. For operating voltages above 33 kV, pin insulators are required that are too bulky and therefore uneconomical.
ANSI Class | 55-1 | 55-2 | 55-3 | 55-4 | 55-5 | 55-6 | 55-7 |
Neck Designation in accordance with ANSI C29.5 | C | C | C | F | F | J | J |
DIMENSIONS | |||||||
Leakage Distance-mm | 102 | 127 | 178 | 229 | 305 | 381 | 381 |
Dry-Arcing Distance-mm | 57 | 86 | 144 | 127 | 159 | 203 | 203 |
Minimum Pin Height-mm | 102 | 102 | 127 | 127 | 152 | 191 | 191 |
MECHANICAL VALUES | |||||||
Cantilever Strength-kN | 13 | 11 | 11 | 13 | 13 | 13 | 13 |
ELECTRICAL VALUES | |||||||
Low-Frequency Dry Flashover-kV | 35 | 50 | 65 | 70 | 85 | 100 | 100 |
Low-Frequency Wet Flashover-kV | 20 | 25 | 35 | 40 | 35 | 50 | 50 |
Critical Impulse Flashover, Positive -kV | 50 | 75 | 100 | 110 | 140 | 150 | 150 |
Critical Impulse Flashover, Negative -kV | 70 | 95 | 130 | 140 | 170 | 170 | 170 |
Low-Frequency Puncture voltage -kV | 50 | 70 | 90 | 95 | 115 | 135 | 135 |
RADIO-INFLUENCE VOLTAGE DATA | |||||||
Low-Frequency Test Voltage, rms to Ground -kV | 5 | 5 | 10 | 10 | 15 | 22 | 22 |
Maximum RIV at 1 000 kHz - μV | 50 | 50 | 50 | 50 | 50 | 100 | 100 |
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