High Voltage Transmission Line ANSI 56-4 Porcelain Insulator
High Voltage Transmission Line ANSI 56-4 Porcelain Insulator image
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Product Details
ANSI 56-4 Product Description
About the Porcelain pin type Insulator
As the name suggests, the pin type insulator is mounted on a pin on the crossarm on the pole. There is a groove on the upper end of the insulator. The conductor passes through this groove and is tied to the insulator with annealed wire of the same material as the conductor. Pin type insulators are used for transmission and distribution of electric power at voltages up to 33 kV. Beyond operating voltage of 33 kV, the pin type insulators become too bulky and hence uneconomical.
– Advantages of Porcelain pin type Insulator
– High reliability through accumulated technology
– Excellent long-term performance
Specifications
1. original insulator producer
2. superior properties of low and medium temperature resistance;
3. strong aging resistance;
4. nice appearance & long service time.
5. comman glaze and semi-conductor glaze, color brown and gray both available.
6. free sample, professional porcelain insulator supplier.
ANSI CLASS | 56-1 | 56-2 | 56-3 | 56-4 | 56-5 | |
Fig. No. | 1 / 2 | 1 / 2 | 3 | 3 | 4 | |
Main Dimension(mm) | H | 146 | 165 | 191 | 241 | 318 |
h | 50.8 | 50.8 | 50.8 | 50.8 | 63.5 | |
D | 191 | 228 | 267 | 305 | 343 | |
d | 34.9 | 34.9 | 34.9 | 34.9 | 34.9 | |
R1 | 19 | 19 | 19 | 19 | 19 | |
R2 | 14 | 14 | 14 | 14 | 14 | |
Leakage Distance (in) | 13 | 17 | 21 | 27 | 34 | |
Dry Arcing Distance (in) | 7 | 8 | 9 | 11 | 14 | |
Low Frequency Voltage | Dry Flashover | 95 | 110 | 125 | 140 | 175 |
Wet Flashover | 60 | 70 | 80 | 95 | 125 | |
Puncture | 130 | 145 | 165 | 185 | 225 | |
Critical Impulse Flashover | Positive/kV | 150 | 175 | 200 | 225 | 270 |
Negative/kV | 190 | 225 | 265 | 310 | 340 | |
Radio Influence voltage | Test Voltage | 15 | 22 | 30 | 30 | 44 |
Plain | 8000 | 12000 | 16000 | 16000 | 25000 | |
Radio Freed | 100 | 100 | 200 | 200 | 200 | |
Cantilever Strength (lb) | 2500 | 3000 | 3000 | 3000 | 3000 |
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Tags: Ceramic Insulator, Line Post Insulators, pk-insulator, Porcelain Insulator