35kV
High-voltage
Porcelain
Post Insulator
A Type Insulator
High Voltage Power Transmission, Electrical Installation
Trough Type
CE, ISO9001
2800lbs.
F
34.5
NJREC
Wooden Pallet
China
85462090
Product Description
Nanjing Rainbow Electric Co.,Ltd manufactures a complete line of wet process porcelain line post insulators for application through 88 kV.
All insulators are solid core wet process porcelain and are manufactured and tested in conformance with ANSI Standard C29.7.
Porcelain pin type insulator is mounted on a pin on the cross-arm 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.
NJREC manufacturers three classes of pin type insulators. Low voltage pin types are manufactured and tested to the requirements of ANSI Standard C29.5, high voltage pin types to ANSI Standard C29.6, and special designs for use in areas of high contamination.
All insulators are solid core wet process porcelain and are manufactured and tested in conformance with ANSI Standard C29.7.
| ANSI Class/Standard | ANSI 57-2 | |
| Dimensions(ln) | ||
| Dring Arcing Distance | 7.8 | |
| Leakage Distance | 11-1/2 | |
| Mechanical Values(kV) | ||
| Cantilever Strength(lbs) | 2800lbs | |
| Electrical Values(kV) | ||
| Typical Voltage Class | 35kV | |
| Low frequency flashover | Dry | 110kV |
| Wet | 80kV | |
| Impluse flashover voltage | Positive | 180kV |
| Negative | 205kV | |
| Radio influence voltage | Test voltage to ground | 22kV |
| Max. RIV at 1000kHz | 100kV | |
| Net Weight(lb) | 19.1 lbs | |
Porcelain pin type insulator is mounted on a pin on the cross-arm 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.
NJREC manufacturers three classes of pin type insulators. Low voltage pin types are manufactured and tested to the requirements of ANSI Standard C29.5, high voltage pin types to ANSI Standard C29.6, and special designs for use in areas of high contamination.
