33kv Pin Insulator Porcelain Creepage 900mm for Transmission Line With SpindleAs the name suggests, the 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.
§ High Quality insulator-Annual production of various types of insulators 3 million pieces.
§ Factory was established in 1998, continuous technical development and improvement, technology and process strength.
§ 25 years of State Grid, China Southern Power Grid quality supplier.
§ 25 years of experience in insulator export production





Catalog No. | A1001 | A1002 | A1003 | A1004 | A1005 | A1006 | A1007 | ||
Fig | 1 | 1 | 2 | 3 | 4 | 5 | 6 | ||
Class Bs | P-11-Y | P-15-Y | P-20-Y | P-33-Y | Pw-11-Y | Pw-22-Y | Pw-33-Y | ||
Main Dimensions (mm) | H | 133 | 137 | 195 | 244 | 185 | 255 | 320 | |
h | 48 | 48 | 52.63 | 52.63 | 52.63 | 52.63 | 52.63 | ||
D | 140 | 152 | 230 | 279 | 170 | 205 | 240 | ||
d | 18.29 | 18.29 | 27.78 | 27.78 | 76 | 76 | 76 | ||
d2 | 27.78 | 27.78 | 27.78 | ||||||
R1 | 13 | 13 | 19 | 19 | 16 | 16 | 16 | ||
R2 | 9.5 | 12.7 | 14.3 | 13 | 16 | 16 | 16 | ||
Nominal voltage/kv | 11 | 15 | 22 | 33 | 15 | 22 | 33 | ||
Creepage Distance ( mm) | 240 | 298 | 432 | 630 | 432 | 673 | 851 | ||
Minimum Flashover Voltage | Power-frequency | Dry /KV | 75 | 80 | 100 | 135 | 100 | 125 | 140 |
Wet /KV | 45 | 55 | 60 | 85 | 65 | 95 | 110 | ||
50% Impulse | Positive/kv | 100 | 130 | 160 | 185 | 150 | 190 | 210 | |
Negative/kv | 110 | 175 | 205 | ||||||
Withstand Voltage | One minute power-frequency | Dry /KV | 65 | 70 | 90 | 110 | 90 | 110 | 125 |
Wet /KV | 40 | 50 | 55 | 75 | 60 | 90 | 100 | ||
Impulse/kv | 110 | 150 | 140 | 180 | 200 | ||||
Radio-Influence-Voltage Date | Test Voltage to Ground/kv | 15 | 15 | 22 | 30 | 22 | 30 | 44 | |
Maximum RIV at 1000kHz/uV | 8000 | 8000 | 12000 | 16000 | 12000 | 16000 | 25000 | ||
Powe-frequence-puncture Voltage (KV) | 135 | 135 | 145 | 185 | 150 | 200 | 210 | ||
Cantilever Failing Load(KN) | 11 | 11 | 11 | 13 | 11 | 11 | 11 | ||
Weight /kg | 1.8 | 11.5 | 5 | 10 | 13 |
Jiangxi Xinghai Electric Porcelain Manufacturing Co., Ltd. is one of leading manufacturer of porcelain insulators for overhead distribution and transmission line. Which located in Pingxiang Jiangxi China, whereis china's centennial procelain city, with 80,000m manufacturing area and 230 people (include 10 senior engineers and 28 technicians).
Xinghai insulator own strong technical strength and full set facilities for various high and low voltage porcelain insulator. the main products covering 300kN and below suspension/disc
insulator, Anti-pollution type insulator, pin insulator, line post insulator, strain insulator, spool insulator, shackle insulator and other more than 100 kinds of insulator. covering products with voltage levels ranging from 10kV-500kV. Currently, the company is developing advanced DC±800kV and AC1000kV UHV suspension insulators in China, and is a qualified supplier of State Grid and China Southern Power Grid. It enjoys a wide reputation in the industry.
All products are manufactured by wet process porcelain and advanced oxide flame burning to ensure reliable performance.
Xinghai insulator has ISO9001:2015 Certified Quality Management System to ensure consistent quality excellence. All products Confirm to international quality standards - IEC, BS, ANSI, AS, DIN and GB. With high quality, competitive prices and excellent professional service, we gain very good reputation in the world.
1. Who are we?
We are based in Jiangxi, China, start from 1998, sell to Southeast Asia, Mid East, North America, South America, Africa, Domestic Market, Eastern Asia. There are total about 200-300 people in our factory.2. How can we guarantee quality?
The quality is confirmed from the source material entering the factory, and technical personnel refer to quality supervision for each process. The same product is produced every day of the year, and the details of the product are constantly improved to ensure product quality.
3.What can you buy from us?
Power related products (Porcelain insulator, glass insulator, composite insulator, power fittings, etc, power products)
4. Why should you buy from us not from other suppliers?
1).Professional manufacturer with advanced production equipment, exquisite technology and advanced testing techniques.
2).After-sale quality is guaranteed.
3). First class service.
4). customizable.
5. What services can we provide?
1) Free Samples
2) Welcome to visit the factory at any time
3)Accepted Delivery Terms: FOB,EXW,CIF, etc;
4)Accepted Payment Currency:USD,EUR,JPY,HKD,CNY;
5)Accepted Payment Type: T/T,MoneyGram,Credit card,PayPal,Western Union,Escrow;.
