132kv Porcelain Bushing Outdoor Termination
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- Overview
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Basic Info.
Packaging & Delivery
Product Description
66-220kV High Voltage Cable Accessories
Our company provides the voltage level of 48/66kV, 64/110kV, 127/220kV and other series of cable accessories are all in accordance with IEC 60502, IEC 60840, IEC 62067, IEC 60859, IEC 62271-209, GB/T 11017, GB/T 18890, GB/T 12706, GB 311, GB 772, DL508, DL509, JB/T8144 and other standards, and have passed the stringent factory test, type test, pre-qualification test.
Termination with porcelation insulator
Scope of application
For cross linked polyethylene insulated power cables 240-3000mm2.
Suitable for large-scale chemical industry, iron and steel, power substations, coastal areas.
Features
Adoption of high-strength inorganic electric porcelain, stable performance
The stress cone is made of imported liquid silicone rubber injection molding, with a long and stable holding force and electric field uniformity.
Porcelain sleeve for the size of the umbrella structure, the whole outside the formation of a cone, has a very good anti-fouling flash, Weather resistance, anti-leakage marks, anti-electro-etching and water-repellent ability.
The terminal adopts multiple sealing structure to prevent water seepage and oil leakage during operation. water seepage and oil leakage phenomenon.
Structure & Size
1,wire clip (optional)
2,equalizing cover
3,core insulation
4,insulating oil
5,porcelain set
6,stress cone
7,fixed plate
8,support insulator
9,tail pipe
10,cable
Size /mm | 48/66kV | 64/110kV | 80/138kV | 127/220kV |
H | 1270 | 1500 | 1750 | 2500 |
A | 1510 | 1935 | 2085 | 3100 |
B | 1925 | 2155 | 2400 | 3600 |
C | 450 | 450 | 450 | 650 |
D | 200 | 200 | 200 | 300 |
E | Φ22 | Φ22 | Φ22 | Φ32 |
creepage distance | ≥2248 | ≥3906 | ≥4495 | ≥7812 |
Test Specification
All test classifications and codes:
No.# | Test Name | Code |
1 | Routine test | R |
2 | Sample test | S |
3 | Type test | T |
4 | Pre-qualification test | P |
5 | Additional test | A |
The following routine tests are performed on stress cones, epoxy bushings of GIS terminals and prefabricated intermediate joints of each product at 66kV and above.
Item | Voltage | ||||
38/66kV | 50/66kV | 64/110kV | 76/132kV | 127/220kV | |
Partial discharge | 54kV, no detectable local discharge over background | 72kV, no detectable local discharge over background | 96kV, no detectable local discharge over background | 114kV, no detectable local discharge over background | 190kV, no detectable local discharge over background |
The power frequency withstand voltage | 90kV/30min | 125kV/30min | 160kV/30min | 190kV/30min | 318kV/30min |
Sealing | Seal fittings, porcelain bushings, composite bushings for 0.25±0.01MPa/1h, no leakage | ||||
The epoxy casing was subjected to 0.6~0.7MPa/1h with no leakage. | |||||
Appearance | The products are free of damage, cracks, and other defects that may affect the quality and appearance of the products. |
66-220kV Main Test Parameters
Item | Standard | Test Category | Product Category | ||||||
48/66kV | 64/110kV | 127/220kV | Porcelain Sleeve Terminal | Composite Sleeve Terminal | GIS terminal | Straight / Insulated Joint | flexible terminal | ||
Sealing Fittings, Porcelain, Composite Sleeves | 0.25±0.01MPa/1h, no leakage | R | yes | yes | yes | – | – | ||
Epoxy Sleeve | 0.6~0.7MPa/1h, no leakage | ||||||||
Partial discharge of prefabricated parts | 72kV | 96kV | 190kV | R | yes | yes | yes | yes | yes |
Detects no more than background discharge | |||||||||
Frequency withstand voltage of prefabricated parts | 120kV | 160kV | 318kV | R | yes | yes | yes | yes | yes |
30min,no flashover, no breakdown | |||||||||
Partial discharge at room temperature | 72kV | 96kV | 190kV | T | yes | yes | yes | yes | yes |
Detects no more than background discharge | |||||||||
Thermal cycling voltage test | 96kV | 128kV | 254kV | T | yes | yes | yes | yes | yes |
20 cycles, no flashover, no breakdown | |||||||||
Partial discharge test at high temperature | 72kV | 96kV | 190kV | T | yes | yes | yes | yes | yes |
Detects no more than background discharge | |||||||||
Lightning impact test and subsequent frequency withstand voltage test | 450kV | 550kV | 1050kV | T | yes | yes | yes | yes | yes |
10 times for each positive and negative polarity | |||||||||
120kV | 160kV | 318kV | |||||||
15min, no flashover, no breakdown | |||||||||
Directly buried joint outer protective layer immersion voltage test | Two ends impact among the 60/75kV,an end of hit 30/37.5kV | Two ends impact among the 60/95kV,an end of hit 30/47.5kV | T | – | – | – | yes | – | |
Sealing test after assembly of accessories | 0.25±0.01MPa/1h, no leakage | T | yes | yes | yes | yes | yes | ||
Outdoor terminal rain frequency voltage test | 140kV | 185kV | 460kV | T | yes | yes | – | – | yes |
1min, no flashover, no breakdown | |||||||||
Pillar insulator voltage test | 20kV/1min, no flashover, no breakdown | T | yes | yes | – | – | – | ||
Radio interference test for outdoor terminals | 61kV | 81kV | 140kV | A | yes | yes | – | – | yes |
1MHz radio interference, voltage ≤ 450μV | 1MHz radio interference, voltage ≤ 500μV | ||||||||
Accessory specimen test | Visual inspection of accessory systems containing cables with no signs of deterioration that could affect the normal operation of the system | T | yes | yes | yes | yes | yes | ||
DC voltage test | / | No breakdown between conductor and metal shield in connector, 20kV/1min. | T | – | – | – | yes | – | |
Performance test of crimped connectors for conductor connecting rods | The total area after crimping is not more than 1.2 times the resistance of an equal length of conductor of the same cross-section. | T | yes | yes | yes | yes | yes |
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