Professional U160BLP Toughed Glass Insulator for High Voltage Transmission and Distribution
Product Overview
● Model: U160BLP
• U Refers To Disc Suspension Insulator
• B For Ball And Socket Type
• L Stands For Long Steel Foot
• P Stands For Anti-pollution Type
● Type: Anti-Pollution Or Anti-Fog Profile Toughened Suspension Type
● Rated mechanical load: 160kn (about 16 tons)
● Purpose: it is mainly used for high voltage/ultra-high voltage transmission lines (such as 110KV, 220kV, 500kV, etc.), especially for harsh environments such as high pollution, high humidity, salt fog, industrial dust, etc., to provide electrical insulation and mechanical support.
● The product model is in accordance with GB/T 7253-2005 and JB/T9683-2012(EC60305:1995MOD).
● The connection structure is in accordance with GB/T4056-2008(IEC60120:1984,MOD) and BS 3288 part lll.
● According to customer requirements, the locking pin can be either W-pin or R-pin.
● If there is no special instruction, W pin is used for U160BLP.
Structure and materials
-
Material characteristic
High-strength tempered glass is used, and its mechanical properties and resistance to thermal shock are improved through a heat treatment process.It features a smooth surface with strong hydrophobic properties, making it difficult for dirt to adhere, and it exhibits excellent anti-pollution performance.Zero-value self-explosion characteristic: If the glass insulator loses its insulation capability due to a fault, the umbrella disc will automatically burst, allowing operation and maintenance personnel to quickly identify the fault location. -
Metal accessories
Cap&foot: Manufactured from hot-dip galvanized steel or aluminum, offering corrosion resistance, and securely bonded to the glass umbrella tray using cement adhesive.Locking pin: A standardized design ensures a reliable connection for the insulator string. -
Umbrella skirt design
The structure employs a large climbing distance anti-fouling umbrella skirt, featuring wide spacing between the umbrellas and a deep umbrella edge. This design effectively increases the creepage distance (typically ≥ 450mm) and suppresses arc and pollution flashover.The umbrella shape has been optimized to prevent rainwater from forming continuous lines, thereby improving the wet flashover voltage.
key parameters
|
Domestic designation |
U160BMP |
U160BMP1 |
U160BSP |
U160BLP |
U160BLP1 |
|
|
QOCI Type |
UG160B155/450H |
UG160B170/450H |
UG160B146/550H |
UG160B170/550H |
UG160B155/550H |
|
|
Mechanical failing load |
kN |
160 |
160 |
160 |
160 |
160 |
|
Nominal Diameter D |
mm |
280 |
280 |
320 |
320 |
320 |
|
Nominal Spacing P |
mm |
155 |
170 |
146 |
170 |
155 |
|
Creepage distance L |
mm |
450 |
450 |
550 |
550 |
550 |
|
Socket coupling |
mm |
20 |
20 |
20 |
20 |
20 |
|
Wet power frequency withstand voltage |
kv |
50 |
50 |
55 |
55 |
55 |
|
Dry lightning impulse withstand voltage |
kv |
125 |
125 |
140 |
140 |
140 |
|
Power frequency puncture voltage |
kv |
130 |
130 |
130 |
130 |
130 |
|
Radio interference voltage(10kV 1MHz) |
μv |
50 |
50 |
50 |
50 |
50 |
|
Corona visual test P/C |
kv |
18/22 |
18/22 |
18/22 |
18/22 |
18/22 |
|
Power frequency electric arc voltage |
ka |
0.12S/20kA |
0.12S/20kA |
0.12S/20kA |
0.12S/20kA |
0.12S/20kA |
|
Impulse puncture voltage |
P.U |
2.8 |
2.8 |
2.8 |
2.8 |
2.8 |
|
Net weight per unit |
kg |
7.1 |
7.2 |
9.4 |
9.6 |
9.5 |
Characteristics of U160BP Anti-Pollution Insulators
1. Ultra-High Mechanical Strength (160kN)
Rated Mechanical Load (SML): 160 kN (16.3 tons), capable of withstanding extreme mechanical stresses from conductors, wind loads, ice, and snow.
High Safety Factor: Designed with a safety margin of 2.5 times or higher to ensure reliability under harsh conditions (e.g., typhoons, ice storms).
2. Superior Anti-Pollution Flashover Performance
Optimized Shed Design: Featuring large-diameter sheds, deep ribs, or alternating shed arrangements to increase the creepage distance (e.g., ≥31mm/kV), this design prevents pollution buildup and flashover.
Self-Cleaning Property: The smooth, hydrophobic glass surface enables rainwater to easily wash away contaminants, thereby reducing the need for manual cleaning.
3. High Electrical Insulation Performance
Rated Voltage: Generally applied in 110kV–500kV lines (160kN indicates mechanical strength; voltage rating varies by model).
Lightning & Power Frequency Withstand: Lightning impulse withstand voltage is ≥1100kV, and wet power frequency withstand voltage is ≥550kV (specific values differ according to the standard).
4. Environmental Adaptability
Extreme Weather Resistance: Functions in temperatures ranging from -40°C to +80°C, and is resistant to UV rays, salt fog, and industrial pollution.
Zero-Value Self-Destruction: In the event of puncture, the glass shell shatters, allowing for easy identification of faulty units during inspections (eliminating the need for manual testing).
5. Long Service Life & Low Maintenance
No Zero-Value Testing Required: Glass insulators are free from internal defects, negating the necessity for periodic zero-value tests.
Service Life of ≥30 Years: The glass material resists aging, surpassing the typical lifespan of composite insulators, which is usually 20–25 years.
6. Safety & Environmental Benefits
No Hidden Defects: Manufacturing defects, such as bubbles and cracks, are easily detectable, ensuring reliability.
Recyclable: Glass and metal components can be separated and recycled, minimizing environmental impact.
Typical Applications
HV/EHV Transmission Lines: Including 220kV and 500kV towers, particularly in heavily polluted areas (Class III/IV).
Long-Span Projects: Involving river crossings or mountainous terrain that necessitate high mechanical strength.
Selection Considerations
Voltage Rating Matching: A 160kN rating signifies mechanical strength; ensure the model's voltage rating matches (e.g., FXBW-160kN/110).
Pollution Class: Choose the appropriate creepage distance according to GB/T 26218 or IEC 60815 standards.
Characterized by its high strength, reliability, and low maintenance requirements, the 160kN anti-pollution glass insulator is the ideal selection for high-voltage transmission lines in areas with pollution.
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Due to the time difference, we may not be able to reply to you immediately. We will reply to your email as soon as we start working.