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Dual excellence in insulation and mechanical properties: Solid non-breakable ceramic structure, dry arc distance 368mm, creepage distance 1015mm, stable insulation; mechanical breaking load 12.5kN, capable of reliably supporting conductors and resisting external forces such as strong winds and ice coverage.
Strong weather resistance and pollution tolerance: Ceramic material has good chemical stability, anti-aging and anti-corrosion properties, and can adapt to outdoor high and low temperatures, ultraviolet rays, etc.; the umbrella skirt design enhances self-cleaning ability, reduces the risk of accumulated pollution flashover, and is suitable for areas with various pollution levels.
Low operating and maintenance costs: Column-type porcelain insulators do not require frequent maintenance, have few faults during long-term operation, and are easy to maintain; long service life, and can replace suspension and pin-type insulators, reducing the amount of hardware and lowering the overall cost and maintenance cost of the line.
Stable electrical performance: Low radio interference voltage (RIV ≤ 200μV), reduces the impact on communication equipment, and has excellent lightning impulse performance.
Customization: Supports OEM parameter fine-tuning, adjustable number of umbrella skirts, glaze color, and metal accessory materials, taking into account both general and personalized needs.
Model | ANSI 57-4 |
Creepage distance (mm) | 1015 |
Dry Arcing Distance(mm) | 368 |
Cantilever Strength(kN) | 12.5 |
Type application voltage (kV) | 55 |
Low frequency dry flashover voltage (kV) | 150 |
Low frequency wet flashover voltage (kV) | 125 |
Critical impulse flashover voltage, positive (kV) | 255 |
Critical impulse flashover voltage, negative (kV) | 340 |
Test voltage to ground (kV) | 44 |
Max RIV at 1000KHz (μv) | 200 |
Net weight, approximate (kg) | 16 |
Color | Brown or White |
High-voltage overhead transmission lines: Used for straight poles and angle poles, they provide insulation and support for the conductors, replacing traditional suspension and pin insulators, and simplifying the line structure.
Substation / Switching Station Equipment: For the insulation fixation of equipment such as busbars and disconnectors in substations.
Industrial and mining area power distribution projects: Applicable to industrial scenarios with heavy pollution or vibration.
Urban and rural power grid renovation projects: Standardized construction requirements for upgrading urban power grids and improving rural power grids.
1. What about your delivery time?
It should depend on your order quantity.
2. How can you guarantee quality?
Samples are available and we can send to you. The sample fee will be deducted from your first order. We always do the final inspection before shipment.
3. What is the payment terms?
T/T 30% deposit in advance, and 70% balance payment before shipment.
4. What else can you do for us?
We supply the customized services, reply your inquiry within 24 hours and support the excellent after-sales services.
