Introducing the Zinc Oxide Arrester from Beierbian Group Co., Ltd—a groundbreaking, fully sealed, and exceptionally reliable lightning protection marvel designed specifically for 10kV power distribution systems. This state-of-the-art device is expertly engineered using a zinc oxide valve column, enhanced with upper and lower electrodes, all expertly encapsulated within silicone rubber. This combination offers unmatched characteristics that set a new standard in electrical safety:
- This innovative design expertly tackles and resolves the sealing challenges traditionally faced in arresters. By ingeniously merging the core and jacket into a unified, compact structure, it effectively eliminates any cavities that could lead to internal breathing issues. This advanced solution triumphantly overcomes the technical obstacles associated with preventing moisture ingress into internal components, safeguarding the device's integrity.
- Featuring a robust core with an extraordinary capacity to withstand internal overvoltage, this arrester demonstrates exceptional aging resistance, ensuring long-lasting performance and steadfast protection year after year, even under the most demanding conditions.
Incorporating a specially crafted valve plate alongside optimized core parameters, this device ensures the core can withstand challenges such as arc grounding, PT resonance, and a variety of operational overvoltages. It operates with unparalleled reliability under line voltage and endures 2.5 to 3 times power frequency overvoltage with ease. Its voltage withstand duration exceeds international standards by 1 to 3 orders of magnitude, guaranteeing supreme safety and operational durability for extended periods.






Exploring the Key Characteristics of Jacket Materials and Usage Environment:
Item | Unit | Norm |
Shore Hardness A | / | 60 |
Tensile Strength | mpa | ≥35 |
Breaking Elongation | % | ≥250 |
Oxygen Index | / | 45 |
Resistivity | Ω.m | ≥1×1013 |
Breakdown Strength | MV/m | ≥25 |
Tracking | kV | 4.5 |
Durability | Not less than 20 years |
Optimal Working Environment:
Meticulously crafted for flawless performance indoors and outdoors;
Operates effectively at awe-inspiring altitudes up to 3000m;
Withstands ambient temperatures from a crisp -40°C to a soothing +60°C;
Harmonizes with power supply frequencies ranging from a stable 48Hz to a lively 62Hz;
Guarantees that the power frequency voltage between terminals stays within ideal thresholds for extended longevity.
Built to resist seismic activities with intensity not surpassing 8 degrees.
Skillfully engineered to brave outdoor wind speeds soaring up to 35 meters/second;
Important Notes:
If you encounter conditions exceeding these standard parameters, our team is ready to offer custom solutions tailored to your needs.
Core Technical Parameters
Model | Nominal Voltage (rms) | Rated Voltage Of Arrester (rms) | Continuous Operating Voltage (rms) | DC 1mA reference voltage | The residual voltage under nominal discharge current | Steep wave impact residual voltage | 2ms square wave flow capacity | Operation Place |
YH5WS-3.8/17 | 3 | 3.8 | 2.0 | 7.5 | 17.0 | 19.6 | 100 |
Distribution Type |
YH5WS-5/15 | 3 | 5 | 4.0 | 7.5 | 15.0 | 17.3 | 150 | |
YH5WS-7.6/30 | 6 | 7.6 | 4.0 | 15.0 | 15.0 | 34.5 | 100 | |
YH5WS-10/30 | 6 | 10 | 8.0 | 15.0 | 30.0 | 34.6 | 150 | |
YH5WS-12.7/50 | 10 | 12.7 | 10 | 26.0 | 50.0 | 57.5 | 100 | |
YH5WS-16.5/50 | 10 | 16.5 | 12.7 | 26.0 | 50.0 | 57.5 | 100 | |
YH5WS-17/50 | 10 | 17 | 13.6 | 26.0 | 50.0 | 57.5 | 150 | |
YH5WS-17/45 | 10 | 17 | 13.6 | 25.0 | 45.0 | / | 250 | |
YH10WS-17/45 | 10 | 17 | 13.6 | 25.0 | 45.0 | / | 400 | |
YH5WZ-5/13.5 | 3 | 5 | 4.0 | 7.2 | 13.5 | 15.5 | 200 | Power Station Type |
YH5WZ-7.6/27 | 6 | 7.6 | 4.0 | 14.4 | 27.0 | 31.0 | 150 | |
YH5WZ-10/27 | 6 | 10 | 8.0 | 14.4 | 27.0 | 31.0 | 200 | |
YH5WZ-42/134 | 35 | 42 | 23.4 | 73 | 134 | 154 | 150 | |
YH5WZ-12.7/45 | 10 | 12.7 | 6.6 | 24.0 | 45.0 | 51.8 | 150 | |
YH5WZ-16.5/45 | 10 | 16.5 | 13.2 | 24.0 | 45.0 | 51.8 | 150 | |
YH5WZ-17/45 | 10 | 17 | 13.6 | 24.0 | 45.0 | 51.8 | 200 | |
YH5WZ-51/134 | 35 | 51 | 40.8 | 73.0 | 134 | 154 | 400 | |
YH10WZ-17/45 | 10 | 17 | 13.6 | 24.0 | 45.0 | 51.8 | 200 | |
YH10WZ-51/134 | 35 | 51 | 40.8 | 73.0 | 134 | 154 | 400 | |
YH5WR-5/13.5 | 3 | 5 | 4.0 | 7.2 | 13.5 | / | 400 | Capacitive Type |
YH5WR-7.6/27 | 6 | 7.6 | 4.0 | 13.8 | 27.0 | / | 400 | |
YH5WR-10/27 | 6 | 10 | 8.0 | 14.4 | 27.0 | / | 400 | |
YH5WR-12.7/45 | 10 | 12.7 | 6.6 | 23.0 | 45.0 | / | 400 | |
YH5WR 17/45 | 10 | 17 | 13.6 | 24.0 | 45.0 | / | 400 | |
YH5WX-51/134 | 35 | 51 | 40.8 | 73 | 134.0 | 154 | 400 | Line type |
YH1.5W-30/80 | 35 | 30 | 24 | 44 | 80.0 | / | 600 | Neutral Type |
Notice: Constructed with a robust Polymeric build for enhanced durability
Model | Nominal Voltage (rms) | Rated Voltage Of Arrester (rms) | Continuous Operating Voltage (rms) | DC 1mA Reference Voltage | The Residual Voltage Under Nominal Discharge Current | Steep Wave Impact Residual Voltage | 2ms Square Wave Flow Capacity | Operation Place |
Y5WS-5/15 | 3 | 5 | 4.0 | 7.5 | 15.0 | 17.3 | 150 | Distribution Type |
Y5WS-7.6/30 | 6 | 7.6 | 4.0 | 15.0 | 15.0 | 34.5 | 100 | |
Y5WS-10/30 | 6 | 10 | 8.0 | 15.0 | 30.0 | 34.6 | 150 | |
Y5WS-12.7/50 | 10 | 12.7 | 10 | 26.0 | 50.0 | 57.5 | 100 | |
Y5WS-16.5/50 | 10 | 16.5 | 12.7 | 26.0 | 50.0 | 57.5 | 100 | |
Y5WS-17/50 | 10 | 17 | 13.6 | 26.0 | 50.0 | 57.5 | 150 | |
Y5WZ-5/13.5 | 3 | 5 | 4.0 | 7.2 | 13.5 | 15.5 | 200 | Power Station Type |
Y5WZ-7.6/27 | 6 | 7.6 | 4.0 | 14.4 | 27.0 | 31.0 | 150 | |
Y5WZ-10/27 | 6 | 10 | 8.0 | 14.4 | 27.0 | 31.0 | 200 | |
Y5WZ-42/134 | 35 | 42 | 23.4 | 73 | 134 | 154 | 150 | |
Y5WZ-12.7/45 | 10 | 12.7 | 6.6 | 24.0 | 45.0 | 51.8 | 150 | |
Y5WZ-16.5/45 | 10 | 16.5 | 13.2 | 24.0 | 45.0 | 51.8 | 150 | |
Y5WZ-17/45 | 10 | 17 | 13.6 | 24.0 | 45.0 | 51.8 | 200 | |
Y5WZ-51/134 | 35 | 51 | 40.8 | 73.0 | 134 | 154 | 400 | |
Y5WR-5/13.5 | 3 | 5 | 4.0 | 7.2 | 13.5 | / | 400 | Capacitive Type |
Y5WR-7.6/27 | 6 | 7.6 | 4.0 | 13.8 | 27.0 | / | 400 | |
Y5WR-10/27 | 6 | 10 | 8.0 | 14.4 | 27.0 | / | 400 | |
Y5WR-12.7/45 | 10 | 12.7 | 6.6 | 23.0 | 45.0 | / | 400 | |
Y5WR-17/45 | 10 | 17 | 13.6 | 24.0 | 45.0 | / | 400 | |
Y1.5W-0.28/1.3 | 0.22 | 0.28 | 0.24 | 0.6 | 1.3 | / | 75 | Low Voltage |
Y1.5W-0.5/2.6 | 0.38 | 0.5 | 0.24 | 1.2 | 2.6 | / | 75 | |
Note:Porcelain |
Model |
Nominal Voltage |
Rated Voltage Of Arrester |
The Wave Front Steepness Of The Shock Discharge |
DC 1mA Reference Voltage kV Not Less Than |
1.2/50 Impulse Discharge Voltage Not Greater Than |
Wavefront Impulse Discharge Voltage
kV Not Greater Than | The Residual Voltage Under Nominal Discharge Current 8/20μs
kV Not Greater Than |
2000μs Square Wave Flow Capacity |
4/10μs Impulse Current Capacity |
Y5CS-7.6/27 | 6 | 7.6 | 63 | 16 | 35 | 43.8 | 27 | 75 | 25 |
Y5CZ-7.6/24 | 6 | 7.6 | 63 | 16 | 30 | 37.5 | 24 | 150 | 40 |
Y5CS-12.7/45 | 10 | 12.7 | 106 | 26 | 50 | 62.5 | 45 | 75 | 25 |
Y5CS-12.7/41 | 10 | 12.7 | 106 | 26 | 45 | 56.5 | 41 | 200 | 40 |
Y5CZ-42/124 | 35 | 42.0 | 343 | 82 | 134 | 168 | 124 | 200 | 40 |
Notice: Accompanied by Porcelain Series Gap specifications
Installation Guidelines
(1) Before installation, check the nameplate to ensure the arrester's system rated voltage corresponds with the installation site's system voltage;
(2) Offers installation versatility with options for suspension or vertical arrangement. For vertical setup, refrain from using the arrester as a load-supporting insulator;
(3) Optimize the lead wire length to sustain protective efficacy and minimize equipment stress.
Testing Protocols
- For bolstering operational reliability, conduct preventive tests every 4-5 years. Focus primarily on measuring U1mA across both terminals of the DC 1mA arrester.
- Before installation, affirm that the U1mA voltage is at least 97% of the original factory value and ensure this data is meticulously recorded.
- During preventive maintenance, ascertain that the U1mA voltage does not dip below 26kV.
- Important Note: Actively minimize harmonic elements in the DC power supply during tests. Subpar waveforms might lead to low U1mA readings.
- Newly launched, the 10kV synthetic insulated zinc oxide arrester for power distribution has triumphed through rigorous lab tests, proving its steadfast performance under outdoor line voltage for 15 months. Findings declare: exceptional jacket quality, remarkable arrester structural reliability, and unwavering core stability. Augmented by annual performance data from 2,000 units, this product assures unmatched protection, lower failure occurrences, and maintenance-free functionality throughout its operational lifespan.