I. Product Overview
JY HBLQ-51/134 可触式后接式避雷器 is a fully shielded, separable arrester designed specifically for 35kV distribution systems. It features high-performance metal-oxide varistor (MOV) elements integrally molded with EPDM rubber, offering fully insulated, fully sealed, and touch-safe characteristics. Primarily used for cable-side connections in 35kV European-style ring main units (RMUs), cable branch boxes, and box-type substations, it is typically paired with European-style rear connectors to provide overvoltage protection for the distribution system, safeguarding equipment against damage from lightning and switching overvoltages.
II. Product Features
1. Electrical and Protective Performance
• Utilizes high-performance MOV elements with excellent volt-ampere characteristics and rapid response times; effectively absorbs energy from lightning and switching overvoltages, limits overvoltage amplitudes, and ensures the safety of equipment insulation.
• Features a built-in semi-conductive shielding layer that ensures uniform electric field distribution, eliminates the risk of partial discharge caused by electric field concentration, and enhances long-term operational reliability.
• Fully sealed structure with IP67-rated protection effectively prevents the ingress of moisture, dust, and oil; suitable for harsh environments (such as high humidity or dust) while maintaining stable arrester performance.
2. Installation and Construction Characteristics
• Separable plug-in design allows for convenient installation without special tools; connects directly to European-style rear connectors via standard interfaces, enabling rapid installation, significantly reduced setup time, and lower construction costs.
• Standardized interface design ensures compatibility with 35kV European-style distribution equipment and rear connectors, offering strong versatility and interchangeability to facilitate equipment maintenance and system expansion.
• Fully insulated, touch-safe structure ensures the arrester surface remains at ground potential after installation with no exposed live parts; requires no additional insulation protection, thereby ensuring the safety of operations and maintenance personnel.
3. Environmental and Weather Resistance
• Excellent weather resistance; operates reliably across a wide temperature range (-40°C to +90°C). The rubber maintains its elasticity and insulation performance without degradation—showing no risk of cracking, embrittlement, or deformation—making it suitable for various indoor and outdoor applications. • Resistant to aging, UV radiation, and ozone corrosion; offers a service life of over 20 years with maintenance-free operation, reducing long-term O&M costs.
• Chemically resistant and adaptable to harsh environments—including humid, dusty, and saline-mist conditions, as well as exposure to mild acids and alkalis—with no risk of corrosion or degradation; suitable for industrial facilities, coastal regions, and similar settings.
4. Mechanical and Safety Characteristics
• High mechanical strength; tear- and tensile-resistant; withstands mechanical stress during installation and operation without risk of breakage or cracking.
• Features designs that prevent accidental operation and electric shock; automatically grounds upon proper installation; the arrester surface is safe to touch, ensuring high safety levels suitable for power distribution areas with frequent personnel interaction.
• Compact structure and small footprint; suitable for installation in confined spaces with no restrictive spatial limitations.
III. Technical Parameters
| 参数类别 | 物品 | 技术规格 |
|---|---|---|
| 电气参数 | 适用系统电压 | 35千伏交流 |
| 额定电压 | 51千伏 | |
| Nominal Discharge Current | 10千安 | |
| Continuous Operating Voltage | 40.8千伏 | |
| DC Reference Voltage (U1mA) | ≥73千伏 | |
| LightningImpulseResidual Voltage(10kA) | ≤134千伏 | |
| ReferenceCurrentat Residual Voltage | ≤82千伏 | |
| 局部放电 | ≤5pC(1.05 Voltageat | |
| 结构和材料参数 | 主料 | EPDM Rubber(EPDM)+ Metal OxideResistance |
| 防护等级 | IP67 | |
| Structural Form | Fully ScreenedSeparableEuropean Rear Surge Arrester | |
| 环境参数 | 适用高度 | ≤2000m(High-Altitude Version Customizable) |
| 环境温度 | -40°C to +90°C(Operating Temperature), -40°C to +70°C(Storage Temperature) | |
| 相对湿度 | ≤100%(Non-Condensing) | |
| Seismic Grade | 8 Class | |
| 适用标准 | GB 11032 GaplessMetal OxideSurge Arrester / GB/T 12706 / IEC 60099-4Surge Arrester 4 : GaplessMetal OxideSurge Arrester |
IV. Scope of Application
1. Applicable Voltage Level: 35kV AC power systems.
2. Applicable Scenarios:
￮ Overvoltage protection on the cable side of European-style ring main units (RMUs), cable branch boxes, and box-type substations;
￮ 35kV cable distribution systems for urban distribution networks, industrial and mining enterprises, and commercial buildings;
￮ Overvoltage protection for cable terminations in various indoor and outdoor scenarios;
￮ Used in conjunction with European-style rear connectors to achieve fully shielded, separable overvoltage protection for cable terminations;
￮ Distribution scenarios involving frequent personnel contact and locations requiring high safety standards. 3. Functions and Applications: Provides overvoltage protection for 35kV distribution systems by absorbing energy from lightning and switching overvoltages and limiting overvoltage amplitudes. It safeguards equipment insulation and prevents damage, insulation breakdown, and tripping incidents caused by overvoltage.
V. Operating Conditions
1. Normal Operating Conditions
• Altitude: ≤2000m;
• Ambient temperature: -40°C to +90°C, without drastic temperature fluctuations;
• Relative humidity: ≤100% (non-condensing);
• Environmental conditions: Free from corrosive gases, flammable or explosive media, and severe vibration or shock;
• Installation method: Plug-in type; connects directly to the European-style rear 连接器 via a standard interface; installation space must accommodate the arrester’s bending radius requirements.
2. Special Operating Conditions (Customization Required)
• Altitude exceeding 2000m;
• Ambient temperature outside the -40°C to +90°C range;
• Environments with heavy pollution, salt spray, or chemical corrosion;
• Conditions involving strong vibration or severe shock;
• Scenarios requiring non-standard interfaces or special protection ratings.
VI. Installation and Maintenance
1. Installation Requirements
• Inspect the product’s appearance before installation; ensure the arrester is free from cracks, damage, and air bubbles, and that all accessories are complete and undamaged.
• Clean the European-style rear connector interface according to technical specifications; remove oil and dust to ensure the surface is dry and clean.
• Plug the arrester directly into the European-style rear connector interface; adjust the position to ensure a reliable connection and proper seating.
• After installation, verify that the arrester connection is secure (no looseness or misalignment) and the grounding connection is sound; confirm everything is correct to complete the installation.
2. Maintenance Requirements
• Periodically inspect the arrester’s appearance for cracks, damage, discharge marks, or accumulated dirt; ensure the connection between the arrester and the rear connector is tight, with no looseness or gaps.
• Periodically test the arrester’s insulation resistance, DC reference voltage, and leakage current to ensure performance meets requirements and to detect potential hazards in a timely manner. • Clean the surface of the surge arrester to remove accumulated dust and contaminants; keep the surface dry and clean, and protect it from oil and chemical corrosion.
• Promptly replace the surge arrester if any abnormalities occur—such as cracks, damage, discharge, or insulation resistance and leakage current values exceeding specified limits; operation of a defective unit is strictly prohibited.
VII. Precautions
1. Installation, commissioning, and maintenance must be performed by professionals qualified for high-voltage electrical installation; operation by unqualified personnel is strictly prohibited.
2. The product must be used in conjunction with compatible 35kV European-style distribution equipment and rear connectors; mismatching equipment specifications is strictly prohibited, as this may result in protection failure and safety accidents.
3. Unauthorized disassembly or modification of the product is prohibited and will void the warranty and safety guarantees; do not forcibly stretch or cut the surge arrester, as this may damage the rubber material and internal resistor elements.
4. Ensure the surge arrester is correctly installed and securely connected; poor contact may compromise protective performance.
5. Store in a dry, well-ventilated, and cool environment; protect from direct sunlight, high temperatures, humidity, and crushing forces; prevent contact with sharp objects that could damage the surge arrester.
6. Regularly inspect the condition of the surge arrester during operation; protect it from external crushing or impact to prevent damage or seal failure.
VIII. Model Designation
| 型号代码 | 意思 |
|---|---|
| JY | Enterprise Code (Jieyi) |
| 海博 | Rear Surge Arrester |
| 51 | Surge ArresterRatedVoltage, 51kV |
| 134 | NominalDischargeCurrentat Residual Voltage, ≤134kV |
| 35千伏 | VoltageClass, 35kV |
| Touchable Rear Surge Arrester | Fully ScreenedTouchableRear Surge Arrester |
IX. Standard Configuration List
| 不。 | 姓名 | 目的 |
|---|---|---|
| 1 | 弯头浪涌抑制器 | Protection , providing VoltageProtection |
| 2 | Source specification | 安装 |
| 3 | Source specification | InstallationFront |
| 4 | 安装 | 安装 |
| 5 | Product Certificate | Product Quality Certificate |
X. Applicable Standards and Certifications
• International Standard: IEC 60099-4 “Surge arresters – Part 4: Metal-oxide surge arresters without gaps for a.c. systems”;
• National Standards: GB 11032 “Metal-oxide surge arresters without gaps for a.c. systems”; GB/T 12706 “Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV)”;
• The product has passed type testing by the National Quality Supervision and Inspection Center for Surge Arresters and complies with national electric power industry standards.
XI. After-sales Service
• Warranty Period: 18 months from the date of manufacture or 12 months from the date of commissioning (whichever comes first);
• Free repair or replacement for products with quality defects during the warranty period;
• Technical support, installation guidance, and customized services (adaptation for special specifications or operating conditions) provided.
