The Manufacturing Process of the HY5WS-17/50 Detachable Lightning Arrester

The HY5WS-17/50 detachable lightning arrester is a polymer-housed metal oxide surge protection device, specially designed for 10–20kV overhead distribution networks. As a detachable type, it allows convenient disassembly for maintenance or replacement, while featuring a gapless MOV core, high-energy absorption, and extended creepage distance—making it ideal for polluted, coastal, or high-altitude environments. With a silicone rubber insulation housing, it also offers enhanced hydrophobicity, UV resistance, and long service life, and is widely applied in medium-voltage grid protection, transformer inlet surge defense, and switchgear arresting systems.

🔧 Key Features

Model: YH5WS-17/50
Rated System Voltage: 10–20kV
Continuous Operating Voltage (Uc): 13.6kV
Nominal Discharge Current: 10kA (optional 5kA/20kA)
Insulation Housing: Silicone rubber, pollution-resistant
Design: Gapless metal oxide varistor, fixed mounting
Pollution Class: Class III / IV creepage distance
Standards: IEC 60099-4, GB/T 11032, GB 311.1

HY5WS-17/50 Drop-Out Type Zinc Oxide removable Lightning Arrester

⚙️ Technical Specifications

Parameter	Value
Rated Voltage	17kV
Continuous Operating Voltage	13.6kV
Nominal Discharge Current	10kA
High Current Impulse	100kA (4/10μs)
8/20μs Residual Voltage	≤45kV
Energy Handling	≥2.5kJ per kV of Uc
Creepage Distance	≥800mm (Pollution Class IV)
Housing Material	Silicone Polymer
Operating Temperature	–40°C to +60°C
Installation Altitude	≤3000m
Mounting Type	Fixed (Crossarm / Transformer)

HY5WS-17/50 Drop-Out Type Zinc Oxide removable Lightning Arrester

🌍 Application Scenarios

Surge protection for overhead 10–20kV lines
Input protection for pole-mounted or pad-mounted transformers
Medium-voltage switchgear arresting
High humidity, salt fog, or industrial pollution zones
Fixed installations where mechanical drop-out is not required

🧱 Product Structure Highlights

Silicone Housing: Weatherproof and UV-stable
Gapless MOV Core: Fast response and long durability
Long Creepage Path: For polluted, coastal, or desert environments
Corrosion-Resistant Terminals: Stainless steel or hot-dip galvanized
Quality Control: 100% routine test with digital discharge monitoring

❓ Frequently Asked Questions

• What’s the main difference between the YH5WS and HY5WZ models?
YH5WS is a fixed-mounted arrester with long creepage distance, while HY5WZ includes a drop-out disconnector for fault indication.

• Can this arrester be used in desert or marine areas?
Yes, its pollution-resistant silicone housing is designed for such extreme environments.

• Is mechanical dropout included in this model?
No. YH5WS is a fixed installation type. Use HY5WZ if you need a disconnector.

• What’s the lifespan of this arrester?
Typically 20+ years under IEC conditions, with periodic inspection.

• Are test certificates provided?
Yes. All arresters are factory-tested according to IEC 60099-4 standards and shipped with routine test reports.