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China GW13-15 Isolating Switch Suppliers - Reliable Outdoor Disconnect Factory for Overhead Distribution Systems
Product Overview
The GW13-15 Isolating Switch is a manually operated disconnect switch engineered for outdoor overhead distribution systems. Designed for circuit sectionalizing and isolation at voltages up to 38kV, it delivers dependable performance with rated currents of 400A or 630A. Available in both 12kV and 36kV versions, the switch features a self-locking mechanism and a 90-degree blade opening for clear visual isolation. Constructed with silver-plated copper components and your choice of porcelain or polymer insulators, it meets IEC 62271-102 standards and operates reliably in heavy pollution environments at altitudes up to 1000 meters and ambient temperatures up to 40°C.
Product Features
Wide voltage range with 12kV and 36kV rated options
High mechanical durability with self-locking mechanism
Clear visual break with 90-degree blade opening position
Excellent insulation performance with lightning impulse withstand up to 170kV
Available with porcelain or polymer insulators to suit different environments
Corrosion-resistant construction with silver-plated copper current-carrying parts
Robust hot-dip galvanized steel channel base for long-term outdoor use
Flexible configuration with optional mounting brackets, terminal clamps, and loadbuster hooks
Compliant with international standard IEC 62271-102:2001
Product Advantages
Enhanced Safety
The 90-degree blade opening and self-locking mechanism provide secure visual isolation, protecting personnel during maintenance.
Reliable Performance
High short-circuit withstand capability (up to 20kA) and excellent insulation ratings ensure stable operation under fault conditions.
Weather Resistance
Designed for heavy pollution areas and wet conditions, with verified dry and wet power frequency withstand voltage performance.
Durable Materials
Silver-plated copper blades and brass/copper terminal pads offer superior conductivity and long-term corrosion resistance.
Easy Installation
Lightweight design with single carton packaging and optional pre-assembled accessories simplifies on-site setup.
Versatile Application
Compatible with overhead distribution systems and customizable with loadbuster hooks for load-breaking operations.
Applications
Outdoor overhead distribution line sectionalizing
Circuit isolation during maintenance and repair work
Substation feeder isolation in medium-voltage networks
Industrial and utility power distribution systems
Rural and urban overhead line applications in heavy pollution environments
Technical Parameters
| Electrical Characteristics | |||
|---|---|---|---|
| Parameter | Specification | Unit | |
| Rated voltage of Disconnector | 12 | 36 | kV |
| Rated current | 400 / 630 | A | |
| Rated frequency | 50 | Hz | |
| Lighting Impulse withstand voltage | 95 | 170 | kV |
| Power frequency withstand voltage in 1 min (Dry) | 42 | 70 | kV |
| Power frequency withstand voltage in 10 s (Wet) | 36 | 60 | kV |
| Rated short circuit withstand current | 16 (for 400A) / 20 (for 630A) | kA | |
| Rated short circuit withstand time | 3 | s | |
| Rated peak withstand current | 40 (for 400A) / 50 (for 630A) | kA | |
| Creepage | 25 | 20 | mm/kV |
| Blade stopped degree in opening position | 90 | Degree | |
| Spare Parts | |
|---|---|
| Item | Availability / Specification |
| Operating Mechanism | with |
| Arcing distinguishing chamber | with / without |
| Operating rod length | Customerized |
| Material Specifications | |
|---|---|
| Component | Material Used |
| Terminal pads | Brass / Copper plated by silver |
| Blade | Copper plated by silver |
| Insulator | Porcelain / Polymer |
| Channel Base | Steel hot galvanized |
| Operating eye | Brass |
| Service Conditions | ||
|---|---|---|
| Parameter | Value | Unit |
| Environment maximum temperature | 40 | ℃ |
| Pollution level | Heavy | - |
| Altitude | ≤ 1000 | Meter |
Frequently Asked Questions
QWhat voltage and current ratings are available for the GW13-15 switch?
The GW13-15 Isolating Switch is available in rated voltages of 12kV and 36kV (designed for systems up to 38kV) and accommodates rated current options of 400A or 630A.
QWhat type of insulators can be selected for this switch?
Customers can select either traditional porcelain or high-performance polymer insulators, providing flexibility for different project needs and atmospheric environments.
QHow does the 90-degree blade opening enhance operator safety?
The clear 90-degree blade opening provides immediate and reliable visual isolation confirmation for maintenance personnel, preventing accidental contact or confusion regarding circuit energization.
QWhat are the short-circuit withstand specifications of the GW13-15?
The switch provides a rated short-circuit withstand current of 16kA (for 400A models) and 20kA (for 630A models) over a 3-second duration, with peak withstand ratings reaching 40kA and 50kA respectively.
QCan the switch operate in polluted or coastal environments?
Yes, the GW13-15 is rated for heavy pollution environments. It features hot-dip galvanized steel channel bases and silver-plated copper parts for exceptional corrosion and environmental resistance.
QWhich international standards does the GW13-15 disconnect switch satisfy?
The equipment strictly adheres to the international electrical standard IEC 62271-102:2001, ensuring full compliance for commercial, utility, and industrial distribution installations.
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