Customizable Indoor High-Voltage Earthing Switch 35kV 38.5kV 40.5kV
Key attributes
| Brand | ROCKWILL |
| Model NO. | Customizable Indoor High-Voltage Earthing Switch 35kV 38.5kV 40.5kV |
| Rated voltage | 40.5kV |
| Rated frequency | 50/60Hz |
| Rated short-time withstand current | 31.5kA |
| Series | JN2 |
Product descriptions from the supplier
Description
Product Overview
The 40.5kV Indoor High-Voltage Earthing Switch is a specialized safety device designed for 40.5kV medium-voltage power systems. It provides a reliable earthing path for electrical equipment during maintenance, ensuring personnel safety by discharging residual voltage and preventing accidental re-energization.
Built to withstand harsh indoor operating conditions, it complies with international IEC and national GB standards, making it a critical safety component in substations, distribution cabinets, and industrial power systems.
Core Features
- Reliable Safety Protection: Creates a low-resistance earthing path to discharge residual voltage, eliminating electric shock risks during maintenance.
- Wide Environmental Adaptability: Operates stably in temperatures from -15°C to +40°C, with resistance to humidity and seismic activity up to 8 degrees.
- Robust Mechanical Design: High-strength insulating and conductive components ensure stable performance under short-circuit current conditions.
- Easy Operation: Manual operation mechanism with clear mechanical indication, enabling quick and safe earthing and disconnection.
- Standard Compliance: Fully compliant with IEC and GB standards, ensuring global applicability and reliable quality.
- Space-Saving Design: Compact structure optimized for installation in indoor switchgear and limited-space distribution cabinets.
Technical Parameters
|
Item
|
Unit
|
Data
|
|---|---|---|
|
Rated Voltage
|
KV
|
40.5
|
|
Rated Short - time Withstand Current
|
KA
|
31.5
|
|
Rated Short - circuit Duration
|
S
|
4
|
|
Rated Making Current for Short - circuit
|
KA
|
80
|
|
Rated Peak Withstand Current
|
KA
|
80
|
|
Pole - to - pole Center Distance
|
mm
|
300, 350, 400
|
|
Rated Insulation Level (1min Power Frequency Withstand Voltage)
|
KV
|
For Ground, Between Phases
|
|
Rated Insulation Level (Lightning Impulse Withstand Voltage)
|
KV
|
185
|
Environmental Requirements
- Temperature: -15°C to +40°C
- Altitude: ≤1000m (custom insulation levels available for higher elevations)
- Seismic Intensity: ≤8 degrees
- Humidity: Daily average ≤95%, Monthly average ≤90%
- Installation Environment: Indoor locations free from fire, explosion, severe pollution, chemical corrosion, and severe vibration.
Application Scenarios
- 40.5kV Substations: Essential safety device for earthing high-voltage equipment during maintenance.
- Indoor Switchgear: Integrated into high-voltage cabinets to provide earthing protection for power distribution systems.
- Industrial Power Distribution: Protects maintenance personnel in factories, mines, and industrial parks with 40.5kV power systems.
- Power Grid Infrastructure: Critical for safety in ring network units and terminal distribution stations.
- Renewable Energy Facilities: Used in solar and wind power substations to ensure safe maintenance of medium-voltage equipment.
Overall dimensions
|
Pole Pitch
|
H
|
A (Installation Holes on the Back of Channel Steel)
|
|---|---|---|
|
300
|
790
|
3 holes, 15×400×φC14
|
|
350
|
890
|
3 holes, 15×400×φC14
|
|
400
|
990
|
3 holes, 15×400×φC14
|
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