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FHX-12 Outdoor Switchgear (Box-Type Substation)
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Product Details
Overview
Operating Conditions
- Ambient temperature: Maximum +50°C, minimum -40°C; maximum daily average temperature does not exceed 35°C.
- Relative humidity: Daily average does not exceed 95%, monthly average does not exceed 90%; Wind speed: Not exceeding 35 m/s.
- Pollution level: Class III.
- Ground slope: Not more than 3 degrees.
- Installation location: Installed in areas free of fire, explosion, violent vibration; well-ventilated, and without corrosive gases.
- When the equipment is installed at an altitude above 1000 meters, please specify this in particular, so that the company can adjust the SF6 pressure during manufacturing.
Product Features
High Safety:
- All live parts are enclosed in an SF6 gas tank, achieving full sealing and full insulation.
- Equipped with mechanical interlocks that meet the "five-prevention" requirements, eliminating misoperations.
- Incoming and outgoing cables adopt fully insulated, fully sealed touch-safe connections, maximizing personal safety.
- The cabinet is fitted with a pressure monitoring device to enable real-time pressure monitoring during operation.
- An explosion-proof pressure relief device is installed at the rear lower part of the gas tank, which has passed internal arc tests by authoritative institutions.
Flexible Solutions:
- Flexible incoming/outgoing line configurations: left-side, right-side, and bottom incoming/outgoing are supported.
- Flexible combination modes: arbitrary combinations can be realized between all units, allowing unrestricted expansion.
- Built-in busbar expansion method is adopted, fully meeting usability, economy, and aesthetic requirements.
- Flexible design schemes to meet on-site user requirements.
Compact and Rational Structure:
- All unit modules (except metering modules) have uniform dimensions; the compact size does not compromise construction convenience.
- Cost-effectiveness: Maintenance-free; small footprint; high cost performance; service life of over 30 years.

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