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Direct Grouding Box

Product Description

The Direct Grounding Box represents an essential element in electrical cable infrastructure, specifically engineered to establish and maintain a permanent, low-resistance connection between cable metallic shields/sheaths and the ground grid. This specialized device focuses exclusively on creating a reliable, low-impedance pathway for fault currents and induced voltages to safely dissipate into the earth, distinguishing it from more complex protective grounding boxes that incorporate surge arresters. The unit features a meticulously designed, fully sealed enclosure constructed from premium corrosion-resistant materials such as 304 stainless steel or fiber-reinforced engineering polymers, ensuring long-term durability in challenging environments. Within this protective housing, heavy-duty tinned copper busbars, precision-engineered compression lugs, and specially treated grounding terminals work in concert to provide exceptional electrical conductivity and mechanical stability. The box's advanced connection system maintains consistent pressure at all interface points, preventing loosening due to thermal cycling or vibration, thereby guaranteeing stable electrical performance throughout its operational lifetime.

Engineered for straightforward deployment in utility distribution networks, industrial facilities, and renewable energy installations, the Direct Grounding Box offers a completely maintenance-free solution for single-point grounding applications. Its robust IP68-rated enclosure provides complete protection against moisture infiltration, chemical exposure, and physical impact, making it ideal for direct burial, manhole installation, or placement in other demanding locations. The implementation of this grounding solution significantly enhances overall system safety by effectively mitigating touch voltages and reducing step potentials in medium-voltage cable networks. Furthermore, it plays a crucial role in minimizing electromagnetic interference, preventing sheath circulating currents, and extending cable service life through consistent voltage stabilization. The unit's straightforward design eliminates the need for regular maintenance or adjustments, while its corrosion-resistant construction ensures decades of reliable performance without degradation, delivering exceptional long-term value and reliability for critical electrical infrastructure projects.

Feature

• 110kV cable sheath 3-phase 3-wire direct earthing box is suitable for direct earthing connection of metal sheath of 3-phase single-circuit high-voltage cables.

• The product internal main protector BHQ-2 cable sheath protector, the overall structure of the product is simple, reliable sealing.

• The product shell and internal main structure is welded stainless steel, and the insulating parts are treated with moisture-proof.

• Conductor connectors are all tinplated and crimped with bolts, which is simple to install and easy to disengage between the metal sheath of the cable and the protector during the preventive test.