Direct Grounding box

Protective Grouding Box

Product Description

The Direct Grounding Box is a fundamental component in electrical cable systems, designed to provide a simple and reliable low-resistance connection between cable metallic shields/sheaths and the earth grid. Unlike protective grounding boxes with surge arresters, this version focuses on establishing a permanent, low-impedance path for fault currents and induced voltages to dissipate safely into the ground. Its robust, sealed enclosure—typically constructed from corrosion-resistant materials like stainless steel or engineered polymers—houses heavy-duty copper busbars, compression lugs, and grounding terminals to ensure mechanical durability and electrical stability. Designed for direct burial or manhole installation, the box effectively mitigates touch voltages, reduces step potentials, and prevents sheath circulating currents in medium-voltage cable networks.

Ideal for utility distributions, industrial plants, and renewable energy farms, the Direct Grounding Box offers a maintenance-free solution for single-point grounding applications. The enclosure's IP68 rating guarantees protection against moisture, chemicals, and physical damage, making it suitable for harsh environments. By ensuring stable grounding performance, this box enhances system safety, minimizes electromagnetic interference, and extends cable service life.

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.