Protective Grounding Box

Protective Grounding Box

Product Description

The Protective Grounding Box is a critical safety device designed for medium and high-voltage cable systems, providing centralized and secure grounding points while integrating surge protection functions. This robust enclosure typically houses zinc oxide (ZnO) surge arresters, grounding connectors, and monitoring elements, offering comprehensive overvoltage suppression and fault current management for cable sheaths, shields, or critical equipment connections. Its sealed, corrosion-resistant design ensures reliable operation in harsh environments, including direct burial, underground installations, or exposed outdoor applications. By diverting lightning strikes, switching surges, and fault currents safely to the ground, the box prevents insulation breakdown, equipment damage, and system outages, enhancing the overall reliability of power distribution networks.

Engineered for utility, industrial, and renewable energy projects, the Protective Grounding Box simplifies maintenance and improves safety through its modular and accessible design. Features such as visual fault indicators, test points, and optional remote monitoring interfaces facilitate easy inspection and troubleshooting without disrupting system operation. This solution is available in various configurations to support single-point grounding, cross-bonding, or transformer neutral grounding applications. Its durable construction (often stainless steel or engineering plastics with IP68 rating) guarantees long-term performance in corrosive, moist, or high-temperature conditions.

Feature

• 110kV Protective Grounding Boxs are used in high voltage power systems to protect the outer sheath insulation of three-phase high voltage cables from over voltage damage.

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

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

• Conductor connectors are all tin-plated 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.

• The box can be installed outdoor and is not affected by unusual weather.