LONGDIAN Products | Spring Equinox Arrives — Longdian High-Protection & Underwater Enclosures Guard Equipment in Every Scene
Mar.20, 2026
Tianjin Longdian Electric Engineering Co., Ltd.
Longdian High-Protection & Underwater Enclosures
Safeguarding Equipment Across All Scenarios
Today marks the Spring Equinox. With increasing rainfall and rising humidity, outdoor electrical, industrial control, and monitoring equipment face multiple challenges — moisture, standing water, and spray exposure.
Longdian High-Protection Enclosure (LD-GFHS) features a high-grade sealed structure delivering dustproof, waterproof, anti-corrosion, and impact-resistant performance. It is engineered for harsh outdoor conditions including spray, dust accumulation, and high humidity — reliably protecting outdoor power distribution, light poles, utility tunnels, and monitoring equipment.
Underwater Enclosure (LD-FHX) is purpose-built for flood seasons, low-lying areas, water-crossing, and submerged applications. It supports both short-term immersion and long-term underwater operation, creating a dependable "underwater fortress" for water conservancy, pipeline networks, detection systems, and emergency communications — eliminating leakage and short-circuit risks at the source.
Both the High-Protection Enclosure (LD-GFHS) and Underwater Enclosure (LD-FHX) have been tested and certified by the National Explosion-Proof Product Quality Inspection and Testing Center (Tianjin), achieving IP66 / IP67 / IP69 and IP68 high-protection ratings. The JXX Series Protection Junction Box (Underwater Junction Box) passed pressure and protection testing at 300 meters underwater at Shanghai Jiao Tong University's Underwater Technology Comprehensive Laboratory — certified compliant.
Spring Equinox starts a new journey — protection never stops. We remain committed to delivering first-class products and service with quality and speed.
High-Protection & Underwater Enclosures — LONGDIAN
Contributed by the Marketing Department
Writing & Photography: Changle Chang, Yaqi Liu
Reviewed by: Yaqi Liu, Jianguo Zhang
