ITE Co., Ltd. (CEO Kim In-tae) announced that it showcased its “Leakage Current Limitation and Alarm Technology for Ungrounded Low-Voltage Standalone Systems During Flooding” at the International Electric Power Exhibition.

ITE is a disaster-safety specialized company that has developed various disaster-safety products capable of predicting, diagnosing, detecting, preparing for, responding to, and recovering from electrical disasters. Its solutions are based on New Excellent Technology (NET) certifications aligned with the government's disaster-safety policy.

ITE, in cooperation with Jungwoo Relay, unveiled a solution that enables safe use of electricity even when distribution panels or motors become submerged. The technology limits leakage current, prevents electric shock and electrical fires, detects and alarms faulted lines, provides automatic shutdown, and ensures safe power supply by preventing outage accidents. Its performance and stability were verified through tests conducted by KERI, KTC, KOMERI, and Busan Technopark, leading to the acquisition of the “Disaster Safety New Technology Certificate” this March.

The most significant feature of this solution is its ability to continuously and automatically detect and control all electrical faults—including connection failures—which previously led to unavoidable accidents such as fires, electric shock, and equipment damage. Even if live conductors or loads are submerged due to equipment deterioration or insulation failure, or if leakage/ground faults occur, the system detects leakage current, issues alarms, and maintains normal voltage.
In the event of direct or indirect contact with submerged or energized parts, the system limits ground or human-body leakage current to below 5mA, preventing electric shock and power failure.

CEO Kim In-tae emphasized:
“When ground faults, leakage currents, or insulation deterioration cause current to flow to earth, our system limits and detects leakage current below 5mA to prevent electric shock, fire, or power outage. The system detects reductions in insulation resistance—such as 50kΩ or 100kΩ—based on preset leakage-current thresholds and recovers proper phase voltage in cases of phase loss, open circuits, increased resistance, poor connections, or abnormal voltage inflow.”
He added, “Even when voltage and current become unbalanced, the system restores balance, and if the human body directly or indirectly contacts an energized conductor, leakage current to the body is limited below 5mA, preventing fatal shock. This ensures arcs and electrical-shock accidents cannot occur, while allowing early fault detection.”

According to the Korean Electrical Code (KEC), underwater lighting systems for swimming pools and similar locations must be supplied through an isolation transformer, with specified voltage requirements. Additional guidelines exist for special environments such as bathhouses and water-based facilities.
ITE’s solution, however, can be applied beyond disaster-prevention facilities — to any environment where electricity and water may coexist, such as swimming pools, water parks, bathrooms, kitchens, and locations prone to flooding.
It is also effective for outdoor electrical installations such as streetlights, traffic signals, and signage, where leakage risks increase during heavy rainfall. Its technology is evaluated as essential for construction sites and industrial locations where electric-shock accidents occur frequently.

Currently, the solution is supplied mainly to schools and major public facilities through unit-price contracts. Recently, it has been applied to Seoul Facilities Corporation’s leakage-current-limited streetlight panels, KEPCO Gangwon Headquarters’ non-electric-shock continuous power supply system, and local government disaster-risk improvement projects. It has also been deployed at Segyo Middle School, Yangpyeong Student Camp, and Gyeryong City Military Experience Center.