Design and Development of a Medium-Voltage Early Warning System for Boom Crane Operational Safety: Rancang Bangun Sistem Early Warning Tegangan Menengah untuk Keselamatan Kerja Boom Crane

Abstrak

Maintenance work on medium-voltage power lines using a boom crane carries a high risk of workplace accidents due to direct contact between the boom crane and 20 kV live conductors. This study aims to design and build a 20 kV voltage detection early warning system to improve the safety of boom crane operators in medium-voltage power line areas. The research employs the Research and Development (R&D) method, comprising the following stages: field observation, device design, device implementation, system testing, and evaluation of results. The system is designed using a non-contact electric field detection method with a copper wire antenna as the primary sensor. The detected signal is amplified using a BC547 transistor and produces an output in the form of an LED and a buzzer as early warning indicators. Test results show that the system is capable of detecting the presence of a 20 kV electric field starting at a distance of 2 meters from the conductor. At distances of 1 meter and 60 cm, the system provides a stronger warning response in the form of an increasing buzzer sound and a brighter LED light. The developed early warning system is capable of providing early warnings to operators before the crane boom enters a hazardous area, thereby supporting the implementation of a Zero Accident culture in the PT PLN work environment.

Kata kunci

• 20kV Voltage
• Boom Crane
• Early Warning SYstem
• Mediun-Voltage Network
• Workplace Safety