Analisis Perencanaan Sistem Proteksi Petir Eksternal Gedung Bertingkat Menggunakan Metode Rolling Sphere (Studi Kasus: The Arumaya Office Jakarta)

Lightning strike is a significant risk for human safety and infrastructure reliability, specific to the tropical country, Indonesia faces risk on high intensity of lightning strike and specific characteristics that differs to another region. This led to demand for specific standardize lightning protection system planning to minimize risk of structural damage or even electricity failure. A few approaches have been widely applied such as protection angle method, and mesh method. However, studies explained that those methods face a limitation and ineffective for high rise building. Thus, this research is conduct to apply a proper and standardize rolling sphere method by SNI-03-7015-2004 and IEC 62350. The research object is the project of “The Arumaya Office” and it shows that this project has Protection Class III with 90% efficiency and peak current up to 10 kA. This result is used to design the protection zone, air terminal placement and the material utilized.