Penerapan Metode Jala Sudut Proteksi dan Bola Bergulir pada Sistem Proteksi Petir Eksternal yang Diaplikasikan pada Gedung W Universitas Kristen Petra

摘要

Lightning protection system consist of external protection, grounding system and internal protection. Three methods to determine air termination are mesh size method, protective angle method and rolling sphere method. This paper describes the application of those methods on W building Petra Christian University. The result show that the building needs more lightning protection system based on rolling sphere method analysis.