Untuk Operasional harus tersedia lampu penerangan (tower lamp) yangcukup untuk menerangi front –front pada saat penggalian OB, cleaning dan Coal Getting pada malam hari
For operations should be available lighting lamp (lamp tower) yangcukup to light up front – the front at the time of excavation, cleaning OB and Coal Getting at night
Operations should be available for lighting (lamp tower) yangcukup to illuminate the front -Front OB during excavation, cleaning and Coal Getting at night