I-1, kufanele ibe bushelelezi futhi ibushelelezi, ingabi nemifantu, imiphetho ebukhali futhi ishiswe nezinye iziphambeko, ukusetshenziswa kwengilazi yokukhulisa nezinye izindawo kungabuyekezwa.
2, iketango lokuphinda kabili umthwalo wokuphepha njengomthwalo wokuhlola ozohlolwa. Iphinikhodi ye-shaft akufanele ikhubazeke unomphela futhi ikhululeke ukujikeleza ngemva kokuxegiswa. Ubude bomzimba akumele budlule ku-O.25% noma O.5mm. Amathani angu-300 wezikhathi ezi-2 ezilandelayo zomthwalo wokuphepha njengomthwalo wokuhlola ozohlolwa, amathani angaphezu kuka-300 izikhathi ezingu-1.33 zomthwalo wokuphepha njengomthwalo wokuhlola ozohlolwa.
3, i-shackle ingaba isampula yokuhlolwa kokwethembeka. Umthwalo uphindwe kabili umthwalo wokuhlola. Iketanga ngeke liphuke noma iketango lizolimala.
4, ukusetshenziswa kweketango lomthwalo wokuphepha kugunyaziwe ngu-M (4).
5, emzimbeni wenkinobho kufanele imakwe ngezinga lamandla, umthwalo wokuphepha nezinye izimpawu.
Isikhathi sokuthumela: Sep-18-2018