Which cables are approved for use in mines?
The answer is dependent on the State in which the mine is located.
In NSW, the system is that approval is needed from the Department of Mineral Resources for compliance to the NSW Coal Mines Regulation Act, 1982.
Olex have a Certificate of Approval. Olex is covered by Approval No: MDA ex 1355 – File No: M82/2882, Dated 27th February. 1985. The approval covers all cables made to AS1802 and AS1972 where applicable. I also understand there are amendments which Alfred Eiden had and could have covered AS2802.
In QLD, the system is that approval is needed from the Department of Minerals and Energy for compliance to the Queensland Coal Mining Act, 1925-1990. This Act stated that cable made and in conformance with Australian Standards 1802, 2802 and 1972 is deemed suitable to be used subject to the cable being installed, operated, maintained and overhauled in accordance with the provisions of the Act.
For cables made to other Standards, then specific approval must be obtained from the Inspector of Coal Mines at the Department. As our equipment is of an electrical nature, the approval would come from the Principal Electrical Inspector.
Olex have a Certificate of Approval, number QMD 91 6984 X for the use of 95mm2 XLPE 12.7/22kV PVC SWA PVC.
In Western Australia, Western Power (formerly SECWA) that hold jurisdiction in this area and authorises approvals.