(9)Every storage tank including its roof and all metal connections shall be electrically connected with very low earth resistance system in accordance with the standard and procedure as per an Indian standard or an international standard adopted by the Bureau of Indian Standards through harmonisation, specified by the Chief Inspector of Mines by a general order notified in the Official Gazette:Provided that where no such standard exists, an international standard specified by the Chief Inspector of Mines on merit, by a general order notified in the Official Gazette, may be accepted:Provided further that any other international standard equivalent to the harmonised standard, specified by the Chief Inspector of Mines on merit, by a general order notified in the Official Gazette, may also be accepted:Provided also that such earth resistance system shall not be used with storage tank in the mine unless the same has been tested and passed the test as per the applicable standards and the manager of the mine has kept a record of the type, details of specification, reference of the particular standards, test criteria as per the standards and status of testing, place of testing, copies of test report and any other relevant details.
