8.2 Adequate clearance8.2.1 GeneralFor the purpose of the following test clauses in this document, the term 'adequate clearance' has the meaning given in 8.2.2 or 8.2.3.8.2.2 Low-voltage machines (rated voltages not exceeding 1000 V a.c. and 1500 V d.c.)The test device (sphere, finger, wire, etc.) does not touch the live parts or moving parts other than non-dangerous parts such as smooth rotating shafts.8.2 3 High-voltage machines (rated voltages exceeding 1000 V a.c. and 1500 V d.c.)When the test device is placed in the most unfavourable position, the machine shall be capable of withstanding the dielectric test applicable to the machine.This dielectric test requirement may be replaced by a specified clearance dimension in air which would ensure that this test would be satisfactory under the most unfavourable electrical field configuration.