89Suitability of testing instruments

89 Suitability of testing instruments If tests are required to be performed on electricity infrastructure, an electrical installation or other equipment under the Act or these Regulations: (a) the testing instruments used must be designed for and capable of correctly performing the required tests; and (b) each testing instrument must be tested and calibrated, in accordance with the manufacturer's specifications and site requirements, to ensure it is in proper working order; and (c) the records of tests performed on testing instruments must be kept for at least 2 years.