This paper describes the conceptual and implementation solution for establishing a standard of low frequency electric field reference, as a laboratory service for changing the electric field measuring device for occupational exposure, with the aim of saving transport and exchanging devices in other countries. Also, the norms and requirements related to the power supply of the system with movable parallel plates, the requirements for the construction of the system of movable plates (electrical diagram of the whole system with protective rings) and the requirements for the calibration procedure are described. A measurement procedure (the algorithm itself) has been developed, by which the devices for measuring the electric field should be calibrated, and the specifications of one available device for measuring the electric field have been described. All the necessary calculations and measurements were performed in order to compare all the obtained results, it was proven that the standard in practice gives the values that are expected, i.e. the obtained calculations. Tests of influential quantities on the amount of electric field and capacitance, also relevant for estimating the uncertainty of the fabricated electric field standard, have been performed. The traceability of the electric field standard to the standards of electric quantities (current and voltage) was also established, as well as the calculation of uncertainty, which is an important step towards the accreditation of the electric field standard.