Live working can be considered a contribution to safety at work, as it is an example of electrical installation maintenance with the zero accidents philosophy. The purpose of this paper is to promote the concepts of maintenance work without accidents or with “zero accidents”. Live working can be identified as an unquestionable foundation of business excellence. This paper introduces the legitimacy of implementing and carrying out live working from the perspective of safety and health at work, critically analyses accidents that happen at work in a de-energized state and arguments the goals of implementing live work as work with “zero injuries”. Organisations with an integrated management system have excellent organisational conditions for safe implementation of live work and can therefore achieve the goal “zero defects” or the idea “zero accidents” or “zero injuries” at work due to electrical shock.