The works with the energized electrical substation methodology have as main objective to repair, maintain, modify and/or perform interventions on the different elements that compose an electrical substation, without the need of repairing, maintaining, modify and/or perform interventions on the different elements that make up an electrical substation, without the need to interrupt or suspend the electrical supply service, maintaining and improving the reliability of the system. without interrupting or suspending the electrical supply service, maintaining and improving the reliability of the system. Live works in energized electrical substations acquire a high degree of importance at the regulatory level, given the requirements to ensure the provision of a high quality service.