What should be assessed periodically for maintaining electrical safety in installations?

Periodic assessment of residual current devices (RCDs) is crucial for maintaining electrical safety in installations. RCDs are essential components that protect against electric shocks and electrical fires by detecting imbalances in electrical current. If a fault occurs, such as a current leak to the ground, RCDs can quickly cut off the electrical supply to prevent harm to individuals and damage to the installation.

Regular testing of RCDs ensures they are functioning correctly and can perform as intended in the event of a fault. This testing typically involves simulating a fault condition to verify that the RCD trips appropriately and within the required time frame. Operating conditions can change over time due to various factors, so periodic testing helps to confirm that the devices remain effective throughout their lifecycle.

Although assessments may also be applicable to new or older installations and thermal imaging results could provide valuable insights into overall system performance, the focus on RCDs specifically addresses a critical component of electrical safety that is often mandated by safety regulations and best practices in the industry.