When multiple systems are placed on a building, what must be ensured for safety?

In situations where multiple systems are installed on a building, having a directory at each disconnecting means is essential for safety. This requirement helps ensure that anyone working on or accessing the electrical systems can quickly and accurately identify which systems are connected to each disconnecting means. This is critical in emergency situations or during maintenance, as it prevents confusion and minimizes the risk of accidental disconnections or energized circuits.

Having a clear directory also aids in compliance with safety standards and regulations, providing detailed information about the systems controlled by each disconnect, thus ensuring that proper procedures are followed to safeguard both personnel and equipment. Without this directory, there is an increased risk of mishandling or miscommunication, which could lead to dangerous situations.