What happens when the disconnecting means is activated in an IT equipment room?

When the disconnecting means is activated in an IT equipment room, the appropriate response is that the input breakers to the IT room are tripped. This action effectively isolates the electrical supply to the IT equipment, ensuring that power is safely cut off without necessarily affecting the entire building's power supply.

This is particularly important in IT settings where sensitive equipment is housed. Tripping the input breakers protects the equipment from potential electrical faults while enabling maintenance or safety procedures to be carried out without risking damage to other systems or the safety of personnel.

It's essential to maintain operational integrity in larger facilities; therefore, the disconnecting means is generally designed to impact only the specific area it serves rather than the entire building. This allows for a focused approach to managing power—ensuring safety and facilitating quick access for troubleshooting or repairs within the IT room itself.