Electrical Control Rooms
CID Buildings designs and manufactures electrical control rooms. They may contain computer systems, surveillance devices,
Can electrical control boxes be installed in the computer room
Electrical control boxes can only be installed in a computer room if they are directly associated with the operation of IT equipment and the room meets NEC and NFPA 75 requirements.
NEC and IT Room Requirements
According to Article 645 of the NEC, a computer or IT room must meet specific criteria before certain wiring and equipment rules can be applied. These include:
- A disconnecting means must be provided for the room's electrical system.
- The room must have a dedicated HVAC system.
- Only listed communications and IT equipment can be installed.
- The room must be accessible only to operators and maintainers.
- It must be separated from other building occupancies by fire-resistant construction.
- Only equipment and wiring associated with IT operations can be installed in the room .
If these conditions are not met, general NEC wiring rules apply, which may restrict the installation of control boxes not directly related to IT operations .
Placement and Safety Considerations
- Electrical control boxes must be associated with IT equipment; unrelated panels or control boxes are generally not permitted in the IT room .
- Clearances must be maintained in front of panels and transformers, and equipment should not obstruct access or violate dedicated workspace requirements .
- If installed under a raised floor, control boxes must comply with Sec. 645.5, including secure fastening and protection from physical damage .
- Grounding and bonding requirements, such as connection to a signal reference grid, are necessary to minimize potential differences between IT components .
Practical Guidance
- Only install control boxes that serve IT equipment. Non-IT electrical panels should be located in a separate electrical room.
- Ensure fire protection, HVAC, and access restrictions are in place before installation.
- Use listed enclosures and raceways for any wiring under raised floors or in accessible areas.
- Maintain ampacity and cord length requirements for branch circuits supplying IT equipment .
In summary, electrical control boxes can be installed in a computer room only if they are integral to IT operations and the room meets NEC Article 645 and NFPA 75 standards. Otherwise, they should be placed in a dedicated electrical room to comply with safety and code requirements.
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