Yes, IT/Telecom equipment like switches, UPS systems, routers, and modems housed within an electrical room are generally subject to the same working space and dedicated space requirements as other electrical equipment like panelboards, depending on their voltage and function. Here's a breakdown of why and what aspects of the NEC apply

Why the NEC Applies:
Electrical Equipment

These devices require electrical power to operate and often have internal electrical components. Therefore, they fall under the scope of the NEC, which governs the safe installation and maintenance of electrical equipment.

Location

Placing them in an "electrical room" further strengthens the applicability of the NEC, as these rooms are primarily intended for electrical equipment.

Key NEC Articles that Apply



Article 110 - Requirements for Electrical Installations

This is a foundational article covering general requirements, including:

110.26 - Spaces About Electrical Equipment

This is the big one. It details the working space requirements (depth, width, and height) around electrical equipment. The required working space depends on the voltage to ground of the equipment and the presence of exposed live parts. See below for more details.

110.16 - Arc-Flash Hazard Warning

Requires appropriate arc-flash hazard warnings on electrical equipment that is likely to require examination, adjustment, servicing, or maintenance while energized.

110.25 - Lockable Disconnecting Means

May require lockable disconnecting means at the source of power to the equipment for safety during maintenance.

Article 645 - Information Technology Equipment

This article specifically addresses IT equipment.

645.5 - Supply Circuits and Interconnecting Cables

Covers wiring methods, grounding, and overcurrent protection specific to IT equipment.

645.10 - Uninterruptible Power Supplies (UPS)

Addresses the specific requirements for UPS systems within IT equipment installations.

645.11 - Disconnecting Means

Specifies the requirements for disconnecting means for IT equipment, often a shunt trip breaker or similar device.

Article 725 - Class 1, Class 2, and Class 3 Remote Control, Signaling, and Power-Limited Circuits

While not always applicable, if your IT equipment uses these types of circuits (e.g., low-voltage control wiring), Article 725 will apply.

Article 760 - Fire Alarm Systems

If any of your telecom equipment interfaces with or is part of a fire alarm system, this article becomes relevant.

Article 800 - Communications Circuits

This covers the installation requirements for communication cables and equipment.

Article 830 - Network-Powered Broadband Communications Systems

Applies to broadband communication systems that are powered over the network cabling.

Understanding Working Space (NEC 110.26)



Depth

The depth of the working space (distance from the front of the equipment) depends on the voltage to ground of the equipment and the conditions on the opposite side of the working space. Higher voltages and more hazardous conditions (e.g., exposed grounded parts or another live panelboard opposite) require greater depths.

Width

The width of the working space must be at least 30 inches (762 mm) wide or the width of the equipment, whichever is greater. This width must be maintained in front of the equipment.

Height

The height of the working space must be at least 6 1/2 feet (1.98 m) or the height of the equipment, whichever is greater.

Dedicated Space (NEC 110.26(E))



Clear Above

The space above the electrical equipment (up to a defined height depending on voltage) is to be dedicated to the electrical installation. Foreign equipment (e.g., plumbing, ductwork, non-electrical equipment) is generally prohibited within this dedicated space. This is often overlooked, but it's a key requirement.

Important Considerations



Voltage

The voltage of the equipment is a primary factor in determining the required working space clearances. Many IT devices operate at low voltages (e.g., 48V DC), but UPS systems often have higher voltage AC inputs and outputs (e.g., 120V, 208V, 480V).

Local Codes and Amendments

Always check local building codes and any amendments to the NEC that may be in effect in your jurisdiction. Local codes often have more stringent requirements.

Qualified Persons

Only qualified persons (as defined by the NEC) are allowed to work on or within the working space of energized electrical equipment.

Manufacturer's Instructions

Always follow the manufacturer's installation instructions for the specific equipment.

Cable Management

Proper cable management is critical to maintain working space, prevent damage, and facilitate maintenance.

Equipment Labeling

Clearly label all equipment and circuits for identification and safety.

Example Scenario

Let's say you have a UPS system with a 208V AC output located in an electrical room.1.

Working Space

You'll need to determine the required working space based on the voltage to ground (208V / √3 ≈ 120V) and the conditions on the other side of the working space. Refer to NEC Table 110.26(A)(1) to determine the required depth. You'll also need at least 30 inches of width and 6 1/2 feet of height.
2.

Dedicated Space

The space above the UPS needs to be clear of foreign equipment (ductwork, piping, etc.) for a certain distance, again depending on the voltage.3.

Disconnecting Means

A readily accessible disconnecting means (circuit breaker) for the UPS should be clearly labeled.

In summary, IT/Telecom equipment in an electrical room is generally subject to the same working space and dedicated space requirements as other electrical equipment, although Article 645 can modify some of the requirements. The specific requirements depend on the voltage, the type of equipment, and the local codes in effect. Consulting with a qualified electrical engineer or licensed electrician is always recommended to ensure compliance with the NEC. Flag for review