Let's break down how drywall (sheetrock, gypsum board) walls with metal studs interact with NEC 110.26 and 110.34 regarding Condition 1 working space.

Understanding the NEC Requirements NEC 110.26 (Working Space About Electrical Equipment)

This section is critical for safety. It dictates the minimum clear space required in front of electrical equipment that is likely to be examined, adjusted, serviced, or maintained while energized. This space must be clear of obstructions and large enough for a person to work safely. The depth (distance from the equipment) depends on the voltage to ground, and most importantly, the conditions opposite the equipment.

NEC 110.34 (Working Space and Guarding)

This section is specific to equipment operating at over 600 volts, nominal. While much of the underlying safety principles are the same as 110.26, the dimensions and conditions considered are more rigorous due to the higher voltages. Since your question doesn't specify a voltage, let's assume we are working with the requirements in 110.
26.

Conditions 1, 2, and 3 (NEC 110.26(A)(1)(a,b,c) and 110.34(A)(1))

These define the conditions opposite the electrical equipment, and therefore dictate the required depth of the working space.

Condition 1

Exposed live parts on one side and grounded parts (e.g., a grounded metal enclosure) on the other side. OR Exposed live parts on both sides.

Condition 2

Insulated surfaces on one side and grounded parts on the other side.

Condition 3

Insulated surfaces on both sides.

Analyzing the Drywall/Metal Stud Wall

The key question is: Does a drywall/sheetrock wall with metal studs qualify as being a grounded object? Metal Studs and Grounding

If the metal studs are intentionally and effectively grounded to the building's grounding system, then potentially, that wall could be considered a grounded object. However, simply having metal studs does not automatically make it grounded. The studs need to be properly bonded (connected) to the building's grounding electrode system.

Drywall (Sheetrock/Gypsum Board)

Drywall itself is an insulator. It does not conduct electricity, and therefore, by itself, it does not create a grounded object.

The Verdict

Here's a breakdown of possibilities:1. Drywall/Metal Studs NOT Grounded

If the metal studs are not effectively grounded, then the wall is considered an insulated surface. In this case, the space would more likely meet the conditions for

Condition 3.2. Drywall/Metal Studs Grounded

If the metal studs are effectively and intentionally grounded, then the situation becomes more complicated:

Exposed Live Parts Present

If there are exposed live parts on the electrical equipment, and the grounded metal stud wall is opposite, the conditions for

Condition 1 are met. Enclosed Electrical Equipment

If the electrical equipment has its live parts enclosed and protected such as being behind a cover, then this would likely be

Condition 2.

Important Considerations and Best Practices Intentional Grounding is Required

The most important thing is that the grounding of the metal studs must be intentional and verified. Do not assume they are grounded just because they are metal.

Local Codes and Interpretations

Local electrical codes and interpretations by the Authority Having Jurisdiction (AHJ) always prevail. Consult with your local inspector or a qualified electrician to get specific guidance for your project.

Safety First

Even if the minimum code requirements are met, consider the practical aspects of working on the equipment. Sometimes, providing extra space beyond the minimum makes the job safer and easier.

Documentation

If you are relying on the metal stud wall being grounded to meet a specific working space condition, document the grounding system and have it inspected.

Consider a Condition 3 Approach

Even if the metal studs are grounded, considering the situation as Condition 3 and providing that depth of working space is a safe and conservative approach.

In conclusion:

The drywall/metal stud wall does not automatically meet the requirements for any* working space condition. It depends on whether the metal studs are effectively grounded, and the presence of exposed live parts. Always consult with a qualified electrician to ensure your installation meets all applicable codes and provides a safe working environment. Flag for review