Arc Flash PPE for Commissioning Teams: The Risk Between Construction and Operations

Commissioning has a way of making electrical risk look temporary.

A panel is only being opened for testing. A vendor is only on site for startup. A facility technician is only walking the room before turnover. Everyone has a reason for being there, but not everyone is working from the same electrical safety plan.

That gap matters once power starts moving through the system.

On data center and large industrial projects, construction crews, commissioning agents, OEM technicians, electrical contractors, facility teams, and operations staff can all pass through the same electrical rooms in the same week. Some follow the construction safety plan. Some follow their employer’s PPE policy. Some assume the permanent site standard already applies.

Arc flash PPE can get treated like something to finalize at handover.

It belongs much earlier in the process.

Before first energization, teams need one clear standard for who can approach energized equipment, what protection they need, and how that standard applies across every company working on site.

Why Does Energization Change the PPE Conversation?

Energization changes the PPE conversation because the electrical system can now expose workers to shock, arc flash, arc blast, and burn hazards. The work may still look like construction, but the controls need to match energized electrical risk.

This matters because commissioning often includes tasks that cannot happen until equipment has power:

• A technician may need to verify voltage. 

• A vendor may test a control sequence. 

• A commissioning team may confirm that transfer switches, breakers, alarms, relays, or protective devices perform as intended.

OSHA’s rule on selection and use of electrical work practices requires live parts to be deenergized before employees work on or near them unless deenergizing creates added hazards or cannot be done due to equipment design or operational limits. OSHA also recognizes that some tests require energized conditions, but that does not make the work casual. The hazard still needs controls.

Once equipment is energized, the site needs task-based controls, not assumptions based on how small or routine the work appears.

Who Is Responsible for Arc Flash PPE on a Multi-Employer Site?

Each employer must protect its own employees, but several employers may share responsibility for the same hazardous condition on a multi-employer worksite. During commissioning, that matters because the owner, general contractor, electrical contractor, commissioning authority, vendors, and facility team may all affect the work.

OSHA’s Multi-Employer Citation Policy says more than one employer may be cited for a hazardous condition on a multi-employer worksite. OSHA looks at whether an employer created the hazard, exposed workers to it, had responsibility to correct it, or controlled the worksite.

Responsibility Can Overlap, But It Should Not Be Assumed

That does not mean every employer has the same role.

It does mean arc flash PPE cannot fall into a gray area during handover. Before work begins, the project team should be clear on:

• Who controls access to energized electrical areas

• Which employer is responsible for each crew’s PPE

• What site-wide arc flash PPE standard applies

• How vendors and OEM technicians will meet that standard

• Who communicates energized status changes before each task

• How temporary energization, testing, and punch-list work will be controlled

On construction sites, OSHA’s 1926.416 electrical safety requirements require employers to determine whether energized circuits are present before work begins and tell employees about the hazards and protective measures. OSHA’s 1926.417 lockout and tagging rule also requires deenergized circuits and equipment to be tagged at points where they can be energized.

These requirements are especially relevant during commissioning, when crews need clear direction on what is energized, what is locked out, and what PPE applies before work begins.

Crews need to know what is energized, what is deenergized, what may become energized, and which PPE standard applies before they enter the work area. Without that clarity, arc flash PPE becomes a company-by-company decision instead of a coordinated site control.

Where Do Arc Flash PPE Expectations Usually Break Down?

Arc flash PPE expectations usually break down at handoff points. The risk rises when equipment status changes, new crews enter the area, or workers rely on old assumptions about who controls the space.

These are the points where a written PPE standard needs to become a field-level instruction.

What Should Teams Standardize Before First Energization?

Safety teams should standardize arc flash PPE rules before first energization. The best time to align expectations is before contractors, vendors, commissioning teams, and facility staff start working around live equipment.

The simplest way to do this is to build a commissioning PPE matrix that connects equipment status, task type, worker role, required PPE, access rules, and responsible employer.

A practical commissioning PPE plan should cover these items:

1. Energization status: Name which systems are energized, deenergized, temporarily energized, or pending energization.

2. Minimum arc flash PPE: Define the baseline site requirement and the task-based PPE required for higher-risk electrical work.

3. Qualified worker rules: Define who can open equipment, perform testing, cross approach boundaries, or enter controlled electrical areas.

4. Vendor and contractor requirements: Require outside teams to meet the site’s arc flash PPE standard before they arrive.

5. Label and study status: Identify where labels are final, where labels are pending, and what interim controls apply.

6. Work permits and access control: Set the rules for energized work permits, barricades, attendants, and restricted entry.

7. PPE issuing and replacement: Decide how workers receive PPE, how sizing gets handled, and how damaged or missing gear gets replaced.

8. Handover documentation: Transfer PPE rules, energized status, arc flash studies, labels, and open issues to operations.

On large projects, the problem is rarely the checklist itself. The problem is making sure every crew knows who owns each part of it.

How Does Skanwear Help Standardize Arc Flash PPE?

Commissioning is a difficult time to manage arc flash PPE because the workforce is still changing. Skanwear helps companies bring control to that transition.

Rather than treating arc flash PPE as a last-minute order before energization, Skanwear supports a managed PPE program that helps teams define what workers need, issue it consistently, and carry that standard into normal operations.

Skanwear can support commissioning and handover by helping teams address:

• Arc-rated apparel selection that reflects real electrical work, task conditions, and site requirements

• Fit and sizing support so workers are not forced into poorly fitted gear that affects comfort, movement, or daily use

• Consistent PPE standards across contractors, vendors, facility teams, and operations staff

• Controlled issuing and replacement so teams know who has what gear and when it needs to be updated

• Program visibility through SAFELINE to help manage ordering, allocation, tracking, and PPE control

• Multi-site and global standardization for companies that need the same level of protection across locations, teams, and regions

When Skanwear is involved early, safety teams can move into energization and handover with a clearer PPE standard, fewer gaps between employers, and a program that supports the people doing the work.

Speak with Skanwear today to build an arc flash PPE program that supports commissioning, energization, testing, and handover before PPE drift becomes part of daily operations.