VR SCENARIO Construction and EPC · United States Updated October 14, 2026

Lockout/Tagout During Commissioning and Startup: A VR Scenario for EPC Crews

VR lockout scenario for construction and commissioning crews based on OSHA 1926.417 and 1910.147: group lockout, handover from construction to operations and verification of zero energy.

QUICK ANSWER

During commissioning, construction crews work beside equipment that is being energized for the first time. OSHA 1926.417 requires de-energized circuits to be rendered inoperative and tagged, and 1910.147 governs energy control once the facility runs as a workplace. A VR scenario trains the group lockout, handover and verification steps where those two worlds meet.

What the Rule Requires

29 CFR 1926.417, Lockout and tagging of circuits: controls that are to be deactivated during the course of work on energized or de-energized equipment or circuits must be tagged, and equipment or circuits that are de-energized must be rendered inoperative and have tags attached at all points where they can be energized. Once the system is under the plant's energy control program, 29 CFR 1910.147 adds written procedures, application sequence, group lockout and periodic inspections.

The commissioning phase on an EPC project is where lockout mistakes cluster: temporary power, partial turnovers, vendor technicians and operators all touch the same equipment. The scenario follows a pump skid on the day it moves from the construction lockout system to the operating plant's program, with a group lockbox, a vendor tech and an operator who wants to bump the motor.

Hazards in This Scenario

Unexpected energization from a second source or temporary feed
Stored energy in hydraulic, pneumatic or spring systems
Confusion over whose lock controls the equipment during turnover
Bump tests performed while another crew is still working

The Procedure the Scenario Rehearses

Identify every energy source on the drawings and in the field
Notify affected workers and apply the group lockout procedure
Isolate, apply locks and tags at each point and release stored energy
Verify zero energy with a try-start and a tested meter
Transfer control formally at shift change or system turnover
Remove locks only after a headcount and equipment check

Mistakes the Scenario Is Built to Catch

Locking the motor starter but not the temporary power feed
Skipping the live-dead-live meter check
Assuming a vendor technician is covered by the group lock
Removing another person's lock to restart

Competence Assessment Matrix

Decision point	What the assessor sees	Pass standard
Source identification	Energy sources found versus present	All sources found, including temporary power
Isolation and lock	Points locked and tagged	Every isolation point controlled
Verification	Try-start and meter check	Zero energy verified before work
Turnover	Control transfer at shift or system handover	No gap in lockout during transfer

What VR Covers

A full skid with multiple, hidden energy sources
Group lockout and turnover practice with several roles
Error consequences shown without a real energized system
Records of each step completed or skipped

What VR Does Not Replace

Your site's written energy control procedures
Hands-on lock application on your hardware
Qualified electrical worker training for voltage testing

Scope of a One-Scenario Pilot

A pilot builds this scenario as a single module, in Unity or Unreal Engine depending on the visual fidelity the task needs and the headsets on site. It runs on standalone headsets, logs every learner decision, and exports a per-person record for your training file. It is measured against your current method with a test cohort before anything is scaled.

Frequently Asked Questions

Which OSHA standard covers lockout on a construction site?

Construction relies on 1926.417 for circuits and on general provisions; when a facility operates as a workplace, 1910.147 applies. Commissioning often involves both.

What is a group lockout?

A procedure where one authorized employee holds primary responsibility and each worker places a personal lock, often on a group lockbox, under 1910.147(f)(3).

Can VR teach voltage testing?

VR can teach sequence and judgment. Actual testing technique must be practiced with real meters by qualified workers.

Want this scenario built around your site?

We review your current procedure and tell you which parts can be rehearsed in VR and which still need hands-on practice.

Scope One Scenario