A craft person was cutting conduit containing pneumatic lines as part of a larger demolition project for a chemical manufacturing plant. A 24v line was cut by mistake using a portable band saw. The line powered safety items to remain for the duration of the demolition project, but it was not signed off or scheduled for demo at that time. The craft person did not know they cut the line by mistake until some minutes later when the others began investigating the loss of signal. Security did not notify area of the loss of signal, but are not required to. They only notify for alarms. This procedure will be re-visited.
Corrective actions included:
Work was stopped and notifications and investigations began. The crew had an immediate Safety Meeting to discuss the incident; and later it was also reviewed across the company during the next "Tool-Box" talk. The investigation used RCA methods to learn more and understand what appropriate corrective actions would be needed.
Labeling activities were changed to include the date and initials prior to cutting. All lines to remain, such as this type, were further identified with visual markers (tape). The owner plans to develop a standard demo plan template for the future. Security procedures regarding notification of signal loss is scheduled to be discussed.
Factors to consider at your site or on your project include, but are not limited to, the following:
- Ensure live lines are adequately marked so they are not cut by mistake.
- Verify items are to be cut/ demolished prior to cutting or removing them.
- Always review and understand the Scope of Work prior to beginning.
- Review your Health & Safety plans for any gaps and deficiencies.
Consider this example as you complete today’s work activities.
Think about the hazards associated with your particular work, and the steps that can be taken to increase safety on your job.