A boom does not have to touch a power line for a dangerous electrical event to be possible. The crew must account for the complete movement envelope, changing boom position, line characteristics, and the required protective arrangements. Do not choose a setup by measuring only the parked machine. Unfolding, placing, moving the hose, and folding can put different parts of the system near the conductors.
Use the controls
The responsible team determines applicable clearances and controls using the line information, equipment requirements, and job conditions. This talk does not supply a universal distance. Deenergization or other protective arrangements must be verified through the proper authority, not assumed from a quiet wire or a nearby switch. Use designated personnel and communication where the plan requires them. Do not rely on a hose, tires, gloves, or a tool handle as insulation against an overhead electrical exposure.
Work within the safe plan
Stop if the planned boundary cannot be maintained or if the operator loses the required view or communication. Keep bystanders away from the machine and hose area if electrical contact is suspected, and activate emergency response. Follow the established electrical emergency plan rather than approaching to pull someone away. After any setup change, reconfirm the movement envelope before restarting. Everyone has a role in reporting a line conflict, while technical clearance and operating decisions remain with the responsible authorized personnel.
Discuss with the crew
The parked pump clears the wires, but the planned fold path crosses beneath them.
Question: Has setup planning been completed?
Answer guidance: No. The full deployment, operation, and folding envelope must be evaluated.
Question: Can a worker assume the hose is electrical insulation?
Answer guidance: No. Do not use equipment materials as an improvised electrical protective measure.
Prepare, act, and follow up
Leader preparation: Bring the site power-line information and approved pump position.
Put it into practice: Trace the boom movement envelope on the drawing and flag overhead conflicts.
Supervisor follow-up: Confirm line status and the approved controls with the responsible site personnel.
Official reference: OSHA: Electrical Work Practices
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333
Awareness briefing. Apply current site procedures and applicable requirements. This talk does not replace required qualification, practical training, exposure assessment, medical evaluation, or a written program.
Suggested session: 5-7 minutes, including discussion and activity. Prepared October 18, 2026; recheck current requirements before use.
Show the crew
Trace the boom movement envelope on the drawing and flag overhead conflicts.
Ask the crew
Has setup planning been completed?
Can a worker assume the hose is electrical insulation?
OSHA references
29 CFR 1910.333
Sign-In Sheet — Pump Booms and Power Lines: Plan the Entire Movement Envelope