Lockout/tagout

How it is used

Every person working on the machine puts their own lock on the isolation point and keeps the key. Energy means not only electricity but also hydraulic, pneumatic, stored and gravitational energy. Skipping lockout/tagout is a common cause of serious injuries.

Example sentences

1. Nobody puts their hands inside the press without lockout/tagout, even for a quick fix.

2. Each maintenance technician carries a lockout/tagout kit with personal locks and tags.

Common collocations

• lockout/tagout procedure
• apply lockout/tagout
• LOTO lock
• isolation point
• zero energy state

Related terms

• hazardAnything that could cause harm, injury or ill health, such as moving machine parts, chemicals, noise, electricity or a wet floor.
• risk assessmentA careful review of a task or area to find the hazards, judge how likely and how serious harm would be, and decide what controls are needed.
• machine guardingPhysical barriers and safety devices, such as fixed covers, interlocked doors and light curtains, that keep people away from the dangerous moving parts of machines.
• emergency stopA large red button or switch, usually on a yellow background, that stops a machine as quickly as possible in a dangerous situation. Shortened to E-stop.
• preventive maintenancePlanned maintenance done at regular intervals, such as cleaning, lubricating and replacing worn parts, to stop breakdowns before they happen. Often shortened to PM.

This word in other fields

The same English word can have a different meaning in another field:

• lockout/tagout · Robotics & Automation
• lockout/tagout · Electrical & Electronics Engineering
• lockout/tagout · Chemical Engineering
• lockout/tagout · Oil, Gas & Mining

More terms: Plant Safety

• PPE
• near miss
• safety data sheet