02 IMPORTANT SAFETY INFORMATION
3BHS213401 E01 REV H ACS1000 AIR-COOLED USER MANUAL 20/184
2.6 The 7 steps that save lives
ABB’s 7 steps that save lives concept is a series of actions that must take place prior to
commencing work on or near electrical installations. Everyone in the working party must be
fully engaged in this process to place electrical installations in a safe working condition and is
empowered to speak out if there are any deviations in this process and refuse to proceed until
these steps are carried out in their entirety.
1
Prepare for the work: do an on-site risk assessment or job
hazard analysis that considers the limits of approach for
shock and arc-flash.
- Be in possession of a clear work order to execute the work.
- When required, the access or work permit is to be obtained by a person
who is authorized for the specific electrical system.
- Engage the person responsible for electrical equipment or system to
review single-line diagrams, schematics, switching plans, etc.
- Ensure the competence of workers.
- Check for proper tools for the job.
- Determine and select the proper arc-rated Personal Protective
Equipment (PPE).
- Decide of the appropriate work methods and initiate the
- Permit To Work (PTW) process.
2
Clearly identify the work location and equipment.
- Use your senses (sight, hearing and smell) to identify problem areas.
- Define the work area via barriers and barricading and label equipment.
- Avoid distractions such as talking or texting on the phone.
3a
Disconnect all sources of supply.
- If ABB is responsible for switching and it cannot be done remotely, then
the person performing the switching must be properly trained and
wearing the proper PPE identified in step 1.
- The Person in Charge of Work (PICW) must ensure that switching is
performed in the proper manner by witnessing it from a safe distance if
present on site or by engaging the person responsible for switching to
identify all isolation points.
3b
Secure against reconnection by applying Lockout/Tagout.
- Apply Lockout/Tagout (LOTO) to the energy isolation device and if
multiple energy isolation devices are involved, then Group LOTO must
be implemented with the PICW serving as the Group LOTO Leader.
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