Commissioning and startup (CSU) is one of the most complex and risky stages in the construction of industrial facilities. During this period, builders, installers, and equipment adjustment specialists work simultaneously on the same site. Such an overlap of tasks creates new threats for which personnel are often unprepared. In his presentation, Damir Talipov, Head of the HSE Department at RENERA-Enertek, analyzes the concept of SIMOPS (Simultaneous Operations) and shares practical experience in safety management during the pre-commissioning and commissioning stages.
The speaker notes that by the time systems and subsystems testing begins, a number of specific problems arise:
To minimize risks during simultaneous operations, the speaker proposes a structured approach consisting of several stages:
It is necessary to identify all overlapping operations. If they cannot be separated in time, it should be ensured that construction and installation works are completed in accordance with the design and documented. It is important to ensure the phased transfer of zones and systems for commissioning, develop memos on working environments, and approve a notification matrix.
Detailed inspection of each unit and design point with the participation of construction supervision and independent organizations. The use of checklists allows for an objective assessment of the equipment's readiness status for the start of commissioning and prevents emergencies.
Transition from construction safety signs to operational ones. Placement of memos with information about risks and safety measures when working with specific environments (gas, chemicals). The speaker emphasizes the importance of advance notification (48 hours prior) of all project participants about upcoming tests, indicating the location, time, type of work, and responsible persons.
To protect personnel not involved in commissioning, fencing of hazardous areas, shielding, and the Lockout-Tagout (LOTO) system are used. In some cases, it is advisable to create special SIMOPS zones with access control (ACS). Equipment lockout (e.g., valves on gas pipelines or electrical rooms) is usually the responsibility of the customer.