Precommissioning Check List

Pre-commissioning checks and tests are performed during and after construction. The pre-commissioning check list given below is generic in nature and may have to be adapted to suit the project scope of work.

ACTIVITY DESCRIPTION	Yes	No	Comments

ELECTRICAL
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules, and specifications.
Perform preliminary tests with equipment de-energised, including:
- Insulation resistance measurements
- Di-electrical strength tests
- Loops and circuits continuity tests
- Earthing resistance measurements
Carry out breakdown test of oil samples, and fill transformers with oil and
Fill batteries with electrolyte.

INSTRUMENTATION
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Remove in-line instruments before hydraulic tests.
Carry out preliminary cleaning of hydraulic tubing lines and check the cleanliness conformity.
Air Sub-header flushing
Perform required pressure tests on:
- Instrument take-off piping
- Air piping
- Air tubing
- Hydraulic tubing
Reinstall instruments after pressure tests and flushing of the process lines.
Calibrate all instruments other than F & G detectors prior to installation
Check continuity of transmission and identification of indication, control and alarm signals.
- Perform continuity and insulation tests for instrument cables.
- Perform continuity and tightness tests for pneumatic tubing.
Install sealing fluids where required
Checking of the earthing network

PIPING
Check quality of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety rules, specifications (painting and insulation needed). Verify especially gaskets and bolt types.
Produce NDT clearance (Contractor QC activity)
Carry out water or air flushing operations of piping.
Carry out preliminary cleaning and hydrostatic testing of pipes.
Remove all temporary supports, protections, bracing, and sea fastening stops, which were installed to prevent equipment damage during shipping, storage and erection.
Alleviate any excess piping stresses that may be imposed on pipes, compressors or pump flanges.
Provide and install all strainers, both temporary and permanent, spectacle blinds and temporary blanks.
Check packing and packing materials and lubrication of valves; repack and lubricate if necessary.
Supply and install line identification tags and signs, stencil lines for identification.
Set or check pipe anchors, guides, spring hangers and supports after hydrotest. Provide cold and hot setting data.
Install safety valves or temporary spool pieces during construction.
Remove as necessary and transport all safety valves to and from test facilities.
Test, set and tag all safety valves, then carry out safety valves final installation.
Supply car seals or locking devices for block valves and safety equipment.
Carryout leak test of shutdown valves.

VESSELS
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Clean all vessels internally.
Carry out vessels final inspection.
Properly close up all vessel internal manways and openings after final inspection or after loading of chemicals, catalysts, etc. is completed.

TANKAGE
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Install appurtenances.
Clean inside tank.
Carry out tank final inspection.
Close manways

PUMPS
Check condition of equipment, quality of installation, and compliance with project drawings, manufacturer instructions, safety rules specifications.
Set and cold align pumps and drivers
Couple pumps to drivers
Install temporary strainers
Check that piston seal packaging followers, if any are correctly tightened.
If discharge flow dampers are fitted (normally nitrogen filled bladder type) check these are correctly charged and installed.

COMPRESSORS
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Install all piping and make piping corrections as required by manufacturer's tolerances. Set and cold align units.

DIESEL ENGINES
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Set and cold align units
Clean lube oil piping
Fill lube oil system

LIFTING EQUIPMENT
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety rules, specifications

HVAC EQUIPMENT
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Check alignment of motors/ fans and drivers.
Check that tensions on drivers are correct.
Check that fans and motors rotate manually and run freely.
Check that anti-vibration mountings are correctly installed.
Check that sealing compound of fire dampers is installed correctly
Check that linkage and blades of dampers operate correctly and freely.
Check that airflow direction in pre heaters is correct.

LIFE SAVING EQUIPMENT, LIFEBOATS AND LIFERAFTS
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturer instructions, safety rules specifications.
Check especially that lifeboat, Liferaft, Life Buoys, and Lifejacket certification and shop testing conform and agree to offshore regulations and are acceptable to the applicable legislation.
Check that all lifeboat and Liferaft survival equipment has been installed i.e. radio, tools, spare parts, lamp, and emergency radio beacon.
Check that all lifeboat and Liferaft instructions for use are clearly marked.
Check that all Liferaft painter line is attached to a strong part of the installation and has an adequate length.
Check launching apparatus.
Check that the lifeboat security belt has been installed and hammer is ready to use (if using this system).
Check Life Buoys storage locations.
Check Life Jackets storage locations within individual cabins and on decks and that they are clearly marked.
Check that all Escape Routes signs are clearly marked to indicate escape ways and muster points (such as arrows, numbers, display boards and routes).
Check that escape ways are safe and secure.

ALL FIRE FIGHTING EQUIPMENT
Check storage locations of all extinguishers
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety rules, specifications

TELEPHONES
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety rules, specifications
Check especially that EX equipment has been installed in classified areas

PUBLIC ADDRESS
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety rules, specifications

BUILDINGS
Check condition of equipment, quality of installation, and compliance with Project drawings, manufacturers instructions, safety, rules, specifications

DRAWINGS & DOCUMENTATION
Compile Pre-Commissioning Dossiers
Red line Mark up on relevant Discipline Key Drawings
Red line Mark up on relevant Vendor's Drawings