METHOD STATEMENT FOR CABLE / WIRE INSTALLATION
Electrical Wiring
TABLE OF CONTENTS
1. PURPOSE
2. SCOPE
3. REFERENCES
4. RESPONSIBILITIES
5. MAJOR PLANT & EQUIPMENT
6. MATERIAL HANDLING
7. CONSTRUCTION METHODOLOGY
8. EQUIPMENT AND TOOLS
9. PARTICULAR SAFETY PRECAUTIONS
10. ATTACHMENT
10.1 QUALITY RECORD No. 00005 – CABLE INSTALLATION
10.2 TEST RECORD No. 0005 – CABLE TEST RECORD
1.0 PURPOSE
1.1 To ensure the cable/wire is installed according to project Specification and Code and is ready for testing and energization.
2.0 SCOPE
2.1 This procedure shall apply to the installation of cable/wire in conduits, cable tray/ladder/trunking and raceways.
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3.0 REFERENCES
3.1 Company Site Safety Plan
3.2 Project Manuals – Project Specifications
3.3 IEC – International Electro technical Commission
3.4 Company – Quality Control Work Procedure
3.5 Company – Electrical Work Procedure
3.6 Company Project Quality Plan
3.7 Approved Installation drawings (As applicable)
3.8 Approved Material Submittal (As applicable)
4.0 RESPONSIBILITIES
4.1 Project Manager / Director
4.1.1 Shall be responsible for the overall construction activities.
4.2 Construction Manager
4.2.1 Shall be responsible for the overall implementation of this Method Statement; liaison/co-ordination with the Supervisor, Foreman and craftsmen to ensure efficient execution of works in accordance with the specification requirements.
4.3 Material Controller
4.3.1 Shall be responsible for receiving materials on site warehouse. He will check the materials for any damages during shipping, handling and storage.
4.3 Supervisor / General Foreman
4.3.1 Implementation of safe work method statement and risk assessment plan.
4.3.2 Arrange TBT prior to commencement of work.
4.3.3 Visit the area of work for no hazard items exist.
4.3.4 Organizing the site and work places so as to ensure that work is carried out to the required standard, with minimum risk to men, equipment and materials.
4.3.5 Ensure that the employees under his responsibility do not engage in unsafe work practices or take unnecessary risks.
4.4 Safety Officer
4.4.1 Enforce the Project HSE rules and regulation.
4.4.2 Implement HSE requirements as set out in Company HSE Plan
4.4.3 Ensure work permit has been obtained and implemented if applicable.
4.5 Tradesmen / Drivers / Operators / Welders
4.5.1 Follow Supervisor’s / General Foreman’s instructions.
4.5.2 Only authorized drivers / operators can operate the plants.
4.5.3 Only EDD Authorized Technician can work on Termination /Splicing / Testing & Commissioning of MV/HV Cable /Wire.
5.0 MAJOR PLANT & EQUIPMENT
5.1 All equipment/tools shall be inspected prior to use at site and Company ID tag shall be placed on equipment where applicable.
5.2 No modified tools may be used for any task.
5.3 All test equipment shall be checked to assure that they are in good condition and valid calibration certificates are maintained and available for review.
5.4 Operator’s documentation shall be verified as applicable.
6.0 MATERIAL HANDLING
6.1 All materials shall be submitted for approval prior to procurement and delivery to site.
6.2 Materials shall be inspected on delivery to site, to ensure compliance with the approved submittal. An Over, Shortage & Damage report shall be completed for all deliveries.
6.3 Materials shall be unloaded in a proper manner, by manual or as necessary, mechanical means, crane or forklift. Materials shall not be dropped to the ground, but lowered carefully.
6.4 Materials will then be reconciled with the mill certificates, where applicable and any uncertified /non-compliant materials will be removed into quarantine.
6.5 Material shall be stored appropriately or placed on shelving within the warehouse area.
6.6 All materials shall be stored on shelves within the warehouse and shall be segregated according to size and type.
6.8 Care shall be taken to prevent the ingress of dirt or foreign objects into materials.
6.9 Insulation materials shall be stored in the manufacturers packing to ensure it is maintained in a clean dry condition.
6.10 Items requiring preservation and maintenance shall be subject to the requirements of the Preservation and Preventative Maintenance Procedure.
6.11 Manufacturer’s instructions with regard to storage requirements shall form the basis for material storage and preservation.
7.0 CONSTRUCTION METHODOLOGY
7.1 QUALITY CONTROL:
7.1.1 The Quality Department shall ensure the installation of the Cable / Wireis conducted in accordance with the approved Inspection and Test Plan, Project Specification and Code, Shop Drawings and Purchase Order.
7.1.2 The QC Inspector shall conduct the inspection of the installation of the cable/wire using the Quality Checklist (QR) and the relevant Project Specification and Code.
7.1.3 The Inspector shall record any deficiencies noted during his surveillance activities or inspections in Inspection/Walkdown/Punchlist (IWP).
7.1.4 The QC Inspector shall ensure the installation of all cable/wire in accordance with Shop Drawings, Cable Scheduled, Project Specification and Code.
7.1.5 The QC Inspector shall ensure all cable/wire installed is correct type, size and rating as per Project Specification and Code.
7.1.6 The QC Inspector shall ensure all cable pulled had been sealed the cable cut end to prevent ingress of moisture and impurities and shall be tag at both ends.
7.1.7 Following the installation of cable/wire and prior to termination, the cable shall be subjected to an insulation resistance test. Low voltage cables (600 and below) including splices to existing shall be 500 Volts DC megger tested after installation and prior to placing to service. Medium voltage cables (5kV and above) shall be megger tested and be subjected to high potential test. Test shall be performed in accordance with IEC 60502 –1 & 2.
7.2 CONSTRUCTION ACTIVITIES
7.2.1 The Construction Manager shall ensure the construction department implements the necessary controls to ensure the installation of the cable/wire is in accordance with the Project Specification and Code.
7.2.2 The Construction Supervisor shall issue the Request for Inspection (RFI) to the Quality Department as per the Inspection points in the applicable Inspection and Test Plan.
7.2.3 The Construction Supervisor shall complete the Quality Check Sheet (QR) and issue to the Quality Department with the RFI
7.2.4 The Construction Supervisor shall ensure during the installation of the cables that adequate cable rollers are (where applicable) installed along the cable route.
7.2.5 The Cables drums shall be set up to ensure the minimum cable handling is required.
7.2.6 The cable shall be pulled from the drum as shown with the direction arrows.
7.2.7 Cable testing shall be carried out as per Company Testing Procedures.
8.0 EQUIPMENT & TOOLS
8.1 Hand Tools
8.2 Pulling Spring
9.0 PARTICULAR SAFETY PRECAUTIONS
The contents of this method statement shall form the basis of a toolbox talk for all operatives before the commencement of such works.
9.1 RISK ASSESSMENT
– Danger of hand or other injuries from cutting tools and sharp edge
– Danger of falls from heights.
– Falls, knocks or trips due to poorly lit areas within the structure.
– Danger of eye damage during cutting or grinding.
– Electrocution when using electric hand tools and extension leads.
– Danger of injury when lifting large duct sections.
9.2 RISK MANAGEMENT
9.2.1 Only trained operatives shall use such cutting tools as required to carry out the works. All operatives, skilled and unskilled shall be provided with gloves for hand protection.
9.2.2 All operatives shall be provided with full body safety harnesses when working at heights above two (2) meters as set out in this method statement.
9.2.3 Main contractor shall provide temporary lighting as required in areas subject to poor lighting.
9.2.4 When cutting or grinding all operatives shall wear a full face visor. All other operatives in the general area of such work shall be made aware and avoid such areas.
9.2.5 All hand tools and extension leads shall be inspected before use to ensure they are in good working order, with no damaged or exposed elements. Leads shall be checked along their full length and plugs and sockets shall be of the correct type and rating.
9.2.6 Where scaffolding is required to be installed for the lightning/earthing installation, a Green Tag shall be attached to the scaffolding to identify that the scaffolding has been inspected and can be used for construction purposes.
10.0 ATTACHMENT
10.1 Quality Record No. 00005 – Cable Installation
10.2 Test Record No. 0005 – Cable Test Record)
