METHOD STATEMENT CABLE TRAYS

METHOD STATEMENT CABLE TRAYS

TABLE OF CONTENTS

  1. Scope / Objective
  • Reference
  • Access / Egress
  • Health and Safety Hazards
  1. Safety Lighting
    1. Task Lighting
    1. Emergency Arrangements
      1. General
      1. Fire Precautions
      1. Communication
    1. Risks Control
  2. Hazards / Risks
  3. Control Measures / Permits
  4. 3rd Party Protection
  5. Environmental Considerations
  6. Definitions
  • Responsibilities / Supervision
  • Procedures / Method to be Employed
  • Training
  • Working Hours
  1. House Keeping
  1. Manpower Requirement & Supervision
  1. Material Requirement
  1. Plant & Equipment
    1. General
    1. Plant and Equipment Schedule
    1. Personnel Protective Equipment
    1. Power
    1. Working Platforms
  1. Q.C. Approvals and other Documentation
  1. Supporting Documentation
  1. Distribution
  1. Other Information
  1. Site Safety Engineers Approval
  1. Attachment – Sketches
    1.0    Revision Status
 Revision NoDatePrepared ByReviewed ByArabtech Approved  Revision Description 
 05/10/04    S.Georgiou   C.Ctorides  G.GeorghiouM.Pickup  
 16/07/04    S.Georgiou   C.Ctorides  G.GeorghiouM.Pickup  
 226/09/04    S.Georgiou   C.Ctorides  G.GeorghiouM.Pickup  
 327/10/04    S.Georgiou   C.Ctorides  G.GeorghiouM.Pickup  
 416/11/04    S.Georgiou   C.Ctorides  G.GeorghiouM.Pickup  
        
     Note:        

1.0     SCOPE / OBJECTIVES

This Method Statement covers the installation of Cable Trays. This procedure is to define the method used to ensure that Cable Trays have been installed as per the contract requirement.

  • REFERENCES
  •   Particular Cable Tray / Ladders specification

  Section 1105/SP/E-16112

  Shop drawings ref no: 1505/A&P/SD/AN

  • ACCESS / EGRESS

Work will be carried out only when all associated works of main contractor been verified that they have been completed.

4.0       HEALTH AND SAFETY HAZARDS.

Health and Safety procedure by Main Contractor and by A&P will be implemented for this job. The responsible safety officer as per A&P procedure will do a routine safety inspection.

  1. Safety Lighting.

Safety lights will be used in case of power failure ensuring the good illumination of the working area to aid evacuation if necessary. To be provided by A&P.

  1. Task Lighting.

Adequate lighting will be provided ensuring the good illumination of the working area. The task lighting will get power supply from the nearest power socket (provided by main contractor) which should be protected by relevant RCD.

  1. Emergency Arrangements.
  • General: Site general safety procedures will be followed. In case of emergency the safety officer / foreman will stop the work, he will administer the emergency arrangements and he will report to assembly points as described during the Site Induction Course.
  • Fire Precautions: No significant fire risks associated with this activity but general fire precaution measures will be taken as per Arabtec instructions to A&P.
  • Communication: Communication from site areas to Site Office via mobile phones issued to senior foremen. In emergency situations the users of handheld 2-way radios to be notified if deemed that this can speed up notification of relevant personnel and/or the JBR01 Site Clinic.
  1. Risk and Controls.
  • Relevant Risk Assessments (see Section 19 Attachments):
  • WAH-001 Ladders and Step Ladders
  • MAT-004 Disposal: Waste Materials
  • PRT-006 Disc Cutters/Abrasive Wheels
  • PRT-007 Hand Tools
  • PRT-010 Portable Electronic Equipment
  • 3rd Party Protection: Applicable as per the contract only
  • Environmental Considerations: After the finalization of the works the working area should be cleared of any scrap materials in a daily basis related to the performed work.

5.0       DEFINITIONS

              ATC  –           Arabtec Construction (LLC.)

              A&P –           A&P Paraskevaides and Partners LLC.

              M.S. –            Method Statements.

              I.T.P.-            Inspection and Test Plan

6.0     RESPONSIBILITIES / SUPERVISION

  • Project Manager – will have the overall responsibility of the Project for execution, quality and safety. Also he will maintain the planning progress and coordination of works with main contractor.
  • Project Senior Electrical Engineer / Site Electrical Engineer – will be responsible for the day to day activities on site, for materials, drawings, testing & commissioning. The Project Senior Electrical Engineer will report to the Project Manager.
  • Supervisor – will be directly responsible for the day-to-day job on site, for handling the technicians or any other staff assign to his area.
  • Safety Officer – will be responsible for the Health and Safety aspects on site as per the Mains Contractor and A&P Safety requirements.
  • QA/QC Department – will be oversee all quality requirements and quality control measures for the Project in coordination with the Senior Electrical Engineer as outlined in the A&P QA Manual.
  • PROCEDURES / METHOD TO BE EMPLOYED.
  • Co-ordinate routes and heights of cable trays with mechanical/other services and prepare and submit shop drawings for approval.
  • Prepare and submit required materials for approval as per section 1105/SP/E-16112 of specification.
  • Procure and deliver approved materials.
  • Offer materials for inspection to ATC/HYDER. Proceed if approved.
  • Determine where the trays will be installed.
  • Layout routes of trays and mark locations of supports. Distance between supports should be not more than 1500mm between them.
  • Install threaded rods on concrete slabs and wall brackets on walls. (Distance as mentioned in item 7.6)  
  • Fix approved U channel, on the threaded rods or wall brackets.
  • Install cable trays on the supports using correct fittings as required.  Cable trays crossing structure expansion joints shall be provided with expansion connectors.
  • Paint sawn off edges with cold galvanized paint.
  • Fasten cable trays to the supports using approved bolts with dome head nuts and/or other accessories.
  • Adjust supports as necessary to obtain proper tray installation.
  • Install earth continuity links along the completed cable tray run.  Both ends at each cable tray run should be grounded.
  • Field test cable tray continuity to ground.  
  • Inspection of installed cable trays by consultant prior laying of cables.
  • All cable trays should be color coded at regular intervals clearly identifying the system for which they have been installed for. The color codes should be subject for approval at the mock up.
  • TRAINING

8.1       Tradesmen who will be used to perform the described work will be experienced electricians. If deemed necessary specific teams / individuals will undergo further training by the Production / Quality Assistance Departments.

  • Toolbox talks will provide general training and awareness for each activity as well as in Health & Safety matters and precautions.
  • WORKING HOURS

Normal working hours: 7.00 a.m to 5.00 pm

  1. HOUSE KEEPING

A&P personnel will clear work areas of scrap materials derived from their work on a daily basis ensuring a clean and healthy work environment and also to maintained free access and egress in the event of an emergency.

  1. MANPOWER REQUIREMENT & SUPERVISION

Marking and installation of raw-bolts and threaded rods requires minimum two tradesmen.

Installing the cable tray requires minimum two tradesmen.

  1. MATERIAL REQUIRMENT

Material requirement for this activity are: Cable tray, raw-bolts, threaded rods, angle Iron.

  1. PLANT & EQUIPMENT REQUIREMENTS
  1. General: Drills, Grinders, Files, Screwdrivers, pliers.
  2. Plant and equipment schedule: Ditto
  3. Personnel Protective equipment:  All personnel should wear at all time safety shoes, helmet and coverall, protective glasses and gloves.
  4. Power: Single-phase normal power where it is needed.
  5. Working Platforms: Scaffolding as required within the specific work area.
  1. Q.C. APPROVAL AND OTHER DOCUMENTATION
  1. SUPPORTING DOCUMENTATION

Particular Cable Tray / Ladders specification

  Section 1105/SP/E-16112

Shop drawings ref no: 1505/A&P/SD/AN

  1. DISTRIBUTION
  • Main contractor,
    • Senior Electrical Engineer
    • Q.C. Engineer
    • Site Electrical Engineer
    • Tower Health & Safety Officer
  1. OTHER INFORMATION

Not applicable

  1. SITE SAFETY ENGINEER’S APPROVAL

Risk Mitigation measures as identified in the Risk Assessments in Section 19 to be inspected at regular intervals for Activity duration as identified in the Health & Safety Manual.

  1. ATTACHMENTS
  • WAH-001 Ladders and Step Ladders
  • MAT-004 Disposal: Waste Materials
  • PRT-006 Disc Cutters/Abrasive Wheels
  • PRT-007 Hand Tools
  • PRT-010 Portable Electronic Equipment
Md Abu Zaed Khan
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