METHOD STATEMENT FOR INSTALLATION OF SPRINKLER SYSTEM

TABLE OF CONTENTS

1. Scope / Objective

• Reference

• Access / Egress

• Health and Safety Hazards
  • Safety Lighting
  • Task Lighting
  • Emergency Arrangements
    • General
    • Fire Precautions
    • Communication
  • Risks Control
• Hazards / Risks
• Control Measures / Permits
• 3^rd Party Protection
• Environmental Considerations

• 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 – Risk assessment forms

1.0     SCOPE / OBJECTIVES

This Method Statement covers the installation of Sprinkler System. This procedure is to define the method used to ensure that the Sprinkler System installation has been carried out as per as contract requirements.

• REFERENCES

Contract document:           1105/SP/M-15100 Basic Materials and Methods

1105/SP/M-15510   Fire Protection Piping and                                            Accessories

Standards:                        NFPA 13       Standard on Sprinkler Installation

Drawing and Standard Sprinkler Installation Details should provide enough details for this installation. In the absence of any information the above documents should be consulted in the order shown.

• ACCESS / EGRESS

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

4.0     HEALTH AND SAFETY HAZARDS.

Implementation of Health & Safety mechanisms and checks as per Contract Agreement and the approved A&P Health & Safety Manual. The responsible Safety Officer for each building will conduct routine safety inspections.

1. Safety Lighting.

     Safety lights will be used in case of power failure ensuring the good illumination of the working area for safe evacuation of the site.

• Task Lighting.

Adequate lighting will be provided ensuring the good illumination of the working area. Task lighting will be connected to the nearest site distribution board which is RCD protected.

• Emergency Arrangements.

• General: Site general safety procedures will be followed. In case of emergency the Safety Officer will stop the work, he will put into action the emergency arrangements and report to assembly points as indicated during Site Induction Course.

• Fire Precautions: No significant fire risk associated with this activity but general fire prevention measures will be taken as per Arabtec instructions to A&P.

• Communication: Communication from work areas to Site Office via mobile phones issued to Senior foremen. In emergency situations the users of hand-held 2-way radios to be notified if deemed that this can speed up notification of relevant personnel and/or the JBR01 Site Clinic.

• Risk and Controls.

• Hazards / Risks

          Relevant Risk Assessments (See Section 19 Attachments):

                   1.     PRT – 006 Disc Cutters & Abrasive Wheels

                   2.     PRT – 007 Hand Tools

                   3.     WAH – 001 Ladders and Stepladders

                   4.     WAH – 002 Mobile Elevated Working Platforms

                   5.     WAH – 006 Working at Heights

                   6.     MAT – 004 Disposal of Waste Materials

• 3^rd Party Protection: Applicable as per the contract only

• Environmental Considerations: After the finalization of the works the working area should be cleaned from any scrap materials related to the performed work.

5.0     DEFINITIONS

                       As to specifications (see References).

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 Mechanical Engineer / Site Mechanical Engineer – will be responsible for the day to day activities on site, for materials, drawings, testing & commissioning and allocation of Departmental resources to work areas on Site. The Project Senior Mechanical 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.

• QA/QC Department – will be overseeing all the quality requirements and quality control measures for the Project in coordination with the Senior Mechanical Engineer as outlined in the A&P QA Manual.

• Safety Officer – will be responsible for the Health and Safety aspects on site as per the Mains Contractor and A&P Safety requirements.

• PROCEDURES / METHOD TO BE EMPLOYED.

• Pre – Ordering:

Drawings must be prepared and approved.

• Ordering:

Follow standard Unisafe procedures for ordering of Sprinklers, Pipes & Fittings.

• Factory manufacture.

As per Supplier/Manufacturer

• Transportation to site:

By supplier.

• Material and Type of Joints (Pipe Work):

7.5.1   Pipes as per ASTM A 53 GR.B Sch.40 – Galvanised ERW.

7.5.2   Fittings Up to 50mm – Threaded End.

7.5.2   Fittings 65 mm and Above – Grooved End.

7.3     Method

7.3.1   Preparation of Work

Before commencing the installation of the fire fighting system the following shall be carried out.

7.3.2   On receipt of pipes & fittings, storage shall be arranged at site as per manufacturer’s recommendations so as to prevent any physical damage to the material.

7.3.3   Check approved materials are available for installation.

7.3.4Check for “Issued for Construction” drawings are used for installation.

7.3.5   Check work area is clean and safe for work.

7.3.6   Ensure installation work is under taken only by trained and experienced personnel.

7.4     Installation

7.4.1   Installation of Distribution Pipe works – First Fix

.2    Determine the position of the pipe supports and mark out on the concrete surface.

.3    Drill holes in the concrete using portable electric drilling machine ensuring correct drill bit size is used.

.4    Fix supports in position using anchor bolts and ensure all fixing are tight and secure.

.5    Place pipes in position, if required using lifting hoists / straps and chain blocks

.6    Assemble the pipes using screwed fittings / bolting the flanges of pipes / grooved couplings.

.7    Ensure appropriate sealing compound/gaskets/lubricant are used for assembling of the pipes.

.8    After installation of the pipe works, check for correct leveling, position and alignment.

.9    Install temporary cap to any open ends of pipes before leaving the work place everyday.

7.5     Installation of Valves and Accessories– Second Fix

• Install system alarm valves, trim connections and accessories according to the approved shop drawing.

• Ensure that the system equipment, valve and accessories are securely and rigidly mounted by anchor bolts on the civil base constructed for the purpose.

• Local Alarm Control Panel and Interface cabling

• The pressure switch and limit switch of the control valves shall be connected to the local alarm control panel located in the technical room of each area.

• Cabling inside the technical room to be surface run

• All Cables to the terminated and checked for continuity/insulation resistance.

•   Pressure Testing of the Pipe works

• The complete piping of the system including the header and distribution pipe works shall be hydrostatically tested for line gradient and water tightness at 200 PSI for 2 hrs. in accordance with contract specifications 15510 and NFPA 13 clause with no permissible leakage.

• Flushing of the Pipe works

• After pressure testing of the pipe works, the complete piping shall be flushed clean by potable water.

• The flushing water flow shall be maintained as long as the water coming out of the pipe is not clear and devoid of any solid matter.

• Installation of Sprinklers

• After leak testing and flushing of the piping, the     sprinkles/discharge spray nozzles shall be installed in accordance with contract specification 1105/SP/M-15510.

• Ensure correct sprinklers / discharge spray nozzles are fitted at specified locations as per the layout drawing.

7.10    Final Painting and Identification

7.10.1  Paint touch-up of the system pipe works/supports shall be   carried out at places where paint damages have occurred using approved paint system.

7.10.2  Identification labels shall be provided as appropriate

7.11    Inspection

7.11.1  Inspection requests shall be raised for client for inspection at various stages.

7.11.2  Inspection shall be carried out as per the relevant check sheet (Ref: M-3.3.04.CS01)

          8.0     TRAINING

8.1  Tradesmen performing the described work will be experienced pipe fitters. If deemed necessary specific team / individuals will undergo further training and awareness programs for this activity by the Production / Quality Assistance Departments.

• Toolbox talks will provide general training and awareness for each activity and also in Health & Safety matters and precautions.

          9.0     WORKING HOURS

Normal working hours: 7.00 a.m to 5.00 pm

          10.0    HOUSE KEEPING

          In all work places where A&P personnel are working will be cleaned from the scrap materials derived from their work ensuring clean and healthy work environment as well as to maintain free access and egress in the event of emergency.

11.0    MANPOWER REQUIREMENT & SUPERVISION

Manpower requirement & supervision depends upon the planning organization chart and site progress of works.

12.0    MATERIAL REQUIREMENT

1.    Pipe threading machine.

2.    Electric drill machine

3.    Chain blocks.

4.    Nylon straps/shackles.

5.    Mobile Scaffold / temporary / high / low scaffolding and stepladders.

6.    Hand tools

7.    Sprinkler Pipes and Fittings

13.0    PLANT & EQUIPMENT REQUIREMENTS

1.      Pipe Fitter’s Tool box

2.      Helper’s Tool box

Personnel Protective equipment:  All personnel should wear at all time safety shoes, helmet and coverall.

1.    Working Platforms: Scaffolding as required within the specific work area.

14.0    Q. C.  APPROVAL AND OTHER DOCUMENTATION

15.0     SUPPORTING DOCUMENTATION

Shop drawings.

16.     DISTRIBUTION

• Main contractor,
  • Senior Mechanical Engineer
  • Q.C. Engineer
  • Site Mechanical Engineer
  • Tower Health & Safety Officer

17.0     OTHER INFORMATION

No applicable

18.0     SITE SAFETY ENGINEER’S APPROVAL

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

19.0     ATTACHMENTS

Quality Control Checklists:

                 Sprinkler piping Installation Quality Control Checklist

                 Sprinkler heads Insulation Quality Control Checklist

       Risk Assessment Forms:

                 PRT – 006 Disc Cutters & Abrasive Wheels

                 PRT – 007 Hand Tools

                 WAH – 001 Ladders and Stepladders

                 WAH – 002 Mobile Elevated Working Platforms

                 WAH – 006 Working at Heights                     MAT – 004 Disposal of Waste Materials