Method Statement for Standpipes, Sprinkler Pipes and Accessories Installations

Method Statement for Stand Pipes, Sprinkler Pipes & Accessories Installations

Scope of Work

This Method Statement for Standpipes, Sprinkler Pipes, and Accessories defines the execution for installation in accordance with the relevant reference standards, project specifications, approved shop drawings, and health, safety & environment requirements.

The contractor shall ensure that the safe work systems resulting from the Risk Assessments are employed throughout the works described in this method statement.

The Construction Manager and Safety Manager both have the responsibility for ensuring that the method statement procedures are adhered to and are verified using the Site Activity Day Diary Sheets (SADD)’s.

Definitions and Abbreviations Used

The following definitions and abbreviations are used in this Method Statement for Standpipes, Sprinkler Pipes, and Accessories:
AC Alternating Current
CDM Construction Design Management
CP Competent Person
GI Galvanized Iron
GSAS Global Sustainability Assessment System
HSE Health Safety and Environment
ID Identification Details
IFC Issued For Construction
I/O Input/output
ITP Inspection and Test Plan
LED Light Emitting Diode
MCP Manual Call Point
MEP Mechanical Electrical Plumbing
MS Method Statements
MIR Material Inspection Request
NCR Non-Compliance Report
NFPA National Fire Protection Association
PE Project Engineer
PPE Personal Protective Equipment
QC Quality Control
RA Risk Assessment
RAMS Reliability Availability Maintainability
SADDS Site Activity Day Diary Sheets

Reference Documents

Standard NFPA 13 2016 Edition – Standard for the installation of sprinkler systems
Standard NFPA 14 2016 Edition – Standard for the Installation of Standpipe and Hose Systems Standard for the Inspection, Testing
Standard NFPA 25 2017 Edition – Maintenance of water-based fire protection system
Project Specifications – Fire Alarm and Detection Systems
Project Quality Plan

Health, Safety and Environment

All site operatives will be required to undergo site safety induction and suitable training prior to undertaking any site construction works. As a minimum, the following PPE will be provided in addition to that identified in the Risk Assessment:

a) Safety Glasses
b) Safety Helmet
c) Coverall
d) Safety Shoes
e) Hand Gloves
f) Brazing apron
g) High Visibility Vest
h) Safety Harness

Specific

The Health and Safety considerations included in the Method Statement for Standpipes, Sprinkler Pipes, and Accessories Installations:

  1. Issue approved Method Statement & Risk Assessment to supervisors operatives prior to the work commencement.
  2. Conduct daily task briefing and toolbox talks before starting work and record all participants by signing an attendance sheet and recording in SADD’s
  3. Obtain confirmation from Main Contractor that the designated construction areas have safe access and that all related safety precautions and safety warning measures have been implemented.
  4. Provision of shaded rest areas where practical on-site and welfare facilities.
  5. Provision of Drinking water, toilets, and washing in stations.
  6. Daily compliance of the working practices stated in the Method Statement for Standpipes, Sprinkler Pipes, and Accessories Installations will be managed by using the SADD inspections. Daily audits will be conducted by the Site Engineer and HSE Inspector throughout the duration of the works.
  7. Site-Specific Risk Assessment.

Environmental

The Environmental Threats Risks Issues and Concerns shall also be managed using the
SADD during the works: The main environmental issues include :

  1. Noise disturbance
  2. Waste management
  3. Lighting
  4. Dust Control

Quality

The Inspection and Test Plan for the installation of the standpipe, sprinkler pipe, and accessories summarizes the specific characteristics and objectives that are to be satisfied. The Site Construction Manager will be responsible to ensure stage-wise compliance for these operations, and the QA/QC Engineer will carry out quality control checks and report the inspection results. The ‘Review/ Witness/Hold Points’ are identified in the ITP.

Responsibilities for Method Statement for Standpipes, Sprinkler Pipes and Accessories Installations

Project Manager
Responsible for for providing adequate resources and ensuring that the project specifications and regulations are adhere to.

Sr. MEP Engineer
Oversee the entire MEP construction activities within the site and ensure that activities are carried out as per the contract drawings and documents and report same in SADD’s.

MEP Construction Engineer
Supervise the subcontractor to meet the desired quality of the activities and ensure that proper work and schedules are met.

Site Engineer
Supervise closely, the activities designated to them and ensure that all instructions and safety procedures are followed and strictly adhered to.

QA/QC Engineer
Conduct surveillance and inspection duties at various stages to ensure compliance to QA/QC Plan.

HSEManager
Provides advice and support in the application of this procedure and monitors the effectiveness of the relevant control documents.

HSE Officer/ Inspector
Ensure enforcement of safety procedures in accordance with the Main Contractor HSE Plan /Procedures & Project Specifications. Record any site NCR’s in SADD’s.

Material Transport, Handling & Site Storage

All materials will be delivered on-site by truck/trailer. Subcontractor will notice for any material delivery within 48 hrs. All incoming materials will be off-loaded by crane/boom truck on the dedicated area.
On receipt of standpipe and sprinklers and accessories, the materials shall be handled and stored in line with the following procedure:

a) Unloading from the truck

  • Pipes are to be checked on unloading. Possible damages must be reported on the delivery note.
  • When unloading with cranes/ Boom truck The lifting belts must be placed outside around the pallets and outside the base timber
  • Steer the pallets manually to prevent them from colliding with anything.
  • Do not move the pallets on the truck with the aid of levers or crowbars.
  • Do not allow the pipes to be impacted by any hard object (e.g. crane hook, chain, etc.).
  • All materials received at the site will be inspected by QA/QC Engineer to ensure that the materials are as per approved material submittals in terms of their make, model type, country of origin, and capacity. Primer and paint shall not be applied prior to the inspection.
  • Pipes will be stacked on a flat surface free from sharp projections, stones, or other objects likely to caused point loading or pipe deformation.
  • Pipe shall be stored in a place free of water, dust and adequately covered to avoid any kind of damages
  • The storage area shall be kept at the proper level, so that the stacked pipes may be uniformly supported throughout their length.
  • Materials received at site shall be inspected randomly and ensure that the materials are as per approved material submittals.
  • Pipes will not be dropped on hard surfaces and will not be dragged along the ground. Wherever possible the loading and unloading of pipes will be carried out manually by hand.
  • If mechanical lifting equipment is used, ensure no metallic slings, hooks or chains will be used in direct contact with the pipe. A rope or nylon belt sling will be preferred which will not damage or cut the pipe surface.
  • Pipe of different sizes or wall thickness will be stored separately or where this is not possible, those with larger diameters and/or thicker walls will be placed at the bottom of the stack.
  • The stacks will be protected from direct sunlight by covering with tarpaulin sheets.
  • All other items such as valves, fittings, gauges, etc. shall be kept on racks within site stores and shall be segregated based on size, model, type, etc. for easy retrieval.
  • All the pipe fittings will be stored in the boxes as supplied by the fittings manufacturer.
  • Any discrepancies, damage, and etc. found to the materials will be notified and reported to QA/QC Engineer and Project Engineer for further action.
  • Materials found not suitable for site use should be removed from the site immediately.
  • While unloading, shifting, and storage, it should be ensured that there are no damages.
  • Do not put the pallets down onto the hard ground with a bang.
  • Put the pallets down only on the ground that is sufficiently hard to prevent the base timber from sinking into it.
  • Leave sufficient space between individual pallets.
  • To avoid damage to the sealing elements, store individual pipes only on a wooden base.
  • Store fittings standing upright on their sockets.
  • Manufacturer’s recommendations for storage/ transportation of the documents, country of origin, delivery notes and test certificates, etc.
  • Raise MIR for client approval.

b) Workshop Station

  • A workshop must be established to allow cutting, threading, and grooving of pipes on the site for a slight adjustment.
  • The workshop station must equip with a fire extinguisher and fire blanket.
  • Adequate illumination must be provided with a proper barricade and signage.
  • Workshop equipment is composed of the grooving machine, threading machine, welding station, bench vise, working table, grinder, electric drill, and hand tools.

c) All documents will be available with the all materials & accessories. i.e. shipping.

Pre-site Work

Prior to the commencement of any installation works associated with the standpipe and sprinkler system. The MEP subcontractor will ensure that all site installation preconditions have been satisfied. These include a site inspection to verify that the site condition is considered suitable for work to commence and that the main contractor safety provisions have been provided and also completed by subcontractors safety provisions. E.g. Site Access Site Illumination etc.

Prior to installation the subcontractors shall ensure that:

  • All materials and documentation relevant to a particular section of works have been checked by the site/project engineer prior to the commencement of work ensuring that these are of the correct type as reviewed by the client.
  • Before commencement of any construction works, pre-inspections will be carried out on all materials prior to being withdrawn from the storage area i.e. quantity, physical damage, brand/make and tag.
  • Civil clearances shall be given by the main contractor prior of start MEP services installation.
  • Installation activities will only commence when all associated works by the civil discipline have been completed.
  • Works shall not proceed until an approved IFC stamped shop drawing or detail is issued.
  • Ensure that competent & trained electricians will do the installation to ensure the best quality of workmanship. Toolbox talk & training will be provided by Site Engineer as and when required. An electrician certificate will be provided before any works start at the site.
  • Safe Access to work areas shall be provided and shall be approved by the competent safety person prior to commencement of works if applicable.
  • Check the work area to be tidy and remove flammable materials if any. Ensure a safe environment.
  • The Site Engineer/Supervisor will also check that the tools and equipment available are in compliance to contract requirements.
  • Where the RA identifies high-risk works a permit to work must be obtained from the safety department and entered on SADD’s.
  • Before and during the installation works, the study of the shop drawings, manufacturer details& specifications must be done.
  • The subcontractor shall carry out a survey of the site related to the area of the installation works. This shall include a dimensional survey, recording the construction of the building, the detail, and nature of the existing obstruction, and future installations and maintenance, in order to fully coordinate the work to be done.

Tools and Equipment

The following tools and equipment items have been identified for the installation of fire alarm and detection system :

  1. Hand Tools Box ( spanner set, cutting pliers, tube cutter, screwdriver set, hammer, hacksaw frame & flat file, cleaning brush, spirit levels)
  2. Measuring tape, and suitable materials for marking
  3. A-type ladder
  4. Mobile type scaffolding with wheel safety lock
  5. Threading and grooving machine.
  6. Pipe cutter.
  7. Electric drilling/ hammering/ grinding machines
  8. Scissor lift, man lift and etc.
  9. Clean cloth
  10. Chalk line reel with powder
  11. Boom truck
  12. Scissor lift with sky rack
  13. Manual pipe lifter

Installation of Standpipes, Sprinkler Pipes and Accessories

1. Grooving and Threading of Pipes
1.1 Grooving of Pipes

  • Before grooving the pipe, make sure the setting of the groove machine is being followed properly. Connect the tool to an internally grounded electrical source. When roll grooving pipe that exceeds the maximum length, a roller-type pipe stand must be used.
  • The roller stand must be capable of handling the weight of the pipe while allowing the pipe to rotate freely.
  • Place the Pipe Stand at a distance slightly beyond half the pipe length from the tool. Make sure the tool is level.
  • Position the pipe stand approximately 0-1/2 a degree to the left for the tracking angle.
  • Refer to the drawing. Note: when pipe flare is excessive, right-to-left trucking must be kept to a minimum. It may be necessary to use less than 1/2 a degree for the tracking angle.
  • If the tool is properly set up in a level position, but the back end of the pipe is higher than the end being grooved, the pipe may not track, in addition, the excessive flare may occur on the pipe end. Refer to the manual setup section and the for the tool setup and pipe positioning requirements.
  • Before grooving, make sure all instructions in the sections of the manual have been followed.
  • Connect the tool to an internally grounded electrical source.
  • Depress the safety foot switch momentarily to ensure the tool is operational. The lower roll should be rotating clockwise when viewed from the front of the tool.
  • Remove foot from the switch.
  • Open the valve on the hydraulic hand pump turning it counterclockwise to allow the upper roll and arm to move to the full up position.
  • Insert a length of pipe that is the correct size and thickness onto the lower roll. Make sure the pipe contacts the lower-roll backstop flange completely. Remove hands from the pipe.
  • Close the valve on the hydraulic hand pump by turning it clockwise.
  • The operator should be positioned on the safety foot switch/hydraulic hand pump side of the tool, as shown above. Pump the handle of the hydraulic hand pump to bring the upper roll down into firm contract with the pipe.
  • Depress and hold down the safety footswitch. The pipe will begin to rotate clockwise when viewed from the front of the tool. As the pipe rotates, begin forming the groove by pumping the handle of the hydraulic hand pump slowly.
  • Do not pump the handle of the hydraulic hand pump too fast. The rate should be sufficient to groove the pipe and maintain an audible, moderate-to-heavy load on the motor/drive.
  • Continue the grooving process until the depth adjuster lock comes into contact with the top of the tool body. Continue pipe rotation for several revolutions to ensure groove completion.
  • Release the safety footswitch, and withdraw foot from the switch.
  • Open the valve on the hydraulic hand pump by turning It counterclockwise to release the pipe. Remove the Pipe from the tool.
  • If no more roll grooving will be performed for a while, disconnect the tool from the electrical source.
  • The groove diameter must be within specification for the diameter and wall thickness of the pipe. The groove diameter should be checked and adjusted, as necessary, to ensure grooves remain within specification.

1.2 Threading of Pipes

  • A die head will be attached to cut the thread.
  • The machine now has the ability to threads pipes.
  • A heavy-duty pipe threader can also cut your pipe into workable sections.
  • The pipe threading machine will be used to thread the end section of your pipe.
  • Inspect the pipe threader before beginning and replace dies or any parts that show signs of wear.
  • Mount your pipe firmly in the pipe vise by placing it in the vise and then tightening it until it is held tightly.
  • Cut the end of the pipe cleanly and squarely by using a pipe cutter. The pipe cutter will have a thin cutter wheel, which will slice through the pipe as you guide it in the space. Be sure to wear goggles and protective gear.
  • Ream the cut end of the pipe to remove any burrs from the cut using a reamer, which is a cylinder-shaped rotary cutting tool that runs smoothly across the freshly cut edges of the pipe to remove rough edges.
  • Select the die head according to the size and type of pipe that is being threaded.
  • Place the die head over the pipe on the threader.
  • Press steadily on the front of the die head, while simultaneously pushing the handle down to start the threader. Before placing too much pressure on the handle, check to be sure that the ratchet pawl is engaged.
  • Use weight as leverage to apply pressure on the handle, while holding it firmly. Be sure to maintain proper footing and balance for maximum control. Never use a tool or mechanism to hold the handle in place in order to free your hands, this can be dangerous and could result in injury.
  • Apply threading oil generously while threading. Using oil too thin as a substitute for threading oil can result in sub-standard threading.
  • Cease threading when the end of the threading die is flat against the end of the pipe. When the die is even with the pipe, that means the correct threading size has been reached. If you continue pushing after this point, you will damage the thread.
  • Reverse the ratchet mechanism and turn the die head in the opposite direction. Be care full to maintain control of the threader as the dies are removed. Threads can be damaged when the die head is being removed if you don’t maintain control and move the piece smoothly.
  • Stand the pipe on end and gently tap it to remove any particles that may be lodged within.
  • Clean the pipe with cloth, removing any oil. Be careful, the threads will be very sharp.
  • Seal the threading with a pipe thread compound when attaching the pipe to the connector.
  • Clean the pipe threader machine thoroughly after use so the oils and metal pieces do not damage the machine, which could cause sub-standard threading during your next project.

Construction Method For Standpipes and Sprinkler Pipes

  • The mechanical supervisor will instruct tradesmen regarding the execution of the works and will distribute all necessary approved shop drawings of the latest version. The supervisor will also check that the tools and equipment available are in compliance with the contract requirements.
  • After marking the pipe routes, the anchoring points will be drilled according to the required support spacing as shown on the approved shop drawings.
  • Approved type of pipe support/ Hanger will be attached to the threaded rods, nuts, and washers will be installed as well.
  • Piping shall be supported with approved clevis hangers and rods.
  • Pipes will be free from burrs, rust, scale, and other defects and will be thoroughly cleaned.
  • The branch lines will be hanged to the proper level and will be connected to the cross main.
  • Pipe slope shall be properly pitched down while installation of pipework to facilitate drainage of the piping system.
  • Hangers shall be adequate to maintain alignment and to prevent sagging of the pipe.
  • Rigid support shall be provided near the zone control valve of the sprinkler and firefighting system.
  • Sleeves/ openings of suitable sizes will be provided at wall crossings.
  • Supports will be fixed in place by an approved construction method to suit the elevation of the piping as indicated and the approved shop drawings.
  • Pipework will rest freely on supports and carefully aligned prior to final connection to each other, or any other pertaining equipment as listed in the scope of works.
  • Where pipes enter through openings in fire-rated walls, an approved fire-stop will be used for sealing of opening.
  • Pipeworks will be assured against damage from earthquakes by means of flexible and rigid couplings, sway bracing, seismic separation assemblies where piping crosses building seismic separation joints.
  • Anchors, expansion joints, swing joints, and/or expansion loops shall be provided so that piping may expand and contract without damage to itself, equipment, or the building.
  • Flexible couplings shall be installed at locations where piping crosses building expansion joints.
  • A test & drain valve shall be installed in the zone control valve station on each floor.

Installations of Riser Pipes

  • Additional anchoring support and flexible coupling shall be provided in risers at a suitable location to accommodate the expansion or as per the approved drawing.
  • Vertical pipework will be supported by riser clamps and fixed points secured to the piping at the base of every level and as indicated on the approved construction drawings
  • Temporary caps will be provided to all open ends of the pipe upon completing the work in a day.
  • Sleeves shall be provided in all penetration through slab and walls.
  • Automatic Air vents and drain points shall be provided in the pipe at high and low points respectively.
  • Once the riser is erected, the pipe shall be offered for inspection and leakage test.

Hangers and Supports Spacing

Space pipe hangers and supports for carbon steel pipe in accordance with the specifications.
Hangers spacing shall be such that the piping is installed without undue strains and stresses and provision shall be made for expansion, contraction, structural settlement, and water-hammer.

Nominal Outside Dia. ln. (ND) Pipe SizeActual Outside Dia. ln. (mm) Pipe SizeWater Service Feet (meters)
1 (25) 1.315 (33.7) 12 (3,7)
1.25 (32) 1.660 (42.4) (3,7)
1.5 (40) 1.900 (48.3) 15 (4.6)
2.5 (65) 2.875 (73.0)15 (4.6)
3 (80)3.500 (88.9) 15 (4.6)
4 (100)4.500 (114.3)15 (4.6)
6 (150) 6.625 (168.3)15 (4.6)
8 (200) 8.625 (219.1)15 (4.6)
Suggested Maximum Span Between Supports (Spacing corresponds to NFPA 13 Fire Sprinkler Systems)

The detailed spacing calculation and support details for the hollow core area will be mentioned in the approved drawings.

Sprinkler Head Installations

  • The pendant & upright sprinklers shall be arranged such that there is no interference with the discharge pattern they shall be positioned between 25 and 300 mm below the ceiling.
  • The sprinklers and pipelines shall not be too close together in order to prevent an operating sprinkler from wetting and thereby delaying the operation of adjacent sprinklers.
  • In locations where sprinklers’ heads are liable to be operated or damaged by accidental blow, they should be protected by stout metal guards. Care shall be taken to ensure that the normal operation of the sprinkler head in the event of a fire is not impeded by such guards.
  • The distance between sprinklers shall not exceed 3.5 m. the maximum floor area to be covered by a single sprinkler for different hazards are as follows:
    • Light hazard =21 m2
    • Ordinary hazard =12 m2
    • Extra hazard =9 m2
  • The distance from the walls to the end sprinkler branch lines shall not exceed half of the allowable distance between sprinklers on the branch line. The distance from the walls to the end branch lines shall not exceed half of the allowable distance between the branch lines.
  • Ensure the sidewall sprinklers are installed only at light hazards and ordinary hazard occupancies with smooth, horizontal, or sloped flat ceilings.
  • Prior to installation of the horizontal sidewall, sprinklers verify that the face of the sprinkler fitting is within the proper range of distance, which can be accommodated by the type of escutcheon being used.
  • The horizontal sidewall sprinklers must be installed on the centerline of the waterway horizontal and perpendicular to the back wall surface .it is recommended that a lightweight spirit level, be used to level the sprinkler fitting and a square should be used to check the perpendicularity of the waterway centerline to the mounting surface.
  • With pipe thread sealant applied to the pipe threads and after installing standard escutcheon, over the sprinkler thread, hand tightens the sprinkler into the sprinkler fitting.
  • Ensure an adequate quantity of additional sprinkler heads of correct temperature rating is provided.
  • For systems not exceeding 300 sprinklers,6 spare heads shall be installed.
  • For systems exceeding 300 sprinklers but not exceeding 1000, 12 spare heads shall be installed.
  • For systems exceeding 1000 sprinklers, 24 spare heads shall be installed.

Pressure Testing and Procedure

  • Carry out all tests and inspections to prove that the installation meets the requirements of the NFPA 13, NFPA14, NFPA 20, NFPA 22, and NFPA 25 guidance.
  • Make available a highlighted drawing of the area intended for hydrostatic pressure testing.
  • Indicate on the drawing the location of vent/drain valve, plugged connections, and water pressure pump connections.
  • Place safety warnings at all points where personnel may pass through within the vicinity of testing.
  • Attach the pressure pump to the desired location through an isolation valve, bypass valve, and calibrated pressure gauge to indicate the pressure on the pipework.
  • The drain point will be plugged and the highest point of the system will be considered as the water supply point for pressure testing. The selected supply point will be provided with an isolation valve, calibrated pressure gauge, and manual water pump.
  • Isolate any parts of the system whose pressure rating is less than the testing pressure such as relief valves, automatic air vents, and all devices that might be damaged by the test pressure.
  • No pressure shall be applied against the closed gate of gate valves. All valves shall be in the open position but completely back seated during testing. End valves shall be capped installed by a blind flange.
  • No testing shall be carried out against or through the pressure reducing valves. The setting of the pressure reducing valves shall not be changed for testing purposes.
  • Plug all the open ends of pipes, keeping only two points open, one at the highest end & the other at the lowest end of the pipe section to be checked.
  • Verify pressure gauges for calibration certificates. Check the proper filling and pressurization sequence of the piping system to be tested.
  • Fill the pipe slowly with water through the filling point. Do not use a power-driven pump unless approved.
  • Fill absorbent pipes with water and allow them to stand 15 mins at working pressure.
  • Once all the air in the pipe system is purged through the “purge point” and only water starts flowing out indicating that the pipeline is free from trapped air, shut the air relief gate valve at the top end of the pipeline. Once the pipeline is filled with water shut the gate valve at the filling point too.
  • Now start applying water pressure through a hydraulic pressure pump, till the pipeline attains a test pressure of 1.5 times the working pressure for 2 hours. ( Working Pressure is 160 psi x 1.5 = 240 psi or 16.54 bar. i.e. The testing Pressure.)
  • Walk along the pipeline route & Inspect for any leakage. If any leakage is found, drain off the water from the system by opening the filling point at the lowest end of the system. Rectify the leak by tightening the joint or replacing of defective pipe I fitting as the case may be.
  • The test pressure shall be read from a gauge located at the low elevation point of the system or portion being tested.
  • Once the test has been satisfactorily completed the test pressure shall be released slowly so as not to produce shocks and sudden contractions that might damage the piping.
  • The system then shall be drained and the QC coordinator shall be notified.
  • A pressure testing report shall be prepared and signed by the client or any other concerned party.
  • Protect the piping installation and end cap the pipe.

Working in Double Height Area to Install the Sprinkler Pipes

General

In the drive area, HVAC ducts are installed, and don’t have access to reach the roof to install the sprinkler pipes. (mostly branch pipes)
a) For example consider the double-height area, ducts were already installed main pipes and workers cannot access the roof to install branch pipes and main sprinkler pipes. In this special case, we need to stand on the duct or erect
scaffolding to complete the works.

Two methods can follow to install the sprinkler pipes.

  • Using duct as a platform so people can stand on the duct by using lifeline and complete the work.
  • Using the scaffolding to install the pipes.
  • Please note, both methods will be followed on-site, the requirement will be as per site condition.

Option 1-Using Duct as Platform

  • Working at height should comply with project specifications.
  • Before starting the works, people should complete the formal training about working at height.
  • Here is a special case, that needs to work above the duct. This method will be followed only if scaffolding cannot be erected.
  • Use the same channel used to lift the duct which is not removed.
  • If that temporary plate or channel is not available then fabricate Plate and U clamp will be fabricated.
  • The channel will be anchored in the soffit ( existing precast roof).
  • By using the scissor lift/ scaffolding plumbers, helpers need to climb on the duct.
  • Before standing on the duct, make sure a proper lifeline is provided.
  • People should wear lifelines and tie them in the anchor points.
  • The pull-out test is already completed for the fischer anchor so workers can use it as an anchorage point.
  • Make sure lifeline enough length to place mobilize.
  • Now place a wooden board above the duct – the purpose of the wooden board is people should stand on the wooden board to avoid damage to duct insulation.
  • Place the wooden board on the duct flange to avoid damage.
  • Workers can climb on the duct using a scissor lift and stand on the wooden board.
  • Now plumbers/ workers can start doing the installation works.
  • Workers should not keep any sharp materials above the duct to avoid insulation damage.
  • Make sure fall arrest is enough length so workers can walk safely.
  • Until complete the works, the spotter should stand in a scissor lift for emergency and monitor the works.
  • Safety needs to monitor the works regularly.
  • The area needs to be barricaded until the completion of works.
  • Place warning sign- “PEOPLE ARE WORKING IN TOP”
  • Make sure illumination is available to complete the task.
  • Now start the installation of pipes.
  • The permit needs to be obtained from the main contractor safety.

Option 2-Working on a Scaffolding

  • This method can be followed if space is enough to place a scaffolding.
  • Erect a scaffolding in the working area in the double-height area.
  • Make sure the safety officer has inspected the scaffolding and certified it.
  • Now people should stand on the scaffolding and start the works.
  • Tie the lifeline in the existing anchor points ( as mentioned in Option 1)
  • Now start the installation of pipes.

Competence and Compliance

The Method Statement for Standpipes, Sprinkler Pipes, and Accessories Installations provided shall include a detailed clause-wise compliance statement in respect of:

Regulatory Compliance

This method statement has been developed to follow the regulatory requirements and as per project specifications.

Competency of Author/Originator

This method statement includes a statement verifying the competence of the document author/ originator and demonstrating competency.

Construction/Installation (SADD’s)

The project specifications compliance requirements section reference documents SADD’s are deemed to be a condition of this Method Statement for Standpipes, Sprinkler Pipes, and Accessories Installations are provided to demonstrate that the procedures identified are actually adhered at the site.

Risk Assessment, Health and Safety Compliance

This method statement has been developed specifically for the works specified in the designated area. A Risk Assessment of this work has been undertaken by the approved safety manager as per requirement.

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