The method statement for fiber optic cable defines the planning, site preparation, and installation of exterior underground fiber optic cables, fitting accessories, and utility structures.
Installations will be located as shown on the approved construction drawings and as detailed in the applicable specifications.
This method statement details the:
Methodology and sequence for the underground installation, termination, splicing, and testing of fiber optic cable system under contract to allow the system to be fully functional and compliant with standards, contract specifications, and approved drawings.
3. Risk Assessment
Hazard risk assessment and control measures for all activities involved in the underground fibre optic cable system have been carried out in accordance with the project HSE plan.
4. Reference Documents
a. Approved Shop Drawings
b. Approved Materials
c. Project Specifications
a. IFC Issued for Construction
b. ITP Site Inspection and Test Plan
c. HSE Health, Safety, and Environment
d. PPE Personal Protective Equipment
e. PQP Project Quality Plan
f. NCR Non-Conformance Report
g. QA/QC Quality Assurance/Quality Control
h. SOR Site Observation Reports
i. MIR Material Inspection Request
j. WIR Work Inspection Request
k. MST Method Statement
l. OMM Operation & Manual (O&M)
m. CL Checklist
n. RA Risk Assessment
o. UPVC Un-plasticized polyvinyl chloride
p. PVC Polyvinyl chloride
a. Project Manager (MEP) will be responsible for managing, execute complete and handover the construction activities within approved budgets and resources in compliance with requirements as specified in project specifications. He will be overall in charge of implementing the method statement for fiber optic cable installation per QA/QC and HSE requirements.
b. Responsible for controlling the project’s entire activities & for the overall coordination with the consultant/client.
c. Ensure that adequate welfare facilities and equipment are provided to the project to avoid injury, health impairment, or damage & to ensure providing quality works within the planned time scale.
d. All responsibilities stated in the Project’s Quality Assurance Plan.
a. Organize the site so that work is carried out to the required specifications with minimum risk to men, equipment, and materials.
b. Coordination with different functions with the project.
c. Expediting area of concern to achieve project schedule.
d. Adhere to the project-specific quality management program and HSE requirements.
a. Responsible for the work of entire quality assurance, quality control & inspection programs.
b. Produce all quality-related documents & reports necessary as requested by the Owner/Consultant/Engineer.
c. Provide written procedures & coordinate in formalizing the Method Statement for fiber optic cable installation with the Project Manager/ Construction Managers/Site Engineers to describe the job-specific work for each stage/activity.
d. All responsibilities stated in the Project’s Quality Assurance Plan.
a. Responsible for the work of entire quality assurance, quality control & inspection programs.
b. Produce all quality-related documents & necessary quality reports as requested.
c. Provide written procedures & coordinate in formalizing the Method Statement for fiber optic cable installation with the Construction Manager/Site Engineers to describe the job-specific work for each stage/activity.
a. Manage Safety Engineers and Safety Officers to be in strict conformance with project policies and procedures.
b. Must ensure safe work method as stated in MST and RA is fully implemented during activity.
c. Responsible for controlling HSE personnel for effective monitoring of work.
d. Oversee site safety orientations/inductions, toolbox talks, safety training certifications, job site inspections, working at heights, scaffolding tagging systems are fully functional, rigging, etc.
e. Report to Project Manager all personal injuries and near-miss incidents (aligned with Safety Engineers/Officers) as well as property damages immediately. Produce investigative reports and summaries to senior management.
a. Ensure that all workers have a safe place of work, advise a safe system of work, and provide adequate instructions, training, and supervision to enable employees to work safely.
b. Carry out site surveys on daily basis to ensure that the HSE methods of working are in operation & that all regulations are being observed.
c. Report, determines & analyses the cause of any accident or dangerous occurrence and recommends measures for preventing recurrence.
a. Adheres to the project-specific Method Statement for fiber optic cable installation, procedures, inspection programs & HSE instructions to get the activities performed to client satisfaction with full coordination with the HSE & quality personnel.
b. Responsible to ensure that correct drawings, materials, tools, and equipment are provided on-site.
c. Liaising with sub-contractors, supervisors, planners, quantity surveyors, and the general workforce involved in the project.
d. Responsible for planning the work and efficiently organizing the plan and site facilities in order to meet agreed deadlines.
e. Site engineer is responsible to coordinate with QA/QC team engineers/ inspectors, and handover daily site progress works reports/highlighted drawings & present during inspection/site visit with QA/QC inspectors & consultant/client.
a. Responsible for all survey works and report to Site Engineer.
a. Performed the activities that were instructed by the Supervisor/Engineer at the site and follow the safety procedures to make it safe for his workers.
b. In charge to lead the work execution send the focal point in coordinating with the site Supervisor/Engineer related to overall site activity, materials, tools, and equipment.
a. Carry out Installation work as per the concerned foreman’s instructions with all the safety requirements.
b. The workforce to attend daily toolbox talks, morning task briefs prior to starting any works EHS (Environment Health Standard) plans and policies.
c. Carry out their work in such a way that they don’t create for themselves or any other person risk to health safety, and don’t impact the environment to the maximum extent possible or affect the quality of work.
This resource and manpower are not limited as above mentioned but will be increased and improved as project requirement to implement the work without delay, with quality control and safety of personnel.
a. Site Engineer
d. Charge Hand/Supervisor
e. HSE Engineer/officer
h. Skilled labor as per the required work
7.2. Tools and Equipment
Operators of the equipment will be certified by 3rd party and have valid license/registration issued by the traffic department.
a. Measurement tool
b. Pliers & equipment
c. Line marker
d. Hand cutter
e. Fiber optic disposal unit
f. Crimping tool
g. Fiber optic scribes
h. Fusion splicer & splicing hardware
i. Fiber optic strippers & sitters
k. Miller riser cable tools
l. Pull rope
m. Digital cable meter
n. Jack stand/reel
p. Impact tool
q. Mid-span access tool
s. Precision fiber cleavers
t. Temporary lighting
a. Fibre optic cable
b. Rack cabinet
c. Splice enclosure
d. Patch panel
g. Labeling material
h. Velcro tie/cable tie
8. Sequence of the Works-Method Statement For Fiber Optic Cable Installation
a. The following methodology is for cable laying, testing & commissioning.
b. MEP will only commence after receiving clearance from other departments to start the underground installation and cable laying.
8.1. Delivery of Materials, Storage, and Handling-Optical Fiber Cables and Accessories
1. Upon receiving cables, inspect protective cable covering for evidence of damage during shipment. Report immediately to the carrier if evidence of damage is found.
2. Accomplish unloading without contacting cable surface or protective wrap. If unloading by crane, use cradle supporting reel flanges or a shaft through arbor hole. If using a forklift, lift the reel at 90 degrees to flanges. Use forms long enough to make complete lifting contact with both reel flanges.
3. If using the inclined ramp for unloading, use a ramp wide enough to contact both reel flanges completely. Accomplish stopping of reels at the bottom by using the reel flanges and not the surface of the cable.
4. Do not drop reels from delivering the vehicle to the ground.
5. Store reels on a firm surface to prevent flanges from sinking into the earth and allow the weight of the reel and cable to rest on the cable surface.
6. Do not store reels in an area where construction equipment, falling or flying objects or other materials will contact the cable.
7. Store cable where chemicals or petroleum products will not be spilled or sprayed on the cable.
8. Store cable away from open fires or sources of high heat.
9. When a reel of cable is rolled from one point to another, check for and remove objects on the surface that could contact or damage the cable surface or protective wrap. Roll reel in the direction to prevent loosening of the cable on the reel.
10. Store cable according to manufacturer’s recommendations, as a minimum. In addition, store cable in a location protected from vandalism and weather. If the cable is stored outside, it must be covered with opaque plastic or canvas with provisions for ventilation to prevent condensation and for protection from the weather. If air temperature at the cable storage.
11. Deliveries will be Inspected and handled at the site area according to the given instructed requirements.
12. All uPVC, fitting accessories, utility structures, and fibre optic cable drums will be covered and stored above grade in a secure and protected location in order to be protected from climate, dust, and entrance of debris and will be codified for easy traceability.
13. Ensure that the proposed storage area for the materials is cleaned.
14. Separate areas in the storage zone must be marked for different materials.
15. Ensure that the material is stored in a shaded area to protect it from exposure to direct sunlight.
16. Ensure that the lifting equipment is adequately rated for the specked weight (shown on the rating plate) and fit for purpose.
17. Verify that the bracing & supports are provided to prevent damage during transit, lifting, or unloading.
18. All materials received at the site will be inspected with the corresponding inspection request (MIR) issued.
19. Ensure that the materials are as per the approved submittal any discrepancies Damages etc. will be reported for further action.
20. Material found not suitable for the project will be removed from the site immediately.
21. When handling drums, suitable precautions should be taken to avoid damage to the cable and injury to the people. Due regard should be paid to the mass of the drum, the method and direction of rolling, and the method of lifting.
22. It is preferable for ease of handling and safety to move drums by special cable drum trailers and whenever possible the cable should be laid direct from these. In certain cases, it may be possible to lay a cable from a drum trailer whilst it is being towed alongside the trench, thus giving a considerable saving in time and effort.
23. The drum mounting position, if stationary, will be influenced by the following:
Accessibility-Good access to where the cable drum is to be mounted.
Gradient-On sloping ground, cables should be pulled downhill.
Bends-The drum should be mounted at the end of the trench nearest the bends. The force required to pull the cable is near to the drum, and therefore, the side forces and friction on the bends will also be less.
24. Ducts-To minimize the disturbance to ducts and the resulting possibility of damage to the cables, the drum should be at the end of the trench farthest from the ducts.
25. When rolling drums, it should be over short distances only and the drum rotation should always be according to the arrow marked on the drum flange. This will ensure that any slack cable is worked to the outer end. Failure to take this precaution may result in slack cable collecting at the hub of the drum causing damage.
26. Cable drums should be transported with the drum axis horizontal and any drum movement should be avoided.
27. Cable ends should be firmly attached to the drum during transport and storage to prevent damage to the cable.
28. For loading and unloading of cable drums, suitable lifting and hoisting equipment should be used. A drum should not be dropped.
29. Cable drum jacks should be mounted on a firm level base. If the ground is uneven, a foundation should be provided by using stout timber solidly packed.
30. Timber packing may also be necessary to prevent settling of the jacks by spreading the weight if the ground is soft. It may be necessary to locate the drum in the roadway away from the trench and in this case, the drum should then be offset by not more than 30 degrees to the line of the trench. For safety, the drum should not be mounted closer than 1m to trench excavations of normal depth.
8.2. Site Execution
As follows are the procedures for the installation of optical fiber cable:
8.2.1. Survey Works
Surveyor will set out the location as per the approved shop drawing and MEP coordination with all project services and it will be checked by QA/QC Engineer and after written approval, the installation process will be started. A further survey will be carried out after the execution of the works for the purpose of as-built drawings.
8.2.2. Work Permits
Before commencement of work, a “Permit To Work” indicating the activities to be performed will be obtained from concerned authorities as per HSE policy and procedures.
a. The HSE department is authorized to issue and control work permits.
b. Make sure that every worker to perform the work has attended the specific safety training before commencing work.
c. Work in a confined space require a work permit from the site engineer/site supervisor.
d. A permit will be required for hot work.
e. The result of the inspection with the permit to work will be communicated to all persons who will be involved in the execution of the work.
a. Before using an electric tool, check the tool and its plug and connecting cable.
b. Do not use damaged tools.
c. Do not use an electric tool unless its connecting cable is well protected.
8.2.4. Fire Risk
There is always a fire risk however the chances of fire can be reduced and you will know what to do when a fire breaks out if you:
a. Always keep the workplace clean and tidy.
b. Handle machinery and tools that may generate sparks or hear carefully.
c. Know where fire extinguishers are located and how to use them.
d. Know the place of assembly for fire evacuation.
8.2.5. Load Shifting Machinery
a. Unless you are a worker concerned, do not work in an area where a lifter, crane (mobile/tower), etc. is in operation.
b. Do not operate any load-shifting machinery without training and approval.
c. Operators of forklift trucks, bulldozers, loaders, excavators, trucks should possess appropriate certificates/passes.
8.2.6. Portable Power Tool
Do not use a portable power tool (such as a saw grinder and drill) unless its dangerous parts have been effectively guarded.
The procedures for the Installation of Underground Fiber Optic Cable are detailed below:
a. Check and the actual condition for installation of underground fiber optic cable.
b. Cable the approved issued shop/ design drawings.
c. Provide all necessary work permits; indicate all the activities prior to work execution.
d. Ensure the permit has HSE approval.
e. Provide sufficient safety signage and barricade the work area if needed.
9.2. Site Access
a. Clearly designated walkways must be established to allow persons to access the site safely.
b. Walkways must be maintained free from obstruction and any debris.
c. Adequate illumination must be provided for access routes and walkways.
d. Signs must be displayed to indicate the routes to be taken by persons, changes in routes must be clearly communicated.
e. All safety measures will be taken care of as per the instruction of the HSE department.
Before the commencement of installation, the following are required to be carried out:
a. Drawing for External Underground Fiber Optic Cable will be approved and will be coordinated with other services.
b. Proper access will be provided as per the approved program.
c. Location/area will be ready for site installation.
d. Prior to the installation, the area where the items to be installed will be inspected.
e. Prior to the installation, check all cabling as per detailed drawings.
f. Mark the device/panels location and leave enough length of cable at both ends for termination.
g. An up-to-date test report will be checked.
h. All inspections (previously conducted) are checked and should be approved by the consultant representative.
9.4. Trench Installation
If dewatering is required for trench preparation, this will be performed:
a. Trench sizes will be made as per the approved IFC drawings and as per the suitable trench size.
b. Inspection by the consultant representative has to be done for each stage.
c. Place approved bedding material to the extent necessary for establishing the correct elevation at all locations where the bottom has been excavated below indicated grade.
d. Good coordination with the civil team has to be done.
e. The bottom of the cable trench will be covered, to a depth not less than the diameter of the largest cable, with a bedding layer of sand or fine soil.
The following criteria are to be followed as per project specifications:
- Depth of the cable trench will be 950mm for MV cables.
- Depth of the cable trench will be minimum of 650mm and maximum of 850mm for LV cables.
- Cable trench will be bedded with 150mm thickness of dune sand.
- Minimum clearance of 300mm from other services.
- Dune sand will not contain stones, shrapnel and flints also free from other foreign materials.
f. Prior to installation of sleeve pipes, the trench preparation will be checked for the required elevation, slope, and free from rock, stones, and other deleterious materials. The installation will be not be started until unsatisfactory conditions have been corrected.
9.5. Procedure of Conduit/Sleeve Installation
UPVC/PVC Sleeve Installation (EN6) for Road Crossing of Fiber Optic Cables
a. Sleeves will be not be filled with cables to more than 60% of their capacity. Nylon drawcords will be always be left in sleeves.
b. Before laying of sleeves. The trench bottom is of a smooth and firm contour and free from any sharp materials or obstructions.
c. The trench should be sand bedded for 150mm. Then sleeve separators are used for underground ducts installation and will be snaked to avoid tension during backfilling operations and subsequent settlement.
d. Make joints in ducts and fittings watertight according to manufacturer written instruction. Stagger the joints of multiple layers of conduits to not create a weak point in the duct run. Bell mouths are installed at each end of the duct pipe.
e. Install no more than equivalent of two 90-degree bends between pull points.
f. No protective cap, disc, or other appliance on the end of pipe or fitting will be removed permanently until the pipe or fitting which it protects is about to be jointed. Pipes and things will be examined for damage and the joint surfaces and components will be cleaned.
g. Suitable measures will be taken to prevent soil or other material from entering pipes and to anchor each pipe to prevent flotation or other movements before the works are complete. Before making the joint ensure that both the pipe end and the sealing ring are clean. Lubricate both the pipe ends and the sealing ring in the socket with lubricant.
h. Ensure that components to be joined (by push-t method) are correctly aligned, and then push the spigot fully into the socket.
9.5.1. Installation of Optical Fiber Cables
a. Pre-installation inspection of optical fiber cable will be carried out as per requirement and recorded.
b. All the cable rollers will be of sufficient size to accommodate the cable without any damage to its outer sheath.
c. The cables will be laid in a sequenced manner.
d. The cable will be left from the bottom of the drum while pulling.
e. The pulling tension does not exceed the safe pulling tension of allowable force of the cable.
f. Check that the wire pulling sock will be tied to the cable end and the winch rope will be attached to the sockeye if required.
g. Lubricate the cable, if necessary, from the drum end prior to its entry into the trench with the approved pulling compound.
h. After cable pulling is completed and testing has been done, inspection to proceed for cable laying, cable tiles, and backfilling.
i. As per the approved shop drawing, warning tape will be provided 300mm below the ground level along the cable route.
j. Identify the cable route by placing the cable route marker at 30 meters of the interval to the straight run and at points where the route changes direction to the entire route for cables.
k. Proper care will be taken while pulling the cables through sleeves to avoid damages.
l. Connect the strength member of the cable to the pull line. Unless cables are designed for such use, basket grips and similar methods of attachment should not be used.
m. UL approved lubricant will be used to assist in pulling bar optic cable (if required).
n. Use a swivel while pulling to prevent the cable from being twisted by rigid attachment to a fish tape. To keep pulling tension within careful limits, do not use power pullers with fiber unless you use a tension meter as well. As a general rule, the tension should not exceed 300 pounds with indoor cables and 600 pounds with outdoor cables. But always check the specifications for the cable to be sure.
o. Use lots of large pull boxes and divide pulls in half or even thirds at corners or pull boxes.
p. A pulling operation must be stopped if pulling tensions reach the cable’s limit.
q. The discontinued pull will have to be aborted, the cable pulled back out and replaced on the reel, and the pull started again using shorter runs, better lubrication, or both the cable may be reused if the pull or extraction has not damaged it.
r. Identify exact terminating locations in advance, keeping in mind that the cable must be pulled all the way to where it will be terminated, not just into the room. This obvious though often overlooked step can lead to costly mistakes if forgotten.
s. Carefully measure the cable’s path before the conduit pulls to avoid the need for splices.
t. Not only do splices cost time and money, but they also cause a loss in both signal qualities and strength. In fact, most designers specify point-to-point or device-to-device runs to avoid needless signal loss from splices.
u. The preferred way to measure is to use a pull tape. This product, sometimes called mule tape, is an at the ribbon, consecutively numbered in feet, which is usually made of polyester or aramid yarn and may be coated with plastic for water prong. It comes in different lengths and pulls strengths.
v. Pull the pull tape into the conduit, or along the cable path, for an initial measurement, and add to that extra length for splices, terminations, and future access coils, if specified.
w. The amount of additional optical fiber cable needed for splicing depends on site conditions, splicing method used, and long-range plans for cable usage.
For termination length, about 2 to 3 meters of additional cable beyond where the terminal will be mounted.
Add about 10 to 12 meters per span for any access or repair coils. A good rule of thumb to cover all these additional cable lengths are to allow 1 percent extra for outside plant (outdoor) cable runs and 5 to 7 percent extra for inside cable runs.
x. Choose crews based on the length of the pull, total degrees of bend, tail loading (force required to pull cable o feed reel), use of lubricant, and use of power putting equipment. In most cases, two- or three-person crews are ideal. That way, one person pays the cable off the reel and into the duct, while one or two others pull at the other end.
y. Don’t forget to mark the cable with marker tape buried below the surface; this will act as a warning to anyone digging in the area. If you’re using a cable construction not containing metal, use a metal impregnated marking tape so the cable can be located with appropriate equipment.
z. Aside from the regular work hazards of cuts, bruises, falls, etc., you must consider additional hazards. Check for hazardous gases before anyone enters a manhole. In fact, you might need a separate air supply. You’ll have considerable forces on the puller, sheaves, and/or pulleys. And, you may be using pulleys 5 ft. in dia. If one of these is let go, serious injury can result. Your best bet is to use chain or steel cable (chokers) rather than rope to tie pulleys and pull equipment in place. Above all else: Examine each situation carefully before you start work.
aa. Guard the manhole a combination guard and emergency man lift is ideal. If the manhole is in a high-traffic area, you’ll need a warning light. If the cable installation takes more than one day and you leave it idle overnight, protect it during that time.
Identification of Electrical Services
Temporary identification labels and notices will be provided immediately after the installation inspection is approved.
Warning, caution, and instruction notices will be provided temporarily. It will be ensured that all identification labels and notices are installed in a visible position.
Redline Mark-up & As-built Drawings
If any changes occur in the routes (Non-adherence to the approved Shop drawings) then such information will be detailed in the As-Built Drawings with Redlines.
10. Testing of Installed Fiber Optic Cable System
a. Prior to testing the cable, the concerned Foreman or Engineer should make sure all the safety precautions are taken and experienced technicians need to carry out the testing.
b. Testing will be done as recommended by the manufacturer.
c. After the installation of underground cable, insulation resistance test and continuity test of cable need to carry out as per the Project specifications.
d. The QA/QC Engineer/Inspector will be responsible for completing Inspection Reports for these activities.
e. Make sure the cabinet and surrounding area are dust-free.
f. Remove the dust cap and clean the inner part of the coupler.
g. Connect the test jumpers on both near and far ends (Power meter & light source)
h. Press the start button and begin the test.
i. Note down the test values on a chart for calculating average loss.
j. The same procedure will be repeated for all the cores.
11. Quality Control-Method Statement For Fiber Optic Cabling
The Inspection and Test Plan (ITP) for this Method Statement For Fiber Optic Cable Installation summarizes various characteristics to be checked.
The concerned Site Engineer or Site Supervisor will be responsible for ensuring compliance with these operations. The site QA/QC Engineer will carry out quality control checks and report the inspection results.
11.1. Quality Records
a. Quality records will be provided as identified in the ITP and maintained as per ISO 9001.
b. Required forms of records and reports are defined in the Inspection and Test Plans.
c. Required tests will be carried out as mentioned in ITP.
d. Submission of as-built records will be done after completion.
11.2. Specific Quality Measurements
a. All works will be undertaken in compliance with the quality requirements of the contract.
b. Where non-conformance is found/identified to demonstrate its conformity. All works requiring inspection and testing to demonstrate conformity with requirements will be undertaken in accordance with the “Control of Inspection and Testing”.
c. Where non-conformities are found/identified, they will be addressed in accordance with “Procedure for Control of Non-Conformances”.
The quality control activities associated with the works will be conveyed to all personnel involved in the execution of the works by the Project QA/QC Manager prior to the commencement of the work. The equipment and instruments used for measurements on-site will be calibrated and certified.
The relevant documents will accompany the corresponding equipment and instruments. Necessary internal and external training is provided to the staff carrying out the job to ensure that the quality standards required on the project are met. Skilled and competent personnel are deployed to undertake the job.
12. Health and Safety
12.1. Specific Health & Safety Requirements & Precaution Measures
a. The works will be carried out in compliance with the applicable HSE legal and contractual requirements as well as Health and Safety Plan.
b. Any emergency situations that may occur on-site will be dealt with following the procedures, responses, and controls as described in the Emergency Preparedness and Response Plan.
c. The significant HSE hazards and risks related to the works covered by this document have been identified, and documented in “Risk Assessment”.
d. The environmental hazards and risks will be identified and documented in accordance with the Environmental Risk Assessment Plan.
e. The identified hazards and associated risks and mitigation controls will be communicated to the workforce through registered pre-task briefings at the beginning of each shift.
f. Daily task briefing will be performed prior to commencement of works.
12.2. Personal Protective Equipment
The minimum PPE as per the project HSE plan that all personnel involved in the works will wear:
High Visibility Vest
Protective eyewear (glasses)
Personnel not directly involved in physical work, who are visiting the site must also wear all the required personal protective equipment at any time they are outside of their vehicle, except gloves, which are discretionary.
Personnel who are visiting the site but not leaving the PPE “free” designated areas which, if present on the site, will be clearly defined by signs and barriers (typically around the offices and car park), are not required to wear PPE (but it is recommended, especially protective eyewear).
a. Safety and health induction will be conducted by Health & Safety department before the commencement of works to each person involved in works. All operators involved in the execution of the work and the workers who undertook critical tasks will be competent and certified to undertake the works. The drivers will hold a valid license.
b. All workers will receive a daily briefing about the works they have undertaken that day.
c. All personnel will wear the required Personal Protective Equipment (PPE) in accordance with the Health and Safety Plan.
d. The Site Engineer is responsible for the job and will be present at the site during working hours and a Safety Officer as well to monitor all activities.
e. Any incident, injury, and near-miss will be reported immediately to the Safety Department and Site Manager.
f. The welfare facilities (see Health and Safety Plan) for the site work including drinking water cooler, shaded area, worker’s toilet blocks, dedicated smoking area, emergency standby vehicle will be established prior to commencing the works.
14. Appendices References
Appendix A – Inspection and Test Plan
Appendix B – Inspection Check List
Appendix C – Risk Assessment
Appendix D – Reference Drawings