DUAL COMPARTMENT OPTICAL TERMINATION BOX

CONTENTS

1.  GENERAL.......................................................................................................................3

1.1 Scope..............................................................................................................................3

2.  INTRODUCTION OF OTB.........................................................................................3

3.  OTB REQUIREMENTS..............................................................................................3

3.1 Description...................................................................................................................3

3.2 Drawings......................................................................................................................4

3.3 Dimension and Material Specifications......................................................................5

4.  Environmental PERFORMANCE……………………...................................................6

4.1 Vibration Test..............................................................................................................6

4.2 Thermal Cycling Test..................................................................................................6

4.3  Axial Pull-out Test......................................................................................................7

4.4  Water protection test (IP55) for Outdoor Type.........................................................7

5.  PACKING & MARKING...................................................................................8

5.1 Packing........................................................................................................................8

5.2 Marking.......................................................................................................................8

1. GENERAL

1.1    Scope

This  internal specification includes the structure, characteristics and packing/marking information of FOTB-I/O-DC SERIES. The FOTB-I/O-DC SERIES is designed to provide many important functions in the FTTx Network such as the optical signal distribution, cable storage and fiber termination/splicing. The FOTB-I/O-DC SERIES shall be produced by the ISO-9001 certified production facilities. And all processes from product design to packaging were controlled by the Quality-Control System.

Model	Description
FOTB-I/O-DC SERIES	FOTB: Optical Termination Box
	I/: Indoor/Outdoor installation
	DC: Dual Compartment

2. INTRODUCTION of OTB

LS Optical Termination Box is designed to terminate, splice and interconnect fiber optic cables in an outdoor environment. This box accommodates FTTH applications by mounting to the exterior surface of a dwelling and connecting between the distribution cable and drops routed to individual living units.

3. OTB REQUIREMENTS

3.1    Description

The box is divided into two sections with distribution cable routed into one section and drop cable routed into the other section. The cables meet at a splicing field that includes termination for the distribution cable and parking for the drop cables or the splice field that can be configured with splice trays for splicing the cable. The box may be pre-terminated on the distribution side with an outside plant cable stub so that the unit is quickly connected to the plant. It may be pre-wired with pigtails on the drop side so that individual drops routed into the unit can be spliced to the connectorized pigtails.

<Fig. 1. Photo of FOTB-DC Series>

3.2   Drawings

<Fig. 2. Ref. Drawings of FOTB-I/O-DC SERIES>

3.3    Dimension and Material Specifications

-        Indoor

Parameter		12FO	24FO	36FO	48FO
General	Dimension (LXWxH)(mm)	350x320x80	350x320x80	350x320x125	350x320x150
	Color	Ivory / Beige / Black
	Material	SPCC
Cable Entry	No. of Entry (In/Out)	2 / 2
	Dia. of Inlet (mm)	Max. 25
	Dia. of Outlet (mm)	Max. 25
Adaptor*)	Type	SC(Default) / LC / FC
	No. of Adaptor	Max. 12	Max. 24	Max. 36	Max 48
Connection	Splice Method	Fusion / Adaptor
	No. of splice tray	1	2	3	4
	Capacity per tray	Max. 12
	Total Capacity	Max. 12	Max. 24	Max. 36	Max. 48
Application	Installation Environment	Indoor
	Installation type	STD: Wall mount(Option for Pole mount)
	Locking Method	Key Lock

* Adaptor panel type can be substituted other type which can accommodate Simplex LC, Duplex LC, Duplex SC adaptor and other types.

-        Outdoor

Parameter		12FO	24FO	36FO	48FO
General	Dimension (LXWxH)(mm)	350x320x100	350x320x100	350x320x150	350x320x170
	Color	Ivory / Beige / Black
	Material	Aluminum (or Stainless Steel)
Cable Entry	No. of Entry (In/Out)	2 / 2 (or In case of drop entries: 12 / 24 / 36 / 48)
	Dia. of Inlet (mm)	13 ~ 18
	Dia. of Outlet (mm)	13 ~ 18(or In case of drop entries: 3 ~ 6)
Adaptor*)	Type	SC(Default) / LC / FC
	No. of Adaptor	Max. 12	Max. 24	Max. 36	Max 48
Connection	Splice Method	Fusion / Adaptor
	No. of splice tray	1	2	3	4
	Capacity per tray	Max. 12
	Total Capacity	Max. 12	Max. 24	Max. 36	Max. 48
Application	Installation Environment	Indoor
	Installation type	STD: Wall mount(Option for Pole mount)
	Grounding	Available
	Locking Method	Key Lock

* Adaptor panel type can be substituted other type which can accommodate Simplex LC, Duplex LC, Duplex SC adaptor and other types.

4. ENVIRONMENTAL PERFORMANCE

4.1 Vibration test

Test Procedure	1.  Fix the fiber distribution panel on the vibration tester 2.  Vibrate for 1hours with amplitude 1mm, frequency 10-55-10Hz in 10minutes 3.  Check the mechanical damage
Requirements	There should be no cracks, fractures and disconnection.
Test Assembly	[Test Equipment] Vibration Tester→ HI-5050
Test Result	1. Cracks/fracture/disconnection	None
	2. Mechanical damage	None
Judgment	Complied

4.2 Thermal cycling test

Test Procedure	1.  Put fiber distribution panel in the tester. 2.  Thermal cycle: 20 → 2 → 50(relative humidity 80%) → 20℃     (Maintaining 2hr at each Temp.) 3.  Temp. rising/falling: 1 ℃/min 4.  2 cycling test(17hr 12min) 5.  Check corrosion and mechanical damage.
Requirements	1.  There should be no corrosion 2.  There should be no mechanical damage.
Test Assembly
Test Result	1.Crossion	None
	2. Mechanical damage	None
Judgment	Complied

4.3 Axial Pull-out Test

  

Test Procedure	1.    Load F= D x 1000N/45 (D: cable diameter) 2.    Longitudinal axis for 30 min
Requirements	No Pull-out of cables from the enclosure
Test Assembly
Test Result	1. Cable pull-out	None
	2. Mechanical damage	None
Judgment	Complied
Remark	-

4.4 Water protection test (IP55) for Outdoor Type

Test Procedures	The board is tested by means of a spray head or a flushing pipe which is aimed at it from all sides according to the standardized testing time / volume flow.
Requirements.	Water Penetration
Test Assemble
Test Result	Water Penetration	None
Judgment	Pass
Remark

5. PACKING AND MARKING

5.1 Packing

5.1.1 The LS FOTB-I/O-DC SERIES shall be well packed in individual box.

5.1.2 The LS FOTB-I/O-DC SERIES shall have necessary accessory for installation, I.e. user manual etc.

5.1.3 Each LS FOTB-I/O-DC SERIES is to be packed with a protective material.

5.2 Marking

Details given below shall be distinctly marked with a weather proof material on the both outer sides of the shipping carton. Other shipping mark is also available if requested by customer.

-      Product item

-      Country of origin

-      Manufacturer’s name and/or trademark

-      Gross weight

-      Caution mark, I.e. maximum stacking height

<The end of specification>

CONSIDERING CLIMATIC CONDITION IN BANGLADESH TO PERFORM A PROJECT

Prediction to Nature

Why Climatic Condition is Necessary to Plan a Project?

The climatic condition is major considering issue to implement an outdoor project- like underground or submarine power transmission cable line in specified time period keeping project cost within a budget frame. Regional weather conditions affect the technology and engineering design, performance of the plant and of course implementing cost and project management.

The intent of this article to consider the climatic condition in Bangladesh particularly implement the high voltage and medium voltage underground and submarine power transmission cable line project in capital city Dhaka and costal city Chittagong.

 

The presenting the weather condition will help to understand the level of weather impact on time scheduling, risk managing, costing and budgeting the project; professional can use this data to eliminate or reduce the impact of weather.

Climatic Data for Bangladesh

Bangladesh experiences tropical hot, wet and dry climate. Whole the year, distinguished six seasons, but factors will affect for project implements are southwest monsoon with heavy rainfall, tropical storm with heavy thunder and wind, common tornados; also considerable hot & dry, and cold weather for project management.

 

History of Rainfall in Dhaka City

The area is close to sea level and is in a tropical climate. The ambient temperature variation is between 5^oC and 40^0C with periods of high humidity.

 

The area is designated a zone of moderate intensity for earthquakes and costal cyclone. The seismic factor is 0.15g.

 

Atmospheric pollution is mid-level and special insulator design or washing is not required. The area is subject to high winds of typhoon strength. The average climatic conditions  in Bangladesh is as below:

 

Maximum ambient shade temperature : 40^o C

Minimum ambient shade temperature : 50 ^oC

Maximum daily average temperature : 35 ^oC

Maximum annual average temperature : 25 ^oC

Maximum wind velocity (3 second gust) : 160 Km/h

Minimum wind velocity for line rating purposes : 1.6/3.2 Km/h (33/132kV)

Solar radiation : 100mW/sq. cm

Rainfall : 2.5 m/annum

Relative humidity, maximum : 100%

Average : 80%

Altitude : less than 150m

(No ice or snow expected)

Atmospheric Pollution : mid-level

Soil type : alluvial

Soil temperature (at 1.1m) : 30 ^oC

Soil thermal resistivity : 1.50C m/w

Isokeraunic Level (Thunderstorm days) : 80

Southwest Monsoon with Heavy Rain

Southwest Monsoon is main unfaberable season for outdoor works in Bangladesh due to continuous heavy to very heavy rainfall, flash flood and natural calamity etc. This occurs from June to until September.

 

Most of the rural are goes under water and in urban area authority does not allow to construction work in public space like road cutting for cable trench, sewerage or water line.

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Tropical Storms and Heavy Thunder

Tropical summer storms come with heavy strong wind, sometime turns into tornado without any notice. This storms not continue for long time, just for a portion of a day. From April to June this happen each year in Bangladesh.

 

Outdoor construction works may hamper and some accident may occur by falling or propelling materials due to heavy wind.

 

To perform an operation in tower or over the land level for hoisting and lifting in the stormy season, necessary arrangement must take to tackle the risk.

Common Tornados in Bangladesh

Tornados are very much common natural disaster in Bangladesh. Long coastal area including Chittagong are affected each year several times by tornadoes and cyclones.

 

During cyclones most of the coastal area affected by high tides and flash floods, damage to housing and infrastructure from stronger winds and storm surge.

 

Roads and communication system may shutdown temporarily for some remote area. Due to flood water in low-land, project may need re-scheduling to complete the work.

Hot and Dry Weather

Sometime the summer come with very hot and dry weather that causes very difficult outdoor work for worker and need midday break what major pose for construction work. Hot and dry weather causes of formation hues dust and dirt, equipment and machinery may malfunction or damage.  

 

Sophisticated cable jointing works may become difficult to keep the jointing vicinity dust free, humidity and ambient temperature controlled. Some metallic and electronic measuring equipment and tools may give error in their calibration due to outdoor hot temperature.

 

In high temperature causes reduce the elasticity of some materials and  hardware may show errors in measurement due to expansion for increased temperature.

 

Due to dry temperature lack of moisture may cause unexpected effect for building or jointing materials.

Hot and dry weather may need extra doses of water for masonry works.

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Cold Weather

There is no history to ice or snow in Bangladesh, temperature never goes below 5^o C, temperature range in winter from December to February 10^oC to 181^oC which is very comfortable to outdoor works.

 

Sometime weather goes foggy in morning that causes bad-traffic in roads and delay to reach workstation.

Engineering and Technology Selection Considering Climatic Parameters

Considering the factors of climate, local weather and variation of its seasonal characteristics, the equipment and tools group selection need picture-perfect. 

Engineering and technology selection to perform the project implementation, climatic information will leads to seamless economic decision. Bearing the weather conditions and making necessary arrangements always possible to reduce time consuming, loss & injury.

 

Weather is always around us, we cannot keep it away, but we can manage our project scientifically and technologically that become weather-friendly.

Get Benefits of HTTPS over HTTP in Your BlogSpot Blog

How Set Your Blog URL from HTTP to HTTPS

BlogSpot recently announced that they are supporting HTTPS instead of HTTP. Actually they were working with strong security HTTPS encryptions between users and Google servers, science 2008. As a part of the topmost secured Google for everywhere, Google already provided the benefits of HTTPS in Search, Gmail, Drive and many others products from last couple of years. Recently announced for on ads products also. Consequently as a part of mission expansion, BlogSpot are now going to give opportunity for your blog to get benefits of HTTPS over HTTP just changing the URL.

It is very simple to set your blog address URL from http to https, go to your blog dashboard and open Settings, select Basic, then you will find HTTPS Availability under head of HTTPS Settings, from the dropdown button select Yes and come out after save changing. You have done!

You already turned your blog URL from HTTP to HTTPS, changed will be appear in the address bar as https:// where it was before http://.

Don’t worry to access previous HTTP connection, your blog now able to access both of HTTP and HTTPs connections.  BlogSpot said custom domains are not supporting this first version of change, but they are moving gradually everywhere.

Get Ranking Boost Benefits of HTTPS over HTTP

Google said HTTPS gives your websites some search ranking benefits as a very lightweight signal and it will keep everyone safe on the web. Google working gradually to strengthen on ranking boost benefit for all websites and encourage all website owners to switch from HTTP to HTTPS to keep safe everyone. Google also said based on their test result, HTTPS working positively as per signal analysis report of ranking in Google’s search results.

Some of SEO expert saying, Google has confirmed HTTPS as a ranking boost, but sites ranking boost HTTPS’s alone is quite small where remains dozens of ranking factors that have a bigger impact; such as  Attractive links, Competitive analysis, Improved social meta tags, Reduced crawl errors, Fix duplicate content, Perform a site audit, Optimize for speed, Local optimization, International targeting, Creating quality contents, Targeting relevant search phrases, Freshen post contents, Improved internal linking and On page optimization ect.

In fact, HTTPS is not the main ranking boost factor for your blog.

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HTTPS and Highest Security Policy

We are welcoming the HTTPS over the HTTP as we know Google adopting HTTPS as highest security policies for websites. Google pushing all website to switch HTTPS that will provide more secured websites than HTTP.

Now a day’s security is very important everywhere from personal to global interaction; we all are very much dependent and engaged with online data transfer system in every moment; but some time we are losing financially and socially due to unexpected hacking activities.   

Experts are saying HTTPS security policy will be helpful enough to tracking system, protecting- malware fooling, hacking, data tempering, address hiding and so on.

Benefits of HTTPS

Protection is the most important benefit from HTTPS; every piece of information is important, but when it is e-commerce or finance related then degree of protection is more expected.

Google said their newer version of HTTPS URL will ensure more data authenticity and confidentiality between contents publishers and viewers.  Google treated HTTPS as a cornerstone for internet security policy.

HTTPS will provide the benefits to both of blog authors and visitors by protecting stealing information, tracking authors-visitors activities, redirecting to a malicious location and changing any data sent from blogger to a blog visitors.

Custom domain BlogSpot blog also will get the HTTPS benefits shortly, we believe on that.

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WRITING AND PUBLISHING BLOG POST FROM MICROSOFT WORD

How Write and Publish Blog Post Using MS Word

Have you ever thought writing a blog post and published from Microsoft Word? Many of us may not know it, but yes! You can write a post in MS Word and then publish directly to your blog site.

Of course, you may write your posts in Word and then copy them into the blog post editor, but to do this obviously you face so many trouble to arrange the post contents.  The major limitation to copy-paste from MS Word, it’s not offers impressive graphics capabilities all the time.

Writing your blog post in MS Word and then posting to Blogger, WordPress, TypePad, Windows Live Spaces, and SharePoint you take many more advantages of image effects, charts, SmartArt and so on form MS Word. From image manipulation to “SmartArt” to sophisticated charts and graphs, Microsoft Word has a lot to offer.

How Set Up Your Blog Account with MS Word to Accept Posts

Don’t worry, just follow the following points step by step, this is maybe the first time you are using the blogging template, you will be presented with a dialogue box for you to set up a connection to your site. After register once, you will not need to do it again unless you decide to set up another site to publish. You can publish to multiple sites easily switch between them in the MS Word interface.

1. First of all open MS Word,

2. Select File or Office Button from left top corner of your window - New - Blog Post – Create (File > New > Blog post).

3. Microsoft Office should then prompt you to register your blog using blog provider name, user name and password. The information about username and password for your blogging account, is necessary to associate Microsoft Word to post to your blog account.

4. Then checkmark the XML-RPC box (In your blog’s admin area, go to Settings > Writing > Remote Publishing. Check the XML-RPC and click, Save Changes).

5. To link images from your account to your blog post click Picture Options button, otherwise you can insert your image from your computer

6. Click OK, you also ready to write and publish your blog from MS Word directly; because your registration is completed.  

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How Open an Account with a Blog Service Provider

If you don't have any blog account with a blog service provider; no problem, you can try one of the following providers to open an account easily.

•     Blogger Web address: http://www.blogger.com, follow the instructions on the home page to create your own blog. The service is free.
•      Telligent Community Web address: http://www.telligent.com, (formerly known as Community Server) Follow the instructions on the home page to purchase your own hosted community site, including blogs, forums, file sharing, photo sharing, and user management. The service is available on a tiered price structure.
•    WordPress Web address: http://www.wordpress.com, follow the instructions on the home page to create your own space. The service is free.
•      TypePad Web address: http://www.typepad.com, follow the instructions on the home page to purchase your own hosted blog site, including features that facilitate design, posting, Web integration, and community management. The service is available on a tiered price structure.
•          Windows SharePoint Services If your organization hosts a SharePoint site, ask the site manager to set up a blog page for you.

How Write a Method Statement for Your Company

METHOD STATEMENT for a Cable Installation Company WAZIPOINT

-presented (FOR INFORMATION)

-on SEPTEMBER 2015

-by WAZIPOINT

I. GENERAL

1. Project Description

Under the terms of Tender No.-, WAZIPOINT  as Contractor, together with our specialist Subcontractor(s), will be responsible for completing all design, engineering, procurement, transportation/delivery to site, installation, related civil, and pre-commissioning, commissioning, and performance testing for the whole laying and commissioning of 132kV underground HV cables.

2. Project Organization

WAZIPOINT shall have the sole and overall responsibility to the client for the execution and implementation of the project. WAZIPOINT’s Project Team will be located in Seoul and at the site of the Works.

WAZIPOINT will appoint Project Manager at its head office in Seoul, Korea, and site office will be responsible for the overall management, control, and supervision of the execution of the Project.

The Project Manager shall observe and supervise the execution and status of the Project. Depending on the situation of the Project they shall mobilize whatever additional human resources, materials, and equipment deemed necessary to complete the Project on time and in compliance with contracts quality and schedule demands.

WAZIPOINT’s Head Office shall be primarily engaged in the procurement of major overseas equipment and materials, with the arrangements for inspection, expedition, insurance, and transportation of such equipment and the financial arrangements and support for the Project.

The Head Office shall provide full support and backup to the Project Team for the successful implementation of the Project and as the case may require, shall mobilize its human resources to Bangladesh and /or the countries of origin of overseas equipment and materials suppliers.

The Project Manager shall be located in the project office and shall have the total commercial and technical responsibility of the Project and be responsible for the overall management of the Project.

The Project Manager shall, together with the Project Team and subcontractors; provide overall direction and control, ensuring that all the Project goals are met and any required corrective actions are initiated in a timely fashion.

The Project Manager shall serve as the focal point for the communication between the client and the Main Contractor and shall chair the weekly meetings, the monthly meetings, and any other meeting with the client and regularly report to the client on date progress of the Project.

The Site Manager shall supervise and instruct subcontractors for the design, engineering, (local) fabrication, civil works & installation, construction, pre-commissioning, and commissioning of the Project.

The Site Manager shall report to the Project Manager on the day-to-day progress of the Project and shall regularly chair the meetings and subcontractors to determine the latest status of the Project and, as necessary, direct appropriate action to maintain the project schedules and overall requirements.

Under the management of the Project Manager, the Project Team consists of:

Ø  Civil Engineer (Site Manager)

Ø  Electrical Engineer (Site Manager)

Ø  Safety Manager

Ø  Administration Manager

The Project Manager, Site Manager, and Manufacturers’ S/V are well experienced in this kind of full turnkey project and have proven track records of successful projects in the past.

A dedicated Project Team will be set up, under the authority of the client Project Manager, to implement the Work Scope for this Phase of the Project, in a safe and efficient manner.

All personnel assigned to the Project, on a full-time basis, will be located in dedicated Task Force Areas. Specialist subcontractors for Civil Works, Installation, Test & Commissioning, Cabling, etc. shall be appointed. Meetings shall be established, to maintain communication with the Project Team and with a client for this Phase of the Works, the Kick-off Meeting for Design & Construction.

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3. Design/Engineering

The in-house engineering team of main Contractor will extend the overall direction, supervision and control of all technical matters, ensuring that all the parameters of the dedicated design and engineering work will be strict compliance with the contract requirements and the conditions of the Contract.

 The Engineering Them will conduct the detailed design and engineering of the Project and produce the design and engineering drawings and data for the approval by client.

The Engineering Team may appoint its subcontract(s) for particular works such as CAD drawings or special calculation etc.

The Engineering Team will also have responsibility for verifying the technical specifications of the suppliers of major equipment and materials comply with the project requirements.

The Engineering Team together with the subcontractors shall obtain the permits related to the detailed design and installation from the concerned authorities required for the Project.

4. Procurement

(Insert Procurement Details)

5. As Build Documentation

After the completion of work on Site all installation documentation will be revised where necessary to show the equipment as installed, and will submit those to client as per Technical Requirements.

II. Cabling Works

6. Route Survey

(1) Design Basis

Client’s Tender Drawings showing the proposed route corridor for each of the cable routes will be considered as the basic route for survey purposes.

It is understood the corridor has been allocated by the Planning Department and reference co-ordinate/datum points would be provided to Power Projects.

(2) Preliminary Route Survey

A walk-over survey and route length measurement, by wheel, would be initially conducted and proposed route drawings/key plans prepared.

At key plants on the route such as major road crossings, conflicts, with existing utilities, change in direction, joint bay locations and ever 200m along the straight lengths, Power Projects CAD (Computer Aided Design) system where a route profile will be made.

The tranches would be proposed at distances not exceeding 200m along the route in straight stretches and at all critical locations as described above.

(3) Trial Trench Excavation and Detailed Route Survey

After completing the required road opening procedures for excavation of trial trenches, excavation and collection of all existing services data would be carried out and drawings prepared. Detailed survey would also be carried out at this stage including fixing co-ordinates of all critical points along the route.

Based on the survey, collected site data from trial trenches and information received from other service authorities, a detailed route drawing would be prepared. The detailed route drawing, including cross sections and typical details, would be submitted to all concerned departments for final approval.

Once route approval is attained, remaining road opening procedures leading to excavation and road crossing permission would then be completed.

7. Site Survey and Engineering

Information must be collected from various Authorities to achieve the clarities of cables.

(1) Trial Pits

Application for Road Opening must be forwarded to have the authorization to excavate. Request form will be collected, filled and then submitted to Client together with cable route drawings showing the trial pits location.

After been commented and approved through specific forms by the various Authorities, permits will be granted by Client, for a given period of time and trial pit excavation may start.

(2) Survey

Topographical survey works are to be excavated by a qualified surveyor, expected cable routes, implementation of the join bays and typical cross section of the cable trench and of the road crossings will then be plotted.

8. Shipment and Inland Transportation

All cable drum will be shipped using bulk cargo vessels, all accessories will be shipped in container vessels.

Our nominated local clearing agency will complete the formalities for port clearance and will carry out inland transportation. The drum handling procedures recommended by WAZIPOINT would be followed and low bed trailers will be used for inland transportation of cable drums.

9. Road Crossing (Trench-less or open cut method)

(1) Authorization

Before commencement of the works authorization must be obtained from engineer. For this purpose specific form should be used.

(2) Marking

Mark the outline of the rod cutting and arrange diversions by displaying sign and boards. Traffic police / authority may inspect the works beforehand. Road crossing might be done one half at a time.

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(3) Excavation For Road Crossing

Wearing course is cut with mechanical rotating wheel cutter or other method. Trench is excavated to the required depth and ducts are placed with blocking concrete at both ends plus center to keep the proper implementation and spacing in between the ducts during the concreting. Duct bell mouths orientation is to be determined prior to 500mm beyond the verge and the central reserve of existing roads and one meter in case of future roads.

(4) Concreting

Concreting is done with required materials.

(5) Filling

Filling up above the road crossing up to the required level with compacted soil backfill.

(6) Surface Treatment

Carry out the asphalt reinstatement surfacing as per drawing.

(7) Form

Specific form must be filled in during and after completion of the road crossing.

10. Trench Excavation

(1) Excavation

Excavation will progress as per the approved schedule and will start only after approval from the concerned Authorities.

Trench route is marked, as per the approved route plan.

Display traffic and sign boards as required.

Excavate manually to expose all existing utilities close to the cable route and across. Existing services will be protected and secured as per the requirements of the concerned utility authorities.

Cross check with drawing that all underground services are located; relevant Authorities can be called prior excavating as instructed in some cases.

Excavation I done by manual and/or with hydraulic excavator /rack breaker (expect at location close to existing service) and excavated materials are either put in hip or trucked to disposal are for further use.

The base of the excavated trench shall be leveled and all sides vertical to the dimensions shown on the drawing.

Excavation will continue and proceed to completion.

(2) Sand Bedding

After approval of the trench dimensions, filling or sand bedding in trenches shall commence. Prior to using dune sand, a sample must be taken from the batch and tested, thermal properties and moisture content. Approved dune sand will be brought to the site and spread manually in the trench with minimum thickness of 200mm as bedding to the cables.

Arrange inspection and report of sand bedding.

11. Concrete Work

Location of the join bays and link boxes shall be approved before commencement of the works.

Ready mix concrete will be used throughout. Chutes will be used for base slab pours.

Reinforcement will be cut and bent in the Contractor’s yard and sent to the site via transportation. All the steel reinforcement installation and protection work will be done in accordance with the drawing and specification.

12. Earthing Cable at Joint Bay

Earthing cables are laid after joint bay completion as per drawing.  Earthing resistance value is measured after sand bedding and recorded on a specific form.

13. EHV Cables are laid with manpower and /or winch

(Insert details manpower list)

14. Trench Filling

(1) Back-filling with sand above cables

Approved dune sand free of stones must be used.

After arrangement of cables, sand is installed up to 500mm measured from bottom of trench and top surface is leveled. During this operation, care must be taken for not scratching or damaging the outer sheath with sharp tool such as shovel.

(2) Laying of cable slabs

Slabs are placed in a yard and transported to site after curing well.

(3) Electrical test on outer sheath

This test is carried out for every section before backfilling over the cable slabs.

(4) Backfilling

Backfilling in the remainder of the trench is with selected material containing excavation. Any material which could be harmful is to be removed. Comparing single drum rollers to bring fill levels up as specified. At 300 mm above the cable slabs, warning tape is laid. The backfill material will be compacted layer by layer, 150mm thick.

(5) Trench reinstatement

All reinstatement shall be carried out as client specification.

(6) Route Markers

Route markers of approved designs to be installed at certain intervals as per requirement (road crossing, abrupt deviation, joint bays, etc..). The above works shall be inspected and recorded.

15. Pre-commissioning and commissioning

Upon complete laying, jointing and terminating each circuit, pre-commissioning and acceptance tests would be conducted duly witnessed by Client and other concerned agencies. The Project Manager, with assistance with the Testing Engineer and Technicians, will directly undertake this phase.

Again, as part of the QCP plans, Testing Method Statements and Procedures, Report Formats would be kept ready pre-approved as well as all required calibrated Test Equipment for the purpose. Upon completion of all acceptance tests at site after installation as per specifications requirements, commissioning of each circuit would be carried out in conjunction with Client departments based on detailed outage planning for existing circuits and load change over.

16.  As-Built Documentation

During the installation phase, changes to be approved drawings would be marked up and records kept for final compilation of as-built records. These site marked up records are used as the basis together with the accurately verified site data and as built records prepared for use by client.