warid general specification rev b (2)

Ericsson Internal

SITE SPECIFICATIONS 1 (39)Prepared (also subject responsible if other) No.

EBL/RO Ahsan Habib BBD-06:001157 UenApproved Checked Date Rev Reference

2006-12-05 PB1

GENERAL SITE SPECIFICATIONS

SOW

Issue Date Sheets ChangedRevision A 2006-05-17 -Revision B 2006-12-05 5, 7-8, 10, 12-15, 17, 22-24, 27, 30-32

Specification and SoW - WARID PROJECT

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CONTENT:

1 General Requirements.............................................................................32 SCOPE OF WORK..................................................................................33 GREENFIELD SITES...............................................................................34 ROOFTOP SITES....................................................................................35 TOWER OBSTRUCTION LIGHT SYSTEM.............................................36 LIGHTNING CONDUCTORS AND GROUNDING NETWORKS...........37 EQUIPMENT SHELTER..........................................................................38 OUTDOOR BTS SITES...........................................................................39 AIR CONDITIONING...............................................................................310 CABLE SUPPORTING SYSTEM.............................................................311 EXTERNAL ALARMS..............................................................................312 POWER SUPPLIES.................................................................................313 BOUNDARY WALL/FENCING.................................................................314 CABLE AND EQUIPMENT MARKING....................................................315 DOCUMENTATION.................................................................................316 Distribution List........................................................................................3

Annex:

A. Recommended Suppliers – Electrical

B. Recommended Suppliers – Civil Works

C. MATRIX : Split of responsibilities

D. Antenna loading 40 / 50 mtr

E. Antenna loading 60 mtr

F. Antenna loading 70 mtr

G. Model Site Drawings

H. General Grounding Drawings

I. Model Rooftop Site

J. Rooftop Grounding

K. Earth bar Detail.


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1 General Requirements

1.1 General

This document ( along with the site binder/site drawing) defines all work and material necessary to prepare, construct, manufacture, assemble, transport and complete the Civil Works for ‘Greenfield’, ‘Rooftop’, ‘Co-located’, BTS/BBone sites for GSM technology installation (BTS GSM antennas, MW antennas, etc.) to suit the requirements of the Customer in Bangladesh.

1.2 Specifications

Specifications are to comply with relevant National, American and European standards, laws and regulations, including amendments and changes, and to manufacturers/suppliers documentation. In all cases the highest specification shall apply, unless otherwise specified.

1.3 Units of measure

For all calculations, reports, measurements or similar only the (metric) international system of units (SI) will be acceptable.

1.4 Scope

The Scope of Works (SoW) for design, construction (civil work), Installation and commissioning includes all labour, supervision, materials, equipment, small tools, consumables, transport, overhead, etc., required to prepare, construct, manufacture, and erect wireless telecommunications sites, to support all equipment, antennas, cables and, required to meet the Specifications of ERICSSON and CUSTOMER.

1.5 Subcontract work

CW subcontractor provides complete work as described in this Scope of Work (SoW) – Detailed Design to be carried out by Design S/P. All Construction activities to be carried out by CW sub contractor. Generator sets and AC units which are to be delivered to site and fully commissioned by their suppliers. All activities will be monitored / supervised by Ericsson staff.

1.6 Method

The WORK is to be performed in accordance with DRAWINGS, SPECIFICATIONS and manuals as approved by ERICSSON and standard practices. (unless otherwise dictated in this document, or on site by site supervisors) The SUBCONTRACTOR shall produce the standard of workmanship necessary to implement the design. Any substitution of materials, member sizes, details, and procedures for those shown on the DRAWINGS strictly requires prior written approval of ERICSSON to be recognized.

1.7 Material Supplied by Ericsson

Ericsson will provide the following materials for this project. The Subcontractor will receive the Ericsson supplied materials at Ericsson’ local warehouse. The Sub-Contractor accepts to transport and deliver equipment to site in such a way as to prevent or minimise damage or loss,


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the Sub-contractor also accepts responsibility for supplied items by signing items list in presence of Ericsson staff at the time of collection.

Towers (see note*) Shelter Alarm System Roxtec Generators Air Conditioners All GSM Equipment/Antenna’s and ancillaries All Microwave Antennas and ancillaries

Note* Towers will be delivered complete with accessories as: climbing ladder, antenna supports, safety rail and anti-fall system cable supports, lightning rod, grounding bars, aircraft warning light system etc.

1.8 Material Supplied and Installed by Others.


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2 SCOPE OF WORK

ERICSSON agrees to carry out on Turnkey Basis which is Design, Supply, Install and Commissioning of the Telecoms Equipment and its associated system and also its Civil Works to support the Telecoms equipment for the CUSTOMER at various locations in Bangladesh. The Works consisting of the Engineering Procurement and Construction and Design of the following classes of works:

2.1 Scope of works for supply, construction and installation: (Rooftop Site)

Design and construction of Prefabricated equipment Shelters Design and construction of base support for resting shelter Grounding Supply and install earthing and lightning protection system Supply and Erection of MW and GSM support Indoor cable ladder External cable support Internal wiring and Air condition work Power connection from the authority Design, supply and installation of Back-up power supply system (generator) Installation, testing and commissioning of all telecom equipment

2.2 Scope of works for Supply, Construction and installation: (Greenfield Site)

Design and construction of complete site with Tower, Equipment room, Generator pad, and foundations for same

Grounding system Lightening Protection system Earthing system Power connection from the authority Design, supply and installation of Back-up power supply system (generator) Design, fabrication and installation of site boundary fence/wall External Cable support External site electrification Design, fabrication and installation of equipment room with all attendant facilities Installation, testing and commissioning of all telecom equipment


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3 GREENFIELD SITES

3.1.1 General Description

Greenfield site consists of Tower, Equipment Shelter, Generator placed in an enclosed site. For standard solution model site as per set of drawings ERICSSON XXXXX.

Model site drawings ERICSSONXXXXX layout and Elevation – refer to annex GModel site drawings ERICSSONXXXXX Grounding and Elevation– refer to annex H

3.1.2 SOIL TEST

The Soil Test and report is the responsibility of Design S/P. Based on the SOILTEST REPORT the tower foundation shall be designed. Design of foundation has to comply with soil conditions.The original soil test report and detailed design has to be submitted for approval as one package. Eventually this will be part of the final design documentation.

3.1.3 SITE KICK OFF MEETING

After receipt of the Site Binder, the Regional Manager is to arrange a Site Kick Off Meeting, the following parties are required to attend

Land Owner Site Acquisition CW Service Provider CW Team Leader CW Site Supervisor Telecoms Site Supervisor

The purpose of the K.O. Meeting is to view the Site Binder, mark out the site (with chalk, for the extents of the boundary wall and also the location of the tower foundations) – Once marked the above representatives will sign the K.O. Attendance sheet (Supplied in the Site Binder) to finalise/agree site layout – the CW SP is then to ‘break ground’ on the tower foundations and the site is considered to have begun Civil Works.

3.1.4 SITE PREPARATION

Pegging out the site according to site layout drawings, bush clearing, site levelling and compacting is the responsibility of the sub-contractor and checked by Ericsson Site Supervisor.

3.1.5 TOWER FOUNDATION/DEADMAN

The foundation shall be constructed in accordance with approved static calculations. Bearing base with permissible loading pressures defined in Euro–International standards, American concrete Institute standards and in accordance with fixed requirements including excavated materials, soil removal including soil deposit and refilling charges.


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3.1.6 CONCRETE FORM WORK

Forms, in plywood, timber or metal shall always be sufficiently rigid to support all poured concrete, without deformations or deviations from design measurements.

Surfaces shall be flat and without irregularities. Forms shall be sufficiently waterproof, to prevent significant water or cement grout loss during vibrations. Surfaces of forms may be treated with dismantling substances. Approved colourless mineral form oil, free of kerosene, shall be used.

3.1.7 REINFORCEMENT

Reinforcement shall be of deformed bars, dimension as required on the Drawings. Material shall meet local standards and requirements being in minimum of yield stress 275 MPa / 40 ksi (“ASTM specification A 615” and “Grade 40” designation with minimum yield strength of 40,000 psi/280 MPa). All reinforcement bars shall be cleaned of oil, dust or any other foreign matter, which may reduce concrete bond. Minimum reinforcement covers 50 mm of concrete. (Specific cover of concrete for sections and lap lengths have stated in Site Drawings)

3.1.8 CUTTING, BENDING AND PLACING

Cut and bend the reinforcement steel to approve schedule and details. On-site facilities for manual bending should be available.

Reinforcement shall be fixed to the forms in such manner as to prevent it from moving while concrete pouring and vibration. Provide as necessary to maintain the reinforcement in its correct position.

Bars shall have no oxidation or foreign substances on the surface, if necessary, they shall be cleaned appropriately.

Materials for concrete shall be specified and used according to local approved standards.

3.1.9 CONCRETE

Concrete strength 3 ksi (21MPa) is applicable for all foundations mix ratio 1: 1.5: 3 - cement, sand, gravel - unless higher class specified by supplier (i.e All structural pile –1.Tower foundation pile, 2.Shelter foundation pile, 3.Boundary wall pile 4.Tower foundation pile cap and 5.Tower foundation pedestal). And use concrete strength 2.5 ksi (17.5 MPa) for 1.Shelter foundation pile cap, 2.Shelter column, 3.Shelter Slab, 4.Shelter grade beam, 5.Boundary wall pile cap, 6. Boundary wall column and 6.Boundary wall grade beam. Curing should be continuous curing up to 7 days from casting.Cement shall be normal Portland (Ordinary Portland Type-I or Type-III), sulphate resistant or mixed type with standard specifications (Holcem, Scan, King); Water used in mixing concrete shall be clean and free from salinity, oil, acids, or other substances that may reduce the quality of concrete or steel. Coarse aggregates shall have a nominal size of 20mm down graded in size. Brick Chips must be 1st class and free from any foreign materials,


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screened and washed. Porous & over burned Brick Chips should be rejected. Stone Chips must be well round shaped and free from any foreign materials screened and washed. Stone Chips must not be shingle and free from weak black stones. Sand will be 1:1 mix of local sand (F.M. =1.2) and Sylhet sand (F.M. =2.5) for structural concrete (slabs, beams, columns and Sand must be free from any foreign materials, screened and washed.

3.1.9.1 FORMWORKFormwork should be strong enough, straight and water tight. Roof slab & beam bottom formwork shall be kept in place for at least 21 days after casting. To reduce shuttering removal duration admixture should be used as per direction of EIC.

3.1.9.2 WELDINGFor column extensions, new reinforcements shall be welded to the existing old reinforcement. Welding shall be done on both sides of the lap by completely filling up the groove. Length of the weld shall be at least 100mm on each side of lap for 16MM bars and 125mm for 20MM bars in column.

3.1.9.3 CAST-IN-SITU PILEUse Bentonite Slurry during boring for Pile. Use more than 3.0M (4.5-5M) casing pipe during casting and wash bored hole for minimum 15 min before concreting. Whole pile should be cast with out any rest. Minimum cement content for pile 350 Kg/Cum. Lapping of vertical reinforcement in pile 650mm. Spot welding @ 100 mm C/C. 1:1 Mix of Local sand (F.M.=1.2) and Sylhet sand (F.M.=2.5) for pile concrete.

3.1.10 COMPACTION

Compact concrete by vibrating. Compact the full depth fresh concrete to ensure full compaction and amalgamation with previous batches. Compact until air bubbles cease to appear. Compact concrete thoroughly around reinforcement, duct formers inserts, at construction joints in to corners of form-work. Compact reinforced concrete by vibration by plunger type vibrators.

Apply vibrators systematically at such intervals that the zones of influence overlap.

3.1.11 STRENGTH TEST

Preliminary test cubes: made with concrete taken from test mixes. Size 150x150x150 mm. Test results must be in compliance with design calculations. The tests must be performed 7 days after batching.

If the design value is not reached within this period, the foundation must be demolished and reconstructed. Nominally, on the 7th day the sample should reach 60%-70% of its design strength value. The testing authority shall test 3 test cubes 7 days and 3 at 28 days, for each type of mix.

Nominally, the test cubes must reach their design strength value as indicated below:

7th day: 60%-70% of design value: permission to start with tower.


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28th day: 90% of design value

Qualified personnel designated to supervise concrete work shall be on site at all times – during construction.

3.1.12 SITE AREA LIGHTING

Site illumination consists of one outdoor lamp located on internal compound wall at high level. 2 no. outdoor florescent fittings, above genset plinth, weatherproof Switch is to be located on internal wall situated close to main gate entry point.

3.1.13 SITE AREA TOP FINISHING

Compressed original topsoil, finished at stated EGL shall be used. Walkways/pathways/vehicle access and parking areas within the compound shall be suitably brick paved with curbing and drainage. All other areas are to be levelled by 50mm brick chips covered the whole area up to 100mm height.

3.1.14 ACCESS ROAD

Site Access Road only on request as determined during TSS. Site Access Road rate is optional.Sub-contractor shall submit proposed detail drawing and quote of the full access road to Ericsson for customer approval.

The road shall be dimensioned for access of 7 ton vehicles; including proper structural layer and drainage. Minimum width of road surface: 3m. Road to be protected from sliding, rocks and other debris.


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4 ROOFTOP SITES

Roof Top sites prinicipally consist of 2 types – either with a Stubtower or independent and single antenna poles. Always included is: Equipment Shelter-(or ODU), Generator (s), Fuel tank (s). fenced area if required and so determined during TSS. For standard solution model site as per set of drawings

Model site drawings ERICSSON XXXXXX layout and Elevation – refer to annex I.Model site drawings ERICSSON XXXXXX Grounding and Elevation-refer to annex. J.

Included are all works related to necessary roof preparation for stubtower installation. From 6 m antenna poles to stub-tower (tower heights of 12m,15m to 20 m) and including possible improvement to surface quality, to reinforcement, to strengthen roof construction, to the overall structure, to remove existing walls, to add columns or beams or to perform other comparable adjustments to ensure safe erection and support for tower, foundations, generator, shelter etc..

Safety and security measures such as installation of handrails, stairs, platforms, fences, determined during TSS or become necessary otherwise.

Necessary antenna stub towers/poles (MW and GSM) as specified - see separate Chapter Antenna poles.Conductor and grounding network as specified – see separate Chapter - Lightning Protection and Grounding NetworkOuter cable support system as specified - see separate Chapter - Cable Supporting System.After site finishing the site surroundings have be to restored and all provisions necessary for the installation process shall be removed.Foundations for tower, shelter, generator, fuel tank etc. shall be made of steel frame or concrete supports, as specified at TSS in accordance with standard Design Drawings

4.1.1 Rooftop Antenna Supports Antenna mounting poles

Pole for tower / wall mount (recommended height approximately 3m) and Self supporting pole (recommended height 6m poles across the network) shall be considered

4.1.1 Self Supporting Towers on roof (4 legged)Self supporting Towers are required to be designed following Bangladesh National Building Code (BNBC) standards. Most commonly wind speeds are up to 260km/hr in coastal regions while the rest of the country at 210km/hr with some exceptions, with some places having up to 180 km/hr wind speed zones; it is Ericsson preferred solution to have a unique design for two types of towers (260 km/hr & 210 km/hr). The following are the preferred tower types with estimated minimum antenna loading to maintain the design uniformity and implementation are commended –

Self supporting tower on roof 12 m high for at least 3 GSM & 3 MW antennas (dish diameter 0.6m)Self supporting tower on roof 15 m high for at least 3 GSM & 3 MW antennas (dish diameter 0.6m)Self supporting tower on roof 20 m high for at least 3 GSM & 3 MW antennas (dish diameter 1.2m)


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GREENFIELD TOWERS

1. Greenfield Antenna Supports

• Self Supporting Towers for Green Field Sites - Self supporting Towers are required

to be designed following Bangladesh National Building Code (BNBC) standards and BS-8100 part 1-3 . The most common wind speeds are 260km/hr in coastal regions while the rest of the country is 210km/hr.

The tower shall be four legged and angular. The allowable tensile strength to be used shall be between 207Mpa (30ksi) to 345Mpa (50ksi) hot rolled section and 400MPa and 275 MPa. Leg to leg distance for 60m tower shall be 8500mm, for 50m tower shall be 7300mm, for 42m tower shall be 5600m and for 32m tower shall be 4500m. Leg to leg distance at the top straight portion of the tower shall be 2.0m. Neck height of all towers will be 6.0m. All tower legs shall have grounding holes located near the base for connection to site grounding system.

The antenna loading is attached for each of the following towers (also attached with this document):-

o Self supporting tower 32 m high o Self supporting tower 42 m high o Self supporting tower 50 m high o Self supporting tower 60 m high o Self supporting tower 75 m high

3. Tower Accessories

3.1. BTS and MW antenna mounting brackets shall be supplied corresponding to number of design antennas.

3.2. Resting and working platforms are according to tower profile shown below. 3 working platform and 1 resting platform.

3.3. Obstruction Light System shall be 1 unit at the top most for all towers. Add another unit at mid-height for 32, 42, 50 and 60 meter Towers. Include photocell and control panel. The intensity of the illumination shall be not less than 10 candelas of red light.

3.4 Tower Warranty - All towers shall be warranted by BUET, a fifteen (15) year warranty against structural defects.

3.5 Access ladder shall be 450mm wide with 20mm round bar steps at 300mm interval. Main vertical member shall be C4X5.4 channel bar.

3.6 Vertical Cable Ladder shall be 600mm wide with 2” x 3/16” thick flatbar steps at 500mm interval. Main vertical member shall be 2-½” X 2-½” X ¼” angle bar.


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3.7 Waveguide Bridge Ladder connecting tower vertical cable ladder to cabin feed thru plate shall be 600mm wide, approximate length shall be six (6) meter, with 2” x 3/16” thick flatbar steps at 500mm interval. Main vertical member shall be 2-½” X 2-½” X ¼” angle bar.

3.8. Anchor bolt setting template to be provided one (1) set for every two (2) units of tower for each height.

4. Other Design Parameters 4.1. Deflection : The tower tilt and twist shall not exceed 1 degree 4.2. Design Codes : Latticed Tower -BS 8100 Part 1-3 4.3. Material Codes : Steel Works -BS 4360

Galvanising -BS 729 Bolts & Nuts -BS 4190, BS 3692 & BS 4320 Welding -BS 5135

4.4 Safety Factors in Design : : Partial Safety Factors for wind speed, γv =1.15 : Partial Safety Factors for dead load, γDL =1.10 (when dead load effects increase wind load effects). =0.90(when dead loads reduce wind load effects). : Wind Speed = 210 km/hr and 260 km/hr : Wind Direction Factor, Kd = 1.00 : Terrain Category = 4 : Structure is to be considered as Untested Class A structure : Partial Safety Factor on Design Strength (both member and bolt) γm =1.10

5. Required Test Certificates Main copy of all the required test certificates from the manufacturer should be provided 6. Grounding Grounding of the tower leg and installation of the lightning arrestor will be provided. Cabling up to the FMS panel from the aviation light should also be provided. 7. Antenna number and height (Where SP has put the antennas)

Antenna given by SP

Sl. No.

Tower Height (m)

Wind Speed (Km/hr)

(Antenna Number - Antenna Type - Antenna Height (m)

11 SST - 42m 210 6-GSM-35, 6-1.8-33, 4-1.2-30, 4-0.6-25

12 SST - 42m 260


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13 SST - 50m 210 6-GSM-45, 6-1.8-30, 4-1.2-35, 4-0.6-25

14 SST - 50m 260 6-GSM-45, 6-1.8-30, 4-1.2-35, 4-0.6-25

15 SST - 60m 2106-GSM-60, 3-3.0-57, 3-3.0-47, 4-1.2-35, 6-1.8-30, 4-0.6-25

16 SST - 60m 2606-GSM-60, 3-3.0m-57, 3-3.0m-47, 4-1.2m-35, 6-1.8m-30, 4-0.6m-25

17 SST - 75m 2106-GSM-75,3-3.0-72,3-3.0-62,4-1.8-30,2-1.8-32,4-1.2-35,4-0.6-25

18 SST - 75m 260

4.1.5 GSM Antenna Poles

The GSM antenna poles have to be built in accordance to the site cell description, and the antenna type used. The horizontal and vertical distances, in accordance of the radiation diagram (the free angle) and the needed free space of the used antenna type shall be observed. Delivery of both Stub-towers and Antenna poles shall include installation of all essentials such as ladder with an anti-fall system according to safety regulations and their amendments applicable in Bangladesh, anti-climb device (for stub-towers only), cable rail brackets, etc.Installed climbing steps (for poles exceeding 5 m above the roof ladder shall end approximately 0.5 m under the upper GSM antenna fixation point.

4.1.2 Tower

Design of the tower shall be done with load of wind speed 43m/sec. Calculation for twist and sway of the towers for 70% of wind speed load shall be less than 0.45deg.Towers are equipped with climbing ladder and approved anti-fall system for personal climbing and working on the tower. Safety regulations and their amendments applicable in Bangladesh have to be observed. Pls refer to annex 3.1All steel structures must be hot dip galvanized with a minimum thickness of 90 micron.During Tower erection all relevant safety standards and precautions have to be adhered to, the subcontractor is oblidged to have proper tools as well as safety equipment – harnesses, shoes, helmets etc. in sufficient quantities availlable to allow for proper and professional workmanship.The recommended torque values for assembly bolts are as follows and are valid for all steel towers:

M16 M20 M24 M30197 385 665 1310 Nm


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4.1.3 Tower Painting:

The color should be Red & White of BERGER brand.

Paint the tower by using a painting based on a PVC-acryl resin combination binder, containing solvents and mica fillers. The surface should be clean and free of dirt, oil, fat and other contamination.

Method of application: brush or roller, two coats x 80 m SIKA Icosit 6630 HS or similar with min. one day waiting time between the two coats.

Beginning at top of tower, paint Red, then white continuing equally down the tower. Basically for green tower is seven (7) bands, 12-15m Tower is three (3) equal band and 20m & >20m will be four (4) equal band.)


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5 TOWER OBSTRUCTION LIGHT SYSTEM

One unit Single Light with built-in day/night controller (medium intensity) to be installed at topmost position – opposite corner of the Lightning rod.

Valid for every lattice tower, irrespective of height and type.

Lattice towers: The built-in photo detector shall be facing the rising sun.

The OB light control unit (AWCP) is to be placed inside shelter on the left hand side of shelter entry.

Note: Light bulbs supplied will be of heavy duty type 10.000 hours lifespanConnections for aforementioned devices are as per diagram of vendor.

Single / twin OB light

Cabling/power for the lights is to run from the Mdb in the Equipment Shelter via internal Cable support through the Roxtec cable entry port and onto the external cable ladder.

UPVC pipe (25sq mm) is to be used on the cable ladder securely attached to the appropriate side of the ladder and ending at the tower.

The cable is then to continue up the tower leg (securely fastened at 2m min intervals with Black Tie Rap) to the OB lights.


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6 LIGHTNING CONDUCTORS AND GROUNDING NETWORKS

6.1 Lightening Protection

All towers shall have a lightning rod mounted directly at the topmost location of the steel structure. The Lightening Finial down conductor shall be insulated 50mm (sq) (GY) copper cable, securely fastened to the same tower leg, over which the lightening rod is placed.

The conductor shall be clamped every 2 metres, and shall have no bends, kinks or changes of direction except at the tower base where it passes to the grounding ring / earth pit.

Each tower base shall be connected via a 50 sq mm insulated copper cable (GY) to the tower grounding ring.

6.2 Greenfield Sites – Grounding System

Principally comprising of three grounding systems all inter-connected: refer to Annex H.

6.2.1 Grounding Ring around tower,

Shall be connected to tower structure and grounding pit.

The Tower grounding ring consists of a 50 sq mm bare copper cable, buried to a minimum 500mm depth surrounding the tower. Distance to the tower legs should be not more than 2m. The grounding ring shall be connected to one grounding rod/pit.Position of this grounding pit shall be as shown on the relevant site drawing.

6.2.2 Grounding for the shelter,

Will be connected to the main grounding bar outside the shelter aircon compressors, ATS/MTS cabinet and all cable ladder supports are also to be connected to grounding bar.

Position of this grounding pit shall be as shown on the relevant site drawing.

Shelter internal grounding ring shall be connected to the main grounding bar outside the shelter.

All internal equipment and connection points of the antistatic floor shall be connected to the internal grounding ring – insulated copper cable 35 sqmm GY, situated at floor level and fastened direct to the floor.

The internal grounding bar is part of the internal grounding ring.

Connections to the internal grounding ring shall be made by correct sized copper C- clamp type compression joint(s) – if not available bolted copper T connectors are acceptable.


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6.2.3 Grounding around the Generator

Will be connected to the main grounding bar adjacent the Generator and to the shelter grounding ring also, generator(s), fuel tank(s) will be connected to the grounding bars.

Grounding bars will be connected to the Grounding/Test pit, as per site drawing.

Position of this grounding pit shall be as shown on the relevant site drawing.

6.3 Grounding test/Inspection Pit – 3 number

A grounding pit is a concrete box approx. 600 x 300 mm with lid. The top of the box e.g. lid should be min. 300 mm above final surface. The incoming grounding conductor is then connected to the grounding rod - by means of suitable connectors. For testing purposes the connection can temporarily be opened.

All buried (min 700 mm deep) grounding cables shall be of 50 sq mm bare copper.All other visible grounding cables shall be of 35 sq mm insulated copper GYThe ground resistance required should be 5 Ohm or less.

Additionally 4 number 5/8” diameter copper rods (3m long) shall be hammered into the ground and connected to each Dead man and the tower grounding ring (See detailed grounding and earthing drawing for locations)

Tiles brand and code for brick shelter Floor Tiles – RAK 7GP128G Wall Tiles – Fu Wang 23259


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6.4 Rooftop Sites Annex J

Grounding Ring around the shelter will be connected to the main grounding bar outside of shelter to the shelter base, to aircon compressors, to ATS cabinet, to all cable ladder supports, generator and fuel tank. All grounding cables shall be 35 sqmm insulated copper wire GY.

This grounding system shall be merged with the grounding cable coming from the tower foot – by using a correct sized Copper C type compression joint. IMPORTANT: This joint must be placed at the point where the grounding cable from the tower foot is leaving the rooftop e.g. begin of the vertical down run to the grounding rod/pit.In case this is not possible the minimum distance of this joint to any equipment shall be not less than 2000 mm..

A test pit shall be constructed at a suitable location decided during TSS

6.5 Feeder Grounding

Feeder runs longer than 25 m are to be grounded at two points: (Earth Bars)

Near the bend at the Cable ladder height on the tower and on the Shelter – to a bus bar and directly bolted to the grounded shelter wall below the Roxtec Cable entry point.

Grounding bars (Earth Bars): Lattice towers: grounding bars have to be installed, with insulators, onto the bracket supporting the cable attachment, behind the feeders outside and connected to the ground ring around the shelter.

An additional grounding bar is to be located within 7m of the top of the tower and connected to the Lightening Down Conductor.

Grounding bars are always made of copper - fully tinned.

Grounding bars shall be provided to accommodate 14 connection points; all connections will be via 8mm nut/bolt (M8). (Nuts and bolts are to be supplied by the Sub-contractor) refer to Annex K.


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7 EQUIPMENT SHELTER

The standard shelter for technology equipment shall be used for BTS sites is a prefabricated structure complete with all necessary equipment:

Cable Entry System (ROXTEC) installation frame, including Roxtec seal and frame on both inside and outside.

Power Supply Distribution Board – 4 pole 63 amp (Legrand) or equivalent

Air condition Split units - two split type A/C (18000 BTU capacity), with time relay switch (One A/C will work at a time). Butterfly.

FMS Panel – to control and monitor correct functioning of the AC units

DDF Alarm panel

Smoke Detector – I.B.M.S (FMS)

Obstruction light control panel - Supplied with tower

Cable ladder / cable trays etc. – Supplied from shelter manufacturer

Shelters shall be delivered to sites as a flat pack version (from central warehouse) to be assembled on site (flat pack) or assembled from supplier.

The shelter shall be fixed to the foundations on each corner.

Grounding points located at the front of the shelter shall be connected to the external grounding system

The shelter shall be without damages (scratches, indents, corrosion)

Shelter floor shall be levelled with max. Tolerated incline of 5mm/m.

Shelters supplied for all site types (with correct equipment placing) (6 equipment places): For details see annex 01 – shelter specification and layout drawings. SHELTER ACCESSORIESIf required the shelter shall be painted asfollows: Inside paint shall be Brilliant White (Plastic Paint), outside the same Brilliant White (Durocem).

Shelter shall be provided with additional equipment as follows:

Fire extinguisher 5 kg, Medium ABC


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8 OUTDOOR BTS SITES

Certain Sites as notified by CUSTOMER will use Outdoor BTS equipment.

Ericsson is to supply a weatherproofed enclosure unit for the install of PDB and a method of support to be placed as per position shown on drawing.

Standard MDB’s is to be installed inside the weatherproof enclosure.

Glands are to be installed in the base of the unit (for power distribution)

Equipment is to be covered from severe elements by a corrugated steel roofed structure mounted on GI poles securely fastened to the Equipment floor slab, (see drawings).

To prevent pooling of water on the roof a min 1% slope is to be made.


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2006-12-05 PB1

9 AIR CONDITIONING

Shelter shall be equipped with Split unit’s capacity 18.000 BTU each – operating in 6 -hours stand-by system. (Acceptable suppliers are York and Butterfly)

Split units are supplied and installed by the supplier for split units.

The SUBCONTRACTOR is responsible to notify the Air conditioning supplier in good time for start of works.

The system is connected to a Sequence controller (SQ) positioned inside the IBMS (FMS) panel.The SQ shall be set to keep the temp. of 22C. In case of overheating alarm HIGH TEMP is being emitted – in case of failure the respective alarm AIRCON FAILURE will be emitted. Temperatures e.g. alarm triggering values can be chosen e.g. programmed.Presently HIGH TEMP will be triggered at 30C.

In case of failure of SQ (major fault) bypass switches are to be provided for manual bypass of the SQ to ensure cooling is provided.

The Air conditioning supplier shall provide complete installation and commissioning including connection to AC MDB board inside the shelter.


Ericsson Internal



2006-12-05 PB1

10 CABLE SUPPORTING SYSTEM

10.1 Indoor Cable Supports

Cable supports will come as part of the shelter delivery either with cable trays attached straight to ceiling or cable ladders suspended from the ceiling depending of type of shelter.

GSM and MW antenna cable entries in shelter wall shall be equipped with Roxtec installation frame including Roxtec seal.

10.2 Outdoor Cable Supports – Cable Ladder

Communication cables from Shelter to Tower must be supported by cable ladders, normally running at height of approx. 2500 mm. Cable ladders shall have no contact with the shelter, a gap of min. 30 mm is recommended. The first support shall be installed max. 300 mm from the shelter (Roxtec).

Supports and cable ladders shall be of heavy duty design and structure.

Minimum requirements:Steel - hot dip galvanized minimum thickness of coat 90 micron.No sharp edgesInner width: 400 mmheight min. 50 mmmax. length between rungs: 300 mmMinimum width of individual rung 25 mm

Cable ladders shall be supported at max. intervals of 2500 mm.

Bolted structure assemblies are recommended. Welded structures are acceptable to providing welding seams are of good quality.

Two legged supports are preferred to single supports however any instability or even movement will not be acceptable.

All cables must be properly attached with supporting clips provided by Contractor. BTS equipment and feeder cable support clips are provided by equipment installer.

Minimum cable bend radius shall be according to supplier’s recommendations

Supply of cable ladders, with all accessories, brackets, hangers, supports, covers etc. as required for complete installation and are within full responsibility of the SUBCONTRACTOR.


Ericsson Internal



2006-12-05 PB1

11 EXTERNAL ALARMS

The table below shows alarms that are typically included with the radio equipment.Alarm will be connected to the alarm signaller or DDF (Krone included in shelted delivery).The Construction Subcontractor will install the Krone block and will connect the alarm systems and activate them.Alarms shall be connected as a Dry Contact normally closed (NC).The Krone block sends alarm signals from the site to the operations centre using BTS equipment.The Subcontractor shall test all alarms towards the Krone block.Table A: Typical Alarms

Alarm Type Alarm Sensor Field Definition Krone block

Fire Alarm Smoke Detetector Fire Alarm 01-06-a & bShelter access Door / lock contact Shelter access 01-05- a & b

High Temperature Thermostat High Temperature 01-04-a & bAC Power Supply Failure

DC Power Plant AC Power supply Failure 01-09-a & b

Rectifier Alarm DC plant Rectifier Alarm 02-00-a & bGenerator Running Genset Generator Running 01-00-a & bOBS Light Failure OBS Light DB OBS Light Failure 01-03-a & bWater failure Water sensor Water Sensor Failurer 01-08-a & bGenerator Low Fuel Generator Fuel Level Generator 01-01-a & bGenset Failure Generator Generator 01-02-a & bHigh Humidity Humidity Sensor Environment 01-07-a & bSpare 02-01-a & bSpare 02-02-a & bSpare 02-03-a & bSpare 02-04-a & bSpare 02-05-a & bSpare 02-06-a & bSpare 02-07-a & bSpare 02-08-a & bSpare 02-09-a & b

Smoke Detector: To be installed by the CW Subcontractor – 12 V supply is to be taken from AC Sequence controller. For alarm cable 2 x 1.5 sq mm is recommended.


Ericsson Internal



2006-12-05 PB1

12 POWER SUPPLIES

During design stage application for commercial power supply shall be submitted to the relevant authority, requirements are as follows:

Back bone / co-located sites; 2 X 40 KVAPDH/SDH/ HUB sites ; 2 X 25 KVAG/F BTS sites ; 1 X 25 KVAR/T /BTS/ HUB sites ; 1 X 25 KVAStand alone BTS sites; has Genset facility, which will be confirmed by the REC.

The position of the KWh meter will be determined during TSS.

12.1 Generator installation:

In event of significant voltage fluctuations or total failure of commercial power the generator set will start automatically after three minutes to power the site without interruption – controlled by an Automatic Transfer Switch, the ATS ( with MTS facility).Upon return of commercial the ATS measures the voltage and – if stable – turns off the generator and continues to supply the site with commercial power.Change over from one supply to the other is always delayed by three minutes thus protecting the air con compressors; however the settings may be adjusted if required.

The ATS/MTS is housed in an outdoor enclosure, (see site drawing) usually outside the equipment shelter.The cabinet also includes a 5 pin 3 Phase 63 A Ceecon socket, both male/female to allow for detachable connection to another power supply source – example a external rental genset – to stand by and support the site during generator service periods.

A built in selector switch allows to choose between either commercial power as supply source and external generator.

ATS on sites principally equipped with TWO generator sets include another selector switch to choose between either genset A or B. As an optional this can be determined automatically.


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2006-12-05 PB1

12.2Generator DescriptionSummary:Manufacturer: Pramac/Mason by Rahimafroz/GreenpowerTypes: 30KVA - 45KVA

Weatherproof / acoustic canopy designed for 75 dBA at 7 mAdditional inbuilt vibration dampers – near 100 % dampingVariable load should not exceed 80 % average of of prime power rating duringany operation period of 250 hours.Oil changes every 225 – 250 hrs.Full technical specification as per Manual

Ericsson will install one Genset at every CRITICAL-BTS/RT site as permanent stand by solution to ensure continued site operation – in case of failure of commercial power supply.

Every site with insufficient capacity of the fixed power supply will be upgraded by the local power authority – the applications and whole process is handled by Ericsson.

During the entire period of upgrading Ericsson will supply power using a temporary second Genset (on wheels) connected via changeover switch and “5 pin 32 A CEE male/female plug” directly to the AC mains.

Only at service intervals - every 250 hours - the permanent Genset will be used for the duration of the service – max. 3 hours. For further details pls refer to complete genset specification.

Phase 1: Genset information:

All BTS Hub sites sites in city area with permanent power available already or in the

near future (< 12 months): are to receive 1 x 25 KVA permanent genset with 1 x fuel tank 150 liter. All Critical BTS Rooftop Sites are to receive 1 x 25 KVA permanent genset with 1 x fuel tank 150 liter. All HUB Rooftop sites are to receive 1 x 25 KVA permanent genset with 1 x fuel tank 150 liter. All HUB greenfield sites are to receive 2 x 25 KVA permanent genset with 1 x fuel tank 300 liter. All BSC sites are to receive 2 x 40 KVA permanent genset with 1 x fuel tank 300 liter. All backbone and BTS /co-located sites are to receive 2 x 40 KVA permanent

genset with x fuel tank 300 liter

Weights – approx:

25 KVA genset: 900 kg plus Canopy 700 kg40 KVA genset: 1200 kg plus Canopy 1200 kg


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2006-12-05 PB1

Fuel tank 150 Liter: 100 kg; 300 Liter: 200 kg;

Recommended size for foundations: (W x L ) in mm

25 KVA genset: 1120 x 220040 KVA genset: 1120 x 2200

For Fuel tanks: (W x L) in mm

500 Lt : 600 x 1100 x 9001000 Lt : 600 x 2200 x 900

Recommended elevation at GF sites: 250 mm above final site level ground levelImportant also: Both units – fuel tank and genset should always be at thesame (elevation.

Formation of Genset and fuel tank always

The distance between fuel tank and genset should not exceed 2500 mm

ATS panel with mechanical change over switch: 600 x 400 mm

12.3 Voltage Stabiliser

To compensate voltage fluctuations Ericsson will install 1no.Voltage Stabilizer e.g. Automatic Voltage Regulators (AVR):

Input: 120 – 280 V

Output: 220V / +/- 3%

Response time: within 0,3 second against 10 % voltage deviation

Rating: 8 KVA + for ACU 1 / ACU 2.

The AVR shall be wired as follows:

KWh meter – PIB – AVR – ATS/MTS – MDB – FMS – ACU1/ACU2

The external light is to be controlled from a switch mounted on the inside wall right hand side of the main gate.

The Plinth lighting is to be controlled by a switch, located at the top of the stairs on the right hand side.

12.3.1 Installation guidelines


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2006-12-05 PB1

Electrical installation on roof top sites (outside of shelter)

For grounding wire/grounding cable only: PVC pipes on roofs are not permitted.

GI pipe of suitable diameter has to be used – diameter size approx. 10% more than the cable to allow for easy installation without damaging the cable

Open installation is permitted, meaning the use of elbows for corners is not necessary, however the open part should be kept to the essential minimum which is determined by the cable size. Flexible tubing is not permitted.

Installing pipes on floors in walking areas is not permitted either as long as alternative routes are available – even if they are longer. Pipes in areas – likely to be touched and damaged by foot are not permitted.Pipe must be finished off without sharp edges and has to be sealed with silicon.

Saddles must be the two screw type, of correct size and same material. (Galvanized saddles only)

Proper crimping is required, preferably hexagonal compression.Taping of crimped connections is not permitted

Only one pipe a time - two or more pipes in parallel are not permitted.

Instead of two or more pipes running parallel metal DUCTING – galvanized quality - appprox. 40 x 40 mm with lid shall be used.

For all power cables on the roof: The same metal DUCTING shall be used, strictly closed installation with corners, bends, internal, external elbows, risers and downers.

The ducts have to be mounted on distance shims made of Neoprene or similar. Size of Neoprene: Width of ducting plus 50 mm to allow 25 mm for screws (attachment to the bottom) on either side. Thickness: min: 10 - 15 mm. Example: For ducting 45 mm width the Neoprene would be 90 x 20 (width of saddle) x 15 (thickness).

Installing ducting or pipes across walking areas is not permitted as long as alternative routing is available – even if they are longer. Ducting in areas – likely to be touched and damaged by foot is not permitted.

See also sample photographs as follows:


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2006-12-05 PB1

EXCEPTION: Ducting is not permitted for Power cable installed onto the buildings façade – running down to the KWh meter. Here the power cable must be protected by UV resistant PVC pipe – NOT GI pipe, closed installation – HDPE pipe is preferred but only if freely obtainable. However the first 3m above ground level is to be Galvanised GI pipe.

For grounding cable/wires running down to grounding rods NO protection pipe is required. Both the power cable and grounding have to be protected additionally with a metal cover from ground level to a height of 3000 mm.Recommended minimum distance between power and communication cable is 300 mm.Unjustified deviations from these aforementioned rules are not acceptable and will have to be removed – in case of doubt the Ericsson Supervisor should be called for advice.Tie wraps for outdoor use must be UV resistant, heavy duty type, normally of black colour.

12.4 Equipment Shelter:

Important: Prior to assembling any Shelter the first step must be the material check. Comparing the packing list with actual delivery – item by item, in the presence of Ericsson Site Supervisor.

For cable attachment to cable tray Tie wraps shall be used – preferably of same colour – white; with identical and even spacing of course. Unnecessary drilling into walls is not permitted– if that has happened they have to be made invisible.

If the material supplied with the shelter is not suitable for the aforementioned task the subcontractor has to supply whatever is needed to deliver a proper installation.


Ericsson Internal



2006-12-05 PB1

13 BOUNDARY WALL/FENCING

Greenfield sites are principally protected and surrounded by boundary walls.Ericsson proposes Block wall 125 mm thickness, 2000 mm high, based on concrete foundation and front side boundary wall is 250 mm thick.

Alternatively a very similar design is available; here instead of block wall only, sections of the boundary wall receive a steel frame with wire mesh barbed wire.Minimum 4 mm or 5 mm ø. grid approx. 50x50 mm

It shall be decided during TSS which type of boundary wall to include to aesthetically suit the surroundings.

The wall is secured with three strings of barbed wire attached to vertically mounted, inward tilted, angle irons on top of the wall to prevent climbing over the wall.

Entrance is provided by a two winged gate – each wing 1500 wide thus bringing the total gate to a width of 3000 mm. Please refer to drawings (Sheet 11 of Annex G).

The gate is secured by vertical and horizontal slide bolt. Subcontractor to provide high quality pad lock, with three keys.

All steel parts are to be quality hot dip galvanized minimum coating 90 micron.COLOUR CODE: All components other than Steel (concrete, brick- and block material) shall receive two coats of either a) ICI Weather shield Acrylic Exterior wall finish; code 2683 ANTELOPE or Berger Paint Economy Emulsion code 3870 SANDSTONE whichever brand is available on the market. Boundary wall will be French gray of Berger (weather coat).Wire mesh, barbed wire and brackets are not to be painted – galvanized coat of 90 micron is sufficient. Steel gate is to receive Middle 1/3 of gate front will be signal red (synthetic enamel) paint of berger and another 2/3 portion of the front gate and the whole inner side of the gate will be traffic blue (synthetic enamel) paint of berger.

13.1 Fence for RooftopSites

Optional: The level of site security shall be decided during TSS.

Minimum requirements: Protect personnel from falling and falling objects, removing sharp objects and protecting personnel from electrocution.Existing structures need to be evaluated and possibly replaced.

See possible solutions as below - ROOFTOP SAFETY


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2006-12-05 PB1

An accepted safety handrail will have the following approximate characteristics:Height 1100mmTop rail and mid-height railCapable of sustaining point load of 90kg at any point and any directionExisting handrails, safety cages, cat ladders, covers, etc. on site or along the site access route will be replaced whenever found necessary.Padlocks are to be provided (each with 3 keys, and total 6 ‘master’ keys = Total 15 keys) one for the main gate, one for the Generator room and one for the Equipment shelter.


Ericsson Internal



2006-12-05 PB1

14 CABLE AND EQUIPMENT MARKING

Equipment installed in the shelter shall be marked according to the installation manual from the shelter supplier and enclosed guideline.

Power cables and Light circuit cables shall be marked in both ends with a weather proof marking system.

Cables shall be marked on both side of cable entry.

MDB breakers are to be labeled with circuit name – a sheet showing the connectivity and the circuit ratings is to be provided on the back of the door.

Please refer to specification drawing with samples:


Ericsson Internal



2006-12-05 PB1

15 DOCUMENTATION

Generally the site documentation shall be divided 3 main following parts:

Basic Documentation – disposition layout and side-viewsRFI DocumentationAS-BUILT Documentation

15.1 Basic Documentation

Basic Documentation shall be based on Site Survey Report.

This documentation describes disposition of – Shelter, Diesel-Generator, cable ladders, base frames, access ladders, etc.

THE DOCUMENTATION (Site Binder) SHALL INCLUDE:

Site Acquisition ReportSoil ReportTechnical Site Survey ReportCopy of LeaseStandard Drawing Design PackageProposed BOQ’s

15.2 RFTI Documentation

RFTI Documentation describes detailed red-lined authorised changes from standard design package. Also ‘on-site’ checklist for partial handover.

15.3 As-Built Documentation

AS-BUILT Documentation describes detailed solution of construction of the site as built.

Following documentation shall be delivered in 7 days in a folder according.

Documentation folder also includes the photographs of all the parts of the site clearly marked with site ID and a date.


Ericsson Internal



2006-12-05 PB1

Annex A

Recommended suppliers – Electrical

Sl No Items Specification

1 A/C Butterfly,

2 LightTech advance Reflector type, 2(philips) tube in one set

3 Security Light Legrand

4 Emergency Light Sunca (Malaysia), Philips

5 AVRNewtech ,Green power, Grameen bitech Vanstab

6Electrical Switch ( 2pin, 3pin)

Legrand

7 Channel for Wiring Aziz PVC ( 4* 6 cm) / Abdul

8Electrical Wire ( 2.5rm,16 rm etc)

BRB , Paradise, Singer

9 MCB (in MDB) Legrand (63 amps 3 pole)

10 MDB Size 750 x500 x200 mm

11 Green Cable Eastern (50 mm2) BRB , Paradise, Singer

12 Fire Extinguisher Thai Tech 5 kg CO2 set

13 Heat Sensor I.B.M.S

14 Smoke Sensor I.B.M.S

15 Door Alarm I.B.M.S

16 Thermostat I.B.M.S

17 A/C Timer, Relay I.B.M.S

18 Grounding Plate Local Cu (12" x 4")

19 Tubelight (FLORESCENT) Dallas, Easter Tubes


Ericsson Internal



2006-12-05 PB1

Annex B

Recommended Suppliers – Civil Works

Sl No Items Specification1 Wall tiles ALT, MAC Fu Wang 232592 Floor tiles ALT / MAC RAK 7GP128G3 Cement Holcem, Scan, King4 DB 16 gauge

5 Painting (Berger)

Outside Equipment/Generator/Guard room Durocem (brilliant white), Inside Equipment/Generator/Guard Plastic paint (brilliant white). Grille, mesh enamel paint (brown). Above roof Roofing compound (green)

Boundary Wall – French grey ( Weather coat) Brick Shelter Outer Surface (rooftop) – Off-white (weather

coat) Barbed wire angle/GI pole – Traffic Blue (synthetic enamel) Middle 1/3 of gate (front side) – Signal red (synthetic enamel) Another 2/3 portion (front side) and inner side of the gate –

Traffic blue (synthetic enamel) Brick Shelter roof ceiling – White distemper Genset shade – 3mm corrugated fibre sheet (blue)


Ericsson Internal



2006-12-05 PB1

Annex CResponsibility Matrix

Responsibility Description Operator Ericsson SPNetwork dimensioning ● ● RF Plan ● ● TX Network ● ● Roll out plan ● ● Site Acquisition Survey ● ●Lease ● ●Technical Site Survey ● ● ●Site Construction Layout ● ●Design ● ●Construction ● ●Supervision ● Finishing ● ●Equipment install BTS ● ●Microwave ● ●Commissioning Testing ● ●Commissioning ● ●Integration ● ● Handover ● ●


Ericsson Internal



2006-12-05 PB1

Annex D

Proposed Antenna Loading of 40/50 Metre Self Supporting Tower


Ericsson Internal



2006-12-05 PB1

Annex E

Proposed Antenna Loading of 60 Metre Self Supporting Tower


Ericsson Internal



2006-12-05 PB1

Annex F

Potential Antenna Loading of 75 Metre Self Supporting Tower


Ericsson Internal



2006-12-05 PB1

16 Distribution List

For your Information

Receiver


warid general specification rev b (2)

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