RADIOELECTRIC SITES CONTROL FOR COMPLIANCE OF GSM OBILE

RADIOELECTRIC SITES CONTROL FOR COMPLIANCE OF GSM OBILE CELLULAR TELEPHONY NETWORKS IN COTE D’IVOIRE Workshop of ITU-T Study Group 5 Regional Group for Africa, Cotonou, Benin, 19 July 2012 VALSCH-Consulting DALLY BRICE LANDRY Technical Manager

CONTENT Ø PURPOSE OF THE EXPERTISE Ø MISSION SCOPE Ø REFERENCES TO STANDARDS Ø STRUCTURES OVERVIEW Ø STRUCTURING OF THE MISSION Ø MISSION OPERATION Ø OBSERVATIONS Ø FAULTS PICTORIAL Ø EXPOSURES BY THE POPULATIONS Ø MEASUREMENTS PICTORIAL Ø REPORT AND SYNTHESIS

Ø Ø PURPOSE OF THE EXPERTISE § Control the compliance of GSM radioelectric sites to standards requirement in the pylon implementation, electric security, buoying and electromagnetic compatibility; § Abide by technical prespecriptions, namely perimeters for security and control; § Enhance ATCI basic information over technical parameters for radioelectric operating setups; MISSION SCOPE § The campaign covers the networks for the following mobile cellular telephony operators: ORANGE COTE D’IVOIRE (OCI), MTN-CI, COMIUM (Koz), ATLANTIQUE TELECOM (Moov) and ORICEL (Green).

Ø REFERENCES TO STANDARDS § FOUNDATION DTU P 18. 702: French Regulations BAEL 91 regulations for design and the calculation of armed concrete works following the method of neighbouring countries. DTU 13. 12 : French Regulations for the calculation of surface foundations § METALLIC STRUCTURE (PYLON) DTU P 06. 002 : French Regulations NV 65 – regulations that define snow and wind impacts on constructions/ Eurocode I. DTU P 22. 701 : French Regulations CM 66 and addendum 80 – regulations of calculation of steel constructions / Eurocode III. DTU P 22. 703 : Justification par le calcul de la sécurité des constructions - règles de calculs des constructions à parois minces en acier. NFP 22 -430, NFP 22 -460 à 469 (assemblages métalliques).

REFERENCES TO STANDARDS §SYSTEM OF OVERHEAD SIGNALLING (BUOYING) Recommendations of the International Civil Aviation Organization, OACI annex 14 chapter 6 (11/1999). §LIGHTNING SYSTEM Rec IUT K 56 : Protection of radio base stations against lightning discharges. (01/2010). Standards NFC 17 -100 : Protection of structures against lightning (12/1997). Standards NFC 15 -100 : Electric Installations and Cables. §DIRECTIVES : IFC (international Financial Company) / WORLD BANK GROUP Environmental, sanitary and security directives for Telecommunications

Ø INFRASTRUCTURES OVERVIEW FREE STANDING PYLON

ØINFRASTRUCTURES OVERVIEW Guyed Pylon

ØINFRASTRUCTURES OVERVIEW MAST and TRIPOD

Ø MISSION STRUCTURING No of activity 01 Designation of activity Budget (Day) Development work ATCI-VALSCH-OPERATORS OF CELLULAR MOBILE TELEPHONY 02 Receiving of fragment for engineering table and positioning of sites Mapping 03 Physical tracking for sites 0, 5 05 0, 5 - - Operation of the site implementation Visual controls and measurement for IN SITU compliance, site per site 06 0, 5 Draft of mission report Draft of synthesis report 3 3 Presentation of outcomes 07 Working session, explanation on the purpose and control points related to the mission Mission performance 04 Comments 0, 5 Site per site, Synthesis of standard gaps in percentage, for each plate covered Plate per plate in line with the Operator’s DESIGN RADIO

Ø MISSION OPERATION POSITIONING OF SITES (MAP Info / Google Earth)

MISSION’S OPERATION § ENVIRONMENTAL CONTROL OF RADIOELECTRIC INFRASTRUCTURE Such chapter deals with environmental verification for radioelectric sites, impacts over environment/works done during the operational phases, rehabilitation and re-development. § PYLON Such chapter deals with measurements and visual controls to verify the stability of the infrastructure (aerial plants). § SYSTEM OF AERIAL SIGNALLING This chapter deals with the control of buoying operations night and day according to the general prescriptions of the International Civil Aviation Organisation (OACI) and local civil aviation authority.

MISSION’S OPERATION § SYSTEM OF LIGHTNING This chapter deals with the system control for combatting lightning to protect Telecom installation equipment and neighbouring. § RADIOELECTRIC DISCHARGE This chapter is about the reading of true technical parameters, control of state and evaluation of radioelectric discharge embarked on pylons and other relevant structures. § SYNTHESIS AND PRESCRIPTIONS This chapter is about the synthesis of faults and recommendations for rehabilitation and compliance of works. MISSION’S DETAIL : CONTROL FOR INFRASTRUCTURE RADIOELECTRIC COMPLIANCE. docx

Ø OBSERVATIONS 1. ENVIRONEMENTAL CONTROL FOR RADIOELECTRIC INFRASTRUCTURE v Zones Concept and Signagee v Observations • Non existence of the security perimeter; • fault of security system in place; • Absence of appropriate signage.

OBSERVATIONS ENVIRONMENT AND INSTALLATION − − − − Dirty Site; Oxydization of shelter at some points; Intallation of cables outside CDCH ; Knickpoint of walls and concretes; Grids of non secured oxdized condensers; Electric Enclosures not secured; Fuel leakage under generator; Extinguisher: expired use period. 2. PYLON − − − − Preventers of end ofthe non existing higher ribs; Reach of the main structure; Advanced Oxydization of nuts and bolts; Security Kit, oxydized, damaged or not exist; Ladder and safety bow, oxydized, damaged or not exist; Mechanic tensions not in compliance with prescriptions; Vertical fault.

OBSERVATIONS 3. SYSTEM OF SIGNALLING − − Deterioated Day buoying; Non Operative Night Buoying; Open junction box; Non operative dusk to dawn switch 4. LIGHTNING PROTECTION − − − Measured value (isolated) higher to 10 Ohms ; Old Lightning conductor; Non Labelled Earthing Network; Earthing system; Absence of earthing system for some equipment; Vandalized site, Site vandalisé , cut and robbed flats. 5. RADIOELECTRIC DISCHARGE − Brake caliper, nuts and bolts, retransmission arms oxydized; − Retransmission arms not galvanized; − Antenna not well fixed / Design Radio not in compliance with engineering table/space isolation not respected; − Deteriorated leaktightness not well completed; − Higher head discharge almost prescribed;

Ø FAULTS PICTORIAL § ENVIRONMENT AND INSTALLATION - non existing perimeter for security, home activities on radioelectric site; - Concrete cracking on radioelectric infrastructure.

PICTORIAL § PYLON Balancing clamps not well aligned, nuts and bolts and oxydized safety kits

PICTORIAL § SYSTEM OF SIGNALLING Non existing buoying, components of the night buoying system damaged

PICTORIAL § SYSTEM ANTI-LIGHTNING Lightning conductor posts oxydized, ground rod oxydized, earthing network robbed, cut and robbed strap copper, isolated measurement not in compliance with standard prescription

PICTORIAL § RADIOELECTRIC DISCHARGE Plug holes and GSM antenna fixing stirrup attachments damaged.

EXPOSURES BY THE POPULATIONS - Exposure to electromagnetic waves transmitting sources (electrosmog) ; - Electrocution ; - Fire ; - Houses Destruction; - Aircraft crash (aeroplanes) ; - Destruction of home appliances; - Bad quality or interruption of communications; - Etc.

MEASUREMENTS PICTORIAL Measurement of faulting vertical angle. Measurement of mechanic tension of Hauban cable. Measurement of earth resistibility.

MEASUREMENTS PICTORIAL REPORT AND SYNTHESIS DVD-OCI 28 -06201201_RAPPORT_VC_ATCI_RX_OCI. xls x

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