Broadcast Reception Installation
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GENERAL SPECIFICATION FOR BROADCAST RECEPTION INSTALLATION IN GOVERNMENT BUILDINGS OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION 2001 Edition © THE HONG KONG SPECIAL ADMINISTRATIVE REGION BUILDING SERVICES BRANCH ARCHITECTURAL SERVICES DEPARTMENT COPYRIGHT This General Specification for Broadcast Reception Installation is copyrighted and all rights (including subsequent amendments) are reserved. 2. This General Specification is solely compiled for use on broadcast reception installations in Government buildings of the Hong Kong Special Administrative Region. 3. It is hereby declared that the specification contained herein may not be pertinent or fully cover the extent of installations carried out by others. Prior consent by the Director of Architectural Services must be obtained for adoption of this General Specification on installations of other nature or locations. TABLE OF CONTENT PART A : SCOPE AND GENERAL REQUIREMENTS SECTION A1 : SCOPE OF SPECIFICATION A1.1 INSTALLATION TO COMPLY WITH THIS GENERAL SPECIFICATION A1.2 INSTALLATION TO COMPLY WITH THE PARTICULAR SPECIFICATION & DRAWINGS A1.3 VOLTAGE COVERED BY THIS GENERAL SPECIFICATION A1.4 DEFINITIONS, INTERPRETATION & ABBREVIATIONS A1.4.1 Terminology and Glossary of Terms A1.4.2 Abbreviations A1.4.3 Definitions A1.5 SINGULAR AND PLURAL SECTION A2 : STATUTORY OBLIGATIONS AND OTHER REGULATIONS A2.1 INSTALLATION TO COMPLY WITH OBLIGATIONS AND REGULATIONS A2.2 SAFETY REQUIREMENTS A2.3 CASE OF CONFLICT SECTION A3 : GENERAL REQUIREMENTS ON MATERIAL EQUIPMENT, WORKMANSHIP & QUALITY A3.1 MATERIAL AND EQUIPMENT A3.1.1 International Standards A3.1.2 Other Standard Specifications A3.1.3 The International System of Units (SI) A3.1.4 Service Conditions A3.1.5 Selection of Equipment A3.1.6 Equipment Catalogue and Manufacturer’s Specification A3.2 WORKMANSHIP A3.2.1 Tradesmen A3.2.2 Tool and Instrument A3.2.3 Safety on Site A3.3 LABEL A3.3.1 Inscription of Label and Engraving Content Page 1 of 5 A3.3.2 Material for Label A3.3.3 Fixing of Label A3.3.4 Engraving for Broadcast Reception Accessory A3.3.5 Other Labels and Notices A3.4 INSULATING MATERIAL A3.5 FIXING SCREW AND BOLT A3.6 FIXING TO WOODEN PLUG A3.7 SHEET METAL WORK A3.8 PAINTING A3.9 WATER PROOFING SECTION A4 : OTHER GENERAL REQUIREMENTS A4.1 SCOPE OF REQUIREMENT A4.2 STANDARDS AND STANDARD DETAILS A4.3 DRAWINGS PROVIDED BY THE CONTRACTOR A4.3.1 Size of Drawing A4.3.2 Working Drawing A4.3.3 As-fitted or As-installed Drawing A4.3.4 Submission of Drawings during Construction A4.3.5 Submission of Drawings upon Completion A4.4 SUBMISSION OF OPERATION & MAINTENANCE (O&M) MANUALS A4.5 SAMPLE BOARD A4.6 SUBMISSION OF TESTING & COMMISSIONING PROCEDURE A4.7 REQUIREMENTS DURING MAINTENANCE PERIOD PART B : INSTALLATION METHODOLOGY SECTION B1 : BROADCAST RECEPTION (BR) SYSTEM DESIGN B1.1 ONLY ONE BR SYSTEM PER SITE B1.2 SELECTING THE GAIN OF TV AND FM AERIALS B1.3 SEPARATE DOWN LEADS FOR THE TV AND FM SIGNALS B1.4 SELECTION OF AMPLIFIERS B1.5 LOSS ALLOWANCE B1.6 ENCLOSURE OF HEADEND CIRCUIT COMPONENTS SECTION B2 : SIGNAL LEVEL AT FM/TV DUPLEX OUTLET B2.1 SIGNAL LEVELS B2.2 PERMISSIBLE DIFFERENT SIGNAL LEVELS IN AN OUTLET B2.3 INTERMODULATION B2.4 MUTUAL ISOLATION BETWEEN OUTLETS Content Page 2 of 5 SECTION B3 : TERRESTRIAL TV ANTENNA SYSTEM B3.1 TERRESTRIAL AERIALS B3.2 PREAMPLIFIERS AND FILTERS B3.3 AMPLIFIERS B3.4 FREQUENCY CONVERTERS B3.5 UHF MODULATORS B3.6 SPLITTERS/TEE-UNITS B3.7 COAXIAL CABLES B3.8 FM/TV DUPLEX OUTLETS SECTION B4 : SATELLITE MASTER ANTENNA TELEVISION SYSTEM B4.1 SMATV SYSTEM INSTALLER REQUIREMENTS B4.2 THE SATELLITE TV ANTENNA SUB-SYSTEM B4.2.1 Antenna Location B4.2.2 Support for the Dish Antenna B4.2.3 Antenna Installation B4.3 FEEDHORN B4.4 SATELLITE RECEIVERS AND MODULATORS SECTION B5 : ANCILLARY SYSTEM B5.1 CONDUITS & CABLE TRUNKINGS B5.2 POWER SUPPLY PART C : MATERIAL AND EQUIPMENT SPECIFICATION SECTION C1 : TERRESTRIAL TV ANTENNA SYSTEM C1.1 TERRESTRIAL AERIALS C1.2 PREAMPLIFIERS AND FILTERS C1.2.1 Preamplifiers C1.2.2 TV Bandpass Preamplifiers C1.2.3 FM Bandpass Preamplifiers C1.2.4 TV Bandpass Filters C1.2.5 FM Bandpass Filters C1.3 AMPLIFIERS C1.3.1 Wideband Amplifiers C1.3.2 FM Channel Amplifiers C1.3.3 TV Channel Amplifiers & AGC Modules C1.4 FREQUENCY CONVERTERS Content Page 3 of 5 C1.5 UHF MODULATORS C1.6 SPLITTERS/TEE-UNITS C1.7 COAXIAL CABLES C1.8 FM/TV DUPLEX OUTLETS SECTION C2 : SATELLITE MASTER ANTENNA TELEVISION SYSTEM C2.1 SYSTEM REQUIREMENTS C2.2 THE SATELLITE TV ANTENNA SUB-SYSTEM REQUIREMENTS C2.2.1 Environmental Operating Requirements C2.2.2 Electrical Specification C2.2.3 Mechanical Specifications C2.2.4 Feedhorn C2.2.5 Low Noise Amplifier (LNA)/Low Noise Block Down Converter (LNB) C2.3 SATELLITE RECEIVERS C2.3.1 RF Signal C2.3.2 Video Parameters C2.3.3 Audio Parameters C2.3.4 General Specifications C2.4 SATELLITE AMPLIFIER SECTION C3 ANCILLARY SYSTEM C3.1 CABLE TRUNKINGS C3.2 CONDUITS AND ACCESSORIES C3.3 POWER CABLES PART D : INSPECTION, TESTING, COMMISSIONING AND MAINTENANCE SECTION D1 GENERAL REQUIREMENTS D1.1 GENERAL D1.2 COMPONENT ACCEPTANCE SECTION D2 EQUIPMENT CALIBRATION D2.1 ACCREDITATION D2.2 ACCEPTANCE OF THE CALIBRATION OF THE EQUIPMENT D2.3 DOCUMENT THE CALIBRATION PROCESS D2.4 CALIBRATION RECORDS OF THE EQUIPMENT Content Page 4 of 5 D2.5 CALIBRATION UNDER SUITABLE ENVIRONMENTAL CONDITIONS D2.6 LABEL MARKED "CALIBRATED" D2.7 DOUBT ON THE ACCURACY OF THE EQUIPMENT D2.8 RETURN OF EQUIPMENT SECTION D3 TESTING & COMMISSIONING D3.1 VISUAL INSPECTION D3.1.1 Compliance with Regulations and/or C.O.P.s D3.1.2 Correctness D3.1.3 Visual Damage D3.2 TESTING & COMMISSIONING D3.2.1 Signal Level Measurement of TV Headend and Trunk Distribution Equipment D3.2.2 The Automatic Gain Control (AGC) Performance of TV Channel Amplifiers D3.2.3 Measurement of Signal Levels at TV/FM Outlets D3.2.4 Mutual Isolation between TV/FM Outlets D3.2.5 Functional Testing D3.2.6 Measurement of Azimuth-Elevation (Az-El) Angles of SMATV Antenna(e) SECTION D4 MAINTENANCE DURING MAINTENANCE PERIOD D4.1 GENERAL MAINTENANCE REQUIREMENTS D4.2 EMERGENCY SERVICES, TESTING AND REPAIRS D4.3 ROUTINE HALF-YEARLY INSPECTION, TESTING AND MAINTENANCE D4.4 FINAL INSPECTION, TESTING AND MAINTENANCE D4.5 TAKING RECORDS IN LOG-BOOK D4.6 ARCHITECT TO BE INFORMED D4.7 CERTIFICATE OF MAINTENANCE D4.8 HANDOVER OF INSTALLATION PART E : APPENDICES Appendix E1 : Channel Allocation of Television Broadcasting Service in Hong Kong Appendix E2 : Frequency Allocation of FM Sound Broadcasting Service in Hong Kong Appendix E3 : Testing Instrument Required for Acceptance Tests of Broadcast Reception Installation Content Page 5 of 5 THIS IS A BLANK PAGE PART A SCOPE AND GENERAL REQUIREMENTS THIS IS A BLANK PAGE SECTION A1 SCOPE OF SPECIFICATION A1.1 INSTALLATION TO COMPLY WITH THIS GENERAL SPECIFICATION This General Specification details the intrinsic properties (including materials and workmanship) required of a broadcast reception installation carried out for or on behalf of ArchSD. A1.2 INSTALLATION TO COMPLY WITH THE PARTICULAR SPECIFICATION & DRAWINGS The broadcast reception installation shall comply in every respect with this General Specification, the Drawings and/or the Guided Drawings relating to a particular job or modified by written instruction of the Architect. A1.3 VOLTAGE COVERED BY THIS GENERAL SPECIFICATION All apparatus, equipment, materials and wiring shall be suitable for use on 220V +6%, 50 Hz +2%, a single phase a.c. system. A1.4 DEFINITIONS, INTERPRETATION & ABBREVIATIONS In this General Specification, the following words or expressions shall have meaning hereby assigned to them except when the context otherwise requires: - A1.4.1 Terminology and Glossary of Terms Headend Equipment connected between the receiving aerials and the remainder of the broadcast reception system to process the signals to be distributed. The headend may, for example, comprise channel amplifiers, channel converters, combining and separating networks. Splitter A device in which the signal energy at the input port is divided equally or unequally between two or more output ports. Section A1 Page 1 of 4 Tee-unit A device that a ‘through’ output to connect a series of other Tee-units in cascade and one, or more user’s tap for connecting to user’s outlets. Mutual The attenuation between one system outlet with isolation another at any specified frequency limit at which the system is required to operate. Signal tilt The difference in signal level between channels or groups of channels at any point of a system, expressed in dB. A1.4.2 Abbreviations AGC Automatic gain control. ArchSD The Architectural Services Department, The Government of the Hong Kong Special Administrative Region. BR Broadcast reception BS British Standards, including British Standard Specifications and British Standard Codes of Practice, published by the British Standards Institution. BSB The Building Services Branch of the Architectural Services Department, The Government of the Hong Kong Special Administrative Region. BS EN European Standards adopted as British Standards. CCIR Comitee Consultatif International des Radiocommunications. CEN European Standards prepared by European Committee for Electrotechnical Standardisation or European Committee for Electrotechnical Commission Publication. EMSD The Electrical and Mechanical Services Department, The Government of the Hong Kong Special Administrative Region. FM Frequency modulation. FSD The Fire Services Department, The Government of the Hong Kong Special Section A1 Page 2 of 4 Administrative Region. IEC International Electrotechnical Commission Publications. IEE The Institution of Electrical Engineers, U.K. IF Intermediate frequency. A middle range frequency generated after downconversion in a satellite receiver. IM Intermodulation. ISO International Organisation for Standardization Publications. LNA/LNB Low Noise Amplifier/Low Noise Block Down Converter. OFTA The Office of the Telecommunications Authority, The Government of the Hong Kong Special Administrative Region.