QATAR ENERGY POLICY, LAWS AND REGULATION HANDBOOK

QATAR TRANSMISSION GRID CODE 7 PREFACE 7 CONTENT OF THE GRID CODE 7 GENERAL PROVISIONS 8 A. GENERAL PROVISIONS (GP) 8 B. PLANNING CODE (PC) 32 C. CONNECTION CODE (CC) 54 D. REQUIREMENTS FOR GENERATORS AND CONSUMERS CODE (RGCC) 68 E. OPERATION CODE (OC) 118 F. EMERGENCY AND RESTORATION CODE (ERC) 164 ELECTRICITY WIRING CODE 177 PREFACE: 177 SECTION 01: GUIDELINES, PRINCIPLES AND RESPONSIBILITIES 177 SECTION 02: DEFINITIONS & SYMBOLS 181 SECTION 03: REQUIREMENTS FOR SAFETY 189 3.1 Electrical installations 189 3.2 Materials used in electrical installations 189 3.3 Electrical conductors 190 3.4 Labeled and referenced. 190 3.5 Switches 191 3.6 Metal work 191 3.7 Effective means 191 3.8 Emotors 191 3.9 Apparatus 191 3.10 Conductors 192 3.11 Situation 192 3.12 Electrical equipment 192 3.13 No addition 192 3.14 Construction purposes 192 3.15 Temporary installation 192 3.16 Name and designation 192 3.17 Assessment 193 3.18 Permission 193 3.19 Assessment 193 3.20 Requirements 193 SECTION 04: MAIN LOW VOLTAGE SERVICES ARRANGEMENTS AND DISTRIBUTION BOARDS 194 4.1 Main Low Voltage Switch-rooms: 194 4.2 Main L.V Switchgear (MDB) / M.L.V.P. 195 4.3 KAHRAMAA Incoming Supply Cable: 196 4.4 Switchboard Panels Materials: 196 4.5 Labels: 196 4.6 Main Switches: 197 4.7 Discrimination, selectivity and co-ordination: 197 4.8 Metering: 197 4.9 Restricted Earth Fault Protection: 198 4.10 Sealing of Apparatus: 198 4.11 Bus-Bars: 199 4.12 Neutral and Earth Bar: 199 4.13 Clearance from Bare Conductors and Live Parts: 199 4.14 Links: 200 4.15 Cable Interconnections: 200 4.16 Main and Sub Main Switch Fuses: 200 4.17 Fault Levels: 200 4.18 Hinged Panels: 202 4.19 Access to Passageways: 202 4.20 Alterations or Replacement of Switchgears: 202 4.21 Method of connection from KAHRAMAA Networks Check Planning Guidelines 203 4.22 Main Switchboards specifications: 203 4.23 Distribution Boards: 204 SECTION 05: EARTHING 205 5.1 Earth Provided by KAHRAMAA: 205 5.2 Earth Point Not Provided by KAHRAMAA: 205 5.3 Earth Electrode Terminations: 205 5.4 Continuity of Conductors: 206 5.5 No switching device 206 5.6 Armoured Cables: 206 5.7 Un-armoured Cables: 206 5.8 M.I.C.C. Cables: 206 5.9 Bonding: 206 5.10 Lightening Protection Earthing: 207 SECTION 06 CAPACITY 207 6.1 Type of wiring system 207 6.2 Conductors: 207 6.3 Current Carrying Capacity: 207 6.4 Voltage Drop: 208 6.5 Selections of Types of Wiring: 209 6.6 Connection of Conductors in Parallel: 211 6.7 Sub Mains: 211 6.8 Installations of Sub Main