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GB 50303-2015 PDF EnglishSearch result: GB 50303-2015_English: PDF (GB50303-2015)
GB50303-2015: PDF in EnglishGB 50303-2015 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC P GB 50303-2015 Code for Acceptance of Construction Quality of Building Electrical Engineering ISSUED ON: DECEMBER 3, 2015 IMPLEMENTED ON: AUGUST 1, 2016 Issued by: Ministry of Housing and Urban-Rural Construction of the People’s Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China. Table of Contents Foreword ... 4 1 General Provisions ... 10 2 Terms and Symbols ... 11 2.1 Terms ... 11 2.2 Symbols ... 13 3 Basic Requirements ... 14 3.1 General Requirements ... 14 3.1.5 Electrical equipment, wiring system and relay protection system with high-voltage must pass the hand-over test... 14 3.1.7 Exposed-conductive-part of electrical equipment shall separately connect to protective conductor, and it must not be in series connection; material and sectional area of connecting conductor shall meet the design requirements... 14 3.2 Site Acceptance of Main Equipment, Materials, Finished Product and Semi-finished Products ... 14 3.3 Confirmation of Process Handover ... 20 3.4 Division and Acceptance of Divisional Project (Subdivisional Project) ... 25 4 Installation of Transformer and Box-type Distribution Station ... 28 4.1 Dominant Item ... 28 4.2 General Item ... 29 5 Installation of Complete Set Distribution Cabinet, Control Cabinet (Console, Box), Distribution Box (Switch Board) ... 31 5.1 Dominant Item ... 31 5.2 General Item ... 33 6 Check the Wiring of Electromotor, Electrical Heater and Electric Actuating Machine 37 6.1 Dominant Item ... 37 6.2 General Item ... 37 7 Installation of Diesel Power Generating Set ... 39 7.1 Dominant Item ... 39 7.2 General Item ... 39 8 Installation of UPS and EPS ... 41 8.1 Dominant Item ... 41 8.2 General Item ... 42 9 Testing and Power Test Run of Electrical Equipment ... 43 9.1 Dominant Item ... 43 9.2 General Item ... 43 10 Installation of Busway ... 44 10.1 Dominant Item ... 44 10.2 General Item ... 45 11 Installation of Ladder, Tray and Trunking ... 48 11.1 Dominant Item ... 48 11.2 General Item ... 49 12 Conduit Laying ... 51 12.1 Dominant Item ... 51 12.1.2 The steel conduit shall not be connected by butt fusion welding; the galvanized steel conduit or steel conduit with wall thickness less than or equal to 2 mm shall not be adopted with bushing fusion welding connection... 51 12.2 General Item ... 52 13 Cable Laying ... 56 13.1 Dominant Item ... 56 13.1.5 Single-core AC cable or each phase cable after phase splitting shall not be introduced into the steel conduit singly; fixtures and bearers used for fixing shall not form closed magnetic circuit... 56 13.2 General Item ... 57 14 Conduit Wiring and Trunking Wiring ... 60 14.1 Dominant Item ... 60 14.2 General Item ... 60 15 Straight Laying of Plastic Sheathed Wire ... 62 15.1 Dominant Item ... 62 15.2 General Item ... 62 16 Steel Rope Wiring ... 64 16.1 Dominant Item ... 64 16.2 General Item ... 64 17 Cable Head Production, Wire Connection and Line Insulation Test ... 66 17.1 Dominant Item ... 66 17.2 General Item ... 67 18 Installation of Ordinary Luminaire ... 69 18.1 Dominant Item ... 69 18.1.5 As for the exposed conductive part of Class I luminaire of ordinary luminaire, copper- cored flexible wire must be adopted to connect it with the protective conductor reliably; the junction shall be arranged with earthing mark and the sectional area of copper- cored flexible conductor shall be the same as that of the power line introduced into the luminaire... 70 18.2 General Item ... 71 19 Installation of Special Luminaire ... 74 19.1 Dominant Item ... 74 19.1.6 The installation of landscape lighting luminaires shall meet the following requirements: ... 75 19.2 General Item ... 76 20 Installation of Switch, Socket and Fan ... 79 20.1 Dominant Item ... 79 20.1.3 Socket wiring shall meet the following requirements: ... 79 20.2 General Item ... 80 21 Power Test Run of Building Lighting ... 83 21.1 Dominant Item ... 83 22 Installation of Earthing Device ... 84 22.1 Dominant Item ... 84 22.2 General Item ... 84 Code for Acceptance of Construction Quality of Building Electrical Engineering 1 General Provisions 1.1.1 This code is formulated with a view to strengthening the quality management of construction engineering, unifying the construction quality acceptance of building electrical engineering and ensuring the engineering quality. 1.1.2 This code is applicable to the construction quality acceptance of building electrical installation project with voltage class of 35kV or below. 1.1.3 Building electrical engineering construction quality acceptance shall meet those specified in this code as well as the current relevant ones of the nation. subjected to site acceptance, and acceptance record shall be kept and acceptance data shall be filed. In case there are technical parameter requirements for design, the technical parameter shall be checked and meet the design requirements. 3.2.2 Products with production license or compulsory certification (CCC certification) shall be provided with license No. or CCC certification mark, and certification scope, effectiveness and authenticity of production license or CCC certificate shall be randomly inspected. 3.2.3 Technical documents for installation, application, maintenance and test requirements shall be provided in case of site acceptance of new type electrical equipment, instrument and materials. 3.2.4 As for site acceptance of imported electrical equipment, instrument or materials, quality certificate, performance test report as well as technical documents for installation, application, maintenance and test requirements shall be provided; as for imported electrical equipment with commodity inspection requirements, commodity inspection certificate shall also be provided. 3.2.5 In case on-site sampling inspection is carried out for site acceptance of main equipment, materials, finished product and semi-finished products or sampling inspection is carried out in qualified laboratory due to disagreement, the following requirements shall be met: 1 On-site sampling inspection: as for busway, conduit, insulated wire and cable of the same manufacturer, lot, model and specification, at least 1 sample shall be taken out from each lot; as for such electrical equipment as luminaire, socket and switch of the same manufacturer, material and type, 3% of each shall be sampled for inspection; as for luminaire with storage battery, 5% of them shall be sampled for inspection, and the inspection quantity shall not be less than 1 piece (set). 2 Sampling inspection carried out in qualified laboratory due to disagreement: as for busway, insulated wire, cable, ladder, tray, trunking, conduit, profile steel and galvanized product of the same manufacturer and lot but different specification, 10 % shall be subjected to sampling inspection and the quantity of specification of the inspected product shall not be less than 2; as for such electrical equipment as luminaire, socket and switch of the same manufacturer, material and type, in case the quantity is 500 pieces (sets) or below, 2 pieces (sets) shall be subjected to sampling inspection, and the quantity for sampling inspection for each shall at least be 2 pieces (sets), in case the quantity is more than 500, 3 pieces (sets) shall be subjected to sampling inspection. 3 As for multiple unit works included in the same construction project constructed by the same construction organization, in case main equipment, materials, finished product and semi-finished products of the same manufacturer, material, lot and type are used, the sampling ratio shall be calculated in a combined way. 4 In case of unqualified sampling inspection results, the sampling quantity for inspection may be doubled, in case there is still unqualified result, this lot of equipment, materials, finished products or semi-finished products shall be judged as unqualified products and shall not be used. 5 There shall be test report. 3.2.6 As for site acceptance of transformer, box-type substation, high-voltage electric equipment and electrical porcelain products, the following contents shall be covered: 1 Inspect quality certificate and accompanying technical documents: transformer shall be provided with end-of-manufacturing test records; 2 Appearance inspection: the equipment shall possess nameplate, the surface coating shall be integral, the accessories shall be complete, the insulating piece shall be free from defect or crack, the part for oil charging shall be free from leakage, and the air pressure indication of charging high-pressure equipment shall be normal. 3.2.7 Site acceptance of high-voltage complete-set distribution cabinet, storage battery cabinet, UPS cabinet, EPS cabinet, complete set low-voltage distribution cabinet (box) and control cabinet (console, box) shall meet the following requirements: 1 Inspect quality certificate and accompanying technical documents: such complete set of cabinets as complete set high-voltage and low-voltage distribution cabinets, storage battery cabinet, UPS cabinet and EPS cabinet shall possess end-of-manufacturing test report; 2 Check product model and product technical parameter: they shall meet the design requirements; 3 Appearance inspection: the equipment shall possess nameplate, the surface coating shall be integral without visible collision dents, the elements and components in the equipment shall be intact and the wiring shall be free from shedding or sealing-off, the material and specification of insulated wire shall meet the design requirements, the battery case in storage battery cabinet shall be free from fragmentation or leakage, and the oil-filled equipment and the charging equipment shall be free from leakage. 3.2.8 Site acceptance o.......Source: https://www.ChineseStandard.net/PDF.aspx/GB50303-2015 |