Fourth, electrical specialty
Serial number project review content
6. 1 Mandatory Provisions "Mandatory Provisions of Engineering Construction Standards" (housing construction part) 2002 edition (specific terms omitted)
6.2 Whether the design standards adopted in the design basis are correct, whether they are current and effective versions, and whether they conform to the actual situation of this project.
6.3 Power supply and distribution system
6.3. 1 distribution room (l) The location selection of substation shall meet the requirements of clause 2.0.l of GB 50053-94 and clause 4.2.l of JJ/T16-92.
(2) The high-voltage distribution room and the duty room should be directly connected or connected through a passage, and the duty room should have a door leading directly to the outdoor or to the aisle (Article 4. L.6 of GB 50053-94).
(3) The non-enclosed dry-type transformer installed in the substation shall be provided with a fixed barrier with a height of not less than 1.7m, and the mesh of the barrier shall not be greater than 40mmx40mm. The clear distance between transformer shell and shelter shall not be less than 0.6m, and the clear distance between transformers shall not be less than1.0m (Article 4.2.5 of GB 50053-94).
(4) The minimum cold distance between the combustible oil-immersed transformer shell and the walls and doors of the transformer room; The minimum width of various channels in the high and low voltage distribution room shall meet the requirements of Articles 4.2.4, 4.2.7 and 4.2.9 of GB50053-94.
(5) Long-term allowable current of current-carrying parts such as switchgear and conductors of capacitor device, the rated current of high-voltage capacitor shall not be less than 1.35 times and that of low-voltage capacitor shall not be less than 1.5 times (Article 5. 1.2 of GB 50053-94).
(6) Lamps and exposed wiring should not be arranged directly above the exposed conductor in the distribution room. When the lamps are arranged directly above the bare conductor in the distribution room, the horizontal clear distance between the lamps and the bare conductor shall not be less than 1.0m, and the lamps shall not be hoisted by chains and ropes (Article 6.4.3 of GB 50053-94).
6.3.2 Whether the content and calculation method of power supply and distribution (1) load conform to the provisions of Articles 3.4.5, 3.4.6 and 3.4.7 of JJ/T16-92.
(2) Whether the rated voltage, rated current, rated frequency of the selected electrical appliances and the breaking capacity of the outlet switch of the low-voltage distribution cabinet of the substation meet the provisions of Article 2. 1. 1 of GB5005495.
(3) Whether the protection coordination of distribution system is selective (Article 4. 1.2 of GB50054-95).
(4) Whether the selection of electrical conductor section and line overload protection meet the requirements of Articles 2.2.6, 2.2.7 and 4.3.4 of GB50054-95; Whether the correction factors of laying environment, ambient temperature and laying mode have been considered.
(5) The minimum cross section of the protection line (PE line) shall comply with the provisions of Articles 2.2.9 and 2.2. 10 of GB50054-95.
(6) Whether the installation position of line protection electrical appliances meets the provisions of Article 4.5.2 of GB50054-95.
(7) For the low-voltage distribution lines introduced from outside the building, for the convenience of operation and maintenance, isolation devices should be installed indoors near the introduction point (article 6.0. 10 of GB 50052-95).
(8) When the 10(6)KV main distribution station radiates power to the distribution station, the power inlet switch of the distribution station shall adopt isolating switch or isolating contact (Article 3.2.3 of GB50053-94).
(9) Electrical equipment far away from power distribution (control) devices shall be equipped with isolating appliances nearby, and remote-controlled motors shall have local control and remote-controlled release measures (Articles 2.5. 1 and 2.6.4 of GB50055-93).
Fire prevention (L) The reliability of fire power supply equipment shall meet the requirements of Article 4.3.5 of GB 50054-95 and Article 2.4 of GB 50055-93.
(2) When the control equipment of fire pump and smoke exhaust fan is controlled by bus coding module, a manual direct control device shall be set in the fire control room (Article 5.3.2 of GB5016-98+06-98).
(3) Whether the non-fire power supply in the relevant parts of the fire-fighting linkage control meets the linkage cut-off conditions (Article 6.3. 1.8 of GB 50LL 6-98).
(4) The evacuation indicator light should indicate the correct direction. This position should correctly guide people to evacuate the building in a short distance.
(5) Whether the power supply of emergency lighting (with storage battery) meets the requirements of Article * .8.9 of JJ/T16-92.
(6) The selection and design of fire detectors, the functions of fire fighting equipment and the objects of linkage control shall comply with the provisions of relevant chapters in GB 50LL 6-98.
6.5( 1) Whether the lightning protection and grounding measures for buildings against direct lightning, side lightning, lightning electromagnetic pulse and lightning wave invasion meet the requirements of relevant regulations in the code.
(2) Whether the working grounding and safety grounding resistance values of lightning protection grounding and building electrical system comply with relevant regulations.
(3) The grounding of communication network system, office automation system, building equipment monitoring system, automatic fire alarm system, safety protection system and integrated wiring system shall comply with Article14-2000 and Article 2.5.3 of IGB50 198.94.
(4) The power supply system of intelligent system equipment should adopt overvoltage protection (clause14-2000 10.2.7).
(5) Electrical protection against contact should be considered for electrical devices and electrical equipment (Article 4.4.2 of GB 50054-95). Articles 14. 3. 1 and 14.3.3 of ijgjit16-92).
6.6 Requirements of different construction projects for building electricity
6.6. The power supply system design of1residential building (L) shall meet the requirements of Articles 6.5.2 and 6.5.3 of GB 50096- 1999.
(2) Pipes with * * * function ... electric risers, etc. Should not be arranged in the shell (article 6.6.4 of GB 50096- 1999).
6.6.2 The power supply design of the garage (1) shall meet the requirements of Articles L, 9, 2 and 64 of GB 50067-97. JJGL100-98, "Mechanical garages should be equipped with dual power supply systems".
(2) The laying of fire pipelines in the garage shall meet the requirements of Article 9.0.3 of GB 50067-97.
6.6.3 The library should be equipped with emergency lighting, duty lighting or guard lighting (article 7.3.4 of GB 8-99); The lighting of the stacks should be controlled by zones and shelves, and the main power switch on each floor should be located outside the stacks (Article 7.3.7 of JGJG38-99).
6.6.4 The main power switch of the archive storage area should be located outside the storage area, and the power switch of the warehouse should be located outside the warehouse, and there should be safety protection measures to prevent electric leakage (article 7.3. 1 of JGJ 25-2000).
6.6.5 The power supply reliability of important parts of hospital buildings and the grounding safety of key parts shall meet the requirements of 5.4. Received JGJ 49-88 and JGJ 14.7 stone strips/t16-92 respectively; The design of medical equipment power supply and master switch knife in radiology department, nuclear medicine department, functional examination room and other departments should meet the requirements of article 5.4.3 and 5-in-4 of JGJ 49-88.
6.6.6 The design of the power distribution circuit of the theater stage SCR dimmer (1) shall meet the requirements of Article10/0 of JGJ/T 16-92.
(2) The design of emergency lighting and evacuation indicator lights in the theater shall meet the requirements of Article.
6.6.7 Whether the installation of electrical equipment in the toilet and swimming pool meets the requirements of JJ/T16-92 14.8.2.8, 14.8.2.9 and 14.8.3.9.
6.6.8 The selection of motors, starting control equipment, lamps and wires in the boiler room (1) should adapt to the environmental classification of different buildings and structures in the boiler room. The classification of places with explosion and fire hazards, such as gas surge chamber, fuel preparation room, coal mill room and coal conveying corridor, must conform to the relevant provisions of the current national standard "Code for Design of Electrical Installations in Explosive and Fire Dangerous Environments" (see article 13.2.2 of the Code for Design of Boiler Rooms).
(2) The lightning rod should be set at or near the top of the gas emission pipe, with its tip not less than 3m higher than the top of the pipe, and its protection range not less than1m higher than the top of the pipe (article 13.2. 15 of GB 50038-92).
6.6.9 The classification of wartime electricity load of civil air defense basement (1) of civil air defense works shall comply with the provisions of Article 7.2.3 of GB 50038-94.
(2) The power supply system of air defense basement shall be designed with a separate distribution panel (box) (article 7.2.9. 1 of GB 50038-94).
(3) The materials of wires and cables shall meet the requirements of Article 8. 1.4 of GB 50098-98.
(4) The wartime distribution line from the low-voltage distribution room to each protection unit shall be independent (Article 7.3.7 of GB 50038-94).
(5) The installation of lamps and lanterns for civil air defense works shall meet the requirements of Article 7.4. 10 of GB50038-94.
(6) Fire evacuation lighting shall meet the requirements of Article 8.2. 1(8.2. 1A) of GB50038-98.
6.6. 10 The special electrical requirements of other buildings with different properties shall conform to the current design specifications and fire protection design specifications of the corresponding building projects.
6.7 Whether the design depth of the construction drawing (1) conforms to the provisions of the design document depth of the construction project.
(2) Whether the design description and construction drawing are complete.
(3) The calculation of total load and shunt load of the project shall include equipment capacity, demand coefficient, calculation capacity, power factor and calculation current.
(4) The terminal system shall indicate the purpose and capacity.
6.8 Whether the specifications, models, performance and other technical parameters and quantity of the equipment are indicated in accordance with the provisions of Article 22 of the Regulations on Quality Management of Construction Projects, but manufacturers and suppliers shall not be designated, and obsolete products shall not be used.
All or part of the fire fighting linkage equipment required for intelligent fire fighting.
1, fire alarm device and emergency broadcast. When there is a fire, it is used to warn or inform people to move safely.
2. For fire telephone and fire alarm inquiries, you can call emergency headquarters directly "1 19".
3. Non-fire power supply control, fire emergency lighting and safe evacuation indication control.
4, indoor fire hydrant pump and spray pump, used for fire fighting.
5, fire elevator operation control
6, fire doors, fire shutter fire damper control, used to implement fire separation, to prevent the spread of fire.
7. Smoke prevention (exhaust) fans, air conditioning and ventilation equipment, air supply valves and smoke exhaust valves are used to prevent the spread of smoke and provide life-saving protection.