I. Depth requirements
1 general rules
1. 1 This requirement is applicable to the construction drawing design documents of electrical specialty in civil and general industrial construction projects.
1.2 The construction drawing design documents of building electrical specialty shall include drawing catalogue, construction design description, design drawings, calculation sheet (for internal use and archiving) and list of main equipment.
1.3 design documents of building electrical specialty can be divided into electrical design documents and weak current design documents according to the project scale, or uniformly classified as electrical design documents.
1.4 The lines, fonts, proportions and symbols in the design documents shall meet the requirements of GB/T5000 1-200 1 Unified Standard for Architectural Drawing.
2. Overall Engineering Design Document 2. 1 Drawing Catalogue
First list the newly drawn graphics, and then list the selected standard graphics or reused graphics. Design modification drawings and modification notices shall be included in the drawing catalogue.
2.2 Construction design description, supplementary legend symbols and main equipment list (1) Construction design description (specify requirements). (2) Supplementary legend symbols and list of major equipment.
Indicate the name, model, specification, unit and quantity of the main equipment. The main electrical equipment generally includes transformers, diesel generator sets, switch cabinets, distribution boxes and plug-in buses.
2.3 General Power Supply Plan
(1) Mark the name or number of the building (structure), number of floors or elevation, and mark the elevation or contour of the road, terrain and planning red line.
(2) indicate the location and number of transformers and distribution stations; Number and capacity of transformers; Number and capacity of generators; Number and model of outdoor distribution box; Specification, model and capacity of outdoor lighting fixtures.
(3) Overhead lines shall be marked with: line specification and direction; Loop number, pole position number, gear number, gear distance, pole height, stay wire, repeated grounding, lightning arrester, etc. (You can select relevant pages and options in the standard drawing set). (4) Cable lines shall be marked with: line direction, loop number, cable model and specification, and laying method (relevant pages and options of standard atlas can be selected); Cable trench and exhaust pipe shall be attached with main line section drawing.
(5) Proportion and compass.
(6) Items that cannot be clearly expressed in the drawings or need unified explanation: control mode of outdoor lighting, resistance value, type, material and laying mode of grounding device, etc.
2.4 system diagram and control schematic diagram of distribution box or control box
The system diagram of distribution box or control box shall be marked with box number and incoming loop number; Mark the model and specification of each component (including setting parameters); Assign circuit number, conductor model and specification, indicate the phase difference of single-phase load, and provide control schematic diagram for circuits with control requirements; The power supply line shall be marked with the name of electrical equipment; The distribution box shall be marked with parameters such as load calculation data Pe (or Pjs), Ijs, Kc and cosφφ φ.
2.5 Distribution plane and lighting plane
(1) Draw the outdoor lighting layout of the general flat, and indicate the distribution box and its number, trunk line, branch line, loop number, laying method, etc.
(2) Draw the power distribution plan and lighting plan of the auxiliary room with general layout. 2.6 detailed drawing
Cable trench and pipeline layout section of main line section, etc. 2.7 lightning protection and safety diagram connection
Draw the lightning protection and safety wiring diagram of the auxiliary workshop of the general level. 2.8 Calculation Sheet (Internal Use and Filing) 3 Design Documents of Single Project 3. 1 Drawing Directory
First list the newly drawn graphics, and then list the selected standard graphics or reused graphics. Design modification drawings and modification notices shall be included in the drawing catalogue.
3.2 Description of construction design, supplementary legend symbols and list of main equipment
Construction design description, supplementary legend symbols and main equipment list can form the home page. When there are many supplementary legend symbols and major equipment lists, this table can be placed on the second page.
(1) Description of construction design (clearly required). (2) Supplementary legend symbols and list of major equipment.
Indicate the name, model, specification, unit and quantity of the main equipment. The main electrical equipment generally includes transformers, diesel generator sets, switch cabinets, distribution boxes and plug-in buses.
3.3 General electrical plan (see 2.3) 3.4 Main wiring diagram of substation (1);
Draw the main wiring diagram from the incoming line of high-voltage power supply to the low-voltage bus section, and express the power supply mode of primary and secondary loads and the corresponding interlocking control requirements. Indicate the number and capacity of transformers and generators, bus section number and voltage grade.
(2) High voltage distribution system diagram (primary circuit diagram)
The model, specification and voltage grade of the bus shall be indicated in the drawings; Indicate the model, specification, setting value and other parameters of switches, circuit breakers, transformers and electrical instruments (including measuring instruments).
The table below is marked from top to bottom as follows: switch cabinet number, switch cabinet model, loop number, equipment capacity, calculated current, cable model specification, laying method, user name, secondary schematic number or relay protection requirements.
(3) Schematic diagram of relay protection and signal
The scheme of relay protection and signal quadratic principle can choose standard diagram. When the selected standard drawing needs to be modified, the modified part should be drawn and the modified content should be explained.
The control cabinet, DC power supply and signal box (cabinet) shall be products conforming to national standards, and the models, specifications and requirements of related products shall be indicated on the drawings;
There should be a cable wiring diagram outside the panel (cabinet), indicating the wiring number, model, specification and laying method. (4) Low voltage distribution system diagram (primary circuit diagram)
The model and specification of the bus shall be indicated in the drawings; Models, specifications and voltage classes of transformers and diesel generator sets; Indicate the model, specification, setting value and other parameters of switches, circuit breakers, transformers and electrical instruments (including measuring instruments);
The table at the bottom of the drawing is marked from top to bottom as follows: switch cabinet number, switch cabinet model, circuit number, equipment capacity, Kc and cosφφ φ parameters, calculated current, wire or cable model and specification, laying method and user name (corresponding columns such as unit height or module can be added when using split switch cabinet);
(5) Plane and profile drawings Draw the plane and profile drawings of transformer, generator, switch cabinet, control cabinet, DC and signal cabinet, bus duct, cable tray, bracket and trench in proportion, and mark the height, elevation and installation size. When selecting a standard drawing, the number and page number of the standard drawing shall be indicated.
Mark the incoming and outgoing loop numbers, outgoing control cable numbers, laying and installation methods. (6) Lighting and map connection
The plan of lighting and grounding device should be drawn, and the specifications of equipment and materials, the laying method and requirements of grounding device, and the numbers and page numbers of standard drawings and installation drawings involved should be marked.
(7) Description of corresponding drawings
What needs to be explained, which is not explicitly shown in the figure, can be attached to the figure. 3.5 Low-voltage distribution trunk system diagram
Taking the building (structure) as the unit, starting from the distribution line, draw according to the corresponding floor where the equipment is located, and mark the location number, loop number and grounding trunk specification of the distribution box.
3.6 System diagram and control schematic diagram of distribution box or control box
The system diagram of distribution box or control box shall be marked with box number and incoming loop number; Mark the model and specification of each component (including setting parameters); Assign circuit number, conductor model and specification, indicate the phase difference of single-phase load, and provide control schematic diagram for circuits with control requirements; The power supply line shall be marked with the name of electrical equipment; The distribution box shall be marked with parameters such as total load calculation data Pe (or Pjs), Ijs, Kc and cosφφ φ. The terminal distribution box shall be marked with calculation data Pe (or Pjs) and Ijs of shunt load.
3.7 Distribution plane and lighting plane
(1) The power distribution plan shall include building doors and windows, walls, axes, main dimensions, room name, process equipment number and capacity; Layout distribution box and control box, and indicate the number; Draw the line plane position (including control line) and mark the loop number.
(2) Lighting plan, including drawings and layouts of building doors and windows, walls, axes, main dimensions, room names, distribution boxes, lamps and lanterns, switch sockets, lines, etc. , indicating the distribution box number, trunk line and branch line loop number, etc. , if necessary, indicate the laying method; If secondary decoration is needed, the lighting should be designed together with the secondary decoration, but the reserved position of the distribution box should be marked on the distribution or lighting plan accordingly.
(3) The contents that need to be explained are not clearly indicated in the drawing, and can be attached to the drawing.
(4) The arrangement of plan numbers should start from the bottom and end at the top of the building (structure).
3.8 Detailed drawing
1) control room details
Draw the control room layout and off-board wiring diagram with special requirements, and indicate the wiring number, direction and laying method. (If the drawings are complete and clear, they can be drawn in the corresponding power distribution or lighting plan).
(2) shaft details
The detailed drawing shall include the floor plan of building doors and windows, walls, axes, main dimensions, shaft names, equipment, etc., and indicate the equipment number, installation method, positioning dimensions, etc. , and the drawings should be proportional.
3.9 Lightning Protection and Safety Connection Diagram (1) Lightning Protection Layout Diagram
Drawing the roof plan of a building (structure) should have the main axis number, size, elevation, lightning rod, lightning belt and down lead position. Indicate the material model and specification, and the standard drawing number and page number involved.
(2) Grounding Layout
(1) Draw the grounding plan, and draw the plane positions of down lead, grounding wire, grounding electrode, test point, disconnect card, etc. , indicate the material model, specification, relative size, etc. And the number and page number of the standard drawing involved. When using the natural grounding device, it should be drawn according to the structural condition diagram.
(2) in addition to lightning protection grounding, other work or safety grounding methods (such as power grounding, DC grounding, total equipotential, local equipotential connection, etc.). ), if the grounding device is used, it should be clearly stated in the grounding plan or design description.
(3) When steel bars in reinforced concrete of buildings are used as lightning receptors, down conductors and grounding devices, the connection points, grounding resistance test points, positions and practices of embedded parts shall be marked, and the number and page number of the standard drawings involved shall be marked.
④ The attached drawings shall include: lightning protection types and lightning protection measures (including direct lightning protection, radio wave intrusion lightning protection and electromagnetic pulse lightning protection); Types and material requirements, laying methods and grounding resistance requirements of lightning protection grounding devices. The content of this article can also be described in the construction design description.
3. 10 air defense basement
(1) The location of the civil air defense duty room shall be agreed with the architectural specialty. (2) Draw the control schematic diagram of power distribution system and air defense ventilation mode.
(3) Draw the layout of ventilation signal and call button, indicate the installation height of equipment, and draw the line direction (including control line).
(4) Draw the layout of power distribution and lighting.
(5) The drawing number and page number indicating the details of protective sealing or sealing treatment. 3. 1 1 calculation sheet (internal use and filing)
The construction drawing calculation book only supplements the parts that should be calculated but not calculated during the preliminary design, and modifies the parts that need to be recalculated after the preliminary design review and change.
4. Weak current design documents of the overall project 4. 1 drawing directory
First list the newly drawn graphics, and then list the selected standard graphics or reused graphics. Design modification drawings and modification notices shall be included in the drawing catalogue.
4.2 Construction design description, supplementary legend symbols and main equipment list (1) Construction design description (detailed requirements) (2) Supplementary legend symbols and main equipment list.
The list of main equipment can be classified according to each weak current project, indicating the name, unit and quantity of main equipment. 4.3 Weak current engineering system diagram
Draw the overall system block diagram of each weak current project related to the general flat pipe network, indicate the corresponding relationship of each system in each building (structure), and indicate the connection number, line model, specification and laying method.
4.4 weak current general drawing
(1) Mark the name or number of the building (structure), number of floors or elevation, mark the elevation or contour of the road, terrain and planning red line, and mark the total capacity of each system.
(2) Mark the route direction, system name, pipeline specification and laying method of each system related to the general layout pipe network (you can choose the relevant pages and options of the standard atlas).
(3) Mark the position and number of the system front-end header (general equipment) related to the general flat pipe network. (4) Proportion and compass.
(5) Items that cannot be clearly expressed in the drawings or need unified explanation. 4.5 Detailed drawing
Draw the profile of pipeline layout and the laying of main line sections, etc.
4.6 Lead out weak current (automatic fire alarm system, communication system, cable TV system, etc.). ) the layout of auxiliary rooms for general huxing;
5. Weak current construction design documents of single project 5. 1 drawing directory
First list the newly drawn graphics, and then list the selected standard graphics or reused graphics. Design modification drawings and modification notices shall be included in the drawing catalogue.
5.2 Construction design description, supplementary legend symbols and main equipment list
Construction design description, supplementary legend symbols and main equipment list can form the home page. When there are many supplementary legend symbols and major equipment lists, this table can be placed on the second page.
(1) Description of construction design (clear requirements) (2) Supplementary legend symbols and list of main equipment.
The list of main equipment can be classified according to each weak current project, indicating the name, unit and quantity of main equipment. 5.3 Weak current general plan (which can also be represented in the electrical general plan) (see 4.4) 5.4 Various weak current engineering system plans (1) Automatic fire alarm system (2) Communication system (3) Cable TV system (4) Building protective door intercom system (5) Safety prevention system (6) Closed-circuit monitoring TV system (7) Integrated wiring system.
(8) Building equipment monitoring system and system integration (9) Garage management system (10) Cable broadcasting system (1 1) Sound reinforcement and simultaneous interpretation system (12) Call signal system (13) Public display system (65433
(15) Three-meter (multi-meter) automatic remote transmission metering system.
Draw the above related system diagram, and indicate the location, quantity and pipeline laying requirements of each equipment; (The building equipment monitoring system is drawn to DDC station, and the attached drawings illustrate the monitoring requirements, quantity, location and system integration requirements of all building equipment).
5.5 floor plan
(1) The automatic fire alarm system, communication system of residence, cable TV system and intercom system of building shall draw the floor plan, which shall include the layout and connection of equipment and devices, line type, specification and laying requirements.
(2) Other systems draw the floor plan of each layer according to the specific conditions of the project.
(3) The arrangement of plan numbers should start from the lowest floor and end at the top floor of the building (structure). 5.6 detailed drawing
(1) Schematic diagram of equipment layout in control room of weak current project
Draw the schematic diagram of the equipment layout of the main control room of each weak current project, mark the room name, mark the equipment installation method, positioning size, etc. (If the drawing expression is complete and clear, it can be drawn in the corresponding plan);
(2) shaft details
Should include building doors and windows, walls, axis, main dimensions, shaft name, drawing equipment layout, indicating equipment number, installation method, positioning size, etc. The drawings should be in proportion.
5.7 Review the deepening design drawings provided by the system integrator. II. General Description Requirements 1 Engineering Overview and Design Basis 1. 1 Architectural Overview.
1. 1. 1 building fire protection category, area, number of floors, nature, civil air defense level, engineering type and garage category; 1. 1.2 fire hazard classification of articles produced in factories and stored in warehouses; 1. 1.3 Division of explosion and fire hazard environment areas;
1. 1.4 outdoor fire water consumption of factories, warehouses and low-rise public buildings. 1.2 Reply of relevant functional departments to the engineering design or requirements put forward by the owner. 2 Design scope
2. 1 electrical professional design content.
2.2 According to the design depth requirements, the design should be carried out simultaneously. If there are any omissions, the reasons must be explained. 2.3 Clear the scope of division of labor for cooperative design projects. 3 Load level and power supply
3. 1 Power load levels shall be classified as Grade I load and Grade II load respectively.
3.2 Circuit number and voltage level of external power supply, dedicated line or non-dedicated line, and whether low-voltage power supply is internal substation or public transformer. 3.3 Capacity and startup mode of self-provided generator. 4 Substation
4. 1 Main wiring form and operation mode of high and low voltage system.
4.2 Types of relay protection devices and their selection principles, as well as the configuration of operating power supply. 4.3 Measures to prevent parallel operation of emergency power supply and normal power supply.
4.4 Measurement method: high supply and high quantity, high supply and low quantity, low supply and low quantity, centralized electricity meter. Power factor compensation mode.
5 Line laying
5. 1 Distribution line laying mode, conductor crossing requirements, number and diameter selection. 5.2 Requirements for laying wires and cables in metal trunking and laying cables in bridge.
5.3 Requirements for fire blocking and zoning of distribution lines crossing floors and zones, and fire prevention measures for laying cables crossing deformation joints in high-rise buildings.
5.4 Fire prevention measures for fire protection distribution lines.
5.5 Requirements for laying lines in explosion and fire hazard environment. 6 equipment installation
6. 1 Installation of transformer and HV/LV cabinet in substation.
6.2 Selection, installation method and installation height of lighting control switches, sockets, lamps and distribution boxes, and protection level requirements of electrical equipment in special places.
6.3 Installation requirements of large lamps and lanterns. 7 lightning protection
7. 1 lightning protection category of buildings.
7.2 Measures for building protection against direct lightning, lightning wave invasion and lightning electromagnetic pulse.
7.3 GB 50057-94 Lightning protection measures for lightning protection buildings of the first category and lightning protection measures for lightning protection buildings of the second category specified in Article 2.0.3, paragraphs 4, 5 and 6.
7.4 Material and laying requirements of lightning arrester, down lead and grounding device. 7.5 Requirements for lightning protection and grounding resistance. 8 grounding
8. 1 Grounding type of low-voltage distribution system (TN-S, TN-C-S, TT, IT), and requirements for resistance value of grounding device.
8.2 The PE and PEN wires of power supply incoming line shall be repeatedly grounded.
8.3 Grounding requirements for neutral wire at the output end of uninterruptible power supply, metal cable tray, metal bracket in cable trench and lamps with a height less than 2.4m from the ground.
8.4 Grounding requirements for weak current system.
8.5 Requirements for setting total and local equipotentials. 9 civil air defense
9. 1 civil air defense power load level and standby power supply.
9.2 Handling requirements for laying distribution lines and crossing protective airtight walls. 9.3 Repeated grounding requirements for power supply in civil air defense area. 10 automatic fire alarm system
10. 1 class system protection object, location of fire control room. 10.2 fire linkage and monitoring requirements.
10.3 the relationship between the main and standby power amplifier capacity of fire emergency broadcasting and background music broadcasting. Or the configuration and installation mode of fire alarm device.
10.4 requirements for setting fire-fighting special telephone.
10.5 installation position and height of system equipment.
10.6 Selection, laying mode and fire prevention measures of fire fighting, communication and alarm lines. 1 1 CATV system
1 1. 1 user terminal configuration standard and output level value. 1 1.2 Route selection and laying method. 1 1.3 Equipment installation mode and height. 12 telephone system
12. 1 user terminal configuration standard and location of telecom room. 12.2 line selection and laying mode. 12.3 equipment installation mode and installation height. 13 integrated wiring system
13. 1 design standard of integrated wiring system. 13.2 Location of floor wiring room and integrated wiring room. 13.3 cable selection and laying mode.
13.4 equipment selection, installation method and installation height. 14 closed-circuit television system
14. 1 CCTV system configuration standard. 14.2 line selection and laying mode. 14.3 equipment installation mode and installation height. 15 security intercom system
15. 1 intercom system configuration standard. 15.2 line selection and laying mode. 15.3 equipment installation mode and height. 16 general design description
16. 1 total electricity consumption, telecom capacity, TV terminal capacity, etc. 16.2 laying mode of electrical lines.
16.3 Minimum spacing requirements when electrical lines and trenches cross other professional pipelines and trenches in parallel. 16.4 Protective measures for laying electrical lines under the driveway.
16.5 grounding requirements for outdoor underwater lighting, music fountain pump and other power distribution safety protection.
16.6 pipeline selection, laying and grounding requirements for outdoor lighting such as road lighting, courtyard lighting and floodlighting.
16.7 grounding requirements for power cable trench supports. 17 others
17. 1 The construction shall be carried out in strict accordance with the relevant national construction quality acceptance specifications and construction technical operation procedures. 17.2 Other contents that need to be explained.
Note: 1. The requirements of this instruction are applicable to the electrical design and construction drawing documents of newly built, rebuilt and expanded civil and general industrial buildings.
2. This manual requires that the terms related to the project can be selected according to the nature of the project.
3. If clauses 7, 8 and 10 in this specification have been expressed in the design system diagram and floor plan, they can be briefly described.