This book is a national planning textbook for general higher education (higher vocational education) in the 11th Five-Year Plan.

This book is divided into fourteen chapters. The main contents of the book include: the operation mode of neutral point in power system; Basic knowledge of arc and electrical contact; Functions, working principles, structural features and uses of fuses, high-voltage switchgear, transformers, busbars, insulators and power cables, power capacitors and reactors, and low-voltage electrical appliances [1]? Know the main points; Understand the types, wiring characteristics and applications of main electrical wiring and self-use electrical wiring; Functions, types and technical requirements of power distribution devices and grounding devices; Practical calculation of short circuit effect of electrical equipment and practical method of electrical equipment selection.

This book is mainly used as a teaching material of electric power technology in higher vocational colleges, and it is also a teaching material of electric power vocational qualification and post skill training, which is for the reference of workers and technicians engaged in the installation, operation and maintenance of electrical equipment in electric power enterprises.

2. Electrician foundation

Introduction: The series of teaching materials for pre-job training of employees in grass-roots power supply enterprises are compiled according to the professional ability training standards of production technicians of State Grid Corporation of China and combined with production practice. This set of textbooks has 14 volumes, of which 3 volumes are practical textbooks. This book is a series of teaching materials for pre-job training of employees in grass-roots power supply enterprises.

The book Fundamentals of Electrotechnics consists of five units, including DC circuit, electromagnetism and electromagnetic induction, single-phase sinusoidal AC circuit, three-phase sinusoidal AC circuit and circuit transition process.

"Electrician Basis" can be used as a training book for new employees, demobilized soldiers and production technicians in grass-roots power supply enterprises to improve their professional ability, and can also be used as a reference for teaching in electric power vocational colleges.

3. Electrical equipment maintenance skills training

The book Electrical Equipment Maintenance Skills Training (CD attached) is divided into two units, 13 module, * * * 2 1 operation training project. Its main contents include: electrical operation safety knowledge, common tools and instruments, lifting and handling, reading of electrical engineering drawings, installation and maintenance of low-voltage wiring, installation of common low-voltage appliances and control circuits; Maintenance skills of high voltage switch, transformer, motor, DC power supply, bus and cable.

"Electrical Equipment Maintenance Skills Training (CD attached)" can be used as a practical teaching material for electrical majors in secondary and higher vocational schools, and can also be used as a skill training book for personnel engaged in the manufacture, installation, operation and maintenance of electrical equipment in electric power, metallurgy, chemical industry and other industries.

4. "Electrical Technology Practice"

"Electrician Technical Practice" is divided into five parts, the main contents of which are: electrician basic knowledge, electrician basic skills training, low-voltage wiring and indoor lighting circuit installation and operation training, low-voltage control circuit installation and operation training, and distribution circuit installation and operation training.

"Electrician Practice" can be used as a teaching material for electric power technology majors in higher vocational and technical colleges of electric power, junior colleges and adult colleges, as well as a teaching material for on-the-job training of electric power workers, rural labor force transfer training and rural practical technical training, as well as a reference book for relevant engineers and technicians.

5. "Electrician's Common Sense"

This book is written according to the teaching outline of electrician common sense in the newly revised "Teaching Plan and Teaching Outline of Mechanical Technician School" by the Ministry of Machinery Industry.

The contents of this book include the basic concepts, basic laws, practical circuits, electronic technology and safe use of electricity.

The content of this book is the most basic electrician knowledge that students engaged in cold work in technical schools need to master, and its purpose is only to enable students to protect themselves, protect equipment and save energy.

: electrician common sense:

1. Before decoration, there must be (strong current and weak current) construction drawings, and electrical engineering completion drawings shall be provided upon completion.

2, electrical installation construction personnel should hold relevant certificates.

3, wiring should be color separation, phase line (L) color should be unified, zero line (N) should be black, protection line (PE) must be yellow and green.

4, plastic wire protection tube and junction box appearance should not be damaged and deformed.

5. Generally, the pipes are 4 branches (DN 15) and 6 branches (DN20). The wall thickness of smooth pipes is 2 .0 0.3mm, and there are no more than 4 threads.

6. Ordinary appliances are equipped with 2.5mm2 copper wire. High-power electrical appliances such as air conditioners should be equipped with 4mm2 or 6mm2 copper conductors.

7, high voltage lines and weak current lines are prohibited to wear in the same casing.

8, the same indoor power supply, telephone, television and other sockets should be at the same level elevation, the height difference should be less than 5 mm. ..

9. When installing lamps and lanterns, all design and installation fixing points of lamps and lanterns must be fixed.

10. Installation of the junction box in the ceiling: the junction box shall be located at any position where leads and wiring are required. And shall not be fixed on the wooden keel, should be fixed at the top.

1 1, when the downlight needs to be opened, the position of the main keel should be verified to avoid cutting and damaging the keel.

12, lighting lamps and lanterns should be equipped with separate switches, and the lamps of each lighting circuit should not exceed 2KW (excluding lanterns), and the combined lamps can be controlled in groups.

13, when the ordinary chandelier uses the cord itself as the suspension. Only applicable to lamps with mass lower than 1kg. For lamps above 1kg, the hanging chain must be used, and the flexible cord is not stressed.

14. Determine the pipeline direction, elevation and switch according to the position of electrical equipment. Before slotting, mark the position of socket and locate it.

The depth of the wall (ground) groove shall ensure that the concealed pipeline is not exposed after repair and does not damage the stressed steel bar.

15. When the pipeline length exceeds 15 m or there are two right-angle bends, cable boxes should be added.

16, lines with different voltages, different circuits and different signals are strictly prohibited to be set in the same tube. Wires in the same circuit should be inserted into the same pipe.

17, grounding protection must be in place, and shall not be misplaced or omitted from the zero line.

18, the pipeline in the ceiling should be fixed at the top with a line card, and the junction box should be fixed with a wooden wedge and nails. Shall not be placed on the keel or fixed on the derrick without fixed measures.

19, the opening of the threading pipe and the junction box are fixed with lock nuts, and frontal approach is prohibited. The threading tube is not easy to fall off, the wire is easy to pull, and the insulation layer is not damaged.

20. Where water is used in kitchens, bathrooms, laundry rooms, etc., threading pipes and accessories are connected with special glue, which is tightly sealed, and no water can enter.

2 1, the wire connection can be soldered or tinned after crimping with crimping cap, which is not suitable for splicing. Temporary splicing must be wrapped with tape. If the crimping conditions are not met, the splicing place must be wrapped with high-pressure waterproof tape.

22. When using armored cord, the connection part should be brushed with tin.

23. Sockets and switch panels are strictly prohibited near the bathing area 1000㎜.

24. When Yuba is installed, the wooden keel of the fixed frame must be coated with fire retardant paint. Special accessories are used for lifting points.

25. Where is the circuit arranged to wear hoses and hard pipes? Except for the wall top structure that does not have the conditions to wear hard pipes, all circuit reconstruction parts need PVC flame-retardant hard pipes. Only in the part where the lamp position needs to be connected, it is allowed to wear PVC flame-retardant hose, and its length shall not be greater than1000 mm.

26, light steel keel gypsum board partition pipe, horizontal cloth pipe can pass through the keel, need to turn vertically, must knock down the hole on the keel or punch separately.

27. The junction box and threading tube must be made of the same material. The use of iron pipes and iron junction boxes must be bridged.

28. When installing spotlights, the guide rails and brackets must be attached tightly, and the lamp holder is seamless with the top surface.

29. When the light bulb power is below 100W, you can use a plastic lamp holder. The lamps above 100W and moisture-proof enclosed lamps should use porcelain lamp holders.

30. When the fluorescent lamp is hidden, the position of its accessories should be easy to maintain.

3 1, if the ground wiring is not carried out at the same time as the floor tile or floor tile laying, the wiring pipeline must be protected with cement to prevent the pipeline from being fractured.

32. When installing lighting appliances on brick-concrete structures, embedded hooks, expansion bolts, nylon expansion pipes or plastic expansion pipes should be used for fixing, and wooden wedges are strictly prohibited.

33, when the chandelier lamps and lanterns weight is greater than 3kg, embedded hook or bolt should be adopted. The bearing capacity of fixing parts should match the weight of electric lighting appliances, and the connection with the structural surface must be firm.

34, lamps and lanterns shall not be directly installed on combustible components.

35, wire, telephone, TV connector must use professional connector card.

36. When starting work, remove all switches and sockets, and protect all screws and nuts. The thread ends are wrapped with adhesive tape and then plugged back to facilitate coating construction.

37, strong and weak current can't mix tube or borrow box transition.

38, metope wiring need to slot, slot size uniform, consistent depth.

39, wire in the tube should not have joint and kink, joint should be located in the junction box.

40, the construction personnel shall not modify the TV recording system, should let the customer please related professionals to modify.

4 1. After other decoration is completed, the electrician construction personnel will install the electrical switch and panel. Prior to this, after the power test, the wire ends were wrapped with insulating tape, and then various installations were carried out after the completion.

42, all kinds of junction boxes, sockets, there should be no gaps around the panel, the cover plate should be correct, installed firmly, close to the wall, the panel is pollution-free, clean and tidy.

43, water pipes and metope must be fixed firmly, firmly. One fixed card every 60cm.

44, wire in the ceiling can't disorderly pull the place, after piping, its direction should be according to the Ming piping, be horizontal and vertical, in the junction box of piping or the corner on both sides should be set symmetrical hanging bracket fixed wire tube, or use line card to fix the piping at the top, under the junction box can also be punched wedge, fixed with nails. Shall not be placed on the keel or fixed on the derrick without fixed measures.

45, wire in the junction box should have a certain margin, generally it is advisable to have a 200mm length margin.

References:

Baidu encyclopedia-electrician