Electrical Safety
Description: The discipline is necessary for the training of power engineers in the field of operation, maintenance and repair of electrical equipment. Study : Danger of electric shock. The effect of electric current on the human body. Factors affecting electric shock. Types of electric shock. Protective measures in electrical installations. Safe maintenance of electrical installations. Classification of work in electrical installations.
Amount of credits: 3
Пререквизиты:
- Lighting System Design
Course Workload:
| Types of classes | hours |
|---|---|
| Lectures | 15 |
| Practical works | 15 |
| Laboratory works | |
| SAWTG (Student Autonomous Work under Teacher Guidance) | 15 |
| SAW (Student autonomous work) | 45 |
| Form of final control | Exam |
| Final assessment method | а written exam |
Component: Component by selection
Cycle: Profiling disciplines
Goal
- Study of the basic provisions on electrical safety.
Objective
- mastering theoretical information about the danger of electric shock, safety measures and acquiring practical skills in safety techniques when working with electrical installations.
Learning outcome: knowledge and understanding
- know the factors affecting electric shock
- know the physical basics of short-circuit modes; operating modes of neutral electric networks
Learning outcome: applying knowledge and understanding
- Know the safety rules for the operation of electrical installations. Organizational and technical measures to ensure the safety of work.
- Know the operating and emergency modes of electrical installations
Learning outcome: formation of judgments
- Comply with environmental safety at work, participate in the development and implementation of environmental protection measures and measures for energy and resource conservation at work
Learning outcome: communicative abilities
- be able to perform practical calculations: Have the skills to determine the step voltage, touch voltage, grounding device, zeroing; -by the device of lightning rods, - by determining the magnitude of currents flowing through a person in different conditions and determining the degree of their danger;
Learning outcome: learning skills or learning abilities
- Have the skills to release the victim from the action of electric current; to provide first aid to the victim; rapid assessment of dangerous situations with regard to electric shock; safe work in electrical installations and in everyday life.
Teaching methods
When conducting training sessions, it is planned to use the following educational technologies: - The methods (technologies) of teaching used in the course of teaching the discipline are indicated. Among the effective pedagogical methods and technologies that contribute to the involvement of students in the search and management of knowledge, the acquisition of experience in solving various tasks independently, it is necessary to highlight: - technologies of problem- and project-oriented learning; - technologies of educational and research activities; - communication technologies (discussion, press conference, brainstorming, educational debates, etc. other active forms and methods); -the method of case studies (situation analysis); - game technologies in which students participate in business, role-playing, simulation games; - information and communication (including distance education) technologies.
Assessment of the student's knowledge
Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.
| Period | Type of task | Total |
|---|---|---|
| 1 rating | Danger of electric shock. | 0-100 |
| The nature of the spreading of the earth fault current. The concept of step stress | ||
| Classification of electrical installations. | ||
| The danger of networks with a dead-earthed neutral. | ||
| Touch protection measures | ||
| Calculation of the grounding device of the shop substation | ||
| Neutral earthing. Protective shutdown | ||
| Overvoltage in electrical installations | ||
| Testing | ||
| 2 rating | Complex of lightning protection means | 0-100 |
| First aid to victims of electric current. | ||
| Resuscitation, methods of reviving the victim from the action of the current | ||
| Safety rules for the operation of electrical installations. | ||
| Work on the side and disposa | ||
| Protective equipment in electrical installations above 1 kV | ||
| Protective equipment in electrical installations up to 1 kV | ||
| Testing | ||
| Total control | Exam | 0-100 |
The evaluating policy of learning outcomes by work type
| Type of task | 90-100 | 70-89 | 50-69 | 0-49 |
|---|---|---|---|---|
| Excellent | Good | Satisfactory | Unsatisfactory |
Evaluation form
The student's final grade in the course is calculated on a 100 point grading scale, it includes:
- 40% of the examination result;
- 60% of current control result.
The final grade is calculated by the formula:
| FG = 0,6 | MT1+MT2 | +0,4E |
| 2 |
Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;
E is a digital equivalent of the exam grade.
Final alphabetical grade and its equivalent in points:
The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:
| Alphabetical grade | Numerical value | Points (%) | Traditional grade |
|---|---|---|---|
| A | 4.0 | 95-100 | Excellent |
| A- | 3.67 | 90-94 | |
| B+ | 3.33 | 85-89 | Good |
| B | 3.0 | 80-84 | |
| B- | 2.67 | 75-79 | |
| C+ | 2.33 | 70-74 | |
| C | 2.0 | 65-69 | Satisfactory |
| C- | 1.67 | 60-64 | |
| D+ | 1.33 | 55-59 | |
| D | 1.0 | 50-54 | |
| FX | 0.5 | 25-49 | Unsatisfactory |
| F | 0 | 0-24 |
Topics of lectures
- Introduction
- The nature of the spreading of the earth fault current
- Classification of electrical installations
- The danger of networks with a dead-earthed neutral
- Touch protection measures
- Grounding devices in networks with effectively grounded neutral voltage above 1 kV
- Neutral earthing
- Overvoltage in electrical installations
- A set of lightning protection tools
- First aid to victims of electric current
- Resuscitation, methods of recovery
- Work on orders and orders
- Work on the side and the order
- Protective equipment in electrical installations
- Protective equipment in electrical installations
Key reading
- 1 Sibikin, Yuri Dmitrievich. Electrical safety in the operation of electrical installations of industrial enterprises: textbook / Y. D. Sibikin, M. Y. Sibikin, 2015. 2 Rules for the installation of electrical installations of the Republic of Kazakhstan/ Ministry of Energy and Mineral Resources of the Republic of Kazakhstan. – Astana.: 2015. 3 Safety regulations for the maintenance of electrical installations of consumers. - Astana.:2008
Further reading
- 1 Labor protection in the energy sector./Knyazevsky B.A. - M.: Energoatomizdat, 2005. 2 Labor protection in electrical facilities of industrial enterprises. /Chekalin N.A., Polukhina G.N., Chekalina S.A. - M.: Energoatomizdat, 2010. 3 Rules of technical operation when servicing electrical installations of consumers. /Ministry of Energy and Mineral Resources of the Republic of Kazakhstan. –Astana.: 2012. 4 Safety regulations for the maintenance of electrical installations of consumers. /Ministry of Energy and Mineral Resources of the Republic of Kazakhstan. –Astana.: 2012.
