Читать фрагмент

книга

Безопасность жизнедеятельности

Учебное пособие предназначено для студентов, магистрантов, аспирантов, изучающих английский язык и для изучения безопасности жизнедеятельности как учебной дисциплины. В учебном пособии содержатся теоретические основы безопасности жизнедеятельности, рассматриваются условия, определяющие отсутствие вредности для организма человека, воздействие электрического тока на человека. Перечислены меры защиты от вредоносных и опасных факторов. Также книга содержит сборник заданий.Пособие может быть использовано для перевода технических и научных текстов в рамках дисциплины «Иностранный язык для профессионального общения».

Форматы: PDF

Издательство: Инфра-Инженерия

Год: 2024

Место издания: Москва, Вологда

ISBN: 978-5-9729-1998-7

Страниц: 108

Артикул: 117772

Возрастная маркировка: 16+

Электронная книга

520 ₽

Купить и скачать

Содержание

Содержание книги "Безопасность жизнедеятельности : теория и практика"

CONTENTS INTRODUCTION

1. Theoretical basis of life safety

1.1. «Human - technology - environment» system: general description

1.2. «Human - technology - environment» system model

1.3. The effectiveness of the security system

1.4. The cost of security system

1.5. Danger and it’s sources. Quantitative characteristic of the danger. The concept of acceptable risk

1.6. The concept of security. Security Systems. Principles and methods of safety ensuring

2. WORKING CONDITIONS

2.1. The microclimate of industrial premises

2.2. Harmful substances

3. MANUFACTURING ILLUMINATION

3.1. Types of manufacturing illumination

3.2. Sources of artificial lighting

3.3. Luminaire

4. NOISE OF ELECTRICAL MACHINES

4.1. An effect of the noise on the body

4.2. Noise of rotating electrical machines

4.3. Noise of transformers

5. THE EFFECT OF AN ELECTRIC CURRENT ON A HUMAN BODY

5.1. Modern ideas about the mechanism of electrical injuries

5.2. Electrical parameters of the human body

5.2.1. General characteristics and assessments

5.2.2. Threshold Voltages

5.2.3. Threshold currents

6. TECHNICAL METHODS OF ENSURING THE SAFETY OF OPERATION OF ELECTRICAL INSTALLATIONS

6.1. Safety analysis of electrical installations

6.2. Protective grounding

6.3. Zeroing out

6.4. Control and prevention of insulation damage

7. ENSURING FIRE SAFETY IN POWER-SUPPLY SYSTEMS

7.1. Ensuring fire safety at the ODD (open distribution device)

7.2. Fire safety of cable rooms

8. COLLECTION OF TASKS

8.1. Risk analysis of electric shock in networks with different neutral conditions

8.2. Tasks

APPENDIX

BIBLIOGRAPHIC LIST

Отрывок из книги

14 the severity of this harm. Aggregate risk integrates several diverse concepts of risk (health, ecological, property damage). The procedure for determining the risk is very approximate. There are four me-thodical approaches to the definition of risk: 1) engineering, based on statistics, frequency calculation, probabilistic safety analysis, construction of trees of danger; 2) model, based on building models of the impact of harmful factors on an indi-vidual, social, professional groups, etc.; 3) expert, when the probability of various events is determined on the basis of a quiz of experienced specialists, i.e. experts; 4) sociological, based on a quiz of the population. The traditional safety technique is based on the categorical imperative: to ensure safety, to prevent any crash. As practice shows, such a concept is inadequate to the laws of the technosphere. The demand for absolute security, bribing with its humani-ty, can turn into a tragedy for people, because it is impossible to ensure zero risk in existing systems. The modern world rejected the concept of absolute security and came to the concept of acceptable (permissible) risk, the essence of which is the de-sire to achieve such a small danger that society will accept in this period of time. Acceptable risk combines technical, economic, social and political aspects and represents a certain compromise between the level of security and the possibilities for achieving it. First of all, it must be borne in mind that the economic opportunities for increasing the security of technical systems are not unlimited. Spending excessive funds on improving security can damage the social sphere, for example, worsen med-ical care. Fig. 1.4. Determination of acceptable risk (RA) Fig. 1.4 shows a simplified example of the definition of acceptable (permissible) risk: it can be seen that with increasing security costs, the technical risk of R୘ is de-Socio-economic risk RSE Technical risk RɌ Security costs Risk of d...

Внимание!
При обнаружении неточностей или ошибок в описании книги "Безопасность жизнедеятельности : теория и практика (автор Александр Сидоров, Ольга Ханжина)", просим Вас отправить сообщение на почту help@directmedia.ru. Благодарим!

Безопасность жизнедеятельности

Содержание

Отрывок из книги

Сидоров А. И. другие книги автора

С книгой "Безопасность жизнедеятельности" читают