Ergonomics principles and guidelines
Download
1 / 18

T l charger - PowerPoint PPT Presentation


  • 260 Views
  • Uploaded on

UNSW SCHOOL OF PHYSICS OHS MANAGEMENT SYSTEM. Ergonomics Principles and Guidelines . For Area OHS Supervisors. Based on UNSW Ergonomics Principles and Guidelines. WHAT IS ERGONOMICS?. ERGONOMICS is the scientific study of human performance at work. WHY IS IT IMPORTANT?.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'T l charger' - Antony


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Ergonomics principles and guidelines l.jpg

UNSW SCHOOL OF PHYSICS OHS MANAGEMENT SYSTEM

Ergonomics Principles and Guidelines

For Area OHS Supervisors

Based on UNSW Ergonomics Principles and Guidelines


What is ergonomics l.jpg
WHAT IS ERGONOMICS?

ERGONOMICS is the scientific study of human performance at work

WHY IS IT IMPORTANT?

Application of ergonomics principles to work practices allows prevention and control musculoskeletal injuries arising from repetitive or forceful movement or/and maintaining awkward or constrained postures


Examples of musculoskeletal disorders l.jpg
Examples of Musculoskeletal Disorders

Injuries: sprains, strains, tears, degeneration

Symptoms: discomfort, pain, muscle fatigue, swelling, stiffness, inflammation, numbness, tingling, burning sensation, heaviness, weakness or clumsiness in hands

Disorders: Repetitive strain injury, Occupational overuse syndrome, Tendonitis, Carpal tunnel syndrome, Degenerative disc disease, etc


Area ohs supervisor s responsibilities l.jpg
Area OHS Supervisor’s Responsibilities

  • Implementing and maintaining ergonomic principles

  • Ensuring that people in your area are properly trained in ergonomic principles

  • Ensuring that people in your area follow safe ergonomic practices

  • Actively practicing and developing positive attitudes towards ergonomic issues

  • Ensuring that people in your area use the ergonomic equipment provided

  • Considering workplace layout, ergonomics and individual needs when allocating tasks to people in your area


Responsibilities of individuals l.jpg
Responsibilities of Individuals

  • Complying with ergonomic safety instructions of their Area OHS Supervisors

  • Not putting themselves or other at risk by their actions or omissions

  • Making proper use of ergonomic equipment provided

  • Using training received in applying ergonomic principles to their tasks

  • Reporting potential ergonomic hazards and problem to their Area OHS Supervisors


Work with computers what to consider l.jpg
Work with Computers: What to Consider

  • Job design

  • Work practices: work breaks, keyboarding duration, task rotation

  • Workstation: posture, chairs, desks, computer monitors, computer mouse, ergonomic accessories


Work with computers job design and task rotation l.jpg
Work with Computers: Job design and Task rotation

If possible, the job should be designed to allow rotation of work and inclusion of task not involving repetitive and dynamic muscle movement.

Work with Computers: Keyboarding

“A safe working level” of 4 hours of intensive keyboard work per day (not including breaks) should not be exceeded


Work with computers work breaks l.jpg
Work with Computers: Work breaks

Where the job does not provide adequate breaks through task variety, it is recommended that short frequent breaks should be taken during periods of intensive computer use, i.e. 2-3 minutes every 20-30 minutes. These breaks should include whole body movement. For example, fatigue in the back is relived by standing up and walking around


Work with computers posture l.jpg
Work with Computers: Posture

  • The feet are supported on the floor, or a footrest (if knees are at greater that 900 )

  • No pressure caused by the front edge of the chair seat under the thighs

  • The upper body is upright with the lower back firmly supported by the backrest

  • The shoulders are relaxed and not hunched

  • The elbows and upper arm are close to the body

  • The head is upright or slightly inclined forward with minimum of strain on the neck

  • Forearms are horizontal and the wrists are straight when the fingers are on the keyboard


Work with computers chairs l.jpg
Work with Computers: Chairs

  • Stable (a 5 star base)

  • Adjustable height range suited to the desk

  • A stable, independently adjustable backrest

  • Freely moving castors when used on carpet or glides for use on a hard floor surface

  • Armrests are not recommended as they are likely to interfere with the ability to move the chair close enough to the desk


Work with computers desks l.jpg
Work with Computers: Desks

  • Height adjustable desks are the preferred option. The height to the top if the work surface should be between 580mm and 730 mm above floor level

  • For a fixed height desk: between 680mm and 720mm

  • The minimum work surface area: 1500mm x 900mm and the maximum bench thickness – 25mm

  • The volume of leg space: minimum of 800 wide x 550mm deep x 580mm high

  • The viewing distance to work: between 350 mm and 780 mm

  • No sharp edges, protrusions or rough surfaces

  • It is recommended that work surface be continuous due to increase mouse usage, keyboard and mouse are on the same level


Work with computers monitors l.jpg
Work with Computers: Monitors

It is recommended that the screen is located

  • at approx arm’s length away from the user

  • Directly in front of the user

  • Eye level and the bottom can be read without a marked inclination of the head

  • No glare and reflections


Work with computers mouse l.jpg
Work with Computers: Mouse

To minimise fatigue when using the mouse:

  • Place the mouse on the a mouse pad to restrict the area of movement for the hand and arm

  • Ensure the mouse is used with a straight wrist

  • The mouse pad should be placed as close as possible to the keyboard to avoid over-reaching with impact on shoulder/neck muscles


Work with computers ergonomic accessories l.jpg
Work with Computers: Ergonomic Accessories

Consider the following when trying to address the ergonomic issues

  • A footrest

  • Document holder

  • Monitor stands and Monitor arms

  • Screen filter


Look out for other repetitive actions or sustained postures l.jpg
Look out For Other Repetitive Actions or Sustained Postures

Examples:

  • Laboratory tasks, e.g. pipetting

  • Workshop task, e.g. repetitive hammering, repetitive lifting

  • Electronic workshop, e.g. soldering


Environment lighting l.jpg
Environment: Lighting

Suitable light levels based on Australian Standard AS 1680 – 1990 Interior Lighting:

General background 200 Lux

Routine office work (typing, filing) 400 Lux

Work with poor contrast (proof reading) 600Lux

Overhead lighting should be fitted with glare reducing diffusers and light should fall from the side rather than from the front to avoid reflection

Windows should be on the side of the user if possible, not directly behind or in front of the screen


Work with computers ventilation l.jpg
Work with Computers: Ventilation

Air movement of less than 0.1 meter per second can lead to stuffy rooms whereas air movement of more than 0.2 meters per second causes droughts to be felt.

Australian Standard AS 1668.2 – 1991 Mechanical ventilation for acceptable indoor-air quality sets the minimum rate of 10 liters per second per person for general office space or 10 liters per second for every 10 square meters of floor space


Work with computers indoor climate l.jpg
Work with Computers: Indoor Climate

  • A comfortable temperature range for sedentary work is between 210 and 240 C

  • The optimum range of relative humidity is 40-50%. Relative humidity below 20% can cause dryness of the eyes, nose, throat and build up of static charges. Humidity above 80% can cause fatigues

  • Draughts around the neck and the feet can cause muscle contraction


ad