New Terms and Definitions under the New Work Health and Safety Harmonisation Laws
Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and...
-
Upload
reynold-carpenter -
Category
Documents
-
view
217 -
download
0
Transcript of Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and...
![Page 1: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/1.jpg)
CPCPGS3001AInstall Gas Piping Systems
Types of Gases
![Page 2: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/2.jpg)
Work Health & Safety:
New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012
• Workbook pg. 4
![Page 3: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/3.jpg)
Gas Safety:
• PPE
• Electrical Safety
• Workbook pgs. 5 - 17
![Page 4: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/4.jpg)
S I Units of Measure (Standard International Units of Measure)Workbook Pg. 18
S I Unit How to read it Used to measure
kPa Kilopascal Pressure
m³ Cubic metre Volume
MJ Megajoule Quantity of heat (energy)
MJ/h Megajoule per hour Heat per hour
mm Millimetre length
![Page 5: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/5.jpg)
Combustion Principles
• Combustion is the term used for the burning of a fuel in air.
Workbook pg. 8
![Page 6: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/6.jpg)
Combustion Principles
• 3 elements are required for combustion to take place.
Workbook pg. 8
![Page 7: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/7.jpg)
Combustion Principles
• Fuel
• Air (the Oxygen contained in air)
• Heat (Ignition)
Workbook pg. 8
![Page 8: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/8.jpg)
Combustion Principles
• Once ignition has taken place, the combustion process is self-sustaining providing a combustible mixture of gas and air is maintained.
See next slide
Workbook pg. 8
![Page 9: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/9.jpg)
Combustion Principles
• Complete combustion Click to reveal
O2
O2
C3H8
CO2H2O
Heat
![Page 10: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/10.jpg)
Combustion Principles
• Incomplete combustion Click to reveal
O2
O2
C3H8
COH2O
Heat
![Page 11: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/11.jpg)
Combustion Principles
• Incomplete combustion produces carbon monoxide
• Carbon monoxide is a poisonous gas.
CO
![Page 12: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/12.jpg)
Combustion Principles
Major causes of incomplete combustion
• Gas flow to high to burner• Insufficient air to burner• Blocked or restricted flue• Poor ventilation
CO
![Page 13: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/13.jpg)
Types of Gases
Natural Gas (NG)Workbook pg. 19
• Natural gas is approximately 75 – 95 % Methane a hydrocarbon gas.
• Its molecular structure is made up of carbon and hydrogen CH4
See next slide
![Page 14: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/14.jpg)
H
H
H
H
H
C
Natural Gas
CH4
![Page 15: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/15.jpg)
Types of Gases
Liquefied Petroleum Gas (LPG)Workbook pg. 19
• Propane a hydrocarbon gas can be found in crude oil extraction and is also produced from crude oil refining.
• Propane is liquefied by refrigeration and pressurisation.
• Its molecular structure is made up of carbon and hydrogen C3H8
See next slide
![Page 16: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/16.jpg)
HH
H
H
C
H
Propane (LPG)
C3H8
H
H
HHH
H
H
C C C
![Page 17: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/17.jpg)
Characteristics and Properties of Gases
Heating Value:
• The approximate heat energy (MJ) available in a known quantity of gas.
• NG – 38 MJ /m³
• LPG – 96 MJ/m³
Workbook pg. 19
![Page 18: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/18.jpg)
Characteristics and Properties of Gases
Relative density:
• The weight of gas compared to air.
• NG – 0.6 = lighter than air
• LPG – 1.5 = heavier than air
Workbook pg. 20
![Page 19: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/19.jpg)
Characteristics and Properties of Gases
Ignition Temperature:
• The minimum temperature that gas will ignite.
• NG – 680 ºC
• LPG – 490 ºC
Workbook pg. 20
![Page 20: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/20.jpg)
Characteristics and Properties of Gases
Air – Gas Ratio:
• The quantity or volume of air required for complete combustion.
• NG – 10:1 - 10 parts air to 1 part gas.
• LPG – 24:1 – 24 parts air to 1 part gas
Workbook pg. 20
![Page 21: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/21.jpg)
Characteristics and Properties of Gases
Toxicity:
• Are fuel gases poisonous ? (toxic)
• NO …… however
Workbook pg. 22
![Page 22: Work Health & Safety: New Work Health and Safety (WHS) laws replaced the occupational health and safety (OHS) laws in NSW on 1 January 2012 Workbook pg.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649ea15503460f94ba4931/html5/thumbnails/22.jpg)
Characteristics and Properties of Gases
Toxicity:
• Are fuel gases poisonous ? (toxic)
• NO …… however
Workbook pg. 22