Insulator (Heat and Frost) Level 2

Transcription

1 Insulator (Heat and Frost) Level 2

2 Insulator (Heat and Frost) Unit: A4 Tools and Equipment II Level: Two Duration: 14 hours Theory: Practical: 7 hours 7 hours Overview: This unit is designed to provide the apprentice with general skills and of knowledge of using fastening tools and sheet metal tools and equipment. Percent of Objectives and Content: Unit Mark (%) 1. Discuss fastening tools. 30% a. Describe powder actuated tools Uses Fasteners Loads b. Use powder actuated tools Safety Operating procedures Manufacturer s recommendations 2. Discuss sheet metal tools and equipment. 70% a. Use squaring shears Safety precautions for operating shears Squaring a sheet Front gauge Back gauge Adjustments Maintenance b. Describe the uses of roll forming machines Safety precautions for operating shears Solid housing roll forming machine Slip roll forming machine Methods of forming cylindrical objects Methods of forming conical shaped objects Adjustments Maintenance c. Describe the uses of beading Safety precautions Types and uses Setting and adjusting for intended job requirements 1

3 Checking for exact roller alignment Maintenance d. Describe brakes and folders Safety precautions Types Standard hand brake Bar folder Setting and adjusting procedures Allowance and marking for folds on material Procedures when folding including safety Gauge of the metal Good housekeeping Avoiding waste *** 2

4 Insulator (Heat and Frost) Unit: B2 Trade Math and Science II Level: Two Duration: 35 hours Theory: Practical: 30 hours 5 hours Overview: This unit is designed to provide the apprentice with general skills and knowledge of trade related trigonometry, Ohms Law, heating and cooling of metals, trade related heat calculations, types of corrosion, and science related to choice of insulation material. Percent of Objectives and Content: Unit Mark (%) 1. Solve trade related trigonometry problems. 20% a. Explain trigonometry terms Pythagorean theorem and the law of right angles Hypotenuse Opposite side Adjacent side b. Explain trigonometry functions Sine Cosine Tangent c. Use trigonometry to solve problems Length of the side of a triangle given one angle and the length of one sides Rise of an elbow d. Describe angular measurement Degrees Minutes Seconds 2. Discuss the fundamentals of Ohms Law. 15% a. Describe the fundamentals of Ohms Law `voltage Resistance Amperage Polarity 3. Discuss the heating and cooling of metals. 15% a. Describe the heating and cooling of metals Methods of heat transfer 4. Discuss trade related heat calculations. 15% 3

5 a. Describe methods of measuring temperature 5. Discuss types of corrosion. 15% a. Describe types and forms of corrosion Atmospheric Electrolytic and galvanic Chemical 6. Discuss the use of science related to choice of insulation material. 20% a. Describe types of insulation Metals Glass (fibres) Plastic (jacketing, extruded foam) Cements Mastics Polyurethane b. Describe properties of insulation materials Abrasion resistance Alkalinity or acidity Breaking load Capillarity Chemical reactions Coefficient or expansion Combustibility Flash point Burning rate Rate of flame travel Smoke index Melting point Density Alkalinity and acid resistance Shrinkage Specific gravity Specific heat Thermal conductivity Thermal expansion Vapour migration Water absorption Adhesion Compaction and recovery c. Select insulation supports and fasteners Strength of materials Type of thread Corrosion factor Dissimilar metals d. Describe methods for calculating humidity Importance of considering humidity Wet bulb temperature Dry bulb temperature Relation between wet and dry bulb temperature Temperature of substrate *** 4

6 Insulator (Heat and Frost) Unit: C2 Insulation Materials and Application II Level: Two Duration: 35 hours Theory: Practical: 20 hours 15 hours Overview: This unit is designed to provide the apprentice with general skills and knowledge of the selection and use of cement and the selection of insulation materials based on specifications and drawings. Percent of Objectives and Content: Unit Mark (%) 1. Discuss the selection and use of cements. 40% a. Interpret specifications Thickness Number of coats required Type of finish required b. Describe mixing procedures Safety Manufacturer s recommendations c. Describe insulating cements Purposes Types d. Describe cement additives Purposes Types e. Describe mixing considerations Importance of correct mixing procedures Proportion of water mix Effects of freezing of wet cement Chemical reaction Allowance for shrinkage Sufficient drying time between coats f. Describe the application of reinforcements Application methods Types g. Apply insulation cement to various substrates Safety precautions Manufacturer s recommendations Mixing PPE 5

7 Housekeeping procedures Making Cleanup Mixing correct amount Cleanup of mixing equipment h. Select finishing cement Factors in selecting a finish Specification requirements Appearance Environment Exposure to damage i. Apply finishing cement to various substrates Safety precautions Additives Mixing procedures Curing time Application to substrates 2. Discuss how to select insulation materials by interpreting specification and drawings. a. Interpret drawings and specifications Location of parts to be insulated Type, size and quantity of material Purpose of insulation Type of required finish Application procedures a. Interpret drawings and specifications Fragility Flexibility Weight Density Ease of cutting and fabricating 20% 3. Apply finishing cement to various substrates according to project specifications. 40% *** 6

8 Insulator (Heat and Frost) Unit: D1 Drafting and Layout I Level: Two Duration: 35 hours Theory: Practical: 30 hours 5 hours Overview: This unit is designed to provide the apprentice with general skills and knowledge of lay out of geometric shapes, tees and equipment, use of various line developments, and develop patterns for elbows. Percent of Objectives and Content: Unit Mark (%) 1. Discuss the layout of geometric shapes. 25% a. Describe lines, lettering and layout of various geometric shapes Angles Triangles Squares Circles Ovals Ellipses Tapers b. Use layout tools T-squares Set squares 45, 30 and 60 angles Scale rulers Compass sets Splines French curves Pencils and drafting pens 2. Discuss the use of lines and symbols. 25% a. Describe line developments Straight line Parallel line Radial line Triangulation b. Describe line developments Simple layout Seam allowance Edge allowance 7

9 3. Discuss the use of lines and symbols. 25% a. Demonstrate techniques used to develop patterns for elbows 45 elbow miter development Elbow pattern development Use if the elbow rule to lay out multi-piece 90 elbows b. Describe the types of patterns used Dependant on amount of elbows required c. Lay out elbows Hems Lap Bead Crimping 4. Discuss the layout of tees and equipment. 25% a. Describe methods of obtaining a mitre line for drawing an equal tee Edge allowance b. Draw the stretch-out and patterns for an equal tee Tabs Bead Lap Hem End caps c. Obtain mitre lines for an unequal tee d. Lay out the stretch-out for an unequal tee Tabs Bead Lap Hem End caps Creating a template *** 8

10 Insulator (Heat and Frost) Unit: D4 Blueprints and Specification I Level: Two Duration: 7 hours Theory: Practical: 7 hours 0 hours Overview: This unit is designed to provide the apprentice with general skills and knowledge of blueprint lines, abbreviations and symbols, sectional and projection views, and pictorial drawings. Percent of Objectives and Content: Unit Mark (%) 1. Discuss blueprint lines, abbreviations and symbols. 35% a. Describe the types and meanings of symbols and abbreviations used on blueprints Architectural Mechanical Duct work Plumbing and heating Refrigeration Electrical b. Describe and identify lines used on blueprints Visible Hidden edge Extension Dimension Centre Log and short break Leader Cutting plane Phantom 2. Describe sectional and projection views. 30% a. Describe the purpose of sectional views Large scale detail interpretations Cutting planes Section lining b. Describe Projections used in blueprint reading Types Uses 9

11 3. Sketch pictorial drawings. 35% a. Describe and sketch orthographics Top projection Front projection Side or end projection Use of metric and Imperial scale rulers b. Describe the use of pictorial drawings Oblique Isometric Perspective Orthographic c. Sketch various pictorial drawings from a given view Isometric drawings from an orthographic Orthographic drawing from an isometric projections d. Use elevation drawings Number and height of floors Roof height and shape Elevation of pipes, ducts and equipment in relation to floor level Difference of directional view (North, south, east and west) e. Describe scale relationship between elevation and floor plan Shape of building Arrangement of rooms Shape and size of rooms Location and size of elevators, stairs and hallways Locations, shape and size of mechanical equipment f. Read and quality survey various blueprints and specifications Architectural Mechanical Plumbing Identification of insulation termination points for various systems *** 10

12 Insulator (Heat and Frost) Unit: E2 Asbestos/Lead Abatement Awareness Level: Two Duration: 14 hours Theory: Practical: 14 hours 0 hours Overview: This unit is designed to provide the apprentice with general skills and knowledge of asbestos abatement considerations, personal protective equipment, removal and encapsulation procedures, and health effects of lead abatement and lead abatement procedures. Percent of Objectives and Content: Unit Mark (%) 1. Describe asbestos abatement. 20% a. Explain asbestos abatement considerations Asbestos products Hazard considerations Assessment of risk Regulations Specifications Inspection Sampling tools Analysis Personal protective equipment Air monitoring Control options Temporary control of asbestos fibers Equipment and materials Tools and equipment required Disposal of waste material b. Describe control options and their advantages and disadvantages Removal Encapsulation Enclosure Management and surveillance c. Describe regulations and standards regarding asbestos fibers Workplace Safety and Health Act and regulations Health and Welfare Canada Fiber exposure limits Maximum allowable concentrations of fibers Air sampling Asbestos material samples 11

13 2. Use personal protective equipment. 15% a. Demonstrate the use of personal protective equipment for asbestos removal Respiratory protection Disposable coveralls, boots and gloves Decontamination procedure b. Maintain personal protective equipment Cleaning Inspection Storage 3. Discuss asbestos removal procedures. 20% a. Describe considerations for asbestos removal Tools and equipment Collection, storage and disposal of asbestos Amended water b. Follow asbestos removal procedures Setting up enclosure High Efficiency Particulate Air (HEPA) vacuum Negative air machines Personal protective equipment Safe work procedures Work area entry and exit Removal of enclosure 4. Describe how to encapsulate or enclose asbestos materials. 15% a. Describe how to encapsulate asbestos materials Use of penetrating sealants Use of bridging sealants Effect of sealants on fire ratings Safe work procedures b. Describe how to use enclosures for the covering of pipe and block insulation containing asbestos Matics Canvas Metal Vinyl covering Safe work procedures 5. Describe health effects of lead abatement. 15% a. Describe lead and its health effect Locations Properties How lead enters and affects the body How lead affects children and pregnancy Lead levels in the body Signs and symptoms of lead poisoning b. Describe how to identify and evaluate lead paint hazards Paint chip analysis X-ray fluorescence analysis Dust wipe test Sodium sulfide test Soil sampling 12

14 c. Describe employer responsibilities Engineering controls Changing area and washing facilities Separate break area Exposure monitoring Protective clothing and equipment Medical surveillance Worker training d. Select and use personal protective equipment Respirator types Respirator care Other safety equipment 6. Describe how to use lead abatement procedures. 15% a. Use safe work practices Notification to authorities Following all regulations Containing the work area Keeping dust level low Using personal protective gear and clothing Food housekeeping practice and clean up b. Describe the types of lead abatement and their advantage and disadvantages Replacement Removal Encapsulation c. Describe proper cleanup and disposal procedures Packing waste Storing of waste Permits for disposal *** 13