Electrical Drawings and Wiring Systems - vetres

Electrical Drawings andWiring Systems(LSEGG380A)LEARNING RESOURCEMEC&TSAMPLEFirst Edition

Section 1 – Standards, regulations & testing forsupplySection PurposeIn this section you will learn about legislative requirements for electrical safety and associatedstandards.Section Topics••••••Technical drawing standards, conventions and specificationsAbbreviations and symbolsTypes of drawing representationsOrthogonal projectionThird angle – detail and assembly drawingsPictorial viewsLearning ObjectivesAt the end of this section you should be able to:a)b)c)d)e)f)g)State the scope of work covered by licensing in the Electrotechnology industryState the legislative requirements for ensuring electrical or electronic equipment is safeDescribe the purpose of technical standards and their developmentDescribe the role of standards Australia/New Zealand, International Organisation forStandardisation (ISO) and the International Electrotechnical Commission (IEC)Explain the arrangement and use of technical standards in relation to electrical andelectronic workDescribe a typical electrical installation including consumers mains, main switchboards,sub-mains, distribution boards and final sub-circuitsSAMPLEUse basic testing equipment to test electrical supplies.References for this sectionYou will find the technical information to undertake this section in the following references.Hampson, Jeffery (2007), Electrotechnology Practice, Pearson Education Australia, Sections 3& 4Australia/New Zealand Standard, Wiring Rules AS/NZS 3000, Standards Australia2007.LSEGG380A/1 Electrical Drawings and Wiring SystemsFirst Edition - July 2008© MEC&T Curriculum Centre, TAFE NSW5

Learner ExercisesLearner exercise 1.1 Scope of Work Covered by LicensingLocate from Section 3 of Electrotechnology Practice the topic titled ‘Licensing requirements’(page 66). Read this section of text and then answer the following questions.1.Does a national system of licensing for the electrical industry exist in Australia?_______________________________________________________________________2.3.4.What classes of electrical licence are available in NSW and what is the scope of work foreach class of licence?_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________What system of licensing is in place for people who undertake telecommunications cabling?______________________________________________________________________________________________________________________________________________What system of licensing is in place for people who check portable electrical appliances?_______________________________________________________________________SAMPLE_______________________________________________________________________6 LSEGG380A/1 Electrical Drawings and Wiring SystemsFirst Edition - July 2008© MEC&T Curriculum Centre, TAFE NSW

Learner exercise 1.2 Legislative Requirements for EquipmentLocate from Section 3 of Electrotechnology Practice the topic titled ‘Electrical safetylegislation’ (page 68). Read this section of text and then answer the following questions.1.2.3.4.What is the purpose of the Electrical Safety Act?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________What do Electrical safety regulations identify?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________What information would a Ministerial notice describe?_____________________________________________________________________________________________________________________________________________________________________________________________________________________What information do codes of practice provide?______________________________________________________________________________________________________________________________________________SAMPLE_____________________________________________________________________________________________________________________________________________________________________________________________________________________LSEGG380A/1 Electrical Drawings and Wiring SystemsFirst Edition - July 2008© MEC&T Curriculum Centre, TAFE NSW7

Learner exercise 1.3 Technical StandardsLocate from Section 3 of Electrotechnology Practice the topic titled ‘Technical standards’ (page66). Read this section of text and then answer the following questions.1.2.3.4.5.What is a technical standard?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Name the international standardising bodies that Standards Australia represents Australia’sinterests?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Which guide provides an understanding of the arrangement of standards?_______________________________________________________________________What is the purpose of the Building Code of Australia?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________SAMPLEWhy would a systems electrician need a good working knowledge of the Building Code ofAustralia?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________8 LSEGG380A/1 Electrical Drawings and Wiring SystemsFirst Edition - July 2008© MEC&T Curriculum Centre, TAFE NSW