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INSTALLATION RULES PAPER 2 STUDY GUIDE Compiled By: Leonard Fikani Ndlovu Email: [email protected] Website: https://www.installationrulesstudymate.co.za
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INSTALLATION RULES PAPER 2
STUDY GUIDE
Compiled By: Leonard Fikani NdlovuEmail: [email protected]
Website: https://www.installationrulesstudymate.co.za
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INSTALLATION RULES PAPER 2STUDY GUIDE
Leonard Fikani NdlovuPO Box 4367
Durban4000
Kwazulu-Natal ProvinceSouth Africa
E-mail: [email protected]: https://www.installationrulesstudymate.co.za
© 2010 – 2020 All rights reserved. No part of this Study Guide may be reproduced or transmitted in any
form or by any means without written permission from the Author.
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INTRODUCTIONDuring the course of any class, you will be required to process a great deal of information and since your knowledge of thesubject will be tested, you will need an effective way to learn the concepts and remember them and study guides are a provenmethodology that will help you outline and remember the important pieces of information. The Installation Rules StudyPackage is provided to do just that and to ensure that your understanding of the material covered in the Regulation Standardsis solidified. It is designed to make your exam preparation less of a headache for you and to shorten your preparation time. Itconsists of the Study Guide, the Past Exam Papers with Memos and the Exam Simulator Software. The Study Package isdesigned to be easy-to-use instrument to help you pass the exams convincingly on the first try. The design of the InstallationRules Study Package is based on the principle that, for a product to be effective, it must be simple and easy to use.
ABOUT THE AUTHORThe Author of the Installation Rules Study Package is a registered Installation Electrician in terms of the Electrical InstallationRegulations. He passed the Installation Rules Exams with distinctions [Paper 1 with 92%, Paper 2 with 82%]. He has for the pastfew years thoroughly researched every topic that is covered in the Exams and his research revealed specific content areas andconcepts that are critical for one to know, understand and apply in order to be victorious in the Exams. The author has takenthat information and compiled the Installation Rules Study Package that is guaranteed to produce positive results. The Authoris devoted to consistently provide the best Installation Rules Study Package and Support that not only meet the student'sneeds but also that surpass their expectations.
OUR OBJECTIVEWe have done our best in making sure that the Installation Rules Course objectives are met by providing our students with anexcellent Study Package packed with detailed, step by step examples and many Exam–Style questions. The main objective ofour Study Package is to give our students the Knowledge, the Practice and the Confidence necessary to pass their Exams withflying colours on their first try.
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STUDY PACKAGE FEATURESThe Installation Rules Exams are not easy but with the right tools at your disposal and hard work you can make it. The StudyPackage consists of the Study Guide, Revision Exercises, the Exam Simulator Software and Past Exam Papers with Memos.These study tools ensures that your understanding of the material covered in the course is solidified and at the same timeensuring that all the objectives and aims of the Installation Rules course are satisfied. Past Exam papers together withmemorandum are provided to give you an idea of how to answer Exam questions. The Installation Rules Study Package offer aself-paced method of preparing for the exams in the shortest possible time. The Student will go through all the sections of theregulation book without guessing which sections of the standards they need to focus on. In short, the tools focuses on allimportant areas of the course with great emphasis on sections that will be in the actual exam sitting. We encourage ourstudents to concentrate on the material presented in the Study Guide.
THE STUDY GUIDEThe Study Package is completely updated to the latest electrical Regulation Book and Standards. The information provided inthe Study Guide is divided into three sections: Section 1 gives the Student carefully worked out examples ofcalculations, Section 2 is divided into Modules – in these modules the Student is guided through the theory part of the courseby answering questions similar to the ones they will face in the exam and Section 3 consists of the revision exercises to test theStudent's understanding of the material covered.
THE EXAM SIMULATORThe Exam Simulator does not generate Exam questions haphazardly – most of the questions generated will be in the actualexam. What the Exam Simulator does is that it systematically generates ten Exam questions in Internet Explorer similar to theones the student will face in the actual Exam session. The Exam Simulator helps to solidify the Student's understanding of thematerial covered in the regulation books while at the same time helps the Student to build the confidence necessary to facethe actual exam sitting. Generate as many exam sessions as you like and for each exam session generated set aside 3 hours toanswer the Exam questions.
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WELCOMEWe would like to welcome you to the Installation Rules Paper Two Study Guide and we thank you for investing in our study material.If you have never taken this Exam or have attempted it before, this Study Guide together with the accompanying Software will giveyou some idea of what to expect the actual Exam session to be like and to sharpen your skills on how to answer such Exam questions.
The Installation Rules Study Tools ensures that your understanding of the material covered in the Regulation Standards is solidifiedand also ensures that all the objectives and aims of the Installation Rules Course are satisfied - keep in mind that for the InstallationRules exams you are required to demonstrate sufficient knowledge, understanding and application of the regulation standards.
The information provided in this guide is divided into two sections: Section 1 gives you worked out examples of calculations andsome theory questions for Paper Two. Most of the examples are taken from Past Exam Papers. Section 2 is divided into Modules –make sure to answer ALL the questions in these Modules. For ease of use each question in the Modules have Page numbers next tothem indicating where to get the answer to that particular question in the Regulation Book. We have included answers to Module 5,and for answers to calculation questions please refer to Examples.
First, start and work through the Study Guide then next do the Assignments and Revision Exercises – the Revision Questions are in aseparate file. For more revision and practice run the Exam Simulator and give yourself THREE hours per session to answer generatedquestions – you may use this as the final preparation for the Exam. You may also find it helpful to follow the Study Time Table For Paper 2. This Study Method requires 14 weeks before the Exam; Monday – Friday take 1 to 2 hours per day and on Saturday &Sunday spend at least 3 hours per day.
Used thus as instructed “The Study Method” is surely GUARANTEED to give you Sufficient Knowledge,Understanding, Practice and the Confidence required to pass Paper 2 Exam with flying colours on your first try.
“The best preparation for tomorrow is doing your best today, one bit at a time.””He who is well prepared has half won the battle.”
The Installation Rules Study Mate Team
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TABLE OF CONTENTSPage
Study Time Table 16
Syllabus 17
Important Tables 18
Important Formulae 19Resistance And ResistivityVoltage Drop – What is it?Voltage Drop – How do I calculate it?Neutral CurrentTouch VoltageLoad MomentPower CalculationsAC Supply: PSCC CalculationsDC Supply: PSCC CalculationsGeneral Knowledge
Example 1 37Voltage Drop Calculation
Six MethodsExample 2 42
Voltage Drop CalculationSix MethodsSpecific ResistanceMonogram Table / Model
Example 3 53Voltage Drop Calculation
Four MethodsElaborate On The FindingsWhich Method Is Better
Example 4 58Voltage Drop Calculation
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Four MethodsElaborate On The FindingsWhich Method Is Better
Example 5 63Voltage Drop Calculation – Single Phase
The Actual Voltage DropThe Actual ResistanceThe Actual CurrentThe Actual Length
Example 6 69Voltage Drop Calculation – Single Phase
Total Volt DropTotal ResistanceThe Actual Length
Example 7 78Voltage Drop Calculation – Single Phase
Voltage Drop% Voltage DropMinimum ECC Size
Example 8 85Voltage Drop Calculation – Single Phase
Minimum Cable SizeVoltage Drop% Volt Drop (Worst Case)Main Protection
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Example 9 109Voltage Drop Calculation – Single Phase
Minimum Cable SizeTest Your Answer
Example 10 119 Voltage Drop Calculation – Single Phase
Minimum Cable SizeActual % Voltage DropTouch Voltage
Example 11 147Voltage Drop Calculation – Single Phase
% Voltage DropResistance Of The ECCTouch Voltage
Example 12 156Voltage Drop Calculation – Single Phase
Correct Cable Size% Voltage Drop
Example 13 173Voltage Drop Calculation – Single Phase
Minimum Cable SizeMinimum ECC Size
Example 14 185Voltage Drop Calculation – Single Phase
Minimum Cable Size Voltage Drop
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Example 15 200Voltage Drop Calculation – Single Phase
Minimum Cable sizeVoltage DropSpecific Resistance
Example 16 216Voltage Drop Calculation – Single Phase
Minimum Cable sizeVoltage DropSpecific Resistance
Example 17 233Voltage Drop Calculation – Three Phase
Maximum Voltage DropTest Answer (Use Table D.1 Only)Maximum Voltage DropMinimum Copper Conductor Size
Example 18 248Voltage Drop Calculation – Three Phase
Voltage DropResistivity (rho)Average Resistivity (rho)
Example 19 263Voltage Drop Calculation – Three Phase
Minimum Cable size% Phase To Neutral Volt DropMain Protection Tripping Rating
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Current Unbalanced FactorThe Actual Resistance Of The ECC
Example 20 279Voltage Drop Calculation – Three Phase
Correct Cable sizeLength Of Cable
Example 21 304Voltage Drop Calculation – Three Phase
Minimum Cable sizeVoltage Drop
Example 22 309PSCC Calculation: AC Supply
Calculate The PSCCCalculate The Touch VoltageThe Total Loop Impedance
Example 23 313PSCC Calculation: AC Supply
Calculate The PSCCCalculate The Touch VoltageThe Total Loop Impedance
Example 24 317PSCC Calculation: AC Supply
Calculate The PSCC
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Example 25 321PSCC Calculation: AC Supply
Three Phase PSCCPhase To Phase PSCCVoltage DropMinimum ECC SizeTouch Voltage
Example 26 330PSCC Calculation: AC Supply
Three Phase PSCCVoltage DropMinimum ECC SizeTouch Voltage
Example 27 337PSCC Calculation: AC Supply
Three Phase PSCCTouch VoltageTotal Loop ImpedanceVoltage Drop
Example 28 345PSCC Calculation: DC Supply
The PSCC Of A DC SupplyExample 29 347
PSCC Calculation: DC SupplyThe PSCC Of A DC Supply
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Example 30 349PSCC Calculation: DC Supply
The Area Of CableAlternative MethodVoltage Drop
Example 31 354PSCC Calculation: DC Supply
The Area Of CableAlternative MethodVoltage Drop
Example 32 359PSCC Calculation: DC Supply
The Length Of CableAlternative MethodVoltage Drop
Example 33 364PSCC Calculation: DC Supply
The Length Of CableAlternative MethodVoltage Drop
Example 34 369PSCC Calculation: DC Supply
Current FlowExample 35 372
Conductors In Conduit – Annexure FExample 36 374
Conductors In Conduit – Annexure FExample 37 376
Conductors In Conduit – Annexure F
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Example 38 378Conductors In Conduit – Annexure F
Example 39 380Conductors In Conduit – Annexure F
Example 40 382Conductors In Conduit – Annexure F
Example 41 384Conductors In Conduit – Annexure F
Example 42 386Conductors In Conduit – Annexure F
Example 43 390General Calculations / Basic Principles
ExercisesExample 44 393
General Calculations / Basic PrinciplesFactors affecting resistance of a conductorMaximum value of the protection deviceMaximum value of the protection deviceMaximum value of the protection deviceMaximum length of the ECC Maximum length of the ECC Minimum size of the ECCMinimum size of the ECC Minimum size of the ECCLength of cable for a 3kW water heater
Other four test that can also be doneTouch Voltage for a 3kW water heater
Other four test that can also be done
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Touch Voltage for a 2kW water heaterOther four test that can also be done
Example 45 412Accuracy And Resolution
Example 46 415 Earth Loop Impedance TestProspective Short-Circuit Test
Example 47 422Earth Electrode Test
Example 48 426Insulation Resistance Test
Module 1 428SANS 10142: Section 6
Module 2 435SANS 10142: Section 6
Module 3 443SANS 10142: Section 6
Module 4 460SANS 10142: Section 6
Module 5 466SANS 10142: Section 6
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Module 6 472SANS 10142: Section 8
Module 7 482SANS 1973
Module 8 487Voltage Drop CalculationsGeneral Calculations / Basic Principles
Module 9 516PSCC Calculations: AC & DC Supply
Module 10 530Annexure FAnnexure KAnnexure LAnnexure N
Important Annexures 537
Paper 2 Checklist 538
Assignment 1 540
Assignment 2 545
Assignment 3 550
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IMPORTANT TABLES FOR PAPER 2The following Tables will be required in solving many of paper 2 calculations:
Table 6.3 (b)
Table 6.4 (b)
Table 6.8
Table 6.22
Table 6.23
Table 6.24
Table 6.28
Table D.1
Table D.2
Table D.3
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METHOD 6In the case of a load with impedance, the voltage drop can be calculated using the following:
Vd is the voltage drop in VoltFv is the multiplication factor determined from Table E.3I is the current in AmperesR is the resistance in Ohms per kilometer from Table D.1X is the reactance in Ohms per kilometer from Table D.1L is the length in Meterscos θ is the Power Factor of the connected load
METHOD 7If the load is either inductive or capacitive we apply Ohm’s Law:
I is the current in AmperesR = XL for an inductive load = 2πfLR = XC for a capacitive load = 1/2πfCf is the frequency in HertzL is the inductance in HenrysC is the capacitance in Farads
Vd = Fv x I x (R cos Φ + X sin Φ) x L1000
Vd = I x R
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