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100+ Free SA Installation Rules Paper 2 Practice Questions

Pass your South Africa Installation Rules Paper 2 (SANS 10142) — Wireman's Licence exam on the first try — instant access, no signup required.

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Sample SA Installation Rules Paper 2 Practice Questions

Try these sample questions to test your SA Installation Rules Paper 2 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the minimum pass mark required for Installation Rules Paper 2?
A.25%
B.40%
C.50%
D.75%
Explanation: Each Installation Rules paper requires a minimum of 50% to pass. Candidates must pass both Paper 1 and Paper 2 to meet the theoretical wireman's licence requirement.
2A candidate scores 78% on Installation Rules Paper 2. What exemption applies?
A.Must rewrite Paper 2 within 12 months
B.Permanently exempt from rewriting Paper 2
C.Must rewrite both papers
D.Exempt from practical unit standards only
Explanation: DHET rules state that a candidate who obtains 75 or more of 100 marks in either paper is permanently exempted from rewriting that examination.
3Under SANS 10142-1, what is the minimum acceptable insulation resistance for a new low-voltage circuit before energisation?
A.0.5 MΩ
B.1.0 MΩ
C.5.0 MΩ
D.100 MΩ
Explanation: Clause 8.6.8.2 of SANS 10142-1 requires insulation resistance of at least 1.0 MΩ when measured between conductors or between live conductors and the earth continuity conductor.
4When performing an insulation resistance test per SANS 10142-1, what minimum test voltage should be applied?
A.250 V
B.At least twice the nominal voltage, minimum 500 V
C.Exactly 230 V
D.1000 V regardless of system voltage
Explanation: SANS 10142-1 clause 8.6.8.1 requires an a.c. or d.c. test voltage of at least twice the nominal voltage, with a minimum of 500 V.
5What document confirms that a low-voltage electrical installation complies with SANS 10142-1 before it may be regarded as safe for use?
A.Certificate of Acceptability
B.Certificate of Compliance (CoC)
C.EWSETA skills certificate
D.Trade test report
Explanation: A registered person issues a Certificate of Compliance (CoC) confirming the installation meets SANS 10142-1 and applicable regulations. This is the legal compliance document for electrical installations.
6Which Act requires electrical installations in South Africa to comply with SANS 10142-1?
A.National Building Regulations and Building Standards Act
B.Occupational Health and Safety Act 85 of 1993
C.Electricity Regulation Act 4 of 2006
D.Consumer Protection Act 68 of 2008
Explanation: The OHS Act 85 of 1993, administered by the Department of Employment and Labour, requires electrical installations to comply with SANS 10142-1 and that registered persons issue CoCs.
7Before energising a new installation, which test confirms conductor insulation integrity?
A.Earth loop impedance test
B.Insulation resistance test
C.Polarity test only
D.Voltage drop calculation
Explanation: Insulation resistance testing (megger test) per SANS 10142-1 section 8.6.8 verifies there are no short-circuits or low insulation faults before power is connected.
8What is the nominal single-phase supply voltage in South African low-voltage installations per SANS 10142-1?
A.110 V
B.220 V
C.230 V
D.240 V
Explanation: South African LV installations use a nominal 230 V single-phase (phase-to-neutral) supply, with 400 V three-phase line-to-line.
9What is the nominal three-phase line-to-line voltage in South African installations?
A.380 V
B.400 V
C.415 V
D.440 V
Explanation: SANS 10142-1 and South African practice use 400 V as the nominal three-phase line-to-line voltage (√3 × 230 V phase-to-neutral).
10Which registered person category may issue a CoC for a three-phase installation?
A.Electrical tester for single phase only
B.Installation electrician or master installation electrician
C.Any qualified artisan electrician
D.Plumber with electrical endorsement
Explanation: An installation electrician (wireman) or master installation electrician registered with the Department of Employment and Labour may issue CoCs for installations within their scope, including three-phase.

About the SA Installation Rules Paper 2 Exam

Installation Rules Paper 2 is the second of two national theoretical examinations required for the South African wireman's licence (installation electrician). Based on SANS 10142-1, it tests the practical application of verification and certification procedures — inspection, insulation resistance, earth continuity, loop impedance, prospective short-circuit current, voltage drop and touch voltage calculations, fault-finding and CoC issuance for commercial and industrial low-voltage installations under the Occupational Health and Safety Act and Electrical Installation Regulations.

Assessment

A 3-hour written national examination of 100 marks administered by DHET through TVET colleges. Paper 2 focuses on SANS 10142-1 verification, inspection, testing, fault-finding, calculations and certification applied to commercial and industrial low-voltage installations. Both Paper 1 and Paper 2 must be passed for the wireman's licence theoretical requirement.

Time Limit

3 hours

Passing Score

50% (50 of 100 marks). If you score 75% or higher on either paper, you are permanently exempt from rewriting that paper. The second paper must be passed within 12 months of passing the first, otherwise both must be rewritten.

Exam Fee

Fees are charged by the registering TVET college or assessment centre and are not fixed nationally. Contact your college for the current examination and registration fee. (Department of Higher Education and Training (DHET) administers the Installation Rules examinations; registration as an installation electrician is with the Department of Employment and Labour after meeting all requirements including EWSETA unit standards.)

SA Installation Rules Paper 2 Exam Content Outline

22%

Testing Procedures

Insulation resistance, earth continuity, loop impedance, bonding, ring circuits, PSCC and earth leakage testing per SANS 10142-1 section 8.6.

18%

Verification and Certification

Visual inspection, test sequencing, defect lists, CoC completion and legal duties before issuing a Certificate of Compliance.

16%

Calculations

Voltage drop, PSCC, touch voltage, loop impedance limits and conductor sizing for compliant protective device selection.

14%

Fault Finding

Diagnosing open circuits, shorts, earth faults and nuisance RCD tripping using systematic isolation and test instruments.

12%

Commercial Installations

Three-phase boards, sub-distribution, load balancing, labelling and verification of commercial LV systems.

10%

Industrial Installations

Motor protection, starting methods, unbalanced neutral current, IT systems and specialised industrial compliance.

8%

Earthing and Bonding

Electrodes, equipotential bonding, extraneous conductive parts and earth fault return paths.

How to Pass the SA Installation Rules Paper 2 Exam

What You Need to Know

  • Passing score: 50% (50 of 100 marks). If you score 75% or higher on either paper, you are permanently exempt from rewriting that paper. The second paper must be passed within 12 months of passing the first, otherwise both must be rewritten.
  • Assessment: A 3-hour written national examination of 100 marks administered by DHET through TVET colleges. Paper 2 focuses on SANS 10142-1 verification, inspection, testing, fault-finding, calculations and certification applied to commercial and industrial low-voltage installations. Both Paper 1 and Paper 2 must be passed for the wireman's licence theoretical requirement.
  • Time limit: 3 hours
  • Exam fee: Fees are charged by the registering TVET college or assessment centre and are not fixed nationally. Contact your college for the current examination and registration fee.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

SA Installation Rules Paper 2 Study Tips from Top Performers

1Master SANS 10142-1 section 8.6 testing sequence: bonding continuity, ECC resistance, ring circuits, loop impedance at the main switch, PSCC at points of control, insulation resistance and functional tests.
2Practise calculations for voltage drop, PSCC and maximum earth loop impedance using Remax = V ÷ (2 × I) where I is the rated current of the protective device.
3Work through commercial and industrial scenarios: three-phase board layouts, motor circuit protection, defect list compilation and completing a Certificate of Compliance test report.

Frequently Asked Questions

What is the difference between Installation Rules Paper 1 and Paper 2?

Paper 1 focuses on legislation, definitions, design principles and general SANS 10142-1 requirements including residential applications. Paper 2 focuses on verification, inspection, testing, calculations, fault-finding and certification procedures applied to commercial and industrial installations. Both papers are compulsory and require 50% to pass.

What pass mark do I need for Installation Rules Paper 2?

You need at least 50% (50 of 100 marks) to pass Paper 2. If you achieve 75% or higher on either Paper 1 or Paper 2, you receive a permanent exemption from rewriting that specific paper. The second paper must be passed within 12 months of passing the first.

What is the minimum insulation resistance required by SANS 10142-1?

Before energising a new or altered circuit, insulation resistance must be at least 1.0 MΩ when measured with a test voltage of at least twice the nominal system voltage (minimum 500 V), between conductors or between live conductors and the earth continuity conductor.

Who administers the Installation Rules examinations?

The Installation Rules national examinations are administered by the Department of Higher Education and Training (DHET) through TVET colleges and registered assessment centres, typically three times per year. Registration as an installation electrician with the Department of Employment and Labour requires passing both papers plus EWSETA unit standards.