14.3 EAL Practical Assessment Structure & Inspection Rig Scenarios
Key Takeaways
Under EAL Qualification Specification Issue 5 (Section 6), each qualification requires two centre-marked practical assessments: Initial Verification requires Practical 1 (Initial Inspection) and Practical 2 (Initial Verification Assessment); Periodic Inspection and the Combined Award require Practical 1 (Periodic Inspection) and Practical 2 (Periodic Inspection and Testing Assessment).
Practical assessment grading is strictly Pass or Refer; under EAL re-assessment policy, a candidate who is referred is required to retake ONLY the referred task element following centre feedback and appropriate remedial tuition.
Distinguish EAL’s published assessment requirements from revision exercises and centre arrangements. The four activities in this section are original study examples; obtain actual assessment resources, timing and instructions through the authorized centre process.
Safe isolation and live-test precautions are essential practical competences. Follow the centre’s authorized assessment instructions; the public specification does not publish an automatic-referral rule for every listed omission or a universal ten-step marking rubric.
A necessary live separate Ze measurement requires full EAWR14 justification, all-source isolation of outgoing circuits, diverted-current precautions and suitable equipment/PPE. Restore and verify required earthing before outgoing energisation; do not treat main-switch-OFF alone as sufficient.
14.3 EAL Practical Assessment Structure & Inspection Rig Scenarios
Core Examination Standard: The EAL Level 3 Inspection & Testing qualifications evaluate candidates through rigorous, centre-marked practical assessments governed by Section 6 of EAL’s published IT3 qualification specification. The practical assessments are set by EAL and marked by the approved centre, with internal standardisation and external quality assurance. Their detailed tasks and resources belong to the authorized assessment packs.
Official EAL Practical Assessment Structure (Issue 5, Section 6)
In official EAL documentation, practical assessment across all three qualifications is structured around two centre-marked practical assessments:
OFFICIAL EAL PRACTICAL ASSESSMENT SUITE (ISSUE 5, SECTION 6)
┌────────────────────────────────────────────────────────────────────────┐
│ INITIAL VERIFICATION QUALIFICATION (QN: 600/4337/4 - UNIT QIT3/001) │
│ • Practical 1: Initial Inspection Assessment │
│ • Practical 2: Initial Verification Assessment │
├────────────────────────────────────────────────────────────────────────┤
│ PERIODIC INSPECTION QUALIFICATION (QN: 600/4338/6 - UNIT QCR/001) │
│ • Practical 1: Periodic Inspection Assessment │
│ • Practical 2: Periodic Inspection and Testing Assessment │
├────────────────────────────────────────────────────────────────────────┤
│ COMBINED QUALIFICATION (QN: 603/2625/6 - UNIT ITC3/001) │
│ • Practical 1: Periodic Inspection Assessment │
│ • Practical 2: Periodic Inspection and Testing Assessment │
└────────────────────────────────────────────────────────────────────────┘
Official Grading: Pass or Refer Only
Under EAL regulations, practical assessments are graded strictly as Pass or Refer. Meet the required criteria in the authorized assessment instructions; the public qualification specification does not publish a universal numerical or automatic-referral rubric.
Official EAL Re-Assessment Policy
EAL’s published IT3 qualification specification (Section 6) defines a clear, candidate-centered re-assessment policy:
- Retake Referred Task Element Only: If a candidate fails to achieve a Pass in any practical assessment element, they are required to retake ONLY the referred task element (not the entire assessment suite, and not previously passed units or elements).
- Mandatory Feedback & Remedial Tuition: The re-assessment may take place only after the candidate receives structured feedback detailing their specific shortfall and completes appropriate remedial tuition from the assessment centre.
Specification Mandates vs. Training Centre Implementation Practices
Candidates must clearly distinguish between the official EAL qualification specification and the operational delivery practices established by accredited training centres:
Note
Training activities and formal assessments: The four activities below organise revision; they are original teaching examples, not disclosed EAL assessment tasks or a claim that every centre follows four timed stages. EAL requires formal assessment rigs to be kept secure and prohibits their use for prior training. Practise on separate training resources. Obtain assessment arrangements and permitted materials from the centre without requesting confidential assessor content.
Training Activity 1: Safe Isolation Protocol (Single & Three-Phase)
Demonstrate safe isolation with appropriate planning, equipment and checks. EAWR12/13 address isolation and preventing re-energisation; EAWR14 applies to necessary work on/near live conductors. Follow the authorized assessment instructions and demonstrate the required safe actions.
ILLUSTRATIVE SAFE-ISOLATION CHECKLIST
┌────────────────────────────────────────────────────────────────────────┐
│ 1. PLAN: Consult dutyholder; identify work boundary and every source. │
│ 2. IDENTIFY: Locate and verify correct isolating switch disconnector. │
│ 3. INSPECT TESTER: Inspect GS38 two-pole detector & dedicated proving unit.│
│ 4. FIRST PROVE: Prove voltage detector against suitable proving source immediately.│
│ 5. ISOLATE: Secure every relevant source to the work boundary. │
│ 6. LOCK-OFF & TAG: Fit lock-off bracket, unique padlock, and safety tag.│
│ Retain key directly in your pocket (never leave on bench/in lock). │
├────────────────────────────────────────────────────────────────────────┤
│ 7. PROVE DEAD ACROSS ALL CONDUCTOR COMBINATIONS: │
│ • Single-Phase (3 tests): L-N, L-E, N-E │
│ • Three-Phase (10 tests): L1-L2, L2-L3, L3-L1, │
│ L1-N, L2-N, L3-N, │
│ L1-E, L2-E, L3-E, N-E │
├────────────────────────────────────────────────────────────────────────┤
│ 8. SECOND PROVE: Re-prove detector on the suitable source immediately after. │
│ 9. VERIFY PROXIMITY: Ensure adjacent equipment remains safe / shielded. │
│ 10. WORK: Only within the proved-dead boundary and agreed safe system. │
└────────────────────────────────────────────────────────────────────────┘
Caution
Prove the detector before and after checking dead. Use an appropriate two-pole voltage indicator, inspected with its leads and checked on a proving unit or suitable known source. A general multimeter is not the recommended proving-dead instrument: wrong range/connections or other failures can mislead. Test all relevant conductor combinations at the work point, including neutral-to-earth, and protect against adjacent live parts. Retain control of the isolation key and consider stored energy and alternative supplies. An accessible supply-side terminal may remain live even though downstream circuits are isolated.
Training Activity 2: Visual Inspection Scenarios
Use a separate training installation or original photographs to practise recognizing defects. The following are teaching examples; the official pack determines assessment resources and methods.
Candidates must inspect the installation systematically against BS 7671 Section 642 / Section 652 and record each defect clearly on an observation schedule.
ILLUSTRATIVE VISUAL INSPECTION DEFECTS
┌────────────────────────────────────────────────────────────────────────┐
│ 1. INGRESS PROTECTION (IP) DEFECTS │
│ • Open top knockout permits access to live parts; required IP not met│
│ • Missing blanking piece exposing live busbar / terminal (fails IPXXB) │
├────────────────────────────────────────────────────────────────────────┤
│ 2. ENCLOSURE AND ASSEMBLY DEFECTS │
│ • Missing/unsuitable component compromising the verified assembly │
│ • Unsealed entry fails required IP or maker’s assembly arrangement│
├────────────────────────────────────────────────────────────────────────┤
│ 3. CABLE ROUTING & MECHANICAL PROTECTION DEFECTS │
│ • Unprotected sharp stud edge can damage a cable at the penetration │
│ • Shallow concealed cable lacks prescribed-zone/alternative protection │
├────────────────────────────────────────────────────────────────────────┤
│ 4. ACCESSORY POLARITY & SWITCHING ERRORS │
│ • Wrong polarity at ES centre contact where643.6 requires line; note E14/E27 exception │
│ • Single-pole light switch connected in the neutral conductor │
├────────────────────────────────────────────────────────────────────────┤
│ 5. EARTHING & BONDING NON-COMPLIANCES │
│ • Main protective bonding conductor undersized (e.g. 4 mm² on PME) │
│ • Missing 'Safety Electrical Connection - Do Not Remove' warning label │
└────────────────────────────────────────────────────────────────────────┘
Training Activity 3: Testing and Verification
Practise on a separate training resource with identified circuits, equipment and sources. The actual formal-assessment installation and instructions are specified in EAL’s authorized pack, not a universal lighting/ring/cooker rig defined by this guide.
Planning the Verification
For initial verification, perform the relevant 643.2–643.6 dead tests in their required order. Prepare and check suitable instruments/leads; verify protective-conductor and ring continuity, insulation resistance, applicable SELV/PELV/separation and floor/wall measures, then polarity. Use the correct voltage and precautions for the circuit/equipment rather than 500 V for everything.
PLAN / INSPECT / SAFE ISOLATION
↓
RELEVANT DEAD TESTS IN REQUIRED ORDER
↓
BEFORE ENERGISING THE INSTALLATION
Confirm origin supply polarity and relevant protective measures.
Remove test links; restore and verify connections; reinstate barriers.
↓
CONTROLLED ENERGISATION AND APPLICABLE LIVE/FUNCTIONAL CHECKS
Determine source/loop/fault-current information appropriately;
verify the actual protective measures, RCD and button functions,
maintained phase sequence and applicable equipment operation.
Additional verification depends on the protective measure and installation. The minimum RCD instrument test is AC at IΔn, with the correct general/S-type limits;5× is optional diagnostics. Phase sequence can be verified by dead identification; live rotation checks are used where needed.
Warning
Separate live Ze testing: Where necessary, exclude parallel returns under a safe controlled procedure. Justify live work under all EAWR14 conditions; isolate and secure every source to outgoing circuits, assess diverted current before handling earthing and use suitable GS38/instrument protection and risk-assessed PPE. Restore and verify required earthing before outgoing energisation. Do not leave protective connections disconnected for downstream live testing.
Training Activity 4: Recording and Self-Checking
In the final documentation phase, candidates compile all verified raw data into standard BS 7671 documentation (Electrical Installation Certificate or Electrical Installation Condition Report with accompanying schedules).
REVISION SELF-CHECK — NOT AN EAL MARKING RUBRIC
Safety: actual isolation boundary, live-work justification and restored protection
Measurements: valid method, actual instrument uncertainty and expected circuit data
Reasoning: explain ring patterns, IR results and the applicable protection limit
Records: current form, relevant numerical results, defined outcomes and attachments
Do not assume a universal±5% assessment tolerance or automatic referral from one listed clerical error. Follow the actual assessment instructions; use the current source and manufacturer data when assessing the result. The 0.8Zs screen has a defined purpose and does not replace every detailed thermal/protection assessment.
Candidate Feedback and Referral Retake
If a candidate is referred on any single task element (for example, miscalculating ring circuit spur values or leaving an inspection box blank):
- The assessor provides clear, constructive feedback detailing the exact failure criterion.
- The candidate is scheduled for remedial tuition focused on that specific weakness.
- The candidate retakes only the referred task element, preserving all other passed elements of Practical 1 and Practical 2.
Under the official EAL Qualification Specification Issue 5 (Section 6) for Level 3 Inspection and Testing qualifications, which of the following correctly describes the practical assessment structure and re-assessment policy?
Each qualification requires two centre-marked practical assessments (Practical 1: Inspection and Practical 2: Testing/Verification) graded Pass or Refer; a candidate who is referred is required to retake only the referred task element following feedback and tuition
Each qualification requires four independent nationally set practical exams graded Pass, Merit, or Distinction; a referral on any single task requires the candidate to retake all four practical tasks and the online written exam
Assessment centres have total discretion to determine their own grading system (Percentage score 0-100%); referred candidates must re-sit the entire qualification course from the beginning
Each qualification requires a single 8-hour continuous practical exam; candidates who make a paperwork error must retake the entire practical exam within 24 hours without centre feedback
On a separate training installation representing a domestic consumer unit, which observation identifies a clear basic-protection defect?
The consumer unit enclosure is manufactured from steel and fitted with a non-combustible visor
An unused way has a missing blank, leaving live parts accessible to the standard finger probe
Meter tails enter the top of the enclosure through an IP4X-rated steel compression gland plate
Outgoing circuit cables are secured using fire-resistant metallic cable supports within 300 mm of the enclosure
During Practical 2, when measuring external earth fault loop impedance (Ze) at the incoming supply with the installation earthing conductor disconnected from the MET, what safety and statutory requirement must be strictly observed?
The measurement may be taken using a standard digital multimeter with 10 A unfused leads
Because testing on exposed incoming live terminals with the main earth disconnected constitutes live working under EAWR Regulation 14, justified live-testing precautions—including GS38-compliant shrouded probes, PPE, and isolation of all outgoing circuits—must be strictly applied
The earthing conductor must remain connected to the MET so that parallel earth paths through water and gas pipes reduce the test voltage
The main switch must be turned on with all outgoing circuit protective devices energized to simulate full load operating conditions
Sections you finish are checked off in the contents.