UNIT REVISION

City & Guilds 2346-03 Unit 110: Apply Practices and Procedures for Maintenance — Complete Revision Guide

A structured revision walkthrough of every topic in City & Guilds 2346-03 Unit 110 (Apply Practices and Procedures for Maintenance). Use it as a personal study checklist — work through each topic, tick off the points you can confidently explain or calculate, and use the linked Elec-Mate tools to practice the calculation-led parts. Designed for experienced workers consolidating skills outside a formal apprenticeship.

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9 min readUpdated 2026-05-18Andrew Moore, Founder of Elec-Mate

Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.

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Key Takeaways

  • 1City & Guilds 2346-03 Unit 110 — Apply Practices and Procedures for Maintenance — is a core component of the Electrotechnical Experienced Worker Qualification.
  • 2This unit is typically delivered to experienced workers consolidating skills outside a formal apprenticeship and covers 2 main topic areas.
  • 3Across the 2 topics there are 22 specific points you should be able to explain, demonstrate or calculate before the end-of-unit assessment.
  • 4Common assessment formats include online multiple-choice exams, written short-answer papers, and practical workshop tasks observed by your tutor.
  • 5Use the structured topic list below as a personal checklist — work through each point and confirm you can explain it without referring to your notes.
  • 6The Elec-Mate apprentice tier includes mock exams, flashcards, and revision notes mapped to this unit. Use the tools to test yourself between college blocks and on-site days.
01 · Unit Revision

Topic 1: Prepare to carry out electrical maintenance

In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.

  • Produce a maintenance work plan following best practice procedures to include: a. analysing the requirements of task, (based on technical and engineering principles and know-how) b. planned shut downs/isolations c. health and safety precautions (eg. provision for release of stored and latent energy) d. permits to work e. organising tools, equipment and spare parts f. liaison with/co-ordination of work with other persons will be necessary g. time/cost effectiveness h. A method statement (to include the appropriate best practice techniques/procedures/methods to undertake the maintenance activity)..
  • Ensure permission for the proposed work has been given (eg. from the client).
  • Use appropriate methods to communicate the plan/or key aspects of the planned work to relevant people such as: other workers, colleagues and clients UAN: Level: GLH: Endorsement by a sector or regulatory body: Aim: Assessment type City & Guilds Level 3 Electrotechnical Experienced Worker Qualification (2346-03).
  • Perform maintenance duties effectively as part of a team (such as: with the employer, other workers etc.).
  • Assess and apply appropriate preparation procedures to include: a. Adopting appropriate PPE b. Obtaining authorisation to carry out the maintenance work (such as a permit to work) c. Notifying relevant personnel of the maintenance work (other trades, users of equipment etc.) d. Following risk assessments..
  • Select appropriate tools and equipment for the maintenance work: a. Hand tools/power tools: i. Access equipment ii. Calibrated test instruments together with leads to GS 38 (as appropriate). iii. Positioning/lifting/jacking equipment iv. Trolleys/hand operated jacks. b. Following a safe system of work (eg. working in accordance with a risk assessment and method statement) c. Secure the work areas (fences, barriers, screens and warning signs)..
  • Ensure relevant shutdown procedures are followed and safe isolation has been carried out (eg. electrical systems/pressurised systems (hydraulic/compressed air/water, gas)).
  • Assess and confirm secure storage facilities for tools, equipment, materials and components.
  • Confirm that all appropriate job information is available for use Assess five from: a. Maintenance schedules/specifications b. Maintenance programmes c. drawings/diagrams d. Regulatory documents (eg. current version of BS 7671) e. Method statements f. servicing records g. Manufacturer’s instructions h. Certificates of competency i. Permits to work j. Other relevant information..
  • Verify that proposed materials/equipment/components are in accordance with: a. Industry requirements (best practice) b. The type of installation, its use, and the environment in which it is installed..
02 · Unit Revision

Topic 2: Carry out electrical maintenance

In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.

  • Interpret the maintenance schedule/specification to accurately identify and locate electrical systems and equipment that is to be worked upon.
  • Complete maintenance records accurately and submit them to the relevant person/s.
  • Evaluate the effectiveness of the maintenance activity against current industry best practice and technical principles.
  • Make formal recommendations for the improvement of maintenance activities to the supervisor. City & Guilds Level 3 Electrotechnical Experienced Worker Qualification (2346-03).
  • Use appropriate tools, equipment and materials for maintenance work.
  • Apply best practice work procedures which are appropriate for the type of maintenance activity being undertaken (planned preventative, breakdown, monitored).
  • Apply best practice work procedures which are in accordance with: a. Manufacturer’s instructions b. Industry approved practices c. Maintenance schedules and specifications..
  • Complete documented maintenance procedures on electrical circuits/systems Assess five from the following: a. Distribution systems b. Low voltage circuits c. Extra low voltage circuits d. Lighting systems e. Heating and ventilating systems f. Air conditioning and refrigeration systems g. Drive systems h. Security systems i. Earthing systems j. Data communication/networking systems k. Other circuit/system..
  • Complete documented maintenance procedures on electrical equipment: Assess five from the following: a. Electrical plant, components and accessories b. Motors c. motor control equipment d. Switchgear/distribution panels e. Control systems/components f. Contactors g. Power transmission mechanisms h. Luminaires/lamps i. Other relevant equipment..
  • Monitor the effectiveness of the maintenance activity against current industry best practice and technical principles.
  • Evaluate and apply the appropriate inspections, tests/checks to verify the maintenance work has been carried out in accordance with requirements.
  • Complete maintenance work in a professional manner - assess one: a. Within the timescale agreed by the person ordering the work b. Advising the relevant person/s about any anticipated delays or about any further repairs that need to be carried out..

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03 · Unit Revision

Study This Unit with Elec-Mate

Elec-Mate’s apprentice tier turns this unit checklist into an active study plan. You get mock exam questions, flashcards, and revision notes mapped to this unit, plus working calculators for every calculation-led topic. Most apprentices use the app between college blocks and on the train to site — short bursts of revision compound across the year.

For apprentices

The Elec-Mate apprentice tier includes mock exams, flashcards, and revision notes for City & Guilds 2346-03 Unit 110 plus every other unit in your qualification. 7-day free trial — see your progress on the tutor dashboard.

A Five-Step Revision Plan for This Unit

A repeatable approach that works for City & Guilds 2346-03 Unit 110 and every other unit in your qualification.

1

Read through every topic point once

Start at Topic 1 and read every bullet point. Don’t try to memorise — just get familiar with the scope. Note any topic that feels unfamiliar so you can come back to it.

2

Map each topic to its calculator or guide

For calculation-led topics, open the relevant Elec-Mate calculator and try one worked example. For theory-led topics, find the matching section in BS 7671 or the IET On-Site Guide.

3

Work through Elec-Mate mock exam questions

The Elec-Mate apprentice tier includes mock questions mapped to this unit. Aim for 80%+ on a clean run before the real exam.

4

Get hands-on time on the bench

For practical units (inspection and testing, installation), ask your tutor for additional workshop access. The bench is where the points click.

5

Self-explain each topic to a peer

If you can explain a topic in your own words to another apprentice and they understand it, you know it. This is the single highest-leverage revision tactic.

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