Skip to main content
Facilitate Magazine: Informing Workplace and Facilities Management Professionals - return to the homepage Facilitate magazine logo
  • Search
  • Visit Facilitate Magazine on Facebook
  • Visit Facilitate Magazine on LinkedIn
  • Visit @Facilitate_Mag on Twitter
Visit the website of the Institute of Workplace and Facilities Management Logo of the Institute of Workplace and Facilities Management

Main navigation

  • Home
  • News
    • Comment
    • People
    • Reports
    • Research
  • Features
    • Analysis
    • Features
    • Round Tables
    • Webinars
  • Outsourcing
    • Contract Finder
    • Contracts
    • FM Business Models
    • Interviews
    • Mergers & Acquisitions
    • Opinion
    • Procurement
    • Trends
  • Know-How
    • Explainers
    • Legal Updates
    • White Papers
  • Jobs
  • Topics
    • Workplace Services
      • Hospitality
      • Catering
      • Cleaning
      • Front of House
      • Grounds Maintenance
      • Helpdesk
      • Mailroom
      • Manned Guarding / Security
      • Pest Control
      • Washroom Services
      • Disaster Recovery
      • Specialist Services
    • Professional Performance
      • Behavioural Change
      • Continual Professional Development
      • Education
      • Management
      • Recruitment
      • Training
    • Workplace Performance
      • Benchmarking
      • Health & Wellbeing
      • Operational Readiness
      • Procurement
      • Security
      • Workplace User Experience
      • Workplace Culture
    • Compliance
      • Health & Safety
      • Risk & Business Continuity
      • Standards
      • Statutory Compliance
    • Building Services
      • Architecture & Construction
      • Asset Management
      • Building Controls
      • Building Fabric
      • Drinking Water
      • Fire Protection
      • HVAC
      • Landscaping
      • Mechanical & Electrical
      • Building Security
      • Water, Drainage & Plumbing
    • Technology
      • Building Information Modelling
      • CAFM
      • Data & Networks
      • Document Management
      • Information Management
      • Internet of Things (IoT)
      • Software & Systems
    • Energy management
      • Energy Management Systems
      • Electricity
      • Gas
      • Solar
      • Wind
    • Sustainability
      • Environmental Quality
      • Social Value
      • Waste Management
      • Recycling
    • Workspace Design
      • Agile Working
      • Fit-Out & Refurbishment
      • Inclusive Access
      • Lighting
      • Office Interiors
      • Signage
      • Space Planning
      • Storage
      • Vehicle Management / Parking
      • Washroom
    • Sectors
      • Corporate Office
      • Education
      • Healthcare
      • Manufacturing
      • International
      • Retail
      • Sports & Leisure
      • Regions
  • Buyers' Guide
Quick links:
  • Home
  • Sections
  • Topics
Know How
Sections
Mechanical & Electrical

Common mistakes to avoid during periodic inspection and testing

Open-access content Thursday 22nd October 2015 — updated 4.00pm, Tuesday 26th May 2020

Periodic inspection and testing forms part of the routine maintenance programme for any electrical services on a site. Intersafe's Adrian Pendle warns of common mistakes.


8 October 2015 | By Adrian Pendle


Periodic inspection and testing involves testing the electrical services and systems that conduct electricity around a building. 


It covers all the fixed wiring in a building and includes items such as main panels, distribution boards, lighting, socket outlets, air conditioning and other hard-wired plant. It also involves performing a sequence of rigorous visual inspections and electrical tests on all systems in a building. 


The frequency of such inspection will vary depending on the type of installation. For instance, for educational establishments the maximum period between inspections and testing is five years, whereas for leisure complexes it is three years. You may have heard Periodic inspection and testing also referred to as:


  • Fixed wire testing
  • Electrical inspection condition report (EICR)
  • Fixed installation testing
  • Hard wire testing
  • Test and inspection
  • Fixed testing
  • Electrical testing 

 


Electricity at Work Regulations 1989

Employers are responsible for ensuring the health and safety of both their employees and members of the public on site and to ensure that they are not at risk from their work activities. Regulation 3 of the Electricity at Work Regulations 1989 recognises a responsibility that employers and many employees have for electrical systems: 


"It shall be the duty of every employer and self-employed person to comply with the provisions of the Regulations in as far as they relate to matters which are within his control."


It shall be the duty of every employee while at work:

(a) to co-operate with his employer so far as is necessary to enable and duty placed on that employer by the provision of the Regulations to be complied with: and

(b) to comply with the provision of these regulations in so far as they relate to matters which are within his control.


When inspection and testing is being carried out there is a requirement for parts of the installation to be isolated for periods of time. It is often advisable to perform testing out of hours so that disruption to the client and staff on site can be kept to a minimum. This type of electrical testing is a legal requirement and so getting it right is crucial. But mistakes can be made. Here are the six most common avoidable ones:


Cable size

Making sure that cable sizes are correct when carrying out

periodic testing and inspection is crucial. An inspector could assess a cable size incorrectly, which in turn could make the protective device unsuitable. An unsuitable protective device could enable a cable to carry more load than it is capable of. This causes the cable to melt - a common cause of electrical fires.


Insulation resistance 

It is vital that any current-using equipment is disconnected when carrying out an insulation resistance test. If it isn't it could lead to electronic equipment being damaged or destroyed. To minimise the risk, carry out the test at 250 volts first to get an indication if anything is still on the circuit, then complete the full 500V test. It is difficult to isolate all electronic equipment during periodic inspection and testing because of the amount of equipment still in the circuit - lights, heaters and neons. For this reason we mainly focus on the neutral earth IR test which finds any faults most over current devices don't detect except for residual current devices (RCDs). 


Relying on previous board schedules

When you look at a circuit board for the first time you assume that the labelling is correct. If a switch is labelled lights you assume that it means lights. But the board schedule might not be right; it may have been incorrectly labelled. Using circuit charts when carrying out periodic inspection and testing is useful as it ensures that your board schedule is correct and up to date. Out-of-date and inaccurate board schedules are not only dangerous to electrical contractors because of the danger in assuming a circuit has been isolated for working on, but also for end users trying to re-energise a trip circuit. 


Alterations

A circuit may have had additions since installation, for instance, extra sockets that have been installed incorrectly. This could mean that alterations to the original circuit might not be as standard or as first installed. When carrying out periodic testing and inspection the first things to look for are alterations, as these could cause faults. 


The mains switch

Inspectors can find that the mains switch in a building has not been turned off or operated for a long time, sometimes nearly 10 years! This means that when they come to operate the switch, there may be problems switching it back on again. Mains switches don't just deliver power; their job is to interrupt power as well. The mains switch should be serviced regularly as this can lead to unforeseen problems when it comes to testing. 


Tenby clamps

Inspectors can sometimes find that Tenby clamps have been used on SWA cables. This should absolutely not be the case as the clamp can crush the cable. Tenby clamps should only be used on water and gas pipes. 


Adrian Pendle is director at Intersafe

Also filed in
Topics
Know How
Content
Mechanical & Electrical

You might also like...

Share
  • Twitter
  • Facebook
  • Linked in
  • Mail
  • Print

Today's top reads

 

Latest Jobs

Head of Facilities

Norwich
Market competitive salary with excellent benefits package
Reference
59397

Deputy Director of Estate Services

Newcastle-under-Lyme
£75,000 per annum
Reference
59396

Health and Safety Manager

London (Central)
£50,000
Reference
59394
See all jobs »

 

 

Sign up to our newsletter

News, jobs and updates

Sign up

Subscribe to print

Sign up to receive our bi-monthly magazine

Subscribe
Facilitate magazine cover, June 2020
​
FOLLOW US
@Facilitate_Mag
Facilitate Magazine
Facilitate Magazine
CONTACT US
Contact us
Tel: 020 7880 6200
​

IWFM

About IWFM
Become a member
Qualifications
Events

Information

Privacy Policy
Terms & Conditions
Cookie Policy
Think Green

Get in touch

Contact us
Advertise with us
Subscribe to Facilitate Magazine
Write for Facilitate Magazine

General

IWFM Jobs
Help

© 2023 • www.facilitatemagazine.com and Facilitate Magazine are published by Redactive Media Group. All rights reserved. Reproduction of any part is not allowed without written permission.

Redactive Media Group Ltd, 71-75 Shelton Street, London WC2H 9JQ