Electrical Services

Haynes Ltd fully qualified electrical engineers have extensive experience of installation and maintenance of electrical services in the industrial, commercial and residential sectors.

Our services include:
Full Electrical installations including mains distribution-Sub Mains-HV/LV- AC/DC
General Lighting
High and low bay lighting
Emergency Lighting
Fire Alarm Systems
Dado trunking
Skirting trunking
Raised access floor and ceiling trunking installations
UPS Systems
Full Data Centre installations
Building management
In addition to new installation services above, we also offer a full range of testing services which are described in the sections below.

Inspection and Testing
Electricity kills and injures people. Around 1000 electrical accidents at work are reported to HSE each year and about 30 people die of their injuries. Haynes Ltd provides a full range of testing and inspection services for both commercial and domestic environments.

PAT Testing (Portable Appliance Testing)
Haynes Ltd offers a complete electrical testing and inspection service to British Standard BS7671. We are fully qualified inspectors and use the highest standard test equipment to ensure that appliances are electrically safe. Our PAT testing equipment is calibrated on a regular basis to ensure that we provide the most accurate test possible. All our testing is carried out in accordance with The Institute of Electrical Engineers (IEE) code of practice.

Appliances and leads are tested for a variety of faults, and given a pass or fail sticker as appropriate. A certificate of PAT testing and PAT test schedule is provided showing the results of all tests. These can if required also be reproduced on CD-ROM.

If required, we will at the time of testing, also carry out minor repairs e.g. change an incorrectly rated fuse or damaged plug so that equipment is safe and eligible for PAT certification. More significant faults or serious damage will,
however, be reported to our client.

Electrical Circuit Testing
Periodic inspection and testing of electrical circuits is necessary to provide, so far as is reasonably practicable, for:
  • The safety of persons and livestock against the effects of electric shock and burns
  • Protection against damage to property by fire and heat arising from an installation defect, and
  • Confirmation that the installation is not damaged or deteriorated so far as to impair safety, and
  • The identification of installation defects and non-compliance with the requirements of the Regulations which may give rise to danger.

Periodic inspection and testing is also necessary because all installations deteriorate. This can be due to a number of factors, such as damage, wear, tear, corrosion, excessive electrical loading’ ageing and environmental influences.

The legislation requires that electrical installations are maintained in a safe condition and therefore must be periodically tested Licensing authorities, public bodies, insurance companies, mortgage lenders and others may require periodic inspection and testing of electrical installations.

In addition, periodic inspection and testing should be considered:

To assess compliance with BS7671 and the Electricity at Work Regulations 1989
change of occupancy of the premises
change of use of the premises
After alterations or additions to the original installation
In the event of any significant change in the electrical loading of the installation
Where there is
reason to believe that damage may have been caused to the installation

Our qualified and accredited
inspection and testing team can perform all of the necessary tests to ensure a supply and installation conforms to all of the relevant safety legislation and standards. This includes:

Visual Inspection
  • Continuity of Protective Conductors and Equipotential Bonding conductors
  • Polarity testing
  • Earth Fault Loop Impedance
  • Insulation Resistance
  • Operation of device for isolation and switching
  • Operation of Residual Current Device (RCD’s)
  • Operations over-current circuit-breaker


All Haynes Ltd Services are installed to the latest relevant standards such as BS 6701, BS EN 50173- 1:2002, BS EN 50174-1:2000, BS EN 50310:2000 and BS EN 50346:2002 along with the recently ratified TIA-942 which defines the planning and building of data centres (particularly with regard to cabling systems and network design) as well as being in line with the 17th edition electrical regulations.