
Walker Electrical Developments installs Power Factor Correction equipment for industrial and commercial businesses across Preston and the PR2 area. Poor power factor is a common problem at sites with significant motor, drive, or reactive load, and it costs money directly through reactive energy charges from electricity suppliers and indirectly through oversized distribution equipment. Our NICEIC registered engineers assess your site's power factor, calculate the correction required, and install the right equipment to bring your power factor into an acceptable range.
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Fixed wire testing covers the wiring from the main distribution board through to all final circuits, including sockets, lighting, motor circuits, and any dedicated supply circuits in the building. Tests include earth fault loop impedance measurement on every circuit, insulation resistance testing, verification of RCD operation times and tripping currents, and confirmation of correct protective device ratings. All test results are recorded against the relevant circuit for inclusion in the test report or EICR.
Fixed wire testing requires circuits to be isolated and tested one at a time. For commercial and industrial premises in Preston, this means careful planning to avoid disrupting critical equipment or operations. We work with your team to establish the testing sequence and agree planned outage windows for each section of the installation. In many cases, testing can be phased so that only a small part of the installation is affected at any one time, keeping your premises operational throughout.
The value of fixed wire testing is only as good as the accuracy of the results. Our engineers use calibrated test equipment and follow the correct testing methodology throughout. We do not cut corners on test sequences and we do not estimate or extrapolate results. Every circuit is tested individually and the actual measured values are recorded. This level of accuracy matters, particularly when the results form part of a formal EICR report that insurers and regulators may rely on.
Walker Electrical Developments was founded 25 years ago to serve the industrial and commercial electrical needs of businesses across Preston and Lancashire. From day one, we made a deliberate decision to focus exclusively on industrial and commercial work. That focus has shaped everything we do. Our electricians and engineers are experienced in environments that general contractors rarely encounter, including high-voltage distribution systems, motor drive installations, PLC control panels, and large-scale factory rewires. We are NICEIC registered and committed to delivering work that is safe, documented, and fully compliant.
NICEIC registered on every project
25 years of industrial and commercial electrical experience
Specialists in Preston, Blackburn, Lancaster and the wider PR2 area
Full public liability insurance on all works
Free, no-obligation quotes for all commercial and industrial projects
We recently carried out a fixed wire testing programme for a multi-storey commercial building in the Fulwood area of Preston as part of a portfolio compliance exercise. The building had not been tested for seven years and a number of circuits were found to have high earth fault loop impedance values that required investigation. We identified and rectified the underlying issues and reissued the circuits with test results within acceptable limits.
STILL NOT SURE?
Fixed wire testing is the testing of the permanent electrical wiring and equipment in a building, including all circuits from the distribution board to the final outlets. It confirms that the wiring is in safe condition, properly earthed, and protected by correctly rated devices. Commercial premises in Preston need regular fixed wire testing to meet legal, insurance, and safety obligations.
For most commercial buildings in Preston, fixed wire testing as part of an EICR is recommended every five years. Some types of premises, such as those with higher electrical loads or harsher environments, may require more frequent testing. Walker Electrical Developments can advise on the appropriate interval for your specific premises.
Yes. Walker Electrical Developments can carry out fixed wire testing outside normal business hours to minimise disruption. We work Monday to Saturday from 7am to 7pm and on Sundays from 7am to 1pm. For commercial clients in Preston who need testing done outside business hours, we can discuss arrangements as part of the project planning.
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Address: 33 Newton Road, Ashton-on-Ribble, Preston, UK