Pre-Commissioning LV HV Systems by Oakes Power Services Ltd
Published 16 Dec 2022
by Daniel Oakes | Managing Director | Oakes Power Services Lts
uploaded by Chris Dodds | Sales & Marketing Manager at Thorne & DerrickÂ
Pre-Commissioning, also known as “Pre-functional Testing,” is an essential step in the installation and implementation of Low & High Voltage Electrical Power Systems – this process ensures that all components and cable accessories of the system are functioning properly and safely before the system is put into operation or “Commissioned“.
High voltage systems are critical to the operation of many industries, including utilities, manufacturing, data centres and commercial buildings. These HV systems are responsible for distributing and transmitting electrical power, and any failure or malfunction can have serious consequences, including injury, property damage, and loss of revenue.
Commissioning is a comprehensive process that involves testing and verifying the performance of all components in a high voltage system. This includes electrical and mechanical components, such as transformers, switchgear, protective devices, and control systems. The commissioning team will also verify that the system meets all safety and technical standards, and ensure that it is properly grounded and bonded.
In addition to ensuring the safety and reliability of the system, pre-commissioning can also identify potential issues and improve the overall performance of the system. This can save time and money by preventing costly repairs, mal-operation and downtime in the future.
Oakes Power Services is a leading provider of commissioning services for Low & High Voltage Electrical Power Systems – their team of experienced professionals have extensive knowledge and expertise in testing and verifying the performance of these systems using the latest tools and technology to ensure that your system is safe and operational
Oakes Power Services provide ongoing support and maintenance to keep LV HV power running smoothly.
By partnering with Oakes Power Services for your commissioning needs, you can have peace of mind knowing that your network is in good hands.

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Oakes Power Services | Electrical Power Engineering Specialists
Oakes Power Services is a high voltage electrical engineering company based in the South East of England.
Oakes Power Services offer a full electrical engineering solution from project inception right through to completion or alternatively; offer individual electrical engineering services.
With works carried out for customers across the UK in various sectors including Network Rail, London Underground, DNO, renewable energy and privately operated networks Oakes Power Services have a variety of experience which is sure to meet your needs.
Oakes Power Services are also a Oakes Power ServicesRISQS audited company and are able to provide electrical engineering/electrification services for a variety of product codes on the Network Rail and London Underground Infrastructures.
Oakes Power Services look to maintain a dedicated close working relationship to ensure the client’s needs are met with a high-quality service.
01634 940 796 | [email protected]Â
RISQS Approved to Work on UK Rail Networks
Oakes Power Services provide electrical installation and railway electrification services; encompassing HV and LV cable installation to high voltage transformers, AC & DC switchgear, rectifiers, auto transformers, protection systems, ETE, earth system installation, cable jointing, test and commissioning services and Level A AC+DC-I authorised person duties. Whatever your rail electrification requirements, Oakes Power Services can provide a site-specific solution tailored to your needs.
Thorne & Derrick supply LV HV Cable Accessories, Installation & Electrical Equipment – we can assist with the Competitive Supply & Technical Specification of joints, terminations, connectors and preparation tools for the energisation of all types of air or gas insulated electrical equipment from stock up to 66kV.
Approved Distributors for Medium Voltage Cable Accessories from 3M Electrical (ColdShrink) | Nexans (Euromold Connectors | JTS Joints | MONO Terminations) | Pfisterer Connectors (CONNEX)