James Sherwin
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James Sherwin Email & Phone Number

Network Rail Level A/B/C Trainer and assessorCrossrail Nominated Person and SAP 11/22/25kV at HV Power Services Ltd
Location: Cobham, England, United Kingdom 11 work roles 3 schools
1 work email found @carillionplc.com LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

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Work email j****@carillionplc.com
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Current company
HV Power Services Ltd
Role
Network Rail Level A/B/C Trainer and assessorCrossrail Nominated Person and SAP 11/22/25kV
Location
Cobham, England, United Kingdom

Who is James Sherwin? Overview

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Quick answer

James Sherwin is listed as Network Rail Level A/B/C Trainer and assessorCrossrail Nominated Person and SAP 11/22/25kV at HV Power Services Ltd, based in Cobham, England, United Kingdom. AeroLeads shows a work email signal at carillionplc.com and a matched LinkedIn profile for James Sherwin.

James Sherwin previously worked as Senior Engineer at Hv Power Services Ltd and Managing Director at Hv Power Services Ltd. James Sherwin holds Onc, Onc Electrical And Electronic Engineering from 2003-2005 - Nwk College Of Technology.

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Email format at HV Power Services Ltd

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{first}.{last}@carillionplc.com
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Profile bio

About James Sherwin

Experienced Senior Engineer with a demonstrated history of working in the facilities services industry and rail. Skilled in Facility Management (FM), critical power, rail training and assessing, OHLE, transformers and HV Switchgear. Strong engineering professional with a ONC focused in Electrical and Electronic Engineering and over 20 years experience in HV, power, training and management.

Listed skills include High Voltage, Electricians, Engineering, Switchgear, and 18 others.

Current workplace

James Sherwin's current company

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HV Power Services Ltd
Hv Power Services Ltd
Network Rail Level A/B/C Trainer and assessorCrossrail Nominated Person and SAP 11/22/25kV
11 roles

James Sherwin work experience

A career timeline built from the work history available for this profile.

Senior Engineer

Current
Hv Power Services Ltd

London, United Kingdom

Feb 2018 - Present

Managing Director

Current
Hv Power Services Ltd

London, United Kingdom

Feb 2018 - Present

Senior Engineer

Surrey Quays, London

Main roles:High Voltage Engineer and Level A for Network RailLevel A/B/C/D assessor and Trainer for Network RailHV power maintenance planning, testing and servicing of 33kV switchgear 750 volt traction power servicing and testingHigh voltage AC and traction DC protection testingElectrical technical advise and network surveyingMentoring of Level B/C/D staffother roles include;Building HV and heavy current switchgear maintenance and protection testingPower quality surveying and power usage reductionPartial discharge testingSenior authorised person duties and technical advice/support to many CEM sites across the UKCable fault location

Feb 2013 - Feb 2018

Senior Engineer

London, United Kingdom

Feb 2008 - Feb 2018

High Voltage Project Engineer

Carillion Planned Maintenance

Main roles and responsibilities:Project management of HV projects for install and maintenanceHV support nationwide to Carillion sitesAuthorised person support up to 11kV nationwidePreventative and reactive maintenance of HV switchgearHV training of prospective AP's within CarillionPartial discharge testing/surveys and reportsBuildings electrical schematic drawing design and productionContracts worked on- Olympic Park, Nomura, UBS, RBS, MOD, Verizon, Tishman Speyers, AXA, Financial Times, Newsprint International, Unilever

Mar 2008 - Feb 2013

High Voltage Engineer

Carillion
Feb 2001 - Feb 2013

High Voltage Lead Technician/Senior Authorised Person

Hvms, Dartford, Kent

HVMS install and maintain high voltage switchgear and associated electrical equipment for Distribution Network Operators and private networks up to 132kV. Starting as an electrical mate I have trained toward technician grade then onto lead technician. For the last four years I project managed a ground lighting contract for London City Airport. I was also HVMS' principal cable fault location engineer. Project management of £2.5M HV/LV installation at Europe's largest data centre built to date Project Management of HV infrastructure Project including full CDM responsibility for Hospital PFI project circa £200KProject Management of HV/LV infrastructure Project Mercedes HPE circa £250KProject Management of long term Airfield Lighting Contract at London City Airport.Installation and maintenance of 11,000 Volt Switchgear and power transformersCable fault location using many varied methods up to 33,000 Volts Installation of cable networks indoor and outdoor including LV jointing and terminatingDiesel generator inspection and maintenanceAirfield ground lighting installation and maintenanceStandby generator weekly checks and maintenanceRegular stand in for Operations Manager when requiredResponding to emergency call outsSenior authorised person training up to 11,000 volts

Mar 2002 - Feb 2008

High Voltage Engineer

Hvms

Dartford, United Kingdom

Feb 2001 - Feb 2007

Fibre Optics Technician

Alcatel Submarine Networks

Alcatel Submarine Networks is a manufacturer and supplier of underwater repeater systems for high speed continental fibre optic links. I worked directly with the branching units, amplifiers and equalizers that make up the links, from first build to final housed units. Reason for leaving: redundancyOptical/Electrical component testing/splicingBuild and test of optic modules and amplifiersPermanent/temporary fusion splicingImprovement of technical specs and QCSDH/SONET repeater systems test/repair Optical repeater fault diagnosis and repairResponsibilities:- supervisory cover, upkeep of paperwork for each contract; running test equipment; upkeep of tools and checking of calibration.

Feb 2000 - Jan 2002

Test Engineer

Aei Cables
May 1994 - Feb 2000

Electrical Test Engineer

Aei Cables, Gravesend, Kent

AEI Cables is a manufacturer of high voltage cables (1kV-132kV). I worked in the test department testing final product cables before leaving the factory.Reason for leaving: advanced career prospects and more specialist roleHV testing up to 190kV DC voltage testing and fault locationPartial discharge testingInsulation/conductor resistanceFault location including TDR, SIM and resistance methodsQuality inspectionWriting of technical specs/methods of testFibre optic testing/OTDR/lab splicingTesting all HV cable to British StandardsType testing/Lab testing cable componentsUpkeep and calibration of all test equipmentHigh voltage cable terminationsUse of 25Ton overhead cranesResponsibilities: - Supervisor to the shop floor team of 14 people, conducting interviews, working to daily deadlines of passed goods, upkeep of all paper work and specifications, safety for all high voltages tests performed.

May 1994 - Feb 2000
3 education records

James Sherwin education

Onc, Onc Electrical And Electronic Engineering

2003-2005 - Nwk College Of Technology

2006 - Develop Training School, York. BTEC credit aeronautical ground Lighting Part ALG03 2008-2010 Penmark Training Institute of Line.

Education record

North West Kent College

COTAC 1 Pass COTAC 2 Pass 2002 - 2003 - TBG college, Gravesend, Kent. City and Guilds Electronic servicing Part 7261/ 425 City and Guilds.

Hnc (Distinction), Electrical Engineering

North West Kent College
FAQ

Frequently asked questions about James Sherwin

Quick answers generated from the profile data available on this page.

What company does James Sherwin work for?

James Sherwin works for HV Power Services Ltd.

What is James Sherwin's role at HV Power Services Ltd?

James Sherwin is listed as Network Rail Level A/B/C Trainer and assessorCrossrail Nominated Person and SAP 11/22/25kV at HV Power Services Ltd.

What is James Sherwin's email address?

AeroLeads has found 1 work email signal at @carillionplc.com for James Sherwin at HV Power Services Ltd.

Where is James Sherwin based?

James Sherwin is based in Cobham, England, United Kingdom while working with HV Power Services Ltd.

What companies has James Sherwin worked for?

James Sherwin has worked for Hv Power Services Ltd, Carillion Rail, Carillion, Carillion Planned Maintenance, and Hvms, Dartford, Kent.

How can I contact James Sherwin?

You can use AeroLeads to view verified contact signals for James Sherwin at HV Power Services Ltd, including work email, phone, and LinkedIn data when available.

What schools did James Sherwin attend?

James Sherwin holds Onc, Onc Electrical And Electronic Engineering from 2003-2005 - Nwk College Of Technology.

What skills is James Sherwin known for?

James Sherwin is listed with skills including High Voltage, Electricians, Engineering, Switchgear, Transformer, Building Services, Generators, and Inspection.

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