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ISO9001 Certification

ISO9001 LogoCharnvel Ltd are working in accordance with ISO9001

Barking Switchboard Witness Test

As part of our supply to Barking substation in Essex, a factory witness test was performed.

I just wanted to write to say thank you for your time and efforts yesterday during our visit to your factory. It was a thoroughly enjoyable and productive day from my point of view. I can see the quality and care of your production first hand and I felt that all your staff made us very welcome indeed from the moment we arrived in the morning until we left site. You kept us fed and watered and I felt that nothing was too much trouble for you which certainly makes a change from many other suppliers.
I look forward to receiving the switchboard at Barking in due course and I am sure it will give many years of reliable service on the National Grid transmission system. I am particularly heartened that it has been designed, assembled and manufactured in the UK by a British company. Keep up the excellent work and please pass on my appreciation to all your staff.

James Watson CEng, MIET
Protection Engineer
National Grid

Type Testing for NGTS 3.12.3 issue 6

Some images of the type testing process.


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Charnvel Ltd. are approved with the Rail Industry Supplier Qualification Scheme (RISQS) to manufacture and supply the following:

  • D.E.1.1 LV Switchgear
  • D.F.7 Shore Supplies & Battery Chargers
  • F.C.2.2 Depot Conductor Systems

Our RISCS ID number is 1585

National Grid Type Approval


NG-Logo.gifCharnvel Ltd. were the first in the U.K to obtain 'Type Registration' in accordance with NGTS 3.12.3 issue 6 June 2007 for substation LVAC supplies. This involved subjecting our System 50 switchboard assembly to short circuit withstand, temperature rise testing to receive ASTA certification of our busbar and enclosure systems.

  • Our 400-800A switchboards have been assigned the AMEB01 E.G.I code.
  • Our 1250-1600A switchboards have been assigned the AMEB02 E.G.I code.
  • Our System 50 – 800A Outdoor Intermediate Boards have been assigned the AMEB23 E.G.I Code

Having completed well over 60 projects, Charnvel Ltd are considered to be the leading manufacturer and supplier of Type Registered LVAC switchboards to National Grid and its sub contractors.

Contact This email address is being protected from spambots. You need JavaScript enabled to view it. to discuss your requirements.
National Grid logo copyright its owner.

Achilles and UVDB certification

Charnvel Ltd is registered as a supplier with Achilles.achilles-logo.png

We are pre-qualified to supply to the Utilities business sector with a Utility Vendor DataBase ID of 81474.

RISQS, (formerly known as Achilles Link-up) is the UK rail industry supplier qualification scheme, providing a single common registration, qualification and audit process for suppliers that is shared by the UK rail industry.

We are pre qualified to supply to the rail sector with a RISQS ID of 3643.RISQS-logo.png

Shore Supply Product Acceptance

Since 1997 Charnvel Ltd have received Product Acceptance from Network Rail for the supply of 400V, 3 Phase A.C Shore Supplies.
Certificate Number PA05/03044

Network Rail 400V Switchboards Product Acceptance


Since 1994 Charnvel Ltd have received Product Acceptance from Network Rail for the supply of 400V Switchboards and Changeover Panels.
Certificate Number PA05/01712