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Electrical services. Electrical safety guidance for high voltage systems (Welsh version)

Health Technical Memorandum 06-03

Electrical services. Electrical safety guidance for high voltage systems (Welsh version)

Document Status



Core Supplement


Health Technical Memorandum


Provides operational guidance relating to electrical safety requirements for high voltage systems in healthcare premises.


Replaces HTM 2021 - Electrical safety code for high voltage systems (Escode HV), 1993. Status note amended May 2021. This document shares a number of model forms with HTM 06-02: Electrical safety guidance for low voltage systems. When completing the forms Health Boards and Trusts should consider ways to clearly distinguish between low voltage and high voltage forms particularly when both systems are present on one site.


Publisher History

NHS Wales Shared Services Partnership provide advice to the Welsh Government on strategic issues and support to the NHS on the delivery of their operational plans.



NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

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