EN 50107-1:2002/A1:2004

Overview

EN 50107-1:2002/A1:2004 is a CENELEC amendment to the European standard covering signs and luminous-discharge-tube installations that operate from a no‑load rated output voltage exceeding 1 kV but not exceeding 10 kV. Part 1 sets the general requirements for design, installation records and safety arrangements for high‑voltage sign and discharge‑tube systems. Amendment A1 (approved 2004‑03‑01) introduced editorial and clause updates (notably to site records) and was required to be adopted nationally by 2004‑09‑01. Work originally handled by BTTF 60‑2 has been referred to TC 34Z; the CLC legacy was converted in 2021 by DCLab NISOSTS.

Key topics and requirements

The standard Part 1 focuses on general, high‑level requirements relevant to installations with no‑load output voltages between 1 kV and 10 kV. Key areas covered or affected by this amendment include:

• Scope and applicability for signs and luminous‑discharge‑tube equipment operating in the specified voltage range.
• Safety and installation principles to ensure installations are designed and maintained in a safe manner (electrical safety, access, and hazard control).
• Documentation and site records - amendment A1 clarifies site record references (clause 20.2 amended to refer to 20.1).
• Compliance and national adoption - instructions for how CENELEC members must adopt the amendment as national standards. Note: This overview avoids inventing specific technical limits or test procedures not contained in the published amendment text.

Practical applications

This standard is used to:

• Guide designers and system integrators when specifying high‑voltage signage and discharge‑tube installations.
• Inform installers and electrical contractors about general requirements and necessary documentation for safe installation.
• Support inspectors, maintenance teams and safety officers responsible for verifying compliance and maintaining site records.
• Help manufacturers and product assessors align product interface and installation instructions with European general requirements.

Who should use it

• Electrical contractors and installation engineers working on high‑voltage signage
• Safety and compliance officers in facilities with luminous‑discharge‑tube systems
• Standards managers, testing labs and certification bodies referencing CENELEC norms
• Manufacturers of transformers, power supplies and complete sign assemblies

Related standards and references

• EN 50107-1:2002 (original Part 1)
• Subsequent parts or amendments of EN 50107 series (for specific technical, testing or installation details)
• CENELEC/TC 34Z related workstreams and national adoptions

Keywords: EN 50107-1, EN 50107-1:2002/A1:2004, signs and luminous-discharge-tube installations, high-voltage signs, 1 kV to 10 kV, site records, CENELEC, electrical safety standard.