HD 603 S1:1994/A1:1997

Overview

HD 603 S1:1994/A1:1997 (published by CLC and adopted in Slovenia as SIST HD 603 S1:1998/A1:2001) is a harmonized low‑voltage cable standard titled Distribution cables of rated voltage 0,6/1 kV. The document defines the framework for specification, conformity and use of distribution cables (0.6/1 kV) used in energy distribution and electrical installations. It is classified under ICS 29.060.20 (Cables).

Key topics and technical requirements

While the full text contains the authoritative technical content, this standard typically addresses the following core topics relevant to low‑voltage distribution cables (0.6/1 kV):

• Scope and definitions for distribution cables and related terms.
• Cable construction elements such as conductors, insulation, bedding and outer sheath materials.
• Electrical ratings including nominal voltage (0.6/1 kV) and related performance expectations.
• Mechanical and thermal properties required for safe operation (flexibility, tensile strength, temperature ratings).
• Type and performance tests (routine, sample and type tests) to verify electrical and mechanical integrity.
• Marking, documentation and packaging requirements for traceability and safe handling.
• Quality and conformity criteria to support procurement and regulatory compliance.

(These topics are standard content for HD/CLC cable standards and reflect the practical structure of HD 603 S1 series documents.)

Applications and who uses it

HD 603 S1 is intended for stakeholders involved with low‑voltage electrical distribution:

• Cable manufacturers and designers - to develop and certify cables that meet accepted performance and safety benchmarks.
• Electrical engineers and specifiers - to select appropriate 0.6/1 kV distribution cables for building, industrial and utility projects.
• Installers and contractors - to ensure installed cables meet required construction and testing practices.
• Procurement and compliance teams - for tender specifications, conformity assessment and product acceptance.
• Network operators and facility owners - for reliable power distribution in residential, commercial and industrial installations.

Typical practical uses include in‑building distribution, service mains, feeder circuits and other low‑voltage power distribution systems where 0.6/1 kV rated cables are required.

Related standards

HD 603 S1 is part of the CLC/HD family of cable standards and is commonly referenced alongside conductor, insulation and testing standards (for example, conductor and insulation IEC/EN references). Users should consult the full HD 603 S1 document and associated IEC/EN standards when specifying products or verifying compliance.

Keywords: distribution cables, 0.6/1 kV, low‑voltage cables, HD 603 S1, CLC standard, cable construction, cable testing, electrical installation.