[email protected]

building services cable

8 Min Read
IEC 60502 is an international standard published by the International Electrotechnical Commission (IEC) that sets out the specification for power cables with extruded insulation. The standard covers cables with voltage ratings from 1 kV (Um = 1.2 kV) up to 30 kV (Um = 36 kV), designed for fixed installations such as distribution networks and industrial installations. This widely recognized standard serves as a primary reference for cable manufacturers worldwide and forms the basis for numerous national and regional cable standards.
Technical Department
on29/12/2025

What is IEC 60502 Cable?

IEC 60502 對導體類型、絕緣材料和護套化合物提供了詳細規格。絕緣材料包括 PVC（最高溫度 70°C）、XLPE、EPR 和 HEPR（均為最高 90°C）。導體類別包括第 1 類（實心）、第 2 類（絞合）和第 5 類（柔性），尺寸範圍從 1.5 mm² 到 1600 mm²。護套化合物包括 PVC、PE 和用於防火敏感區域的無鹵素材料。XLPE 絕緣的標稱厚度從 0.6/1 kV 的 1.0 mm 到 18/30 kV 的 8.0 mm 不等。
5 Min Read
British Standard BS7629-1 specifies the requirements for fire resistant screened cables with low smoke and corrosive gas emissions and a voltage rating of 300/500V for fixed installation. These cables are designed to maintain circuit integrity under the effects of fire, mechanical shock, and water for a prescribed period of time, supporting fire-fighting efforts and protecting lives and essential equipment.
Technical Department
on19/12/2025

What is BS7629-1 Cable?

BS7629-1, BS7629-1 cable, fire resistant cable, fire alarm cable, emergency lighting cable, LSZH fire cable, PH30 cable, PH60 cable, PH120 cable, fire rated cable, circuit integrity cable, fire survival cable, screened fire cable, fire detection cable, silicone rubber fire cable, mica tape cable, enhanced fire resistant cable, standard fire resistant cable, fire resistant screened cable, low smoke fire cable, halogen free fire cable, life safety cable, BASEC approved cable, LPCB certified cable, BS EN 50200 cable, BS 8434-2 cable, BS 5839-1 cable, BS 5266-1 cable, BS 8519 cable, 300/500V fire cable, multicore fire cable, fire alarm system cable, voice alarm cable
9 Min Read
Variable Speed Drive Cable with Copper Tape Screening for Superior Electromagnetic Compatibility in Industrial Motor Control Applications
Technical Department
on09/12/2025

What is VAROLEX® VSD/EMC 3C+3E Cable?

The VAROLEX® VSD/EMC cable represents a specialized engineering solution designed specifically for variable speed drive (VSD) applications where electromagnetic compatibility (EMC) is a critical operational requirement. Manufactured by Anhui Feichun Special Cable Co., Ltd (安徽飞纯特种电缆有限公司), this cable incorporates a symmetrical 3C+3E (three core plus three earth) configuration with copper tape screening to effectively mitigate electromagnetic interference (EMI) emissions that are inherent to modern pulse-width modulation (PWM) drive systems.
14 Min Read
EN 50525-2-31 Cable
Technical Department
on11/11/2025

UK and Harmonized CENELEC Coding Cross References: BS 6004 vs EN 50525-2-31 Cable

The transition from traditional UK cable coding systems to harmonized European CENELEC standards represents a significant evolution in electrical cable specifications. The British Standard BS 6004, which has long governed PVC-insulated cables for voltages up to 300/500V in the United Kingdom, has been progressively superseded by the harmonized European standard EN 50525-2-31. This comprehensive technical guide examines the cross-references between these standards, providing detailed analysis of cable designations, specifications, applications, and compliance requirements essential for electrical engineers, contractors, and procurement professionals.