Technical Articles
Access practical technical guides, cable selection advice, standards explanations and infrastructure design insights from Heizka.
The ELV Box: A Specification Guide for Engineers and Interior Designers
Almost every part of a low voltage installation is invisible by the time a building is handed over. Cable is…
Fire-Resistant Cable Requirements in Singapore: SS 299 and the SCDF Fire Code
What the SCDF Fire Code actually requires of fire-resistant cable in Singapore, what SS 299 covers and excludes, how it…
What Is LSZH Cable and Where Should It Be Used?
LSZH means Low Smoke Zero Halogen — a cable material description, not a complete fire-performance classification. This guide explains the…
Shielded vs Unshielded Fire-Resistant Cable: How to Choose
Shielded vs unshielded fire-resistant cable compared: what a screen does, when it is needed, grounding practice, capacitance effects, standards and…
Fire-Resistant Cable vs Flame-Retardant Cable: Key Differences
Fire-resistant and flame-retardant cables address different safety objectives. A flame-retardant cable is designed to limit flame propagation, while a fire-resistant…