Building and Construction Cable Standards Evolve: Safety Compliance Takes Center Stage
While the following standard change originates from the Chinese market, its underlying safety philosophy reflects a global trend: building cables are transitioning from simply "flame-retardant" to "life-safety" products.
Regulatory Shift:
New technical specifications for cable procurement, taking effect in July 2026, mandate that in bids for high-rise and underground projects in state-owned enterprises, municipal, and real estate sectors, cables with only standard PVC flame retardancy will now be automatically disqualified rather than merely penalized . Low Smoke Zero Halogen (LSZH) cables have become a mandatory qualification for high-risk projects.
Safety Rationale:
In fire incidents, the dense smoke and toxic gases emitted by burning cables pose a greater threat than the flames themselves. While standard PVC flame-retardant cables can slow fire spread, they release large amounts of smoke and corrosive hydrogen halide gases when burned at high temperatures. In high-rise buildings and underground pipe galleries, these emissions can block escape routes and cause suffocation within minutes . LSZH cables emit minimal smoke and no toxic halogens when exposed to fire, improving visibility and reducing harmful fumes.
Industry Impact:
Manufacturers must invest in dedicated LSZH production lines and comprehensive certification, creating market access barriers for smaller producers
The competitive dynamic is shifting from "flame-retardant comparison" to "post-fire escape safety"
This trend aligns with international building regulations, including the Construction Products Regulation (CPR) EN 50575 in Europe and BS7671 18th Edition in the UK, which mandate fire performance testing and classification for cables used in construction .
