LSZH or LSHF cables are not flame retardant. Some cables use polyurethane jackets that while emitting low levels of nasties, actually burn at a fast rate dripping burning plastic onto whatever is below. If flame retardant cables are required, look for FRNC (Flame Retardant Non-Corrosive).
No, LSZH (Low Smoke Zero Halogen) and flame retardant are not the same. LSZH refers to materials that produce limited smoke and do not emit toxic halogen-based chemicals when burned. Flame retardant materials are designed to resist ignition and slow down the spread of flames in a fire. While some LSZH materials may also be flame retardant, they serve different purposes in terms of fire safety.
Zurich Airport, SwitzerlandIATA airport code: ZRHICAO airport code: LSZH
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