Hi! The acronym LSZH (low-smoke zero-halogen) addresses several cable properties in fire, namely: * low emission of smokes and opaque fumes according to IEC 61034-1 and IEC 61034-2; * emission of no corrosive gases according to IEC 60754-1 and IEC 60754-2; * emission of no toxic gases. As far as the last property is concerned (i.e., toxicity of the emitted gases), AFAIK no IEC standard exists yet but each country has its own. Italy has CEI 20-37/7 "Prove sui gas emessi durante la combustione di cavi elettrici e dei materiali dei cavi Parte 7: Determinazione dell’indice di tossicità dei gas emessi dai cavi", France has NF C32-070 Mars 1991 "Conducteurs et câbles isolés pour installations - Essais de classification des conducteurs et câbles du point de vue de leur comportement au feu (Contitue par Additif 1 de 1992, Additif 2 de 1993)", in UK the Naval Engineering Standard NES 713 "Toxicity Index" is used, etc., etc. I hope this helps! Cheers Canio Dichirico European Southern Observatory Technical Division Electronic Systems Department Karl-Schwarzschild-Str. 2 D-85748 Gaching bei München
Tel. +49-(0)89-3200 6500 Fax. +49-(0)89-3200 6694 Email [email protected] www.eso.org From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, 14 May, 2003 14:56 To: [email protected] Subject: Low Smoke Halogen Free Cables We now have a significant number of European customers asking for low smoke, halogen free I/O cables to be used in the installation of our systems. Are any European Norms for these types of cables? If not, are there any other European or IEC standards that are used? Richard Woods Sensormatic Electronics Tyco International
