FR:<\/p>\n
According to its fire behavior may appear different acronym:<\/p>\n
– FLAME RETARDANT. To the following standards referred:<\/p>\n
EN 60332-1: Tests on electric and optical fibre cables under fire conditions. Tests for vertical flame propagation for a single insulated wire or cable. IEC 60332-1 also.<\/p>\n
EN 60332-2: Tests on electric and optical fibre cables under fire conditions — Part 2-1: Test for vertical flame propagation for a single small insulated wire or cable. IEC 60332-2 also.<\/p>\n
– FIRE RETARDANT. To the following standards referred:<\/p>\n
EN 60332-3: Tests on electric and optical fibre cables under fire conditions. Test for vertical flame spread of vertically-mounted bunched wires or cables. IEC 60332-3 also.<\/p>\n
There are different categories: A, B, C, D.<\/p>\n
– FIRE RESISTIVE. To the following standards referred:<\/p>\n
IEC 60331: Tests for electric cables under fire conditions. Circuit integrity.<\/p>\n
The difference between Retardant and Resistive is that Retardant one resists the spread of fire into a new area and Resistive one maintain the circuit integrity and can continue to work (under specific conditions) for a time.<\/p>\n
LSOH or LSZH:<\/p>\n
These initials indicate LOW SMOKE + O (Zero) HALOGENS:<\/p>\n
– LOW SMOKE. To the following standards referred:<\/p>\n
EN 61034: Measurement of smoke density of cables burning under defined conditions. IEC 61034 also.<\/p>\n
So Low Smoke means low opacity of smoke emitted.<\/p>\n
– O (Zero) HALOGEN. To the following standards referred:<\/p>\n
EN 50267: Common test methods for cables under fire conditions. Test on gases evolved during combustion of materials from cables. Determination of the amount of halogen acid gas. IEC 60754 also.<\/p>\n
So Zero Halogens mean no acid gases emitted by the combustion.<\/p>\n
RoHS:<\/p>\n
Restriction of the use of certain Hazardous Substances (Directive 2011\/65\/EU): It Is a directive of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (before Directive 2002\/95\/EC).<\/p>\n
So when a cable has passed the RoHS restrictions is that the cable does not contain any of the hazardous substances on the directive document list.<\/p>\n
Bibliography:<\/p>\n
www.aenor.es<\/p>\n
www.webstore.iec.ch<\/p>\n
www.ec.europa.eu<\/p>\n","protected":false},"excerpt":{"rendered":"
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