IEC 60332-1-2-2004
Tests on electric and optical fibre cables under fire conditions Part 1-2: Test for vertical flame propagation for a single insulated wire or cable Procedure for 1 kW pre-mixed flame (Edition 1.0; Replaces IEC 60332-1:1993)

Essais des c?bles électriques et à fibres optiques soumis au feu Partie 1-2: Essai de propagation verticale de la flamme sur conducteur ou c?ble isolé Procédure pour flamme à prémélange de 1 kW (Edition 1.0; Replaces IEC 60332-1:1993)

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标准号

IEC 60332-1-2-2004

发布日期

2004年07月01日

实施日期

2015年07月30日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

IEC - International Electrotechnical Commission

引用标准

30

适用范围

This part of IEC 60332 specifies the procedure for testing the resistance to vertical flame propagation for a single vertical electrical insulated conductor or cable@ or optical fibre cable@ under fire conditions. The apparatus is given in IEC 60332-1-1.NOTE 1 Testing to IEC 60332-1-2 may be performed simultaneously with that to IEC 60332-1-3 if required.Recommended requirements for performance are given in Annex A.IEC 60332-1-2 specifies the use of a 1 kW pre-mixed flame and is for general use@ except that the procedure specified may not be suitable for the testing of small single insulated conductors or cables of less than 0@5 mm? total cross-section because the conductor melts before the test is completed@ or for the testing of small optical fibre cables because the cable is broken before the test is completed. In these cases@ the procedure given in IEC 60332-2-2 is recommended.NOTE 2 Since the use of insulated conductor or cable which retards flame propagation and complies with the recommended requirements of this standard is not sufficient by itself to prevent propagation of fire under all conditions of installation@ it is recommended that wherever the risk of propagation is high@ for example in long vertical runs of bunches of cables@ special installation precautions should also be taken. It cannot be assumed that because the sample of cable complies with the performance requirements recommended in this standard@ that a bunch of cables will behave in a similar manner. (See IEC 60332-3 series.)

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