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What is the BS 6387: Test method for Resistance to fire for cables ?

BS 6387: Test method for Resistance to fire for cables - Test Standard：

BS 6387: Test method for resistance to fire for cables required to maintain circuit integrity under fire conditions

BS 6387: Test method for Resistance to fire for cables -Scope：

This British Standard specifies performance requirements and gives test methods for mechanical and fire tests applicable to cables rated at voltages not exceeding 450/750 V and for mineral-insulated cables conforming to BS 6207.
The cables are intened to be used for wiring and interconnection where it is required to maintain circuit integrity under fire conditions for longer periods than can be achieved with cables of conventional construction.
This standard specifies those requirements of the cables related to characteristics required to enable circuit integrity to be maintained under fire conditions.
     
BS 6387: Test method for Resistance to fire for cables -Definitions：

For the purposes of this British standard，the definition given in BS 4727-2：Group 08 apply，together with the following.
1.rated voltage U0 the power-frequency voltage to earth for which the cable is designed
2.rated voltage U the power-frequency voltage between conductors for which the cable is designed
3 .routine test a test to be conducted on all manufactured lengths
4. sample test
A test made by the manufacturer on samples of completed cable，or components taken from a completed cable， at a frequency to verify that the finished product meets the design specification.
5. type test
a test required to be made before supplying，on a general commercial basis，a type of covered by this standard in order to demonstrate satisfactory performance characteristics to meet the intended application，and that is of such a nature that after it has been made it need not be repeated unless changes are made in the cable materials or design which might change the performance characteristics.

BS 6387: Test method for Resistance to fire for cables –Test：

The tests shall be applied to cables having two or more insulated conductors，wheather or not the cables incorporate other metallic elements such as armour，screen or circuit protective conductor. The tests shall also be applied to cables having one insulated conductor provided that the cable incorporates at least one other metallic element. The test shall not be applied to cables having one insulated conductor but no other metallic element.

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