Standard Specification for Mineral Wool Roof Insulation Board Ingestion-build-58863 The requirements of the sleeve

The requirements of the sleeve which protect the internal electrical harness against fire for five minutes and ensure that the electrical characteristics of cables will not be degraded are provided in BS EN 6049-009

This part of IEC 60332 covers category C for methods of test for the assessment of vertical flame spread of vertically mounted bunched wires or cables

then examined under a microscope

It is anticipated that further language binding development will be required

The significant technical changes are as follows:

Standard Specification for Mineral Wool Roof Insulation Board Ingestion-build-58863 The requirements of the sleeve