This part of IEC 61 1 56 refers to cables as described in IEC 61 1 56-5:2020 or cables containing element(s) from cables as described in IEC 61 1 56-5 which are required to maintain both circuit integrity and data transmission capability before, during and after flame application under specified conditions.
In addition to the basic cable construction, it describes the means of sample preparation,checking arrangements and gives the performance requirements, means to evaluate the data transmission capability during and after subjecting to fire, and gives means for evaluating test results and the parameters that are specified in the detail specification.
