We have just had an EICR undertaken and have had a large number of C3's issued because of 521.10.202 requirement to support the Wiring systems such that they will not be liable to premature collapse in the event of a fire. As we want a clean bill of health then these need to be fixed, however we are looking at a significant amount of work, as it is a largish installation. Looking at note 3, use of non-metallic clips is precluded as the sole method of support, and note 4 indicates suitable spacing of metal clips as being appropriate. A reasonable compromise would appear to be to retain the existing non-metallic fixings to hold the cables up under normal conditions and to add non-metallic fixings at much longer intervals so that in the case of fire the cables might droop a little but not collapse. Any thoughts as to whether this would be a satisfactory solution and what sort of spacing would be appropriate.
