This International Standard is applicable to electrical insulating matting made of elastomer for use as a floor covering for the electrical protection of workers on electrical installations. NOTE 1 For a.c. electrical classification, as well as d.c. use, see 4.1. NOTE 2 This document gives a.c. test provisions. There is limited history for use in d.c. applications. NOTE 3 See Annex A for suggested maximum voltage use.