Cable protection with flexible water hose

Good afternoon! Tell me, is it permissible to use a flexible hose instead of a corrugation (plumbing, rubber with metal reinforcement outside)? In a short section (cm 50) for the wire of an external outlet, with protective purposes, in a dry room. The wire inside 2 * 1.0 copper was multi-strand., The maximum load is 500 watts. For a long time I kept the inner rubber above the lighter: it smokes, but it does not burn.