IEC 62841-3-7:2020 This document applies to transportable wall saws guided by a track guiding system intended for dry cutting or to be connected to a liquid system for cutting concrete, stone or similar material by means of a diamond wheel. The rated speed of the diamond wheel does not exceed a peripheral speed of 100 m/s at rated capacity. The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase a.c. tools. This document does not apply to transportable wall saws that are intended to be left unattended while performing an operation. This document does not apply to transportable wall saws that employ hydraulic systems. This document does not apply to hand-held cut-off machines.