UL 62841-3-7:2021 free download STANDARD FOR SAFETY Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 3-7: Particular Requirements for Transportable Wall Saws
1 Scope
This clause of Part 1 is applicable, except as follows:
Replacement ofthe third paragraph:
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.
Addition:
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.
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.
NOTE 101 Hand-held cut-off machines will be covered by a future part of IEC 62841-2.
2 Normative references
This clause of Part 1 is applicable, except as follows:
Replacement ofnormative reference ISO 3744:
ISO 3744:2010, Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods foran essentiallyfree field overa reflecting plane Replacement ofnormative reference ISO 11201:
ISO 11201:2010, Acoustics – Noise emitted by machinery and equipment – Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections.
IEC 61008-1:2010, Residual current operated circuit-breakers without integral overcurrent protection for household and similaruses (RCCBs) – Part 1: General rules
IEC 61008-1:2010/AMD1:2012
IEC 61008-1:2010/AMD2:2013
IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery– Safety– Part 1: General requirements
ISO 6603-1, Plastics – Determination of puncture impact behaviour of rigid plastics – Part 1: Noninstrumented impact testing
3 Terms and definitions
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
This clause of Part 1 is applicable, except as follows:
3.36 Addition:
NOTE 101 to entry: The primary function of a wall saw is the operation of the diamond wheel.
3.58 Modification:
Item g) is not applicable.
3.101
diamond wheel
metal wheel with a continuous or segmented abrasive rim
3.102
flange
collar, disc, or plate between or against which diamond wheels are mounted
3.103
rated capacity
maximum intended diameter of the diamond wheel to be fitted on the tool as recommended by the manufacturer’s instructions
3.104
remote connection
active communication between the tool and remote control, either wired or wireless
3.105
remote control
unit with an enclosure separate from the wall saw with user controls consisting of at least a power switch for attended operation of the wall saw
UL 62841-3-7:2021 free download
