IEC 62841-3-7-2020 Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 3-7: Particular requirements for transportable wall saws.
This clause of Part 1 is applicable, except as follows:
Replacement of the 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 1 00 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 1 01 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 of normative reference ISO 3744:
ISO 3744:201 0, Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane
Replacement of normative reference ISO 11201:
ISO 1 1 201 :201 0, 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 61 008-1 :201 0, Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) – Part 1: General rules
IEC 61 008-1 :201 0/AMD1 :201 2
IEC 61 008-1 :201 0/AMD2:201 3
IEC 62841 -1 :201 4, 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:
Non-instrumented 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 1 01 to entry: The primary function of a wall saw is the operation of the diamond wheel.
3.58 Modification:
Item g) is not applicable.
3.1 01 diamond wheel
metal wheel with a continuous or segmented abrasive rim
3.1 02 flange
collar, disc, or plate between or against which diamond wheels are mounted
3.1 03 rated capacity
maximum intended diameter of the diamond wheel to be fitted on the tool as recommended by the manufacturer’s instructions
3.1 04 remote connection
active communication between the tool and remote control, either wired or wireless
3.1 05 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
Note 1 to entry: Controlling a wall saw with a remote control provides improved ergonomics for the operator.
3.1 06 saw unit
unit on which the diamond wheel, the wheel guard and the interface to connect it to the track guiding system are mounted.IEC 62841-3-7 pdf download.