IEC 62841-4-5-2021 pdf download.Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 4-5: Particular requirements for grass shears.
This clause of Part 1 is applicable, except as follows.
Addition:
This document applies to grass shears with a maximum cutting width of 200 mm designed primarily for cutting grass.
This document does not apply to hedge trimmers.
NOTE 1 01 Hedge trimmers are covered by IEC 62841 -4-2.
2 Normative references
This clause of Part 1 is applicable, except as follows.
Addition:
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use of coating, potting or moulding for protection against pollution
IEC 60664-4, Insulation coordination for equipment within low-voltage systems – Part 4: Consideration of high-frequency voltage stress
ISO 354:2003, Acoustics – Measurement of sound absorption in a reverberation room
ISO 22868:201 1 1 , Forestry and gardening machinery – Noise test code for portable hand-held machines with internal combustion engine – Engineering method (Grade 2 accuracy)
Replacement:
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
3 Terms and definitions
This clause of Part 1 is applicable, except as follows.
3.1 01
blade tooth
part of the cutter blade which is sharpened to perform the shearing action
Note 1 01 to entry: See Figure 1 01 and Figure 1 02.
3.1 02 cutter blade
part of the cutting device having blade teeth which cut by shearing action either against other blade teeth or against a shear plate
Note 1 01 to entry: See Figure 1 01 and Figure 1 02.
3.1 03 cutting device
part of the assembly of cutter blade and shear plate or of two cutter blades together with any supporting part which performs the cutting action
Note 1 01 to entry: See Figure 1 01 and Figure 1 02.
3.1 04 cutting width
effective width of cut of the cutting device measured from the inside edge of the first blade tooth or shear plate tooth to the inside edge of the last blade tooth or shear plate tooth, whichever is the greater
Note 1 01 to entry: See Figure 1 01 and Figure 1 02.
3.1 05 extension shaft
shaft which enables the operator to cut grass while in a standing position, which is either permanently attached to or removable from the machine
3.1 06 grass shear
hand-held scissors type grass-cutting machine with either one or two cutter blades where either one or both cutter blade(s) reciprocate along a straight or curved path
Note 1 01 to entry: See Figure 1 03.
Note 1 02 to entry: These machines are intended to be held in the hand during normal use, including machines which will not maintain their operating position unless supported, possibly with an extension shaft and/or assisted by wheel(s), skid(s) or similar.
3.1 07 maximum speed
highest cutting device speed attainable under all conditions of normal use, including no-load
3.1 08 operator presence sensor
device to detect the presence of an operator’s hand.IEC 62841-4-5 pdf download.