EN 15571-2020 pdf download.Machines and plants for mining and tooling of natural stone – Safety -Requirements for surface-finishing machines.
4.4.3 Electrical hazards
With the exception of 6.3, the requirements of EN 60204-1:2018 apply unless stated otherwise in this document.
See EN 60204-1:2018, 6.2. for the requirements regarding prevention of electric shock due to direct contact and EN 60204-1:2018, Clause 7, for the requirements regarding protection against short circuits (feeder circuit excluded) and overloading.
The machine manufacturer shall provide the protective bonding system of the machine up to the PE terminal and shall provide the user with information on how to complete protection against electric shock due to indirect contact [see 5.4.2 s)].
The machine manufacturer shall provide the user with information on how to provide the protection against short circuiting of the feeder circuit Isee 5.4.2 t)J.
NOTE 1 The protection against short circuiting of the feeder is not up to the machine manufacturer.
The degree of protection of all electric components outside of enclosure(s) and the enclosure(s) for electrical components itself/themselves shall be at least IP 54 in accordance with the requirements of
EN 60529:1991, EN 60529:1991/A1:2000, EN 60529:1991/A2:2013.
Electrical enclosures shall not be exposed to risk from the ejection of tools orworkpieces. Live parts shall not be accessible in accordance with EN 60204-1:2018, 6.2.2. Fire risk is not present where power circuits are protected against overcurrent in accordance with EN 60204-1:2018, 7.2.3.
In accordance with EN 60204-1:2018, 18.1, the test I for the continuity of the protective bonding circuit and with EN 60204-1:2018, 18.6, the functional test apply.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine and relevant tests (EN 60204-1:2018, 18.2, test 1, and functional test according to EN 60204-1:2018, 18.6).
4.4.4 Ergonomics and handling
The machine and its controls shall be designed according to ergonomic principles in accordance with
EN 1005-4:2005+A1:2008.
Parts of the machine weighing more than 25 kg and that need to be replaced/removed shall be equipped with means for safe handling or enable safe lifting, such as attachments to accommodate the fitting of a lifting device in accordance with EN 1005-2:2003+A1:2008. These attachments shall be positioned such as to avoid machine or components overturn or fall or move in an uncontrolled way during transport, assembly, dismantling, disabling and scrapping.
Verification: By checking the relevant drawings and/or circuit diagrams, inspection of the machine.
4.4.5 Hydraulic and pneumatic components
The hydraulic and pneumatic systems shall comply with the requirements of EN ISO 4413:20 10 and
EN ISO 4414:2010.
When compressed air comes from a compressor outside the machine, the input point shall be fitted with a gate valve which makes it possible to close the air supply.
VerWcation: By checking the relevant drawings and/or circuit diagrams, inspection of the machine and functional testing of the machine
4.4.6 Electromagnetic compatibility
The machine shall have a low electromagnetic emission level and sufficient immunity to electromagnetic disturbances to enable it to operate correctly in accordance with EN 61439-1:2011, EN 50370-1:2005, and EN 50370-2:2003.
Machines which incorporate CE.marked electrical components and where such components and cabling are installed in accordance with their respective manufacturer’s instructions, are generally considered to be protected against external electromagnetic interference.
If only one of the above-mentioned requirements is not fulfilled, additional testing in accordance with EN 50370-2:2003 is required.
Verification: By checking the relevant drawings and/or circuit diagrams and inspection of the machine. 4.4.7 Unintended movements
Machines shall be designed and constructed in order to minimized any hazard resulting from raised elements falling due to gravity, e.g. in the event of failure of any energy supply (see 4.2.8) or fault.
L)evices used to prevent gravity fall, for example:
— check valve piloted valve or a shut-off valve, which are fixed directly to the drive element, e.g. cylinder;
— friction-locked clamping device;
and their associated components/actuators shall be capable of holding a load of at least 1,5 x the static holding load.
Verfication: By calculation, checldng the relevant drawings and/or circuits diagrams, inspection of the machine.EN 15571-2020 pdf download.
EN 15571-2020 pdf download
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