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For the purposes of its contract with the Commission, CEN has defined three types of' _! L% w6 T( ^, r
harmonized standard, A, B and C. This terminology is specific to the standards drafted
" d6 R& r; {: w% t! {! zunder the machinery Directive. Classes A, B and C do not have the same meaning under
* f: o* Y0 I9 c) @ Y' bother Directives, such as “construction products” (89/106/EEC as amended).35
( p2 ^2 K1 |' E1 Y, p-A standards deal with basic concepts concerning all machinery; standard EN 292 is an
8 w5 z' e( v, [" a1 Hexample of this category;
1 B! g) [! ~ {2 z8 x( {7 y1 h- B1 standards deal with safety aspects concerning a range of machinery such as safety2 {( X6 H5 o7 K" b/ e3 C
distances, calculation methods for lifting equipment, etc.; examples of these are
6 L% j3 C5 J% W# ~2 SEN 294 on safety distances and EN 563 on temperatures of touchable surfaces;
9 s/ H( b* j! Y3 c- B2 standards deal with components or devices, such as safety devices, which are used
) D( Q% `# K! A+ O8 f4 x& Yon a wide variety of machinery; EN 281, on the design of pedals, is an example;- Q( l9 X9 H, U2 Z$ W4 P1 ~
-C standards are “vertical” standards covering a single type of machinery. |
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