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For the purposes of its contract with the Commission, CEN has defined three types of X8 I" o, y- m( T+ w+ Y9 q
harmonized standard, A, B and C. This terminology is specific to the standards drafted& s3 o s8 O. O$ d# x6 u- P
under the machinery Directive. Classes A, B and C do not have the same meaning under
9 _5 O8 f% X( R: _+ e, Bother Directives, such as “construction products” (89/106/EEC as amended).35! @8 L3 ]5 }+ @" g X) ~# {) p! s
-A standards deal with basic concepts concerning all machinery; standard EN 292 is an* `( l; w0 z8 ]) r" I1 n) A T: U
example of this category;- p+ `( T/ w9 _" y& |
- B1 standards deal with safety aspects concerning a range of machinery such as safety
8 Y' E% D. G7 ]4 kdistances, calculation methods for lifting equipment, etc.; examples of these are
% X! Y9 ~% y; [8 K) b. i, UEN 294 on safety distances and EN 563 on temperatures of touchable surfaces;
+ e' _0 u" a" `& S$ H) J3 o, c- B2 standards deal with components or devices, such as safety devices, which are used
& e- ^$ K9 n! Non a wide variety of machinery; EN 281, on the design of pedals, is an example;
, B+ g; X I" V-C standards are “vertical” standards covering a single type of machinery. |
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