ČSN EN 131-1 +A2 (493830)

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This European Standard defines terms and specifies the general design characteristics of ladders.
It applies to portable ladders designed for general professional and non-professional use.
This standard does not apply to portable ladders which by their design and instructions are intended and limited only for a specific professional use and as a result are not for general professional or non-professional use.
NOTE 1 - For multiple hinge joint ladders EN 131-4 applies.
NOTE 2 - For telescopic ladders EN 131-6 applies.
NOTE 3 - For mobile ladders with platforms EN 131-7 applies.
NOTE 4 - This standard does not apply to step stools for which EN 14183 applies.
NOTE 5 - For ladders to work near high voltage installations, EN 61478 applies and for working near low voltage electric installations, EN 50528 applies.