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NBN EN 50274 : 2002
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The latest, up-to-date edition.
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LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PROTECTION AGAINST ELECTRIC SHOCK - PROTECTION AGAINST UNINTENTIONAL DIRECT CONTACT WITH HAZARDOUS LIVE PARTS
12-01-2013
Introduction
1. Scope
2. Normative references
3. Definitions
4. Requirements
4.1 General requirements
4.2 Positioning of operating devices
4.3 Measures
4.4 Space of protection
4.5 Base area
4.6 Access area
4.7 Equipment installed on movable parts
5. Tests
5.1 Operating devices and access area
5.2 Finger protected and back of the hand
protected locations
Annex A (informative) Figures for explanation
Figure 1 - Permissible area for locating of operating
devices
Figure 2 - Maximum and minimum height of the base area
depending on the service position
Figure 3 - Operating space for pushbutton actuation
Figure 4 - Operating space for actuation by rotary means
Figure 5 - Example for operating space during activation
by pushbutton
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