User Manual
SAFETY 
 Safety handbook        page - 26 -   
PNSPO
Prevention of defeat using hand and elbow of the same arm : 
- Separation of the control actuating devices by a distance equal to or 
 more than 550mm 
- Separation of the control actuating devices by the provision of one or more shields or 
an elevated area designed in such a way that the control actuating devices cannot be 
touched at the same time with both ends of measuring equipment consisting of a 
300mm rigid bar not exceeding 5mm diameter and a 250mm cord attached to it. The 
bar that represents the forearm and the cord the hand and it shall be applied in all 
possible operating positions. 
- Separation of the control actuating devices by shields that are designed to limit 
access from the operating side and also at the rear in such a way that the control 
actuating device cannot be operated from the operating side with the tip of a test cone 
representing the elbow. The dimensions of this test cone shall be in accordance with 
figure A7 of EN 574, 1996. 
- Control actuating devices with different types and/or directions of operation. 
For this configuration usage 
of cord , bar and test 
cone for collar 
Prevention of defeat using the forearm(s) or elbow(s)
-  Shields designed in such a way that the control actuating devices cannot be 
operated by the forearms and/or the elbows. 
For the configuration 
use the test cone 
Distance ≥ 550mm
Bar 300mm 
Cord 250mm 










