EN 953+A1:2009 General requirements for the
design and manufacture of fixed and mobile protections.
5.2.4. In order to minimise their removal, protections shall be designed and manufactured to assure an adequate process visibility
5.10. Where it’s necessary to see the operation of the machine through the protection, materials with adequate features shall be selected. The open area and the colour should allow visibility.
EN 12100-1 Basic concepts, general design principles.
EN ISO 13857 Safety distances to prevent the contact of dangerous areas with upper and lower limbs.
4.2. Top accessibility.
4.3. Accessibility over guards.
4.4. Accessibility around guards.
4.5. Accessibility through openings.
Appendix A: limitation of free motion under guards.
Appendix A: limitation of free motion under guards.
EN 349 Minimum distances to avoid squashing of body parts.
EN ISO 10218 Robots for industrial environments. Safety requirements.
EN 1088 Interlocking devices designed for guards. Design and selection concepts.
D.Lgs 81/2008 Implementation of EEC directives about workers’ protection against risks due to chemical, physical and biological agents.
DIRECTIVE 2006/42/CE Directive About Machines.
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EN ISO 13857, 4.2:
Top Accessibility |
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If there is a low risk from the hazard zone then the height of the hazard
zone shall be 2500 mm or more.
If there is a high risk from the hazard zone, then the height of the hazard zone shall be 2700 mm or more. |
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EN ISO 13857, 4.3:
Accessibility over guards - High risk |
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EN ISO 13857:
Distances to impede free access by lower limbs |
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Height of the guard
from the ground h |
Minimum distance s |
1 |
2 |
3 |
h = 200 |
= 340 |
= 665 |
= 290 |
200 < h = 400 |
= 550 |
= 765 |
= 615 |
400 < h = 600 |
= 580 |
= 950 |
= 800 |
600 < h = 800 |
= 950 |
= 950 |
= 900 |
800 < h = 1000 |
= 1125 |
= 1195 |
= 1015 |
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| The pictures 1, 2 and 3 report the distances s for particular cases where the access of the lower limbs of a person in erect position is prevented without supplementary measures. If the height h up to the protection ranges between two values, the distance indicated for the higher h value should be adopted. |
Height of the dangerous area a |
Height of the protection structure b |
1000 |
1200 |
1400 |
1600 |
1800 |
2000 |
2200 |
2400 |
2500 |
2700 |
Horizontal distance of the dangerous area c |
2700 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2600 |
900 |
800 |
700 |
600 |
600 |
500 |
400 |
300 |
100 |
- |
2400 |
1100 |
1000 |
900 |
800 |
700 |
600 |
400 |
300 |
100 |
- |
2200 |
1300 |
1200 |
1000 |
900 |
800 |
600 |
400 |
300 |
- |
- |
2000 |
1400 |
1300 |
1100 |
900 |
800 |
600 |
400 |
- |
- |
- |
1800 |
1500 |
1400 |
1100 |
900 |
800 |
600 |
- |
- |
- |
- |
1600 |
1500 |
1400 |
1100 |
900 |
800 |
500 |
- |
- |
- |
- |
1400 |
1500 |
1400 |
1100 |
900 |
800 |
- |
- |
- |
- |
- |
1200 |
1500 |
1400 |
1100 |
900 |
700 |
- |
- |
- |
- |
- |
1000 |
1500 |
1400 |
1000 |
800 |
- |
- |
- |
- |
- |
- |
800 |
1500 |
1300 |
900 |
600 |
- |
- |
- |
- |
- |
- |
600 |
1400 |
1300 |
800 |
- |
- |
- |
- |
- |
- |
- |
400 |
1400 |
1200 |
400 |
- |
- |
- |
- |
- |
- |
- |
200 |
1200 |
900 |
- |
- |
- |
- |
- |
- |
- |
- |
0 |
1100 |
500 |
- |
- |
- |
- |
- |
- |
- |
- |
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