NORSTAT Safety Relays - Handbuch (Seite 9)

application guide safety relays from riese electronic page 9
C Standards-overview
1 Standards-overview
The following information applies only to the European
machinery directive. The main requirement of the
European machinery directive is, that there is no risk for
persons (and, where appropriate, pets and goods) health
and safety if the machine is properly installed, maintained
and used according to the regulations. Machines have to
be conform with their machine type corresponding basic-,
safety- and health requirement, according to the 1st
appendix of the European machinery directive. The term
“used according to the regulations” is defined in DIN EN
ISO 12100 part 1. The complete 1st appendix of the
European machinery directive is attached to DIN EN ISO
12100 as appendix A.
The 1st appendix of the European machinery directive
contains the requirements for a machine safety concept.
For the not abolished dangers have to be made the
necessary protection measures.
Only for the not abolished residual risks, a fallback on specialized training and protective equipment are
allowed.
1.1 Standards-types
The European safety standards are hierarchically structured.
There are the standards type A, B1, B2 and C.
Type A - Standards (basic safety standards)
They include basic ideas, design principles and general aspects for devices and systems.
Examples:
DIN EN ISO 12100 1/2
Safety of machines – basic ideas, general design principles
EN 1050
Safety of machines – risk evaluation principles
no longer valid, replaced by EN ISO 14121-1
EN ISO 14121-1
Safety of machines – part 1: Principles, replacement for EN 1050
EN/IEC 61508
Functional safety of safety-related electrical, electronical and
programmable electronical systems.
Type B - Standards (safety group standards)
Type B standards refer to safety aspects or safety-critical setups. They can be used for a whole series of
machines, devices and systems.
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