Safety of machinery. Electro-sensitive protective equipment - General requirements and tests

BS EN 61496-1:2004+A1:2008 Safety of machinery. Electro-sensitive protective equipment. General requirements and tests

BS EN 61496-1 specifies general requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety related system. Special attention is directed to functional and design requirements that ensure an appropriate safety-related performance is achieved. An

ESPE may include optional safety-related functions, the requirements for which are given in Annex A.

The particular requirements for specific types of sensing function are given in other parts of this standard.

BS EN 61496-1 does not specify the dimensions or configuration of the detection zone and its disposition in relation to hazards in any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine.

BS EN 61496-1 may be relevant to applications other than those for the protection of persons, for example for the protection of machinery or products from mechanical damage. In those applications, different requirements can be necessary, for example when the materials that have to be recognized by the sensing function have different properties from those of persons.

BS EN 61496-1 does not deal with electromagnetic compatibility (EMC) emission requirements.

Contents of BS EN 61496-1:

INTRODUCTION

1 Scope

2 Normative references

3 Terms and definitions

4 Functional, design and environmental requirements

4.1 Functional requirements

4.2 Design requirements

4.3 Environmental requirements

5 Testing

5.1 General

5.2 Functional tests

5.3 Performance testing under fault conditions

5.4 Environmental tests

5.5 Validation of programmable or complex integrated circuits

6 Marking for identification and for safe use

6.1 General

6.2 ESPE supplied from a dedicated power supply

6.3 ESPE supplied from an internal electrical power source

6.4 Adjustment

6.5 Enclosures

6.6 Control devices

6.7 Terminal markings

6.8 Marking durability

7 Accompanying documents

Annex A (normative) Optional functions of the ESPE

Annex B (normative) Catalogue of single faults affecting the electrical equipment of the ESPE, to be applied as specified in 5.3

Annex C (informative) deleted

Annex ZA (normative) Normative References to international publications with their corresponding European publications

Bibliography

Index