IEC 61000-5-7:2001

FOREWORD
INTRODUCTION
Clause
1 Scope
2 Normative references
3 General
4 Definitions
5 Shielding performance designations
6 General test approach
7 Testing requirements
  7.1 Climatic conditions
  7.2 Test samples
  7.3 Analysis requirements
  7.4 Test frequency selection
  7.5 Test matrix definition
  7.6 Test equipment requirements
  7.7 Safety requirements
  7.8 Test plan requirements
  7.9 Test performance
  7.10 Test conclusions
  7.11 Test documentation
8 Classification
Annex A (informative) Some issues for selection of
        enclosure electromagnetic protection requirements
Annex B (informative) Summary of responsibilities of
        relevant end-product technical committees
Annex C (informative) Other test methods - TEM cells
        and striplines
Annex D (informative) Antennas
Bibliography

Describes performance requirements, test methods and classification procedures for degrees of protection provided by empty enclosures against electromagnetic disturbances for frequencies between 10 kHz and 40 GHz. The shielding protection is measured for the purpose of demonstrating that the enclosure provides adequate shielding of electromagnetic energy to support acceptable performance of the complete assembled units when tested to applicable IEC standards. The purpose of this standard is to provide a repeatable means for evaluating the electromagnetic shielding performance of empty mechanical enclosures, including cabinets and subracks, and to specify a marking code to allow a manufacturer to select an enclosure with a known capability for attenuating electromagnetic fields. The requirements for immunity to various types of electromagnetic disturbances, including lightning and high-altitude electro-magnetic pulse (HEMP) will need to be considered by manufacturers when determining the need for application of this standard for specific equipment and applications, and for the specific enclosure shielding requirements which are necessary as a function of frequency.