BS EN 61587-4-2012 pdf download.Mechanical structures for electronic equipment Tests for IEC 60917 and IEC 60297 series Part 4: Combination of performance levels for modular cabinets.
This part of IEC 61587 provides the combinations of different degrees of protection for cabinet systems regarding IP code, climate levels, static and dynamics load tests, electromagnetic shielding and seismic requirements, Optimal economical solution can be ensured by ordering a cabinet with specific properties for which this design guide provides the easy selection of defined performance levels.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 61587-1, Mechanical structures for electronic equipment — Tests for lEG 60917 and IEC 60297 series — Part 1: Environmental requirements, test set-up and safety aspects for cabinets, racks, subracks and chassis under indoor conditions
IEC 61587-2, Mechanical structures for electronic equipment — Tests for IEC 60917 and IEC 60297 — Part 2: Seismic tests for cabinets and racks
IEC 61587-3, Mechanical structures for electronic equipment — Tests for IEC 60917 and IEC 60297 — Part 3: Electromagnetic shielding performance tests for cabinets, racks and subracks
3 SelectIon of performance levels
The environmental and test requirements for cabinets are defined in existing standards.
According to IEC 60529 enclosure systems can be classified by their IP code. The IP code is a 2 digit number where the first digit (0 — 6) indicates the level of protection that the enclosure provides against access to hazardous parts and the entry of solid foreign objects. The second digit (0-8) indicates the protection against harmful entry of water.
As in IEC 61587-1 a cabinet system can meet the standards of climatic levels Cl. C2, C3, the levels of industrial atmosphere A1(E), A2(E), A3(E), levels of static loading SL5, SL6, SL7, levels of dynamic loading DL4, DL5. DL6 and levels of impact loading Ki, K2 and K3.
A cabinet system can also meet the seismic requirements as defined in IEC 61587-2 and/or the EMC (Electro Magnetic Compatibility) performance tests as defined in IEC 61587-3 and shown in Table 1.BS EN 61587-4-2012 pdf download.