BS EN 50020:2002
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Electrical apparatus for potentially explosive atmospheres. Intrinsic safety \'i\'
Hardcopy , PDF
English
31-07-2006
01-10-2009
1. Scope
2. Normative references
3. Definitions
4. Grouping and classification of intrinsically safe
apparatus and associated apparatus
5. Intrinsically safe levels of protection of electrical
apparatus
6. Apparatus construction
7. Components on which intrinsic safety depends
8. Infallible components, infallible assemblies of
components and infallible connections
9. Diode safety barriers
10. Type verifications and type tests
11. Routine verifications and tests
12. Marking
13. Documentation
Annex A (normative) Assessment of intrinsically safe circuits
Annex B (normative) Spark test apparatus for intrinsically safe
circuits
Annex C (informative) Measurement of creepage distances,
clearances and separation distances through casting
compound and through solid insulation
Annex D (normative) Encapsulation
Annex E (normative) Certification requirements for torches
Specifies the construction and testing of intrinsically safe apparatus, meant for use in potentially explosive atmospheres and for associated apparatus, which is meant for connection to intrinsically safe circuits which enter such atmospheres. Coverage includes: documentation, marking, and diode safety barriers. Also gives detailed definitions and annexes.
| Committee |
EXL/31/2
|
| DevelopmentNote |
Supersedes BS 5501-1(1977) and 89/25202 DC. (07/2002) Supersedes BS 1259(1958) (08/2006)
|
| DocumentType |
Standard
|
| Pages |
96
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| DIN EN 50020 : 2003 | Identical |
| NF EN 50020 : 2004 | Identical |
| EN 50020:2002 | Identical |
| I.S. EN 50020:2002 | Identical |
| NEN EN 50020 : 2002 | Identical |
| NBN EN 50020 : 2003 | Identical |
| UNE-EN 50020:2003 | Identical |
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