I.S. EN 50020:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INTRINSIC SAFETY "I"
Hardcopy , PDF
English
01-01-2002
02-03-2007
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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
Contains the specific requirements for the construction and testing of intrinsic safety electrical apparatus, type of protection "i", intended for use in potentially explosive atmospheres.
| DevelopmentNote |
To be read in conjunction with I.S. EN 50014: 1993 (02/2002)
|
| DocumentType |
Standard
|
| Pages |
94
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| BS EN 50020:2002 | Identical |
| NBN EN 50020 : 2003 | Identical |
| DIN EN 50020 : 2003 | Identical |
| NF EN 50020 : 2004 | Identical |
| NEN EN 50020 : 2002 | Identical |
| EN 50020:2002 | Identical |
| UNE-EN 50020:2003 | Identical |
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