CLC/TC 31
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 58030 | prEN 50XXX | Application of parameters from IEC 60664 and 60664A to be used to determine the quality of electrical insulation inside pressurized enclosures for Group I | Izstrādē |
| 43496 | prEN 45544-1 | Direct reading electrical apparatus used for the direct detection and concentration measurement of polluting gases and vapours - Part 1: General requirements and test methods | Izstrādē |
| 53731 | EN 50054:1991/prA2 | Electrical apparatus for the detection and measurement of combustible gases - General requirements and test methods | Izstrādē |
| 51666 | prEN 50XXX | Preliminary Enquiry about Zone 0 and intrinsic safety | Izstrādē |
| 50752 | EN 50021:1999/AA | Electrical apparatus for potentially explosive atmospheres - Type of protection "n" | Izstrādē |
| 50807 | prEN 50058 | Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % (v/v) gas | Izstrādē |
| 58268 | EN ISO/IEC 80079-34:201X/AA:201X | Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture | Izstrādē |
| 43347 | prEN 45544-2 | Direct reading electrical apparatus used for the direct detection and concentration measurement of polluting gases and vapours - Part 2: Performance requirements for apparatus used for measuring concentrations in the regions of limit values | Izstrādē |
| 52102 | prEN 50XXX | Revision of DIN VDE 0118-1, DIN VDE 0118-2, DIN VDE 0118-3: Erection of electrical installations in mines - Part 1: General requirements, - Part 2: Supplementary specifications for power installations, - Part 3: Supplementary specifications for telecommunication installations | Izstrādē |
| 52093 | EN 50020:1994/prAX | Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i' | Izstrādē |
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