NEN EN 50216-7 : 2002
Current
The latest, up-to-date edition.
POWER TRANSFORMER AND REACTOR FITTINGS - PART 7: ELECTRIC PUMPS FOR TRANSFORMER OIL
01-12-2013
1 Scope
2 Normative references
3 Definitions
4 Design
4.1 General
4.2 Casing/enclosure
4.3 Terminal box
4.4 Hydraulic performance
4.5 Electrical performance
4.6 Noise
4.7 Labelling
5 Materials
6 Preferred sizes
7 Tests
7.1 Routine tests
7.2 Type tests
7.3 Special tests
8 Preparation for despatch
8.1 Painting
8.2 Preparation for transport and storage
Annex A (normative) Preferred sizes of end-suction pumps
Annex B (normative) Preferred sizes of in-line pumps
Annex C (informative) Information required with enquiry,
proposal and purchase order
Annex D (informative) Example of use of hydraulic
interchangeability tolerances
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