NBN EN 62199 : 2005

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Ratings
   4.1 Rated voltages
   4.2 Insulation levels
   4.3 Rated currents
   4.4 Minimum nominal creepage distance
5 Operating conditions
   5.1 General
   5.2 Factors affecting the design, testing and application
6 General requirements
   6.1 List of variables
   6.2 Nameplate markings
7 Test requirements
   7.1 General requirements
   7.2 Test classification
8 Type tests
   8.1 Dry power-frequency voltage withstand test with
        partial discharge measurement
   8.2 Dry lightning impulse voltage withstand test (BIL)
   8.3 Dry or wet switching impulse voltage withstand
        test (SIL)
   8.4 Temperature rise test
   8.5 Cantilever load withstand test
   8.6 Tightness test on liquid-filled, compound-filled
        and liquid-insulated bushings
   8.7 Internal pressure test on gas-filled, gas-insulated
        and gas-impregnated bushings
   8.8 Verification of dimensions
9 Routine tests
   9.1 Measurement of dielectric dissipation factor
        (tan delta) and capacitances
   9.2 Dry lightning impulse voltage withstand test (BIL)
   9.3 Dry power-frequency voltage withstand test with
        partial discharge measurement
   9.4 DC applied voltage withstand test with partial
        discharge measurement
   9.5 Polarity reversal test with partial discharge
        measurement
   9.6 Test of tap insulation
   9.7 Internal pressure test on gas-filled, gas-insulated
        and gas-impregnated bushings
   9.8 Tightness test on liquid-filled, compound-filled
        and liquid-insulted bushings
   9.9 Tightness test on gas-filled, gas-insulated and
        gas-impregnated bushings
   9.10 Tightness test at the flange or other fixing device
   9.11 Visual inspection and dimensional check
10 Special tests
   10.1 Artificial pollution test
   10.2 Even wetting d.c. voltage test
   10.3 Uneven wetting d.c. voltage test
Bibliography
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications
Figure 1 - Polarity reversal test profile
Table 1 - Minimum values of cantilever withstand load

Applies to outdoor and indoor bushings of any voltage used on d.c. systems, of capacitance graded or gas insulated types for use as components of oil-filled converter transformers and smoothing reactors, as well as air-to-air d.c. bushings.