AS 61330-2005

1 General 1.1 Scope 1.2 Normative references 1.3 Definitions2 Service conditions 2.1 Normal service conditions 2.2 Special service conditions3 Requirements for components4 Ratings 4.1 Rated voltages 4.2 Rated insulation levels 4.3 Rated frequency and number of phases 4.4 Rated normal currents and temperature rise 4.5 Rated short-time withstand currents 4.6 Rated peak withstand currents 4.7 Rated duration of short circuit 4.8 Rated supply voltage of operating devices and auxiliary circuits 4.9 Rated supply frequency of operating devices and auxiliary circuits 4.10 Rated maximum power of the prefabricated substation 4.11 Rated class of enclosure5 Design and construction 5.1 Earthing 5.2 Auxiliary equipment 5.3 Nameplate 5.4 Degree of protection and internal fault 5.5 Enclosure 5.6 Sound emission6 Type tests 6.1 Dielectric tests 6.2 Temperature-rise tests 6.3 Short-time and peak withstand current tests on earthing circuits 6.4 Functional tests 6.5 Verification of the degree of protection 6.6 Mechanical tests7 Routine tests 7.1 Voltage withstand tests on auxiliary circuits 7.2 Functional tests 7.3 Verification of correct wiring 7.4 Tests after assembly on site8 Guide to the selection of prefabricated substations for service9 Information to be given with enquiries, tenders and orders 9.1 Information with enquiries and orders 9.2 Information with tenders10 Rules for transport, erection, operation and maintenance 10.1 Conditions during transport, storage and erection 10.2 Operation 10.3 MaintenanceAnnex A (normative) - Method for testing the prefabricated substation under conditions of arcing due to an internal faultAnnex B (normative) - Test to verify the sound level of a prefabricated substationAnnex C (normative) - Mechanical impact testAnnex D (informative) - Rating of transformers in an enclosure

Specifies service conditions, rated characteristics, general structural requirements and test methods of prefabricated substations, which are cable connected, to be operated from inside or outside for alternating current of primary rated voltages above 1 kV and up to and including 52 kV, and for a transformer of maximum power 1600 KVA, for service frequencies up to and including 60 Hz for outdoor installations in locations with public accessibility.

First published as AS 61330-2005.