The internal arc tests in cubicles and electric panels are carried out by the High Power Laboratory (AP2), located in the Adrianópolis Unit.
They can be used in switching and control assemblies in metal casing, usually referred to as cubicle or electric panel. The test aims at providing safety to the people surrounding the equipment, under normal operation conditions, if an internal arc occurs in its interior. Eventually, they can be used for other equipment, such as transformers, in the case of some specific study.
These tests are suitable for high voltage equipment. To this end, AP2 has the infrastructure to provide voltages and currents and meet the specificities of the clients and/or the test standards, within the limitations of the laboratory, for example: calibrated measurement systems; switches and circuit-breakers for current establishment and interruption; current limiters; protection systems; suitable current and voltage sources.
The main clients of these tests are: electricity utilities and equipment manufacturers.
• ABNT NBR IEC 62271-200
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