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• Dec 21, 2025 areva 33kv outdoor circuit breaker d short-circuit protection, anti-pumping mechanisms, and interlocks for safety. Standards and Certifications Areva 33kV outdoor circuit breakers are designed in compliance with international standards such as: IEC 62271-100 (High-voltage switchgear and controlgear) IEC 62271-102 (Altern BY Rolando Schmidt Sr.