... to China National Standards Explosion Proof Motor, Flameproof Motor, Electric Motor, Asynchronous MotorYB2 series Explosion proof electric motor are designed and ... for Explosive Gas Atmospheres- Explosion proof Enclosure d and standards IEC79-1, BS4683 and EN50018.ExdI- safe for ... should be less than 90%. Explosion Proof Motor, Flameproof Motor, Electric Motor, Asynchronous Motor,(with IMB5 Flange)