Explosion-proof electric motors YBX3-280S-2P-37KW-380V-IP55-B5

To protect the fire-resistant surface of the engine from chips, scratches and rust during installation, dismantling and maintenance of the engine in case of failure of fire resistance! The fastening bolt connected to the fireproof body is a mandatory element; the fastener class must comply with the requirements of the drawing or technical description. When using removable screws or bolts to secure any part of a fireproof enclosure, the hole and threaded hole (or the bottom of it) must not penetrate the wall of the enclosure; the thickness of the metal around the hole must be at least 1/3 of the hole diameter and be more than 3 mm. The depth of screwing in the fastening bolt must be at least 1.5 times the diameter of the bolt; If the mounting bolt is fully screwed in and the spacer is not taken into account, a thread allowance must be left between the shank and the bottom of the threaded hole. Mounting bolts must be provided with measures to prevent loosening. If a spring spacer is used to prevent loosening, the tightening torque of the mounting bolt must meet specifications to ensure elasticity. Non-metallic parts of an explosion-proof enclosure must comply with the regulatory requirements for non-metallic parts set out in GB 3836.2 Explosive Atmospheres. Part 2: Explosion-proof enclosure "d" for protected equipment." The outer diameter of the incoming user cable must match the O-ring of the terminal box. The sealing ring at the entrance to the main terminal box allows the passage of five cables of different diameters.