1. Hoist Motor2. Cross Travel Motor3. Brake (only for hoist motor)4. Control Panel5. Limit Switches6. Pendant Push ButtonThe essential principle of Flame-Proof enclosure is that hazardous atmosphere is not excluded from the electrical apparatus and enclosure is sufficiently strong to withstand and internal explosion and at the same time capable of cooling the flame passing from inside to outside to such an extent that ignition outside the enclosure is not possible.All the above mentioned flame-proof components have been tested at Central Mining and Research station (CMRS), Dhanbad. These are approved for Group I, IIA and IIB gases as per IS-2148. All other features like gearbox, rope drum, guide ring, wire rope and hook are similar to our standard electric wire rope hoist
Many plants work with materials whose air/gas mixtures are liable to explode with proximity to equipment prone to sparking. |