(1)The gas compressors shed or house shall be located at a safe distance from heaters in accordance with the Oil Industry Safety Directorate Standard, that is, OISD-STD- 118 or its revised version and shall have roofing and open from sides to avoid accumulation of heavier vapour or gas on the floor of compressor house.(2)The compressor shed or house shall be located near the battery limits to facilitate ease in maintenance and operation.(3)The compressors in the compressor shed or house shall be fitted with-(a)pressure relief valves on inlet and all stages to prevent pressure build up above the predetermined set point;(b)high discharge temperature shut down mechanism and high cooling water temperature switch fitted on cooling water return line to shut the compressor in the event of a fault;(c)high inlet, inter stage and discharge pressures shut down mechanisms;(d)low lube oil pressure shut down mechanism;(e)low cooling water flow switch fitted to the cooling water return line to shut the compressor in the event of fault; and(f)a remote isolation switch, wherever applicable, for emergency shutdown with manual reset at control panel.(4)The safety devices under sub-regulation (3) shall be inter-coupled with automatically operated hooter or audio alarm for indication to the operator.(5)The manager of every mine shall install adequate number of hydrocarbon gas detectors in gas compressor shed or house inter-coupled with audio alarm system which triggers at twenty per cent of lower explosive limit.
