Outline the procedures and arrangements to be put into place before a permit to work is issued for entry into a confined space. (10)
Procedures and arrangements before a permit to work is issued for entry into a confined space (10 marks)
Risk assessment – Identify hazards (oxygen deficiency, toxic/flammable gases, restricted access) and establish control measures.
Permit to work preparation – A responsible officer prepares the permit, specifying location, nature of work, personnel involved, and time validity.
Atmosphere testing – Use calibrated instruments to check oxygen content, flammable gases, and toxic vapours before entry.
Ventilation – Thoroughly ventilate the space (forced or natural) to ensure a safe atmosphere is maintained.
Isolation of systems – Isolate pipelines, machinery, electrical systems, or vents connected to the space (blanking, locking, tagging as required).
Safety equipment ready – Provide appropriate PPE, including harnesses, lifelines, breathing apparatus if required.
Stand-by personnel – A trained attendant must be stationed outside the confined space at all times.
Rescue and communication arrangements – Ensure suitable rescue equipment is available and that reliable communication is established between entrant(s) and standby.
Emergency arrangements – Ensure crew are briefed on emergency procedures, including first aid and resuscitation.
Authorisation and signatures – The responsible officer and master/authorised person sign the permit once all checks are complete, and the permit is prominently displayed at the site.
