Permit to Work Major Hazard Standard - MIRMgate

More documents

Recommendations

Info

WMC EHS Management System Major Hazard Standard Permit to Work APPENDIX E1 E1 SAFE WORKING IN CONFINED SPACE PROCEDURE PURPOSE AND SCOPE This Procedure covers requirements for: • Identifying and registering all defined confined spaces at each WMC Resources site • Ensuring that all work conducted in or on confined spaces complies with the specific controls determined by the WMC Permit to Work Standard. (Note – Certain types of work performed “on” a confined space has the potential to affect a person working within the space and shall be considered when conducting the risk assessment) • Conducting regular audits of work within confined spaces • Designing, manufacturing, constructing, maintaining and inspecting plant, equipment and structures to ensure where practicable, the need for entry into confined spaces is eliminated This procedure should be read as a component of the Permit to Work Standard. DETAILS 1. Responsibilities The General Manager or equivalent is responsible for ensuring: • All confined spaces are identified (sign posted where practicable) and placed on a register • In preparation for any potential future work within these spaces, a hazard identification and risk assessment of the inherent hazards of each confined space itself has been competently conducted and the results also recorded on the register • A specific risk assessment (THA as a minimum) is conducted for work to be completed within the space that identifies all hazards and determines the control measures prior to the commencement of the work • All confined space entries are conducted under a specific Work Permit and a Confined Space Entry Certificate • All low risk confined space inspections are conducted under a specific confined space entry Work Authorisation process • There is a rescue plan that is capable of execution for each entry into a confined space • Where practicable the need for entry into confined spaces is eliminated. 2. Definition A Confined Space is: • An enclosed or partially enclosed space that is at atmospheric pressure during occupancy and is not intended or designed primarily as a place of work, and: (a) is liable at any time to: (i) have an atmosphere which contains potentially harmful levels of contaminant; (ii) have an oxygen deficiency or excess; or (iii) cause engulfment; and WMC-EHS-MHS-007 DocsOpen Ref : 155520 Issued: 23/12/03 Page 28 of 59
WMC EHS Management System Major Hazard Standard Permit to Work (b) could have a restricted means for entry and exit. Note 1: where an enclosed or partially enclosed space is to be at atmospheric pressure during occupancy and it is not intended or designed primarily as a place of work and the content of oxygen in atmosphere is liable at any time to be below or above 20.9% by volume under normal atmospheric pressure, the space must be considered to be a confined space. Note 2: when a person’s head, i.e. breathing zone, or upper body is within the boundary of the confined space they are considered to have entered the space. Inserting an arm for atmospheric testing purposes is not considered an entry to a confined space. 3. Confined Space Entry 3.1 General Allowance has been made within the Permit to Work Standard for a two-tiered Work Permit process for inspection and for full entry into confined spaces. The two-tiered work permits are: • Confined Space Work Authorisation This level is for a low risk inspection only into a atmospherically safe environment and requires the use of a Work Authorisation Tag • Confined Space Entry permit This level is for all work within all confined spaces and requires the use of a Work Permit and Confined space Entry Certificate 3.2 Confined Space Inspection (Low Risk) A confined space inspection only can be managed on site providing that all of the following criteria determined by the risk assessment are complied with: • Head or head and shoulders entry (for inspection only) • The atmosphere is safe and is expected to remain safe at all times during inspection • Any isolation required enabling inspection shall be done by a qualified Level 1 Isolator • There is a purpose designed Inspection/access way (e.g. a purpose designed inspection hatch into a transfer chute) • There is no expected risk of contamination occurring • Appropriate lighting is available • Whilst conducting the inspection there is no expected chance of a person being overcome by extremes of temperature • There is no requirement to have rescue equipment at the job site • The inspection cannot change any of the above conditions 3.3 Confined Space Entry (High Risk) All entry into confined spaces shall comply with the full requirements of the Permit to Work Standard with the issue of a Work Permit and Confined Space Entry Certificate (see Appendix E2). 4. Evaluation, Identification and Registration Of Confined Spaces A confined space inherent hazard evaluation (refer to Appendix E4) shall be conducted on any potential confined space in preparation for any future work within that space being required. WMC-EHS-MHS-007 DocsOpen Ref : 155520 Issued: 23/12/03 Page 29 of 59
Page 1 and 2: WMC Environment, Health & Safety Ma
Page 3 and 4: EHS MS WMC EHS Management System Ma
Page 5 and 6: WMC EHS Management System Major Haz
Page 27: WMC EHS Management System Major Haz
Page 59: WMC EHS Management System Major Haz

Permit to Work Major Hazard Standard - MIRMgate

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?