GRM FRCV Electrical Incident - Electrical Conductor and Arc Flash Management

• Document No.

• Audit Title

• Goonyella Riverside Mine

• Conducted on

  Date

• Prepared by

• Location/Equipment ID
  Address

• Personnel

• Risk Scope
  Electrocution as a result of contact with exposed Low Voltage conductors, High Voltage conductors and contact with live conductive components
  Arc flash as a result of uncontrolled release of electrical energy

• Control Objective
  Reduce employee exposure to electrocution through:
  1. Safe design of electrical installations and apparatus as per relevant Australian Standards
  2. Robust installations specifications as per BHP engineering specs and Australian standards
  3. Appropriate protection systems installed and functional
  3. Verify that employees authorised to conduct electrical work are trained, competent and familiarised with procedures, standards and safety/test equipment
  4. Electrical operating areas secure and access managed

Protection Scheme - Electrical Installation Integrity - Electrical installation designed, commissioned and inspected.

• Protection systems are designed, installed, maintained and functional in accordance with legislative requirements, Australian Standards and BMA Engineering Standards

• a) A protection study is conducted for all Electrical installations, ensuring settings meet site standards and AS

• Have you inspected all new Electrical installations and verified protection settings as per design/AS?

  Yes

  No

  N/A

• b) There is a process in place to ensure that BMA GRM regularly tests the accuracy, condition and functionality of all protection devices as per AS

PM02 Electrical Statutory Work Orders

• Have you located PM02 Electrical Statutory work orders scheduled for the week?

  Yes

  No

  N/A

• Have you verified the PM02 has been time confirmed?

  Yes

  No

  N/A

• Was the work performed by an authorised tester and a copy of the test results saved to the notification?<br>

  Yes

  No

  N/A

• Have any defects had a subsequent notification raised?

  Yes

  No

  N/A

Switchboard

• Have you inspected a switchboard for circuit breakers with a test button?

  Yes

  No

  N/A

• Perform functional test by pushing button. ***Caution - when conducting test - verify circuit by name of c/b and inform any effected persons of intent to trip power (if not labelled report to EEM)*** <br>What was the result?

  C/B Trips - system is compliant

  C/B Did not trip - System non compliant (report to EEM or Area Supervisor)

  C/B Did not have a test button - System non-compliant (report defect to EEM)

Electrical test equipment & PPE - is fit-for-purpose, in good condition and worn/used by electrical workers.

• Electrical Test Equipment & PPE is fit-for-purpose, in good condition and worn by electrical workers to prevent electrocution in accordance with SOP21 & Electrical Standard
  

• a) Fit-for-purpose electrical test equipment & PPE is specified, acquired, available, inspected prior to use and worn as per SOP21 & Electrical Standard

• b) Work management strategies are established for inspection, testing and maintenance of electrical test equipment & safety PPE.

• Obtain the test equipment register or PPE register and select a sample.

• Are work management PM02 strategies established and executed for inspection, testing and maintenance of electrical safety test equipment PPE?

  Yes

  No

  N/A

• c) Fit-for-purpose electrical test equipment & PPE is in use by employees

• Select a sample of electrical tasks:

• Are the required electrical safety test equipment & PPE in fit-for-purpose, good condition and in use by electrical workers. - e.g. Arc flash clothing, no metal jewellery, test meters are in use etc

  Yes

  No

  N/A

Safe Operating Practices

• Electrical switching is performed to a safe standard
  Electrical work is performed to a safe standard
  Work in the vicinity of Electrical installations is controlled

• a) A task based risk assessment is performed for all electrical switching activities and work on switchboards

• In field verification of work. Select a sample of electrical work or switching:

• Was the work performed in accordance with SOP21 & Electrical Standard?

  Yes

  No

  N/A

• b) Switching activities are executed to an authorised switching programme

• Inspect one electrical task:

• Are isolations in place as per Isolation and tagging SOP and SOP21?

  Yes

  No

  N/A

• c) Access to Electrical operating areas is controlled

• Perform in field check of substation access control:

• Select a sample of electrical operating areas:

• Are the areas locked and only accessible by authorised personnel?

  Yes

  No

  N/A

• Is there a key register in place?

  Yes

  No

  N/A

• Does a selected sample reconcile with the training matrix?

  Yes

  No

  N/A

A safe protection boundary and incident energy level, ARC Category is established for all electrical switchboard installations

• A. Hazard Assessment is carried out, controls are implemented and records kept.
  Each Electrical operating area has a Hazard Risk Category sticker affixed

• Take a sample of Electrical operating areas:

• Is an Arc Flash Hazard Assessment in place?

  Yes

  No

  N/A

• Are there controls in place?

  Yes

  No

  N/A

• Are stickers in place?

  Yes

  No

  N/A

• Have any intolerable risks been addressed (Cat X)?

  Yes

  No

  N/A

• Are assessments readily available?

  Yes

  No

  N/A

• B. Electrical PPE is fit-for-purpose and worn by electrical workers and in line with HRC rating

• Is electrical PPE provided and in serviceable condition?

  Yes

  No

  N/A

• Select a sample of Arc Flash PPE:

• Is Arc Flash PPE compliant with SOP21 and the Electrical Standard?

  Yes

  No

  N/A

• Is Electrical Arc flash clothing being used in the field?

  Yes

  No

  N/A

• C. Are remote Switching and Operation systems implemented?

  Yes

  No

  N/A

• Inspect one task in a high risk arc flash installation:

• Is remote switching being used (if installed)?

  Yes

  No

  N/A

Work in the vicinity of H.V Electrical installations is controlled i.e. power lines

• To ensure compliance with SOP30, interview a sample of employees and contractors via field observations (include non-electrical personnel and supervisors.

• Do employees understand the requirements for working on or near electrical equipment?

  Yes

  No

  N/A

• Have risk assessments been performed?

  Yes

  No

  N/A

• Do employees hold relevant permits for high risk work?

  Yes

  No

  N/A

• Inspect recent requests to work near power lines:

• Are controls in place?

  Yes

  No

  N/A

Access to High Voltage Conductors

• To ensure HV switching and electrical work is performed in accordance with SOP21 & Electrical Standard (specifically performing HV switching activities):

• Perform a record check and check a sample of switching programs, access permits and task based risk assessments for electrical work or switching activities:

• Where the checks compliant?

  Yes

  No

  N/A

• Conduct an in field assessment of HV switching:

• Was the assessment executed as per standards?

  Yes

  No

  N/A

Sign Off Information

• Additional Comments:

• Completed By: Signature:

  Sign

• Date and Time Completed:

  Date