8th March Electrical MRE Grosveor

08.03.2016 Electrical + comments

POINTS TO NOTE

Electrical Reporting Structure             

 “Not robust”.

No shift sign off? Against the Act and Regulations?

Also, another Contractor Management Failure.

CRO

Not as familiar as stated about methane detector in bypass. 30-minute alarm for detector in bypass

Review and improve the process of equipment being signed in and out of the mine by both the person taking it underground and by the CRO.

 Uncertified Portable Electrical Equipment system and paperwork not filled out or signed off correctly

Recommendation (Little or No Legal Standing).

Pit Bottom substation (1st Installed).

Problem since Commissioning about possible not isolating of 110 v control in panel. Temporary laminated information sign. Again something planned for Grosvenor (1 month).

Carbon copy high voltage documentation suggested only

AS/NZS 2290.3 Electrical equipment for coal mines- Maintenance and overhaul/Part 3 Maintenance of gas detecting and monitoring equipment

 Opportunity for Improvement or Non-compliance?

Electrician work orders.

 Inspector only asks does not check system or documents by entry. Is this acceptable post Grasstree Paul McGuire fatality.

Trailing Cables

Using 25mm trailing cables instead of industry standard 35mm. EEM unable to say whether electrical protection system for fault load have been set correctly

Variable Voltage Variable Frequency (VVVF) shuttle cars and the controls that mines are installing to reduce the electrical hazard for their use.

VVVF electrical checks and power training for Electricians needed.

ADMINISTRATION

 

Electrical Incidents on Grosvenor.

There is no Incident Investigation reports for 3 of the 7 incidents

 Series of HPI’s for Paquin electrical plugs. Safety Alert by Department

 

1 Cable Management in Development Panels          NIA

That the mine considers the management practice of ERZ Controllers signing-off on the panels cable management.

 

Number                          Recommendation        Due Date

2                                    UPEE Management                     NIA

The mine is to review and improve the process of equipment being signed in and out of the underground by both the person taking it and by the CRO.

 

Two recommendations (No or Little Legal Standing).

Cable Management in Development Panels

Uncertified Portable Electrical Equipment review failed process.

No action dates because no legal standing.

Was it ever followed up