Thermography Report. Inspection Site: Lucky Mining Co. Rocky Rd Smithville, NSW. Requested By: John Seemore. Date of Inspection:

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1 Thermography Report Inspection Site: Lucky Mining Co. Rocky Rd Smithville, NSW Requested By: John Seemore Date of Inspection: Reference Number: Thermographer: John Crawford Thermal Imaging Camera: Make: FLIR Model: ThermaCAM E45 Serial:

2 INSPECTION GENERAL INFORMATION This thermographic inspection is designed to assess the performance of all switchgear on site and to highlight any areas which require attention. Recommendations listed within this report are given only within our area of expertise and we recommend you discuss the implementation of remedial works with your maintenance service provider. Scope Infrared Thermal Scanning of all electrical switchgear and associated conductors to detect evidence of equipment operating near or above rated temperatures. Load readings are also taken of prospective faults to assist in the accurate diagnosis of the prospective fault. A detailed log of inspected assets is provided which includes a Pass or Fail status. Those items failing the inspection are reported on through a thermal and digital image, a priority rating & possible recommended action. An initial scan of all items is carried out with the Infrared Radiometer set to alarm at temperatures above 40 o C. Items displaying temperatures above 40 o C are further investigated based on application, equipment type, load measurement & spot temperature readings. Overview of Fault Priority Ratings 0 No abnormality No Action 1 Alert To be monitored rescan when recommended 2 Severe Repair at scheduled shutdown, not longer than 30 days 3 Critical Repair immediately or as soon as possible 4 Immediate Notification Shutdown & repair immediately 2

3 Location: Motor Control Room Page: 3 Section: Relay Compartment Priority: 2 Equipment: Mains indicator lamp, white phase Item: C Ar C Ar1: Max 59.2 C Pilot lamp assembly should be replaced. Priority Level 2 Repair at next scheduled shut down, no later than 1 month. 3

1 C The fault current limiting fuses are operating at excessive temeratures considering the operating load of 100 amps per

4 Location: Motor Control Room Page: 4 Section: MDB-1 Section 1 Priority: 2 Equipment: 1amp Pan A & Pan B Fault Limiting Fuses Item: 10 Ar2 Ar C Ar3 Ar C Ar1: Max 76.4 C Ar2: Max 76.8 C Ar3: Max 72.5 C Ar4: Max 71.1 C The fault current limiting fuses are operating at excessive temeratures considering the operating load of 100 amps per phase. The rating of the fuses are 1amps. Priority level 2, the fuses & fuse carriers should be replaced at the next scheduled shutdown. 4

5 Location: Motor Control Room Page: 5 Section: Cable Zone Priority: 1 Equipment: CR3 sub-main circuit breaker terminations Item: 13 Sp2 Sp C C Sp C Sp C All 3 phases are equally loaded at 540amps per phase, phase temperatures should be equal. Priority Level 1, monitor condition & re-scan in 3 months. 5

Location: Workshop Distribution Board Page: 6 Section: D.B.W.S. Priority: 2 Equipment: Precoat plant circuit breaker Item: 15 Ar1 68.

5 Circuit breaker rating is 25amps, sub circuit cable size is 2.5mm, load current is 21amp per phase.

6 Location: Workshop Distribution Board Page: 6 Section: D.B.W.S. Priority: 2 Equipment: Precoat plant circuit breaker Item: 15 Ar C Li1 Sp C Sp C Li1: Max 63.5 C Ar1: Max 64.6 C C Cursor Min Max Li Circuit breaker rating is 25amps, sub circuit cable size is 2.5mm, load current is 21amp per phase. The cable size is under rated for the existing load, either the load & circuit breaker size needs to be reduced or the cable size increased. Priority Level 2, remedial work should be carried out next scheduled shutdown. 6

Location: Main Switch Board Page: 7 Section: Priority: 2 Equipment: Main Switch MDB-1 Item: 20 76.4 C Sp4 Sp2 70 Sp3 Li1 Sp5 45.2 71.3 C Sp2 65.9 C Sp3 61.3 C Sp4 57.6 C Sp5 59.4 C Li1: Max 71.

10 deg C higher than the adjacent 2 phases, load per phase is 1180amps & balanced within 4%.

7 Location: Main Switch Board Page: 7 Section: Priority: 2 Equipment: Main Switch MDB-1 Item: C Sp4 Sp2 70 Sp3 Li1 Sp C Sp C Sp C Sp C Sp C Li1: Max 71.9 C C Cursor Min Max Li Blue phase bus bar on the circuit breaker load side is operating approx. 10 deg C higher than the adjacent 2 phases, load per phase is 1180amps & balanced within 4%. The temperature profile indicates the temperature rise origin to be either at the circuit breaker/bus bar termination point or internal to the circuit breaker. It is recommended the circuit breaker be removed, inspected & all termination points dressed. The breaker should then be recommissioned & monitored Priority Level 2, remedial work should be carried out next scheduled shutdown. 7

8 LOG OF INSPECTED ASSETS LOCATION EQUIPMENT ITEM RESULT NUMBER Motor Control Room PLC Cubicle PLC-1 1 P Motor Control Room Cable termination compartment 2 P Motor Control Room Relay Compartment 3 F Motor Control Room MCC-1 4 P Motor Control Room Contactor Compartment No.2 5 P Motor Control Room VSI Crusher CR3 6 P Motor Control Room Crusher Starter CR2 7 P Motor Control Room Crusher Starter CR1 8 P Motor Control Room Circuit Breaker Compartment 9 P Motor Control Room MDB-1 Section 1 10 F Motor Control Room MDB-1 Section 2 11 P Motor Control Room MDB-1 Section 3 12 P Motor Control Room MDB-1 cable zone 13 F Motor Control Room Distribution Board DBX-1 14 P Workshop Workshop Distribution Board DBWS 15 F Main Office Office Distribution Board 16 P Main Switch Board Mains Connection Section 17 P Main Switch Board C.T. Section 18 P Main Switch Board MCR Sub-main connection section 19 P Main Switch Board Main switch MDB-1 20 F Main Switch Board Local D.B. mainswitch 21 P Main Switch Board Local D.B. section 22 P F Failed inspection P Passed Inspection NIO Equipment Not In Operation at time of inspection 8

9 ACTION TAKEN: BY: DATE: 9

2006 Thermographic Inspection. Terrific Towers 1001 Sparks St Sydney. Vol. 9

2006 Thermographic Inspection. Terrific Towers 1001 Sparks St Sydney. Vol. 9 8/139 Woolooware Rd Burraneer NSW 2230 T. (02) 9544 3588 F. (02) 9544 3688 E. info@thermalimagingservices.com.au W. www.thermalimagingservices.com.au Accredited Thermographers 2006 Thermographic Inspection