(Project Name & Location)

Transcription

1 Accredited Thermographers 2014 Thermographic Inspection (Project Name & Location) Date: Issue: Ref:

2 REPORT DETAILS Issued By: Thermographer: Thermal Imaging Services 8/139 Woolooware Rd Burraneer NSW 2230 T. (02) F. (02) E. XXXXXXXXXXXXXX Thermographer Accreditation No: AINDT XXXXX IR Camera: Manufacturer :- Serial No.:- Calibration Date :- Client: XXXXXXXXXXXXXX Client Representative: XXXXXXXXXXXXXX Location: XXXXXXXXXXXXXX - 2 -

3 REPORT SUMMARY An Infrared Thermal Scan of Listed Electrical Switchboards was conducted XXXXXX. The complex was drawing load from the Local Supply Authority at time of inspection. Internal switchgear components and associated wiring were inspected for abnormal operating temperatures affected by load or equipment condition. Wiring and terminations were inspected for high resistance connections and insulation condition. Load conditions were as experienced during periods of normal demand. All inspected online switchboard components and associated wiring were thermally operating XXXXXXXXXXXXXXXXXX. Internal wiring insulation and terminations appear to be XXXXXXXXXXXXXXX. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Malcolm Rhind Level 2 AINDT Certification No Date: / / - 3 -

4 INSPECTION DETAILS The information listed below is to assist in the interpretation and discharge of appropriate remedial action of reported faults or potential areas of concern. Recommendations listed within this report are within the area of our expertise and recommend you discuss the implementation of service/repair with your maintenance service provider. Scope Infrared Thermal scan of electrical switchgear and associated conductors to detect the evidence of equipment operating near or above rated thermal temperatures. Where possible load readings are taken to ensure proper diagnosis of prospective faults. Australian and IEC Standards along with Copper & Brass Association publication No.22 are used as benchmarks for assessing permissible temperature limits. Australian Standards state that in all switchboards the temperature rises (on the outer panels) shall be referred to ambient. Referring to accessible boards i.e. touchable, the rise is not to exceed 30 C, nonaccessible boards 40 C. (extract from AS Low voltage switchgear and controlgear assemblies Table 3 Temperature limits). Where higher temperatures are applied to components, the insulation maximum should not be exceeded Maximum temperatures (These are not recommended operating temperatures) Bare Copper & Aluminium - 75 C MIMS cables up to - 90 C PVC insulation V-75 cables - 75 C Silver/Nickel Coated cables C Actual Tin Coated cables - 90 C High temperature cables C Electrical Equipment - 50 C (to maintain maximum current and fault ratings) Connections as above + 15 C Method All accessible covers are removed from the switchboards with internal PVC shrouds removed when installed in a manner that facilitates safe removal. Switchboards assigned a segregation rating greater than two (2), in accordance with AS3439, or where fitted with internal busbar shrouds can be arranged to be scanned with the arrangement of at least two shutdowns to remove and reinstall covers. Internal metal covers will not be removed whilst the switchboard is on line. An infrared radiometer with its range initially set at 20 C to 40 C is passed over all switchgear, bus system and cable connections. Areas displaying abnormal temperature variations are further investigated by means of equipment application analysis, load measurement and pinpoint temperature readings. Faults and areas of concern have infrared thermal and digital images saved for report and condition monitoring tasks. Thermal detection and analysis via infrared radiation is limited by the amount of current passing through the system. Equipment should be loaded to enable it to generate an appropriate amount of heat to detect an abnormality. The amount of current required to detect or analyse an abnormal thermal condition varies from system to system and is dependent on its current carrying capacity, ambient temperature and inherent design

5 Results A priority rating schedule along with suggested remedial action plans are included for prioritising rectification works. Where faults of a life or property threatening situation are detected, notification will be immediately made to the client s representative. Ultimately it is the owner or plant operator s responsibility to implement or gain further advice of the recommended repairs contained within this report. Each thermal image is uniquely identified to correspond with a label placed upon the affected equipment for ready identification by maintenance personnel. Priority Rating Temp Rise ΔT⁰C Recommended Action 1 >40⁰C Corrective Action required immediately 2 >20⁰C - 40⁰C Corrective Action required as soon as possible 3 >10⁰C - 20⁰C Corrective Action required at scheduled maintenance 4 1⁰C - 10⁰C Condition monitor. Possible fault developing. - - No Fault. Re-scan within 12 months Licensed electricians must perform all repairs and service

6 TABLE OF CONTENTS Section Equipment Priority Page Mechanical Services Switchboard Located Level 4 Plant Room Compressor 3 Motor Starter 2 7 House Services Panel Located Level 3 Riser Fan Isolating Switch & DB-2 Isolating Switch 2 8 DB-8A Located Level 4 Riser DB-3 Located Warehouse Ramp DB-4.4 Located Level 1 Riser Main Switch 2 9 Circuit Breaker A phase circuit breaker chassis 1 11 Summary of Inspection List of Reported Items 12 List of Inspected Assets 13 Certification Details

7 Inspected Equipment Mechanical Services Switchboard Located Level 4 Plant Room Operator: Malcolm Rhind Reference Image Equipment Compressor 3 Motor Starter Equipment Type ABB A-63 Additional Information Date 14/03/ :38 AM Working conditions: Located within a non ventilated environment Thermal Image Celsius Max IR Image Details Image No. Emissivity 0.95 Spot C Spot C Area 1 Max C Area 2 Max. <unknown> Background 36.0 C rmeh o 17.0 nket ix TVS :38:04 AM 24/03/2011 e : 0.95 Bg : 35.9 C Description of Fault Priority Rating 2 Recommendation High resistance A phase load side termination. Re-scan within 12 months. Previous Fault Description Date Image Vol. Code Page Remedial Action Taken Authorised - 7 -

8 Inspected Equipment House Services Panel Located Level 3 Riser Operator: Malcolm Rhind Reference Image Equipment Fan Isolating Switch & DB-2 Isolating Switch Equipment Type Quicklag Q355C & Q3100CN Additional Information Date 20/04/ :18 AM Working conditions: Located within a non ventilated environment Thermal Image Celsius Max IR Image Details Image No. Emissivity 0.95 Spot C Spot C Area 1 Max C Area 2 Max. <unknown> Background 22.0 C o rmeh 17.8 xi nket TVS-600 7:18:41 AM 20/04/2011 e : 0.95 Bg : 22.0 C Description of Fault Priority Rating 2 Recommendation High resistance terminations. Variation in line and load side temperatures Inspect contact surfaces and re-terminate. Ensure tunnel terminals are securely fitted to circuit breaker housings Previous Fault Description Date Image Vol. Code Page Remedial Action Taken - 8 -

9 Inspected Equipment DB-8A Located Level 4 Riser Operator: Malcolm Rhind Reference Image Equipment Equipment Type Main Switch Quicklag Q3100C Additional Information Loading A Phase 89 Amperes B Phase 32 Amperes C Phase 38 Amperes Date 2/05/2011 Working conditions: 08:41 AM Located within a ventilated environment Thermal Image Celsius Max IR Image Details Image No. Emissivity 0.95 Spot C Spot C Area 1 Max C Area 2 Max. <unknown> Background 25.0 C o nket ix rmeh TVS-600 8:41:04 AM 2/05/2011 e : 0.95 Bg : 25.1 C Description of Fault Priority Rating 2 Recommendation High resistance A phase connection. Unbalanced load Ensure runnel terminal is securely fitted to circuit breaker housing. Re-tension termination. Re-distribute load over adjacent phases. Previous Fault Description Date Image Vol. Code Page Remedial Action Taken Authorised - 9 -

10 Inspected Equipment DB-3 Located Warehouse Ramp Operator: Malcolm Rhind Reference Image Equipment Circuit Breaker Equipment Type Hager Additional Information Neutral Conductor Date 23/04/ :30 AM Working conditions: Located within a ventilated environment Thermal Image Celsius Max IR Image Details Image No. Emissivity 0.95 Spot C Spot C Area 1 Max C Area 2 Max. <unknown> Background 25.0 C rmeh o 26.1 nket ix TVS-600 9:30:38 AM 23/04/2010 e : 0.95 Bg : 24.9 C Description of Fault Priority Rating 1 Recommendation High resistance termination. Make good cable end and re-terminate Previous Fault Description Date Image Vol. Code Page Remedial Action Taken Authorised

11 Inspected Equipment DB-4.4 Located Level 1 Riser Operator: Malcolm Rhind Reference Image Equipment A phase circuit breaker chassis Equipment Type Merlin Gerin Additional Information Date 24/03/ :26 AM Working conditions: Located within a non ventilated environment. Thermal Image Celsius IR Image Details Image No. Emissivity 0.95 Spot C Spot C Area 1 Max C Area 2 Max. <unknown> > Background 25.0 C o nket ix rmeh TVS-600 8:26:28 AM 24/03/2010 e : 0.95 Bg : 24.9 C Description of Fault Priority Rating 1 Recommendation High resistance A phase connection to circuit breaker chassis Replace circuit breaker chassis and make good connection hardware and conductor. Previous Fault Description Date Image Vol. Code Page Remedial Action Taken

12 Authorised

13 List of Reported Items Switchboard Equipment Fault Priority/Recommendation Mechanical Services Switchboard Located Level 4 Plant Room Compressor 3 Motor Starter High resistance A phase load side termination was detected 2 Termination re-tensioned during inspection House Services Panel Located Level 3 Riser Fan Isolating Switch & DB-2 Isolating Switch High resistance terminations. Variation in line and load side temperatures 2 Inspect contact surfaces and re-terminate. Ensure tunnel terminals are securely fitted to circuit breaker housings DB-8A Located Level 4 Riser Main Switch High resistance A phase connection. Unbalanced load 2 Ensure runnel terminal is securely fitted to circuit breaker housing. Retension termination. Re-distribute load over adjacent phases. DB-3 Located Warehouse Ramp Circuit Breaker High resistance termination. 1 Make good cable end and re-terminate DB-4.4 Located Level 1 Riser A phase circuit breaker chassis High resistance A phase connection to circuit breaker chassis 1 Replace circuit breaker chassis and make good connection hardware and conductor

14 List of Inspected Assets Location Switchboard Fault Comment Main Switch Room Main Switchboard Admin. Block Data Recovery Room PFC Unit 1 PFC Unit 2 Unmarked DB UPS DB By Pass Switch Located Level 1 Riser DB-4.4 See Report Page 11 Under Art Department (Building Void) DB-7 DB-8 Compressor Load Centre Under Administration Block DB-5 Air Conditioning Sub Board Warehouse Ramp DB-3 See Report Page 10 DB-3A Warehouse Mezzanine MCC Warehouse (Adj. Loading Dock) Warehouse Customer Service Warehouse (Rear Wall) DB-3C DB-3D DB-6 DB-3CB Workshop Sub Board - No load Located Level 4 Riser DB-8A See Report Page 9 Level 4 Plant Room House Services Panel Located Level 3 Riser Mechanical Services Switchboard Fan Isolating Switch & DB-2 Isolating Switch See Report Page 7 See Report Page 8 Data Room DB UPS By Pass Switch Book Fare Warehouse DB-1 Level 1 Admin. New Media Level 1 Comms. Room New Media DB-2 DB-3 DB-3 (Special Purpose) UPS -1 Sub Board UPS -2 Sub Board

15 ACCREDITATION DETAILS