Information
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Document No.
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Audit Title
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Client / Site
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Conducted on
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Prepared by
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Location
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Personnel
Site Details
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Date of Inspection
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Service Technician
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Site Name
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Project #
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System Size
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Site Contact
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Nearest Major Intersection
Rooftop Maintenance
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Est, Time
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1. Check modules for soiling. Status:
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Comments / Action Items
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Add media
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2. Check array(s) for broken, loose or missing modules. Inspect racking for damaged or loose fasteners. Status:<br>
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Comments / Action Items
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3. Note any obvious areas of concern on rooftop - i.e. ponding, holes in rooftop, plugged drains. <br>Status:
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Comments / Action Items
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4. Check for build-up of garbage or debris around panels. Status:
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Comments / Action Items
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5. Look for any new roof obstructions that could shade array. Status :
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Comments / Action Items
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Add media
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6. Check for corrosion or signs of rusting on racking. Status:
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Comments / Action Items
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Add media
Electrical Inspection
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ALL TESTING / TORQUNG TO BE DONE WEARING ARC FLASH PPE
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Est, Time
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1. Visually inspect DC wiring throughout array. Check condition of plastic wire ties and insulation materials between wires and metal edges in array. Status:<br>
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Comments / Action Items
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2. IR photograph all DC connections in combiners to note possible hot spots. Status:
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Comments / Action Items
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3. IR photograph all DC connections in Re-combiner / DC disconnects. Status :
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Comments / Action Items
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Add media
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4. Check AC/DC disconnects and combiners for: corrosion, heat distortion, moisture entry, insect or rodent issues and connection integrity. – Photograph areas of concern. Status :
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Comments / Action Items
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5. IR photograph all AC connections. Status:
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Comments / Action Items
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6. Inspect wire runways, piping/conduit and note any damage or need for replacement, sealing etc. Status:
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Comments / Action Items
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7. Test combiners - record open circuit voltages in chart provided at bottom of form. Status:<br>
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Comments / Action Items
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8. Inspect weather station and sensors. Status:
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Comments / Action Items
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Add media
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9. Confirm torque on any suspect AC field connections – Re-torque as required. Torque any factory connections as required. Status:
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Comments / Action Items
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10. Confirm Torque on any suspect DC field connections – Re-torque as required.<br>Torque any factory connection as required. Status:<br>
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Comments / Action Items
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Add media
Inverter Specific Maintenance
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Est, Time
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11. IR photograph all AC/DC connections. Status:
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Comments / Action Items
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Add media
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12. Check torque on any suspect AC/DC field connections – Re-torque if required. Status:<br>
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Comments / Action Items
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Add media
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13. Inspect Inverter for external damage. Status:
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Comments / Action Items
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Add media
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14. Check cable entry fittings. Visually inspect for moisture intrusions. Status:
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Comments / Action Items
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15. Record any Faults, check display for phase amperages, record any serious imbalances (+/- 6 A in relation to each other). Note any irregular noises. Status:<br>
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Comments / Action Items
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Add media
End of Inspection Checklist
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1. All fuses in combiners closed?
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Comments / Action Items
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2. All combiners closed and shut properly?
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Comments / Action Items
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3. All combiners ON?
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Comments / Action Items
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4. All re-combiner breakers / DC disconnects ON?
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Comments / Action Items
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5. All re-combiner doors closed / DC disconnect doors properly screwed closed?
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Comments / Action Items
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6. All AC disconnects doors properly screwed closed?
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Comments / Action Items
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7. All AC disconnects ON?
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Comments / Action Items
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8. Inverter Doors closed and sealed properly?
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Comments / Action Items
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9. Inverter AC disconnect ON?
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Comments / Action Items
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10. Inverter DC Disconnect ON?
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Comments / Action Items
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Add media
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11. Inverter enabled?
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Comments / Action Items
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Add media
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12. Inverter producing?
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Comments / Action Items
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Add media
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13. Any inverter Error codes showing?
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Comments / Action Items
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Add media
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14. Communication with monitoring re-established?
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Comments / Action Items
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15. System functioning?
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Comments / Action Items
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Signature
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Date
Safety Concerns
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List any safety concerns, specialty PPE or tools required
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Safety Concerns:
Follow Up
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Additional Maintenance Required or Recommended
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Comments
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Warranty Items
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Action Items to be Addressed (Cover ambient sensor wih 1/2" flex)
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Other
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Signature
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Date
Brief Description of Tasks based on Item #
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Visual/mechanical inspection items.
1. Take photo of module soiling. Photograph and document any areas of concern. (example - LOTS of soiling in some parts vs. others)
2. Look for loose modules, broken racking, missing clamps, missing feet, modules not seated properly in clamps, etc. Photograph and document any signs of damage or concern
3. Look for any apparent areas of concern in reference to the rooftop - ex ponding, holes in roof, penetration, plugged drains. We are not roofers but photograph and document anything that is apparent.
4. Check for build-up of garbage or debris around panels.
5. Look for any new roof obstructions (vent stacks HVAC equipment etc.) that could cause shading to the modules.
6. Look for any apparent rusting on racking. Note any areas of concern.
Electrical inspection items.
1. Look down EACH row for any wires that could be touching the rooftop. No PV wiring is allowed to touch the rooftop. Check for broken ty-raps, broken wires, exposed copper on PV cabling, animal damage, animal nesting, insect nesting, etc. Photograph and document any areas of concern.
2. IR photograph combiner box connections. IR photographs of all field connections and factory connections required. Combiners should be under load when taking IR photos.
3. IR photograph all DC re-combiner / DC disconnect connections that can be scanned safely. IR photographs of all field connections and factory connections are required. DC re-combiner and DC disconnects must be under load when taking IR photos.
4. Visually inspect each combiner for corrosion, heat distortion, moisture entry, insect or rodent issues connection and wiring integrity. Photograph and document any areas of concern.
5. IR photograph all AC Disconnects. Scans of all field connections and factory connections required. AC disconnects should be under load when taking IR photos.
6. Visually inspect cable tray, PVC and rigid piping. Photograph and document any areas of serious distortion or concern. Photograph and document any damage.
7. Check open circuit voltage on combiners looking for any discrepancies. Ex. ( Low voltage, high voltage, bad modules, No voltage ) Document all findings.
8. Visually inspect weather station for any damage / lose sensors. Typical arrangements of sensors are: Ambient air sensor, pyranometer, and panel temp sensor. Check each for any damage. Panel temp typically should be securely fastened to underside of panel closest to weather station. Photograph and document any damage or repairs needed.
9.Check torque on any suspect connections revealed by either visual or IR scans ->Check torque chart available in AC disconnects to set torque setting on torque wrench. Set torque wrench and check torque on all field connections. Re-torque any factory connections that were suspect during IR scan.
10. Check torque on any suspect connections revealed by either visual or IR scans ->Check torque chart available in DC disconnects to set torque setting on torque wrench. Set torque wrench and check torque on all field connections. Re-torque any factory connections that were suspect during IR scan.
11. In inverter, specifically IR photograph all field connections. IR photos of all field connections required. IR scan all connections in AC and DC compartments to verify that factory connections of are terminated correctly. If any hot spots are detected IR photograph any areas of concern. Inverter should be running and under load when IR scanning.
12. Check torque on any suspect AC/DC field connections to inverter. Re-torque as required. Re-torque any suspect factory connections
13. Walk around inverter looking for any obvious signs of damage (ex. Rusting, penetration, etc).
14. Check conduit entry fittings. Look for any signs of damage to sealing rings. Look inside inverter for any signs of moisture entry. Photograph and document any areas of concern.
15. Record any inverter displayed fault codes.
Fill out end of inspections checklist
Sequential Process of inspection:
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Sequential Process of inspection:
ALL TESTING / TORQUING TO BE DONE WEARING ARC FLASH PPE
1. Read inspection sheets and brief description of all items.
2. Inform monitoring company of PM check.
3. Look at inverter display, record any visible fault codes.
4. Move to rooftop.
5. Begin rooftop array inspection.
Rooftop array inspection:
ALL ITEMS BELOW TO BE DONE AT SAME TIME. DOCUMENT AND PHOTOGRAPH AREAS OF CONCERN.
a. Take photo of module soiling.
b. Look for broken racking, broken modules, and incorrectly fastened modules, loose feet -> any areas of concern.
c. Look for any rooftop damage, plugged drains, ponding.
d. Check for build-up of garbage or debris around panels. Clean any debris requiring small amounts of time to do so.
e. Check for areas of rusting / corrosion / distortion on framework / panels / solar equipment
f. General inspection of PVC piping / rigid piping / cable tray for any signs of damage.
g. Look under EACH row of panels for wires touching rooftop. Repair any small amounts of wiring touching rooftop. If large amounts of wiring are touching rooftop re-scheduling to complete task is necessary.
h. Inspect weather station sensor attachments and exposed wiring for damage. Repair if possible. Or photograph and document if rework is needed.
6. Shut off, open, then turn back on combiner.
7. IR Photograph all combiner connections.
8. Shut off combiner disconnect and close combiner door. Turn on combiner.
9. Repeat steps 9 through 11 for each combiner
10. IR photograph AC Disconnects / DC Disconnects / Re-combiner all under load – Do not turn any off.
11. Open inverter, Turn inverter back on with doors open. Wait for start-up + 5 minutes for connection to heat up. IR photograph Inverter, AC and DC connections under load. Close doors.
12. Check and record all open circuit voltages on each combiner using normal Ideal or Fluke Multimeter.
13. Verify all AC disconnects / DC disconnects / Re-combiner / Inverter / monitoring equipment are clean and that all conduit entrances are sealed. Check for moisture entry into equipment.
14. Verify all combiners / Monitoring equipment are clean and that all conduit entrances are sealed. Check for moisture entry into equipment.
15. Turn on all combiners ->re-combiners / DC disconnects ->AC disconnects ->AC to inverter ->DC to inverter ->Re-energize system
16. Contact monitoring company to confirm data acquisition.
17. Fill out End of Inspection Checklist
18. CONFIRM SYSTEM IS OPERATIONAL AND COMMUNICATING BEFORE LEAVING
CB# /ST # Voltage (V)
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Include Voltage Readings and Comments where applicable
