Post-Installation Inspection

Title Page

Site conducted
Conducted on
Prepared by

System Information

Size of system (kW)
Location of System
PV array mounting type
- Tilt Mount
- Flush Mount
Has the system been installed as per the SLD
Has the system been installed as per the Sturctural Certification

Inverter Bank

Labels

Where a system has PV array switch disconnectors the following warning is installed on the inverter WARNING: PV ARRAY D.C. ISOLATORS DO NOT DE-ENERGIZE THE PV ARRAY AND ARRAY CABLING - AS/NZS 5033:2014 5.5.3
For systems over 600 V a warning sign indicating the following shall be installed on the access door or gate: WARNING: HAZARDOUS VOLTAGE AUTHORIZED ACCESS ONLY - AS/NZS 5033:2014 5.5.4
Is the Shut Down procedure is correct and is permanently fixed at the inverter and/or switchboard
Any PV Array Junction Boxes are labelled "WARNING: HAZARDOUS DC VOLTAGE"
All PV cabling or conduit work clearly labelled as "SOLAR DC" every 2 mtrs, supported and secured
The DC Isolators are signed "PV Array DC Isolator" or similar, (wording must align as specified on the Shut Down Procedure)
All labels installed at the switchboard are indelible and sufficiently durable for the intended purpose - AS/NZS 5033:2014 5.2

PV Array Checklist

Panel Manufacturer
Panel Model
Panel Type
Number of Panels
Panel DC Connector Manufacturer
Panel DC Connector Model
PV array short circuit current
PV array azumith / tilt
Number of Maximum Power Point Trackers (MPPT)
String fuse current / voltage rating
Is there sufficient space for panel ventilation?
Are the clamping zones to the manufacturer's guidlines?
Are there any visible panel defects - moisture, discolouration, delamination, fractures?
Are the panel cables secured to the panel frame with approved panel clips?
Is the array structure visibly attached and secured to the roof?
Are there any shading risks - inter-panel shading, surrounding obstacles etc.?
Were the solar modules listed on the CEC's list of approved products at the time of the system's installation?
Are the modules in the same string installed in the same orientation +/- 5 degrees?
Are all panel strings within 5% of maximum Voc?
Are all DC connectors of the same type/model from the same manufacturer?
Is there sufficient string protection?
Are all earthing connections properly designed and installed?
Is there sufficient protection and coating of earthing connections?
Are all metal array components of similar metal?
Does the designed array fit on the available roof area? (e.g. solar panels are not positioned over roof edges or gutters)
Is the array’s maximum voltage VOC array max (at minimum temperature) less than 600 VDC for Residential installation or less than 1000 VDC for Commercial Installation?
Does the design of the system fall within the inverter’s MPPT window at the minimum temperature?
Is the array's maximum voltage V array max (at minimum temperature) less than the maximum VDC of the inverter?
Does the design of the system fall within the inverter’s MPPT window at the maximum temperature?

PV Array DC Isolators Checklist

Have rooftop DC isolators been installed?
DC isolator manufacturer
DC isolator model
Number of DC isolators
Are there any recalled DC isolators?
Is the load breaking DC isolator located adjacent to the array(s) correctly rated for the required DC voltage and current?
Is the isolator(s) [or Circuit Breaker] installed adjacent to the array(s)?
Are there any loose connections in the LV DC cables?
DC Isolator Dry and Sealed?
Has the insulation been exposed any more than necessary to terminate the cable AS/NZS 3000:2018 3.7.2.2
Have cables been correctly terminated to prevent the spreading or escape of individual strands - AS/NZS 3000:2018 3.7.2.5
Has double insulation been maintained between all live conductor(s) and all earthed or exposed conductive part(s)?
Are installed DC isolator(s) on the Electrical Regulator Authorities Council (ERAC) list?
Are the DC isolator(s) at the array readily available?
Where the modules are installed on a tilt frame, the isolator shall be protected from direct exposure to sun and rain by using either of the following methods: • Installation of a shroud as per 7.10.2; or • Installation beneath the modules CEC Guidelines Issue 13 April 2019 7.10
Where the panels are installed parallel to the roof, an adequate shroud shall be installed over the isolator. PV DC Isolator(s) shall not be installed under a solar module when the panels are parallel to the roof. CEC Guidelines Issue 13 April 2019 7.10
External mounting points used or if internal points used shall be the designated points designed by the manufacturer with cover caps installed - CEC Guidelines Issue 13 April 2019 8.3.4 to 8.3.7
Are isolators fixed on any portion of the panel - CEC Guidelines Issue 13 April 2019 7.10
IP rating of the isolator has been maintained - AS/NZS 5033:2014 4.4.4.6 (b) 'Shall'
Voltage at DC Isolator (VDC)
An array DC Circuit Breaker is present?
DC Circuit Breakers are non-polarized and properly designed

Inverter Checklist

Inverter Manufacturer
Inverter Model
Inverter Type
Number of Inverters
Maximum inverter DC input power
Maximum inverter DC current per MPPT
Maximum inverter DC input short circuit current per MPPT
Is the inverter operational?
Is ther inverter running at optimal performance?
Inverters are mounted in suitable location
Inverter(s) installed as per manufactures specification. 'Shall' CEC Guidelines Issue 13 April 2019 10.1.1
Are the inverter(s) listed on the CEC's list of approved products at the time of the system's installation?
Earth fault alarm present or monitoring for system has been configured - AS/NZS 5033:2014 3.4.3
Are the DC cables connecting to the inverter mechanically secured in such a manner that they cannot be inadvertently unplugged from the inverter?
Perform the Anti-Islanding test & certify for distribution safety regulatory requirement
Are there any Loose connections in the LV cables?
Do all cable entries maintain the manufacture's IP rating?
Is the inverter securely and safely installed with all fixing / locking screws present?
Confirm the earthing of Inverter and external conductive parts.
Volt Var Setting
Inverter phase connection

Inverter AC Isolator Checklist

Has an inverter AC isolator been installed
Are all AC isolators ( if more than 3m from switchboard) mounted adjacent to the inverter?
Are all AC isolators correctly wired, rated and lockable?
Are all AC Circuit Breakers mounted in the switchboard?
Are all AC Circuit Breakers correctly rated and lockable?
Is the Azc cable voltage rise from inverter terminal to point of supply less than 2%?

Inverter DC Isolator Checklist

Is the Inverter DC isolator in-built or seperately installed?
Inverter DC isolator manufaturer
Inverter DC isolator model
Number of Inverter DC isolators
Are installed DC isolator(s) on the Electrical Regulator Authorities Council (ERAC) list?
Are there any recalled inverter isolators present?
Are all DC isolators securable and rated?
Does the DC enclosure(s) at the inverter have the required IP rating (minimum IP56NW if outdoors) and has been installed to maintain that rating??
Glands and seals installed where required to maintain IP Rating?
Are there any loose connections in LV DC cables?
Has double insulation been maintained between all live conductor(s) and all earthed or exposed conductive part(s)?
Is the DC isolator (or DC Circuit Breaker) lockable in the off position?
Voltage at DC Isolator (VDC)
Are all inverter DC Circuit Breakers non-polarized and properly designed?

AC Connection & Switchboard Checklist

Connecting switchboard name & number
Solar CB rating
Is the switchboard location compliant & safe?
Is the arrangement associated with the solar components compliant & safe?
Are the solar AC cables and CBs rated to the inverter output?

Rooftop Checklist

Is there safe access to the roof?
Solar racking / mounting components manufacuter
Are the roof penetrations and/or the roof top components used in the wiring system, including secondary shields, isolator shrouds, collared flashings, multi- holed glands, conduits and conduit glands, suitably installed, sealed and waterproof?

Photovoltaic Distribution Board (PVDB) Checklist

Is there a PVDB installed?
Are all circuit breakers correctly rated?
Is the cable correctly sized?
Is the PVDB rated for the installation and location?
Are all penetrations into the switchboard suitably sealed according to AS/NZ 3000:2018 2.10.7?

Framing & Mounting Structure Checklist

Do the PV mounting structure and attachments comply with AS/NZS 1170.2?
Does the mounting system meet manufactureres exclusion zones requirements as per AS/NZ 1170.2:2021
Are any galvanically dissimilar metals in contact with each other?
All earthing cables for the frame earth connections are of adequate size to comply with Standards.
Do the PV array frame and module earthing connections and methods comply with Australian Standards (AS/NZS3000:2018 and AS/NZS5033:2014)
Earth fault alarm type?
Does the PV array structure allow sufficient clearance to facilitate selfcleaning of the roof, to prevent any build- up of leaves and other debris?
Are all cables/wiring in the installation securely fixed in place to minimise any movement of the cable?
Is there evidence of mechanical damage to LV cables?
Are all array cables: (a) temperature rated for the application, (b) UV resistant if exposed to the environment, and (c) are flexible (multi-stranded) to allow for thermal/wind movement of arrays/modules?
Do all LV string cables comply with the requirements of: (a) PV1-F, (b) UL 4703, or (c) VDE-AR-E 2283-4?

Conduit & Cabling Checklist

Conduits installed so that they are adequately supported - 'Shall' CEC Guidelines issue 13 April 2019 9.1.6
Positive terminal PV array to inverter specifications
Are all roof penetrations for the cabling system sealed?
Is the array wiring and wiring to the inverter protected from mechanical damage? (this requires a visual inspection of all cables related to the system and therefore might require checking on the roof)
Is the DC cable voltage drop less than 3%?
Are all cables/wiring in the installation securely fixed in place to minimise any movement of the cable? eg. use of steel cable ties
Is the array wiring and wiring to inverter rated for the appropriate voltage and current?
Is there evidence of mechanical damage to LV cables?
Are all array cables: (a) temperature rated for the application, (b) UV resistant if exposed to the environment, and (c) are flexible (multi-stranded) to allow for thermal/wind movement of arrays/modules?
Has the double insulation been maintained between the positive and negative conductors/terminations within all enclosures?
Is there visible segregation between AC&DC and LV&ELV located in the same enclosure?
Does the installation minimise the spread of any fire which may occur within the system? (Any new circuit breaker holder, junction box or similar must not allow any fire to escape the enclosure onto any combustible material e.g. circuit breaker box)
Are there any visibly exposed LV live parts?
Are there any signs of heat in electrical equipment and cable terminations?
Are all cables secured and fastened correctly, and are secured away from any sharp edges?
Has earthing insulation resistance testing been completed?
Is there sufficient protection and resrtiction access?
Are all DC cable(s) installed within the ceiling space, wall cavity or floor enclosed in heavy duty conduit or equivalent?

Labels Checklist

Is there a permanently fixed, clearly visible label on the outside of the meter box or main switchboard. Ensure the appropriate PV label has been used as per AS 5033:2021 5.4.
Is there a fixed label on the meter box or main switchboard.
Is there a permanently fixed label adjacent to the main switch for the grid supply.
Is there a permanently fixed label adjacent to the main isolators for the normal supply to the DB.
Is there a permanently fixed label adjacent to the main switch for the IES.
For inverters not adjacent to the switchboard, is there a permanently fixed label in a prominent location on the switchboard.
When the IES is directly connected to the switchboard, is there a warning label permanently fixed on the switchboard.
When the IES is connected to a DB, is there a warning label permanently fixed on the MSB and all related DBs.
Is there a permanently fixed sign to the AC isolator adjacent to the inverter.
Is there a permanently fixed sign/s to the DC isolator/s at the inverter.
Is the shutdown procedure permanently fixed on the inverter.
When multiple devices are used that are not ganged together, is there a permanently fixed label on all DC isolators.
Is there a warning label on PV DC cable junction boxes, including adjacent to PV modules.
When the wiring system is not directly behind and adjacent to the PV modules, is the PV cabling or conduit work clearly labelled every 2 metres.
Where disconnection points have been utilised and cables run within ceiling spaces / accessible floor spaces, is there a fixed label at the access point.
Is there a permanently fixed label on load break disconnector/s. (Additional labels marked with identification name or number consistent with shutdown procedure are also required)
Is there a label attached to the PV module or structure 300mm from the disconnection point.
Is there a label attached to both the positive and negative cables within 100mm of their disconnection points.