This checklist is based on one from the Australian Clean Energy Council.- General
- LV wiring has been installed by a qualified electrician.
- Safe isolation is provided between ELV and LV circuits.
- Emergency services sketch in main LV switchboard.
- Protection has been provided for moving or high temperature parts.
- Over-current protection and isolation are rated for a.c. or d.c. at appropriate voltage and current levels.
- Multiple LV sources - shrouded plugs and extra signage.
- SHUTDOWN Procedure is prominently displayed in equipment area.
- All equipment is mounted close to, but outside battery enclosure.
- Access to equipment is restricted to authorised persons.
- Adequate ventilation is provided for all electrical equipment.
- All cables satisfy both voltage drop and current carrying capacity.
- All exposed cabling is provided with mechanical protection.
- Lightning protection has been provided.
- Any battery charger is permanently connected with over-current protection at the battery end of the charger cabling.
- Equipment is labelled, convenient, accessible and visible.
- There are no exposed live parts on any installed equipment.
- Solar panel (PV) arrays
- Orientation
- Blocking diodes are connected in series with each string.
- Bypass diodes are connected in parallel with modules / sub-modules.
- The PV mounting structure ( frame ) is wind rated for the site.
- The PV array is securely mounted.
- Roof penetrations are suitably sealed and waterproof.
- Wiring is protected from UV and mechanical damage.
- Modules have sufficient ventilation space to minimise temperature rise.
- Any timber used is suitable for external use and is properly sealed.
- No dissimilar metals are in contact with array frames or supports.
- PV wiring losses are less than 5% at the max. array output current.
- PV wiring is protected by appropriate circuit breakers or fuses.
- Metering is installed to monitor the current supplied from the array.
- Any freestanding PV structure is wind rated for the site.
- Wind generators
- Tower or mast is wind rated for the site.
- Mechanical protection is fitted to guy wires.
- Installation and maintenance documentation has been supplied.
- Footings have been installed by a ‘competent’ person.
- Installation has been supervised by a licenced rigger.
- Installation has been performed to the manufacturers instructions.
- Metering is installed to monitor the current supplied from the wind turbine.
- Wiring is protected from UV and mechanical damage.
- A ‘securing device’ is available for maintenance operations.
- The turbine is above any turbulence caused by nearby obstacles.
- Micro hydro generators
- Installation and maintenance documentation has been supplied.
- Installation has been performed to the manufacturers instructions.
- Metering is installed to monitor the current supplied from micro-Hydo.
- Wiring is protected from UV and mechanical damage.
- The turbine is protected from flooding and flood-borne debris.
- All piping is anchored at regular intervals and at elbows.
- Battery Bank - ELV nominal voltages not above 115V d.c.
- Main Battery over-current protection is installed in all un-earthed conductors.
- For multiple string battery banks - each string is separately protected.
- A means to readily isolate the battery bank is installed.
- The batteries are installed in a dedicated room, enclosure or restricted access area designed to prevent unauthorised entry.
- Adequate structural support for the batteries is provided.
- Any battery stands used are ‘fit for purpose.’
- Battery enclosure is designed to prevent the formation of ‘gas pockets.’
- Battery enclosure is vermin-proof.
- “ Warning : Spark Hazard … ” sign is mounted above batteries or located on enclosure.
- Battery voltage and short circuit fault current warning notice is fitted.
- Battery warning signs " DANGER - Risk of Battery Explosion … " and " Electrolyte Burns … " are clearly visible & permanently fixed.
- There are no arc producing devices in areas where hydrogen concentrations can become significant.
- Appropriately sized ventilation inlets and outlets are provided.
- An airflow alarm is provided where forced ventilation is used.
- Electrolyte containment is provided.
- Battery cells are NOT in contact with the floor of the enclosure / room.
- Battery interconnects and terminals are protected from accidental shorts.
- All crimp lugs have been fitted using an appropriate tool.
- Stainless steel bolts have been used and tightened to specification.
- Battery cables are protected from mechanical damage and effectively clamped and supported.
- Battery cable minimum bending radius is not less than specification.
- Personal protection equipment is available for safe battery handling.
- A fresh water supply is available for eyewash and rinsing any acid spills.
- Metering is installed to monitor the battery voltage.
- Gensets
- Access is restricted to authorised persons.
- Adequate access is provided for safe and effective operation.
- Safe exit is provided from genset area.
- Adequate ventilation, noise control, inlet and exhaust conditioning.
- In damp or exposed situations, are suitably protected.
- In hazardous areas, comply with additional regulatory requirements.
- All components are protected from mechanical damage.
- All moving parts are enclosed to prevent inadvertent contact.
- All hot ( >120°C ) parts are protected to prevent inadvertent contact.
- Over-speed shutdown is fitted - for output > 15kW.
- All live parts are enclosed, inaccessible or protected from inadvertent contact.
- Output isolation and over-current protection is fitted.
- Supply Change-over facilities.
- One source of supply is interrupted before connecting the other.
- Operates in all active conductors.
- Is rated at the max. out of phase voltage.
- Manual change -over device has an intermediate OFF position.
- Change-over device/s are accessible to Authorised persons only.
- Change-over terminals are labelled to indicate supply source.
- Earthing.
- The following parts of the genset are electrically bonded.
- The engine frame.
- The generator frame.
- All exposed metal enclosing electrical equipment or wiring.
- The ‘earth’ terminal of all socket-outlets.
- The main frame terminal - marked FRAME.
- Where a genset supplies an earthed fixed installation, the connection to earth is not via a separate earth electrode.
- Portable gensets are restrained from movement during operation.
- Auto-start systems.
- Warning notice is fitted and visible on approach.
- Engine manual override and isolation devices.
- Flexible cables or cords are protected from mechanical damage.
- Metering is installed to monitor the runtime of the genset.
- Genset is easily accessible for all maintenance operations.
- Fuel storage complies with standards and local regulations.
- All flammable fuels must not NOT be stored in the vicinity of high temperature surfaces, sparks or hot particles or where fuel leakage can come in contact with hot surfaces.
- Test and commissioning
- All wiring has been tested for continuity and short circuits.
- Polarity has been checked before connection of the battery bank.
- PV Array operation has been checked.
- Wind and micro-Hydro generator operation has been checked.
- Genset operation has been checked.
- Regulator and battery charger operation has been checked.
- A functional test of the completed power system has been performed.
- System documentation
A system manual has been provided that includes- List of equipment supplied - including model and serial numbers.
- System performance estimate, including.
- daily energy consumption estimate.
- design d.c. and a.c. load energy.
- load management strategies.
- maximum and surge power demand.
- estimated RE input showing expected seasonal variation.
- estimated generator runtime.
- RE resource data used with adjustments for site conditions.
- System voltage and ratings of major components.
- Operating instructions - system and component.
- Shutdown Procedure for emergency and maintenance.
- Maintenance Procedure and timetable.
- Commissioning records and Inspection checklist.
- Warranty information.
- Original energy usage estimate which was used for system design.
- System connection diagram.
- Equipment manufacturers documentation and handbooks.
- A Battery record logbook has been provided.
- A Genset service logbook has been provided.
- Battery Banks - nominal battery voltage above 115V d.c.
- Charging source over-current and over-voltage is prevented.
- Over-voltage alarm is fitted.
- Batteries are installed in either a battery room, lockable cubicle or restricted access area
- Ventilation is provided to maintain hydrogen concentration below 2% - refer to AS 2676 ( or AS 4086 ) for ventilation guidelines.
- Cells are readily accessible for maintenance or removal.
- Unobstructed access to the battery is provided.
- Electrical equipment inside battery room has no exposed live parts.
- Minimum clearances are provided.
- Mechanical protection, insulation and identification is provided.
- Lighting, switches and GPO’s are correctly positioned.
- Insulated flexible cables are used to connect to the battery terminals.
- Main Battery over-current protection and isolation is installed in all un-earthed conductors.
- Battery voltage and short circuit fault current warning notice is fitted.
- For un-earthed batteries – earth-leakage alarm is provided.
- Isolation is provided to sectionalise the battery to ELV levels.
- Fire safety and warning signs.
- Battery Banks - guide for battery installation in buildings
- Cells of unequal capacity are not connected in parallel.
- Battery cabling can withstand prospective fault current for at least 1 sec.
- Battery cables are effectively clamped and supported.
- Battery cable minimum bending radius is not less than specification.
- Busbars are insulated and do not restrict access to cells.
- All switchgear is suitably rated.
- Battery connections are resistant to corrosion.
- The battery can be fully isolated.
- The location is free from vibration.
- The occurrence of extreme ambient temperatures is minimised.
- Battery room
- Notices prohibiting unauthorised access are posted.
- Battery rooms or restricted areas provide access for installation, maintenance and emergency services.
- Floor loadings are appropriate for the installed equipment.
- Floors are non-slip and acid-resistant.
- Containment is provided for electrolyte spillage.
- Battery enclosure
- Constructed of acid-resistant materials with adequate structural strength.
- Clearance of 25mm is provided between the battery and the enclosure.
- Battery stands
- Load-bearing members support at least 33% of the cell base area.
- Stand sections are rigidly joined.
- Deflection of load-bearing members is no more than 3mm.
- Base area of cells does not project outside the stand.
- The battery installation height does not exceed 2 metres.
- For tall cells - horizontal restraining bars are installed.
- The stand is manufactured from, or is coated with, acid-resistant material.
- Lighting is not installed directly over cells or exposed live parts.
- Inter-cell connector shrouds are in place.
- Suitable Personal Protection Equipment, such as eye protection, appropriate lifting devices and insulated hand tools has been used during installation.
- Safety signage
- Restricted Access signs are mounted at all entry points - open flame / no smoking / authorised personnel only / LV equipment.
- Caution signs are mounted in prominent positions - battery warning with voltage and short circuit current.
- Emergency Information are mounted prominently in a room or on an enclosure.
- Fire extinguishers suitable for use on acid or alkaline solutions and electrical fires have been provided adjacent to the room / enclosure.
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