AS NZS 4777.2:2020 pdf download.Grid connection of energy systems via inverters Part 2: Inverter requirements.
2.1 General
This Standard does not prevent the use of materials, methods of assembly, procedures, or additional functions and the like that are not specifically included in the requirements of this Standard, or are not mentioned in it, provided the minimum safety, functional and performance requirements specified herein are met.
2.2 Electrical safety
Inverters for use in inverter energy systems with photovoltaic (PV) arrays and/or batteries shall conform to IEC 62 109-1 and IEC 62 109-2, and the requirements within this Standard.
Throughout IEC 62 109-1 and IEC 62 109-2, the term “power conditioning equipment (PCE)” is used. For the purposes of this Standard, “PCE” shall be replaced with the term “inverter”.
Inverters for use in inverter energy systems that have energy storage (batteries) as the only possible energy source shall conform to the electrical safety requirements of IEC 62477-1, and the requirements within this Standard.
Inverters for use in inverter energy systems that incorporate energy sources other than photovoltaic (PV) arrays or batteries shall conform to IEC 62477-1, and the requirements within this Standard.
Throughout IEC 62477-1, the term “power electronic converter system (PECS)” is used. For the purposes of this Standard, “PECS” shall be replaced with the term “inverter”.
NOTE The application of relevant electrical safety standards for energy source types is under consideration. The requirements of JEC 62477-1, IEC 62109-1 and IEC 62109-2 may be of some use in identifying potential hazard and risk mitigation methods.
2.3 Provision for external connections
2.3.1 General
Inverters shall be used and installed as fixed equipment only. Inverters shall not be used as portable equipment.
Where an inverter is integral within an electric vehicle, the inverter shall be connected in accordance with Clause 2.3.3.2. Inverter provisions for external connection —
(a) shall be for fixed equipment only; and
(b) shall provide for safe and reliable connection to any d.c. source or load or any a.c. source or load.
All inverter ports (except communications ports) shall incorporate connection types for either —
(i) permanently connected equipment (see Clause 2.3.2); or
(ii) pluggable type B equipment (see Clause 2.3.3).
Inverter source or load connections shall not incorporate connection types for pluggable type
A equipment.
2.3.2 Permanently connected equipment
Permanently connected inverters shall have terminals for connection to fixed installation wiring.AS NZS 4777.2 pdf download.