10Electrical requirements#

10.1General#

The Electrical components and the designs used in the TCMS shall be in accordance with the requirements of AS/NZS 3000 and AS/NZS 3100.

In addition, the electrical design requirements defined in Clause 6 of MRTS263 Standalone Solar (PV) Power Systems apply to this Technical Specification.

10.2Power#

TCMS shall be solar powered and battery-backed in accordance with the requirements of MRTS263 Standalone Solar (PV) Power Systems. The solar PV system shall utilise a voltage of 12V or 24V DC.

The required minimum autonomy for the TCMS, defined as the number of 24 hour days without solar input and no loss of functionality, is 10 days.

Each TCMS shall also have the facility to be energised from an external source including battery packs, and mains power. The mains power inlet shall include a mains battery charger. The TCMS shall also include an IP65 rated locking connector to enable the external power supply to be easily connected and disconnected from the sign so the existing batteries can be charged before being deployed to site or while at site.

Lightning protection compliant with AS 1768 shall be provided.

10.3Electrical Design documentation#

The complete electrical design and implementation specified in this document, shall be shown to meet the main objects of the Professional Engineers Act. This shall be provided as part of the design acceptance requirements detailed in Clause 4.1