How to Label Backup Circuits on Switchboard

When you install a battery system with backup supply, you must attach the mandatory labels to switchboard preventing the residents and any personnel attending the system from unforeseen electric shock.

1. Warning Label (multi-mode inverter)

2. Alternative Supply Circuits Label

These labels can help the residents and any personnel attending the system to acknowledge the system may still supply power during grid outages or when the grid supply is switched off.

You may follow this guide when labelling the system.

If the system has no backup supply:

1. No need Warning Label (multi-mode inverter)

2. No need Alternative Supply Circuits Label

If the system has separate backup circuits:

1. Fit Warning Label (multi-mode inverter) to switchboard or on the black panel in meter box.

2. Fit Alternative Supply Circuits Label to switchboard grouping all separate backup circuit switches, or by any practicable way clearly identify these switches as "alternative" or "backup".

If the system has whole house backup:

1. Fit Warning Label (multi-mode inverter) to switchboard or on the black panel in meter box.

2. You still need to warn the residents of backup supply. Because when grid blackout, the battery can independently supply power to home loads and the circuits are live.

You may fit the labels provided below or by any practicable way mark the similar text to the switchboard:

(This is just an example, you may reasonably mark the switches ensuring the residents acknowledge the whole house is backed up)