Safety; Gas Emissions; Electrolyte Leaks - Redflow ZBM Guia De Inicio Rapido

4. Safety

The following general safety rules apply for any operation of the ZBM.
•
Qualified electricians using tools with insulated handles to make all connections.
• Do not smoke in the vicinity of the ZBM.
•
Check any connections are tightened to the required torque values (see Section 3 and the ZBM
Installation and Operation Manual).
•
CAUTION: Even when disconnected, a ZBM battery can remain charged and have voltage on the
battery terminals.
• Consult the Safety Datasheets (SDS) available in the Appendices of the ZBM Installation and Operation
Manual for further information regarding the ZBMs electrolyte.
Personnel responsible for handling the ZBM's electrolyte, including when cleaning up
an electrolyte spill, must be aware of the contents of the Safety Datasheets and the
4.1.

Gas Emissions

Only very small amounts of gas are emitted during normal operation of the ZBM. However, there may be some
amounts of potentially hazardous hydrogen and/or bromine gases emitted via the ZBMs pressure relief valve,
as a result of an operational problem. This gas is automatically diverted to the ZBMs Catch Can, which traps
gases before they reach areas external to the ZBM, reducing the concentration of any emissions. Regardless,
the ZBM should be located in areas designed to ensure adequate ventilation (see ZBM Installation and
Operation Manual for more information).
4.2.

Electrolyte Leaks

The presence of liquid electrolyte in the ZBM means that there is potential for a spill to occur. Any electrolyte
leak or spill should be cleaned up in accordance with the instructions set out in the ZBM Installation and
Operation Manual. Electrolyte can be contained in readily available polyethylene- lined containers or bunding.
This is the same material that the electrolyte tanks are made of.
As a failsafe measure, the ZBM automatically stops its electrolyte pumps if it detects a leak (and many other
operational or hardware issues) and disconnects from the electrical bus. This prevents further electrolyte from
being introduced into the battery's stack and further energy to be supplied to and from the battery. While
there will be a slight increase in temperature, these measures prevent a thermal-runaway situation from
occurring.
Spills and leaks of ZBM electrolyte should be cleaned up immediately and not left as
following safety information.
the ZBM electrolyte does not readily evaporate.
8