> Independent exhaust fan provided
> Inlet duct should be below battery level, and outlet at top of the compartment
> Prevention of heat source for ignition
> No naked light and no smoking
> Uses of externally fitted light or flameproof light
> Cables of adequate size and they are well connected
> Never place Emergency Switchboard in this room
> Use insulated spanner and plastic jug for distilled water, to prevent short circuit
> Room temperature, maintained at 15 ~ 25 °C