Shield M10U, User Manual

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Chapter 2 Battery Installation
Shield M10U user manual 17
Chapter 2 Battery Installation and Maintenance
2.1 General Recommendations
Take special care when operating the batteries of the Modular UPS system. When all the battery cells are
connected, the battery voltage can exceed 400Vdc, which is potentially lethal.
Note
The precautions for battery installation, use and maintenance are to be provided by the batteries manufacturers.
The precautions in this section include the key issues that must be considered during the installation design, which
may be adjusted according to the specific local situations.
Battery Room Design

The battery shall be installed and stored in a clean, cool and dry environment.

Do not install the battery in a sealed battery chamber or sealed room. The battery room ventilation shall at
least meet the requirement of EN50272-2001. Otherwise, battery bulging, fire and even human injury may be
caused.

The battery shall be installed far away from the heating source (e.g. transformer). Do not use or store the
battery in the place near the heating source or burn the battery or place it into fire. Otherwise, battery
leakage, bulging, fire or explosion may be caused.

Batteries shall be placed in such a manner that two bare live parts with the potential difference of more than
150V shall not be contactored at the same time. If it is unavoidable, insulated terminal cover and insulated
cables shall be used for connection.

If external batteries are to be used, the battery circuit breakers (or fuses) must be mounted as close as possible
to the batteries, and the connecting cables should be as short as possible.
Battery Handling
When connecting the battery, follow the precautions for high-voltage operation

Before accepting and using the battery, check the appearance the battery. If the package is damaged, or the
battery terminal is dirty, corroded or rusted or the shell is broken, deformed or has leakage, replace it with
new product. Otherwise, battery capacity reduction, electric leakage or fire may be caused.
 Before operating the battery, remove the finger ring, watch, necklace, bracelet and any other metal
jewelry

Wear rubber gloves.
 Eye protection should be worn to prevent injury from accidental electrical arcs.
 Only use tools (e.g. wrench) with insulated handles.

The batteries are very heavy. Please handle and lift the battery with proper method to prevent any human
injury or damage to the battery terminal.

Do not decompose, modify or damage the battery. Otherwise, battery short circuit, leakage or even human
injury may be caused.

The battery contains sulfuric acid. In normal operation, all the sulfuric acid is attached to the separation board
and plate in the battery. However, when the battery case is broken, the acid will leak from the battery.
Therefore, be sure to wear a pair of protective glasses, rubber gloves and skirt when operating the battery.
Otherwise, you may become blind if acid enters your eyes and your skin may be damaged by the acid.

At the end of battery life, the battery may have internal short circuit, drain of electrolytic and erosion of
positive/negative plates. If this condition continues, the battery may have temperature out of control, swell or
leak. Be sure to replace the battery before these phenomena happen.

If a battery leaks electrolyte, or is otherwise physically damaged, it must be replaced, stored in a container
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