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P O W E R I N G T E C H N O L O G Y
Document Number: MS0031-MAN rev. 7
guardian_access_ms31-man-rev7-0521.indd
3.1.9 Grounding
WARNING
Grounding connection must be performed
before
operating the system.
Refer to local codes, e.g. ANSI, CEC, NEC, T1-333, ETSI 300-386-TC specifying the
connection of power system to building ground. In case of any doubt regarding the
grounding connection, please contact a person responsible for the system.
WARNING
The system should be hard-wired to the incoming earth ground. A solid high
current ground connection capable of sinking the maximum system current is required.
CAUTION
A conductor is connected between the ground point and the 0 VDC bus bar
on the PBDU distribution. This conductor is connected to its own earth bar and not shared
with other safety conductors.
3.1.10 Batteries
WARNING
When installing or replacing batteries, there is risk of explosion if an incorrect
battery type is used.
3.1.10.1 Lead Acid Batteries
WARNING
This equipment may use Lead Acid Batteries. When handling batteries,
follow the instructions included with the battery set, as the fluids contained within these
batteries are known to be a health hazard. The disposal of lead acid batteries is subject to
legal requirements for hazardous waste disposal. Local guidelines should be followed for
disposal.
Ensure the following guidelines are observed when dealing with equipment that may contain
lead acid batteries:
•
Any attempt to burn these batteries may result in an explosion and the generation of
toxic fumes.
•
Should a lead acid battery suffer damage, it must be moved into a well-ventilated area.
Contact with the corrosive fluid must be avoided.
•
Neutralize any acid corrosion with copious amounts of a solution of baking soda and
water, and then wipe off all traces of soda.
•
If the lead acid battery is removed from the equipment, any exposed contact must be
insulated prior to disposal.
•
Ensure that protective full-face shields, rubber gloves and aprons are worn and
insulated tools are used when working with the batteries. It is advised also to have
water available in case acid gets in contact with the eyes.
