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NetSure 7100 Series -48V DC Power System Installation Manual (IM582127000)
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Rev. BB
7
IMPORTANT SAFETY INSTRUCTIONS
Safety Admonishments Definitions
Definitions of the safety admonishments used in this document are listed under “Admonishments Used in this
Document” on page 6.
General Safety
DANGER!
YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to hazards. These procedures should be
performed by qualified technicians familiar with the hazards associated with this type of equipment.
These hazards may include shock, energy, and/or burns. To avoid these hazards:
a)
The tasks should be performed in the order indicated.
b)
Remove watches, rings, and other metal objects.
c)
Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage
or the expected voltage is present. Check for voltage with both AC and DC voltmeters prior to
making contact.
d)
Wear eye protection.
e)
Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed.
f)
For 400V DC input systems, do not work on an energized system without full arc flash and PPE
protection.
Voltages
AC Input Voltages
DANGER!
This system may operate from AC input voltage capable of producing fatal electrical shock.
AC input power must be completely disconnected from the branch circuits wiring used to provide power
to the system before any AC electrical connections are made. Follow local lockout/tagout procedures to
ensure upstream branch circuit breakers remain de-energized during installation. DO NOT apply AC
input power to the system until all electrical connections have been completed and checked.
DC Input Voltages
DANGER!
This system may operate from 400V DC input voltage capable of producing fatal electrical
shock. DC input power must be completely disconnected from the branch circuits wiring used to
provide power to the system before any DC electrical connections are made. Follow local lockout/tagout
procedures to ensure upstream branch circuit breakers remain de-energized during installation. DO
NOT apply DC input power to the system until all electrical connections have been completed and
checked.