GE Industrial Solutions CPS6000 - Manual (Page 36)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
36
Precautions
When working on or using this type of equipment, the following precautions should be noted:
• This unit must be installed, serviced, and operated only by skilled and qualified
personnel who have the necessary knowledge and practical experience with electrical
equipment and who understand the hazards that can arise when working on this type of
equipment.
• The equipment could be powered by multiple ac inputs. Ensure that the appropriate
circuit protection device for each ac input being serviced is disconnected before
servicing the equipment. Do not disconnect permanent bonding provisions unless all ac
inputs are disconnected.
• Batteries may be connected in parallel with the output of the rectifiers. Turning off the
rectifiers will not necessarily remove power from the bus. Make sure the battery power
is also disconnected and/or follow safety procedures while working on any equipment
that contains hazardous energy/voltage.
• Hazardous energy and voltages are present in the unit and on the interface cables that
can shock or cause serious injury. Follow all safety warnings and practices when
servicing this equipment. When equipped with ringer modules, hazardous voltages will
be present on the ringer output connectors.
In addition to proper job training and safety procedures, the following are some basic
precautions that should always be used:
• Use only properly insulated tools.
• Remove all metallic objects (key chains, glasses, rings, watches, or other jewelry).
• Wear safety glasses. Fuses can produce sparks. High energy levels on buses and
distribution components can produce severe arcing.
• Test circuits before touching.
• Lock out and tag circuit breakers/fuses when possible to prevent accidental turn on.
• Be aware of potential hazards before servicing equipment.
• Identify exposed hazardous electrical potentials on connectors, wiring, etc. (note the
condition of these circuits, especially wiring).
• Use care when removing or replacing covers; avoid contacting circuits.