CLAMP 1735413 - Caterpillar

High voltage is present. Work on this equipment must be performed by authorized trained personnel. Personnel must be wearing Personal Protective Equipment that meets regulatory requirements to protect the body for the work that is being performed. Failure to use appropriate PPE to protect the body will result in serious personal injury or death.
Before beginning this procedure, ensure that all lockout/tagout procedures for the site are followed to prevent power being applied while the equipment is serviced.Equipotential Bonding Between Systems that are Connected in Parallel
Connect the Exposed Conductive Parts (ECP) of the UPS systems that are connected in parallel. Use an additional earthing cable with the following characteristics:
The size of the cable needs to be equivalent to that of the supply cables.
The cable needs to be as short as possible.Note: This cable is not supplied with the UPS system.
Illustration 1 g01947116
Connection of the earth cable and the securing of the cables
Illustration 2 g01947118
Perform the connections that are indicated in Illustration 2.Redundant Parallel Configuration with a Maximum of Two UPS Systems for Pn)
This configuration does not have an external bypass.UPS Systems with Common Normal and Bypass AC Inputs
Bodily contact with electrical potential can cause bodily injury or death.To avoid the possibility of injury or death, ensure that the main power supply has been disconnected before performing any maintenance or removing any modules.
Illustration 3 g01947120
To access the terminal blocks for the connections, remove the protection cover (12). Refer to Operation and Maintenance, "Component Description".
Failure to connect the unit to a suitable grounding electrode creates an electrical shock hazard. An electrical shock will result in serious personal injury or death.
Connect the earthing conductors to the main earthing connector (17) and to the secondary earthing connector (18) .
Connect the four conductors of the bypass AC source to the bypass AC input terminal block (15) in each UPS system.
Connect the three phases in each system. Connect between the normal AC input