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Agilent Technologies 1989–2002
Agilent 3070 / 79000 Site Preparation
10-124
Chapter 10: Site Preparation – Power Requirements for Older Systems: Tester Power Requirements (Series I/II)
E1170-80003 PDK Electrical Requirements
1
shows the electrical requirements for
Agilent 317X Series I systems.
2
This table is valid for
all power options. The power requirements are based on
the maximum number of modules and DUT power
supplies.
Verifying the AC Input
Before installing the "mains" drop for an E1170-80003
PDK, the ac source must be verified to assure that it is
adequate to power the test system.
Sizing the Input Conductors and Breakers
To ensure adequate rms voltage for proper system power
supply operation, a system drop connected to an ac
source with the minimum voltage must be sized to
handle rms current loads with less than a 5-percent drop
between the ac source and the system. Using an
inadequate conductor size can cause a voltage drop
across the system drop. This could mean that the rms
voltage into the PDK is not sufficient for proper
operation. If the ac source provides more than the
minimum voltage, then the maximum voltage loss
between the source and the system is not as critical.
NOTE
The wire sizes recommended in this chapter are
for the SO cord from the receptacle to the system.
The electrician has the responsibility to size the
service to the receptacle so that the voltage drop
from the source to the 3070 system does not
exceed 5-percent of the nominal voltage.
CAUTION
✸
All power configurations using a neutral are
unbalanced, so there will be neutral current.
Therefore, make the neutral conductor the same
size as the line conductors.
1
See the
E1099A Power Distribution Unit Installation and Service Manual
, E1099-90000, for more information.
2
The E1170-80003 PDK was only used with 3170X systems, not 307X systems.
