Keysight Technologies B1505A User Manual page 149

Figure 3-18
WARNING
Make enough space between the High-Low cable ends, also between the
high side cable end and the shield/chassis, for example, about 1 mm for
maximum 200 V output, 6 mm for 3000 V, and 32 mm for 10 kV, to prevent
discharge and any accident. Also the creepage distance must be more than
100 mm for 10 kV.
5. Close the fixture cover before starting measurement.
Space around Cable End
Insulator
Shield
UHV Cable
100 mm for 10 kV
To UHVU High
Wrap an insulator around the naked conductors of coaxial cable to avoid
touching it.
Enroulez un isolant autour des conducteurs dénudés du câble coaxial afin
d'éviter de les toucher.
• Universal resistor Box (N1265A-035)
This is a blank box, kind of a do-it-yourself kit for installing a resistor you want.
Generally, inserting a resister between SMU and DUT is effective for reducing
damage of DUT or preventing SMU from oscillation. You can insert your
desired resistor by using this box. This box is designed for using the MCSMU.
• Protection Adapter (N1265A-040)
This is the adapter for protecting MCSMU from ultra high voltage. For active
device measurement using UHVU, use MCSMU and this adapter for the
gate/base and chuck terminals. This adapter must be attached to the SMU
terminals for preventing MCSMU from damage.
• Container (N1265A-045)
This container can accommodate protection adapters and bias-tee which are
used with the N1265A to make the measurement environment clean and safe.
Maximum superimposed load is 50 kg. The N1265A and the N1266A can be put
on the top of the container.
Keysight B1505A User's Guide, Edition 12
Signal line
Insulator
32 mm for 10 kV
Accessories
SHV Cable
To UHVU Low
3-53