IBM 3401-S03, Appliance Operation Manual, Page: 23 / 82

The electrical distribution system must provide a reliable ground for each enclosure, and for the rack.
Each PSU in each enclosure has a ground leakage current of 1.6 mA. The design of the electrical
distribution system must consider the total ground leakage current from all the PSUs in all the
enclosures. The rack must be labeled with the words: “HIGH LEAKAGE CURRENT. Ground connection
essential before connecting supply.”
The rack must meet the safety requirements of UL 60950-1 and IEC 60950-1.
Electrostatic discharge (ESD) precautions
Fit and check a suitable anti-static wrist or ankle strap and observe all conventional ESD precautions
when handling plug-in modules and components. Avoid contact with backplane components and module
connectors.
Regional safety
For North American use, the branch circuit must be rated for 20A.
This equipment is suitable for connection to an IT power system (Norway).
Chapter 1. Appliance safety precautions
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