Lenovo 3057 Maintenance Manual page 11

Statement 16
CAUTION:
To reduce the risk of electric shock or energy hazards:
• This equipment must be installed by trained service personnel in a restricted-access location, as
defined by your local electrical code and the latest edition of IEC 60950.
• Connect the equipment to a reliably earthed safety extra low voltage (SELV) source. An SELV
source is a secondary circuit that is designed so that normal and single fault conditions do not
cause the voltages to exceed a safe level (60 V direct current).
• The branch circuit overcurrent protection must be rated in accordance with local electrical code
requirements.
2
• Use 1.3 mm or 16 American Wire Gauge (AWG) copper conductor only, not exceeding 3 meters
in length.
• Torque the wiring-terminal screws to 1.4 newton-meters or 12 inch-pounds.
• Provide a readily available, approved and rated disconnect device in the field wiring.
Statement 17
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments.
Statement 18
CAUTION:
Do not place any object on top of rack-mounted products.
Statement 19
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
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