Safety Precautions - Siemens 9810 Series User Manual

Safety precautions

Safety precautions
Installation, wiring, testing and service must be performed in accordance with all local and
national electrical codes.
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
Failure to follow these instructions will result in death or serious injury.
• Apply appropriate Personal Protective Equipment (PPE) and follow safe electrical work
practices. See NFPA 70E, CSA Z462 or other local standards.
• Turn off all power supplying this device and the equipment in which it is installed before
working on or in the equipment.
• Follow guidelines in the Wiring section of the related Installation Guide.
• Always use a properly rated voltage sensing device to confirm that all power is off.
• Do not use the data from the meter to confirm power is off.
• Do not exceed the maximum ratings of this device.
• Do not short secondary terminals of Voltage Transformer (VT).
• Do not open secondary terminals of Current Transformer (CT).
• Ground secondary circuit of CTs.
• Do not install CTs in equipment where they exceed 75% of the wiring space of any cross-
sectional area in the equipment.
• Do not install CTs in areas where ventilation openings may be blocked or in areas of breaker
arc venting.
• Do not install CTs using Class 2 wiring methods or connect to Class 2 equipment. See NFPA
70.
• Secure CT secondary conductors to ensure they do not contact live circuits.
• Assume communications and I/O wiring are hazardous live until determined otherwise.
• Replace all devices, doors and covers before turning on power to this equipment.
NOTE: See IEC 60950-1 for more information on communications and I/O wiring connected to
multiple devices.
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DANGER
9410 series - User manual
7EN05-0336-09