DDSU666-H Smart Power Sensor
User Manual
1 Safety Precautions
Issue 01 (2018-05-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3
Operation
High voltage may cause an electric shock, which results in serious injury, death, or serious
property damage from the DDSU666-H in operation. Strictly comply with the safety
precautions in this document and associated documents when operating the DDSU666-H.
Do not touch an energized DDSU666-H because it has a high temperature.
Follow local laws and regulations when operating the device.
Maintenance and Replacement
High voltage may cause an electric shock, which results in serious injury, death, or serious
property damage from the DDSU666-H in operation. Therefore, before maintenance, power
off the DDSU666-H and strictly comply with the safety precautions in this document and
associated documents to operate the DDSU666-H.
Maintain the DDSU666-H with sufficient knowledge of this document and proper tools
and testing devices.
Temporary warning signs or fences must be placed to prevent unauthorized people from
entering the site.
The DDSU666-H can be powered on only after all faults are rectified. Failing to do so
may escalate faults or damage the device.
During the maintenance, observe ESD precautions and wear ESD gloves.
