7　Electrical Drive and Electrical Engineering

7.1　Low Voltage（LV）Power Supply and Distribution System

7.1.1　The power loads of cold rolling strip plant shall be of ClassⅡorⅢ，and some facilities with tough requirement on power supply safety may be of ClassⅠ.Power distribution system shall adapt to the corresponding power load classification.

7.1.2　The power load classification of fire prevention equipment shall meet the relevant requirements in the current national standard GB 50016 Code for Design of Fire Prevention for Buildings.

7.1.3　Automation control system，important measurement instrument，switch and telephone of IP communication system should be provided with UPS unit as emergency power，of which the backup time shall be long enough for taking necessary emergency actions as the working power fails.

7.1.4　Power for lighting and crane in cold rolling strip plant shall be supplied from dedicated transformer.

7.1.5　The design of LV power supply and distribution system shall also comply with the relevant requirements in the current national standard GB 50054 Code for Design of Low Voltage Electrical Installation.