Electrical specifications: 1, \"Civil building Electrical design Code\" JGJ16-20082, \"building lightning protection design Code\" GB50057-94 (2000 edition) 3, \"automatic fire alarm system design code\" GB50116-984, \"commonly used low-voltage distribution equipment and lighting installation\" bound volume D702-1~35, \"Lightning Protection and Grounding Installation\" bound volume D501-1~46, \"Residential District Building Electrical Design and Construction\" 03D6037, \"Cable laying\" bound volume D101-1~78, \"Building Integrated Lightning Protection and grounding System Design and Installation\" L04D5029, \"Code for Construction and Acceptance of automatic fire Alarm System\" GB 50166-200710, \"Code for Design of Low-voltage power distribution\" GB50054-9511, \"Common fan control circuit diagram\" 99D303-2 weak current code: 1, safety protection engineering technical code GB50348-2004