1. Scope of application
The product is manufactured according to RCC-E ""Nuclear island electric equipment design and construction rule”, IEC383 "" on site connector and connection piece type test of Grade 1E cable for nuclear power staion”, and is suitable for outer use cable of nuclear island in nuclear power station and other occasions which have high electric physical flame-retardant requirements of cable.                                                 

2. Standard
The cable is manufactured according to company standard Q/320282 BND 053-2008.

3. Type of product
Grade 1E, class K3 nickel-chromium 10 alloy of positive pole and nisiloy alloy of negative pole XLPE insulated polyolefin sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
 Grade 1E, class K3 copper of positive pole and colomony of negative pole XLPE insulated polyolefin sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
Grade 1E, class K3 nickel-chromium 10 alloy of positive pole and nisiloy alloy of negative pole XLPE insulated copper wire braid screened polyolefin sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
Grade 1E, class K3 copper of positive pole and colomony of negative pole XLPE insulated copper wire braid screened polyolefin sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
Grade 1E, class K3 nickel-chromium 10 alloy of positive pole and nisiloy alloy of negative pole XLPE insulated XLPE sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
Grade 1E, class K3 copper of positive pole and colomony of negative pole XLPE insulated XLPE sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station
Grade 1E, class K3 nickel-chromium 10 alloy of positive pole and nisiloy alloy of negative pole XLPE insulated copper wire braid screened XLPE sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station 
Grade 1E, class K3 copper of positive pole and colomony of negative pole XLPE insulated copper wire braid screened XLPE sheathed low smoke no halogen (class A or B) flame retardant extension cable for nuclear power station

4. Operating characteristics
1、rated voltage U0/U 300/500V
2、permissible continuous operating temperature of conductor: 90℃
3、permissible short circuit temperature of conductor: no higher than 250℃ within 5s
4、Ambient temperature of installation shall be no lower than 0℃。
5、Insulation shall adopt double layer structure.
6、The braid density of copper wire braid shall be no less than 80%.
7、The thermal life evaluation result of cable shall meet the requirement working life no less than 40 years.
8、The complete cable shall pass the specified class A or B combustion for bunched cable test
9、The smoke density test of complete cable burning shall meet the requirement of GB/T17651.

5. Construction of cable