Nuclear Power Plant Instrumentation Cable, Non-Class 1E
Low Smoke, Halogen Free, Flame Retardant
Standards Manufactured according to Q/320411AVX001 “Computer control cable” standards.
Application The non-class 1E nuclear power plant instrumentation cable is designed to link sensors and electrical appliances, computers and data processors in BOP control systems and nuclear power plants.
Properties 1. Rated voltage: 300/500V.
2. The permitted long-term working temperature of conductor: 90℃.
3. Flame retardant property: The cable can pass the bunched flame retardant test according to GB/T 18380(IEC 60332-3).
4. The cable can pass the smoke density test according to GB/T 17651(IEC 61034).
5. Insulation and sheath material of the cable should be tested according to GB/T 17650(IEC60754), with pH no less than 4.3, and conductivity should be less than 10ms/mm.
6. The fire resistant cable can pass the test according to GB/T 19216.21(IEC 60331-21).
The DC Resistance of the Conductor and Insulation Resistance
| Nominal sectional area mm 2 | DC resistance of conductor at 20 ℃ ≤Ω/km | Insulation Resistance at 20 ℃ ≥MΩ·km |
| Tinned Copper | XLPE insulated | |
| 0.35 | 60.3 | 1560 |
| 0.5 | 36.7 | 1 350 |
| 0.75 | 24.8 | 1 168 |
| 1.0 | 18.2 | 1048 |
| 1.5 | 12.2 | 909 |
| 2.5 | 7.56 | 825 |
| Note: The conductor construction may be class 2 of GB/T 3956 ( IEC 60228). | ||
Properties 1. Rated voltage: 300/500V.
2. The permitted long-term working temperature of the conductor: 90℃.
3. The permitted bending radius of cable: No less than 8 times of the overall diameter of the cable.
4. The Min. environmental temperature:-15℃.
5. Min. laying temperature of the cable is 0℃. The cable should be pre-heated if it is below the Min. laying temperature.
6. Normally service life: at least 40 years.
7. Combustibility
7.1 The cable can pass the test according to GB/T 18380.34( IEC 60332-3-23).
7.2 For cross-linked polyolefin insulated cable, the insulated core can pass the test according to GB/T 18380.12 (IEC60332-1).
8. The cable can pass the test according to GB/T 17651(IEC 61034).
9. Insulation and sheath material of the cable should be tested according to GB/T 17650（IEC 60754-2) which pH is no less than 4.3, and conductivity should be less than 10ms/mm.
10. Electrical properties:
10.1 It can withstand AC 2500V/5min high voltage tests between the insulated conductors.
10.2 It can withstand AC 1500V/5min high voltage tests between the insulated conductor and shield.
10.3 DC resistance of conductor at 20℃ is shown in table 3.
10.4 Insulation resistance at 20℃ is shown in table 4.
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