1、 http:/ Code for engineering acceptance of generic cabling System for buildig and campus GBT/T 50312-2000 2000 8 1 2000 http:/ 1. 2. 3. 4. 5. 6. 7. 8. A B C D E http:/ 1.0.1 1.0.2 1.0.3 1.0.4 1.0.5 2 0 1 220V 3 0 1 3 0 2 http:/ 3 0 3 100m 1 2 1 2 3 0 4 http:/ 3 0 5 3 0 6 4 0 1 3mm 4 0 2 4 0 3 8 8 8
2、4 0 4 http:/ 50mm 2mm 3mm; 4 0 5 5 1 5 1 1 0.51.0m 1030mm 35m 1 4 4 2 4 610 3 10 4 15 5.1.1-1 5.1.1-2 http:/ 5.1.1-1 (mm) 380V 5Kv.A 130 300 600 70 150 300 80 150 10m 10mm 5.1.1-2 mm mm 1000 300 50 20 500 500 300 300 150 20 300 20 150 20 5 1 2 PVC 50%60% 40%50% 4 4 25%30% 50% 5 1 3 http:/ 2.2m 30mm
3、50 mm 1.5m 1.5m 510m 1.5m 5 1 4 5 1 5 5 2 5 2 1 1 3 25mm 300mm 2 30m 3 4 5 1 50 mm 25mm 2 30m http:/ 3 90 2 S 20m 2 15m 4 6 50mm 10 5 2550mm 1 2 3 200mm 70mm 4 1 1.53m 2m 1.8m 2 - - 3m - 0.5m - 3 1m 150300mm 5 2 2 5 2 3 http:/ 6 0 1 6 0 2 5 13mm 8 6.0.2 A 360 10mm 6 0 3 6.0.3 6.0.3 dB 0.15 0.3 0.15
4、0.3 6 0 4 5m 10m http:/ 7 0 1 7.0.1 http:/ 7.0.1 5 2 7 0 2 7.0.2 7.0.2 1100 (MHz) 1 65-15log(f100)dB 2 NEXT 55-15log(f100)dB 3 37-15log(f100)dB 4 37-15log(f100)dB 5 0.75dB 6 1m4% 7 15dB 0dB NEXT 10dB 60dB 7 0 3 3 5 7 0 4 http:/ 7 0 5 8 0 1 1 2 3 4 5 6 7 8 9 8 0 2 A 8 0 3 8 0 4 A A 1 1 http:/ 2 3 4 2 1 2 3 4 3 1 2 3 1 1 2 3 4 5
