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Standart: VDE 0815
Description: PVC insulation • pairs stranded in layers • static screen • sheath of PVC
Application:
These cables are used for installation of equipment of telephone stations. They are suitable for fixed indoor installation and for external walls of buildings. The screen of metal foil protects the cable from external electrical interferences. The use of these cables for power installations and underground installation is not permitted.
Features:
| Color coding | ||||||||||
| Number of pairs. The pairs are counted successively commencing at the outside and counting inwards in the same manner throught all layers |
Colors b-wire |
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| 1 | 6 | 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | blue |
| 2 | 7 | 12 | 17 | 22 | 27 | 32 | 37 | 42 | 47 | yellow |
| 3 | 8 | 13 | 18 | 23 | 28 | 33 | 38 | 43 | 48 | green |
| 4 | 9 | 14 | 19 | 24 | 29 | 34 | 39 | 44 | 49 | brown |
| 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | black |
| 51 | 56 | 61 | 66 | 71 | 76 | 81 | 86 | 91 | 96 | blue |
| 52 | 57 | 62 | 67 | 72 | 77 | 82 | 87 | 92 | 97 | yellow |
| 53 | 58 | 63 | 68 | 73 | 78 | 83 | 88 | 93 | 98 | green |
| 54 | 59 | 64 | 69 | 74 | 79 | 84 | 89 | 94 | 99 | brown |
| 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | black |
| Identification of the a-wire for the first pair (counting pair) is red in each layer , and white for all other pairs . | ||||||||||
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Cable construction |
Technical data |
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| Conductor | bare copper conductor diameter 0.6 mm and 0.8mm |
Conductor diameter | 0.6mm | 0.8mm |
| Cond. resistance of the loop at 20° C - max. | 130 73.2Ω/km | |||
| Insulation |
PVC compound |
Insulation resistance min. | 100MΩ.km | |
| Pairs | each 2 wires are twisted to a pair | Mutual capacitance at 800Hz-max. | 100nF/km | |
| Cable core | the pairs are stranded into layers | Capacitance unbalances at 800Hz K1- max. | 300pF/100m | |
| Wrapping | several layers of plastic tapes | |||
| Screen | of aluminum tape one side coated with polyester and 1 tinned copper wire with diameter : 0.4mm for cables up to 10 pairs 0.6mm for cables exceeding 10 pairs |
Test voltage 50Hz, 1 min. wire - wire wire - screen |
800V 800V |
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| Operating voltage peak value | 300V | |||
| Sheath | PVC compound | Temperature range mobile fixed |
-5° C to +50° C -30° C to +70° C |
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| Minimum bending radius approx. | 7.5 x cable diameter | |||
| Type codes |
| J installation cable |
| Y insulation or sheath of PVC |
| (St) static screen |
| Lg aid up in layers |
| Cable core construction | ||||||
| Number of pairs |
Number of pairs in centre and successive layers | |||||
| First layer | Second layer | Third layer | Fourth layer | Fifth layer | Sixth layer | |
| 3 | 3 | |||||
| 4 | 4 | |||||
| 6 | 6 | |||||
| 8 | 1 | 7 | ||||
| 10 | 2 | 8 | ||||
| 12 | 3 | 9 | ||||
| 16 | 5 | 11 | ||||
| 20 | 1 | 6 | 13 | |||
| 24 | 2 | 8 | 14 | |||
| 30 | 4 | 10 | 16 | |||
| 40 | 1 | 7 | 13 | 19 | ||
| 50 | 4 | 10 | 15 | 21 | ||
| 100 | 2 | 8 | 14 | 20 | 25 | 31 |