Indoor Switchboard Telephone Cables to CW 12931

Applications

The cables are designed to handle low frequency signals for short range applications,suitable for cross connecting individual items of switchboard equipment and to connect exchanges with internal distribution points. The cables are intended to be terminated in Insulation/displacement Connectors (IDC).

Standards

  • CW 1293
  • IEC 60189-2
  • IEC 60332-1
  • UL1581 VW-1 & UL1666
  • IEEE 383CI.IE

Construction

Telephone Cable - CW1293 Switchboard Telephone Cable Switchboard Telephone Cable - Indoor Telephone Cables
Conductors Solid annealed bare copper 0.4/0.5/0.6/0.9mm as per class 1 of BS 6360 and IEC 60228.
Insulation Colour coded PVC T154 to BS 7878 or equivalent. LSZH option can be offered upon request.
Twisted Pairs Insulated conductors are twisted into pairs with varying lay length to minimize crosstalk.
Cabling Element Twisted Pairs/Triples/Quads.
Cable Core Assembly There are two modes of construction: layer construction and unit construction. For layer construction, cables are laid up in concentric layers to form a compact and circular cable. For unit construction, the elements shall be pairs and shall be laid up as units or sub-units. Each unit shall consist of 20 pair.
Core Wrapping Cable containing more than 12 wires has a polyester tape applied over the cable core prior to sheathing.
Screen (optional) An aluminium polyester foil shield can be provided for fully enclosing the core with an overlap.
Sheath PVC TM51 to BS 7878 or equivalent. Grey, White or Cream colours are standard. LSZH option can be offered upon request.
Ripcord Nylon ripcord may be placed parallel to the cores to facilitate sheath removal.
Drain Wire (optional) For screened cables, a solid tinned copper drain wire may be longitudinally laid to ensure electrical continuity of the screen.

Electrical properties

Nominal Conductor Diameter mm 0.4 0.5 0.6 0.9
Conductor Size mm2 0.126 0.196 0.28 0.636
Maximum Conductor Resistance @20°C Ω/km 153 97.8 67.9 29.6
Minimum Insulation Resistance @500V DC @20°C MΩ.km 50 50 50 50
Maximum Capacitance Unbalance pair-to-pair * pF/500m *200/300 500 300 300
Minimum Insulation Thickness mm 0.15 0.15 0.15 0.25
Maximum Insulated Conductor Diameter mm 0.85 0.95 1.05 1.6

* For 25, 50 & 100 pair 0.4mm conductor size

Mechanical and thermal properties

Temperature range during operation (fixed state) : -30°C – +70°C

Temperature range during installation (mobile state) : -20°C – +50°C

Minimum bending radius : 7.5 x Overall Diameter (unarmoured cables)

Colour code

The pair colour scheme for these cables complies with IEC 189-2 & 189-3 given in the Colour Code Chart below, with the exception of the 2 pair cable, which is constructed as a quad and a colour scheme of Blue, Green, Orange and Brown respectively.

Make-up & Unit Identification Colours – 20 Pair Unit

Pair Size 20 Pairs 40 Pairs 80 Pairs 160 Pairs 320 Pairs
Number of Units
Center 1 4 x  ½ 1 4 x  ½ 1
1st Layer 6 x  ½ 6 5
2nd Layer 10
Colours of Unit Lappings
1 ORANGE ORANGE ORANGE ORANGE ORANGE
2 GREEN ORANGE GREEN ORANGE
3 NATURAL ORANGE NATURAL
4 GREEN NATURAL NATURAL
5 NATURAL NATURAL
6 NATURAL GREEN
7 NATURAL ORANGE
8 GREEN NATURAL
9 – 15 NATURAL
16 GREEN

Note 1: ½ refers to sub-units of 10 Pairs.

Colour Scheme for Pairs & Triples

Cabling
Element
No.
a-wire b-wire Cabling
Element
No.
a-wire b-wire Cabling
Element
No.
a-wire b-wire
1 WHITE BLUE 41 WHITE Orange BLUE 81 WHITE Brown BLUE
2 WHITE ORANGE 42 WHITE Orange ORANGE 82 WHITE Brown ORANGE
3 WHITE GREEN 43 WHITE Orange GREEN 83 WHITE Brown GREEN
4 WHITE BROWN 44 WHITE Orange BROWN 84 WHITE Brown BROWN
5 WHITE GREY 45 WHITE Orange GREY 85 WHITE Brown GREY
6 RED BLUE 46 ORANGE Red BLUE 86 RED Brown BLUE
7 RED ORANGE 47 ORANGE Red ORANGE 87 RED Brown ORANGE
8 RED GREEN 48 ORANGE Red GREEN 88 RED Brown GREEN
9 RED BROWN 49 ORANGE Red BROWN 89 RED Brown BROWN
10 RED GREY 50 ORANGE Red GREY 90 RED Brown GREY
11 BLACK BLUE 51 ORANGE Black BLUE 91 BROWN Black BLUE
12 BLACK ORANGE 52 ORANGE Black ORANGE 92 BROWN Black ORANGE
13 BLACK GREEN 53 ORANGE Black GREEN 93 BROWN Black GREEN
14 BLACK BROWN 54 ORANGE Black BROWN 94 BROWN Black BROWN
15 BLACK GREY 55 ORANGE Black GREY 95 BROWN Black GREY
16 YELLOW BLUE 56 YELLOW Orange BLUE 96 YELLOW Brown BLUE
17 YELLOW ORANGE 57 YELLOW Orange ORANGE 97 YELLOW Brown ORANGE
18 YELLOW GREEN 58 YELLOW Orange GREEN 98 YELLOW Brown GREEN
19 YELLOW BROWN 59 YELLOW Orange BROWN 99 YELLOW Brown BROWN
20 YELLOW GREY 60 YELLOW Orange GREY 100 YELLOW Brown GREY
21 WHITE Blue BLUE 61 WHITE GREEN BLUE 101 WHITE Grey BLUE
22 WHITE Blue ORANGE 62 WHITE GREEN ORANGE 102 WHITE Grey ORANGE
23 WHITE Blue GREEN 63 WHITE GREEN GREEN 103 WHITE Grey GREEN
24 WHITE Blue BROWN 64 WHITE- GREEN BROWN 104 WHITE Grey BROWN
25 WHITE Blue GREY 65 WHITE GREEN GREY 105 WHITE Grey GREY
26 RED Blue BLUE 66 GREEN Red BLUE 106 GREY Red BLUE
27 RED Blue ORANGE 67 GREEN Red ORANGE 107 GREY Red ORANGE
28 RED Blue GREEN 68 GREEN Red GREEN 108 GREY Red GREEN
29 RED Blue BROWN 69 GREEN Red BROWN 109 GREY Red BROWN
30 RED Blue GREY 70 GREEN Red GREY 110 GREY Red GREY
31 BLUE Black BLUE 71 GREEN Black BLUE 111 GREY Black BLUE
32 BLUE Black ORANGE 72 GREEN Black ORANGE 112 GREY Black ORANGE
33 BLUE Black GREEN 73 GREEN Black GREEN 113 GREY Black GREEN
34 BLUE Black BROWN 74 GREEN Black BROWN 114 GREY Black BROWN
35 BLUE Black GREY 75 GREEN Black GREY 115 GREY Black GREY
36 YELLOW Blue BLUE 76 YELLOW Green BLUE 116 YELLOW Grey BLUE
37 YELLOW Blue ORANGE 77 YELLOW Green ORANGE 117 YELLOW Grey ORANGE
38 YELLOW Blue GREEN 78 YELLOW Green GREEN 118 YELLOW Grey GREEN
39 YELLOW Blue BROWN 79 YELLOW Green BROWN 119 YELLOW Grey BROWN
40 YELLOW Blue GREY 80 YELLOW Green GREY 120 YELLOW Grey GREY

Note 1: In each triple there shall be a c-wire, coloured Turquoise.

Note 2: Uppercase letters indicate the base, solid colour of insulation, and the lower case indicates ink bands applied onto the base colour.

Dimensions and weight

Cable Code Number of Pairs Make Up Minimum Insulation Thickness Minimum Sheath Thickness Maximum Overall Diameter Nominal Weight
mm mm mm kg/km
0.4mm Conductor, 0.85mm Insulated Wire-Pair Wires
TP1293-YY-1P04 1 Layer 0.15 0.4 3.3 10
TP1293-YY-3P04 3 Layer 0.15 0.5 5.3 15
TP1293-YY-6P04 6 Layer 0.15 0.6 6.8 37
TP1293-YY-10P04 10 Layer 0.15 0.6 8.3 54
TP1293-YY-12P04 12 Layer 0.15 0.7 8.9 61
TP1293-YY-16P04 16 Layer 0.15 0.7 9.8 80
TP1293-YY-20P04 20 Layer 0.15 0.7 10.4 95
TP1293-YY-25P04 25 Layer 0.15 0.8 11.1 115
TP1293-YY-40P04 40 Layer 0.15 0.9 13.8 200
TP1293-YY-50P04 50 Layer 0.15 0.9 14.1 225
TP1293-YY-60P04 60 Layer 0.15 1.0 15.8 245
TP1293-YY-72P04 72 Layer 0.15 1.1 17.3 285
TP1293-YY-100P04 100 Layer 0.15 1.2 20.1 415
0.5mm Conductor, 0.95mm Insulated Wire-Pair Wires
TP1293-YY-1P05 1 Layer 0.15 0.4 3.3 12
TP1293-YY-2P05 2 Layer 0.15 0.4 4.0 25
TP1293-YY-3P05 3 Layer 0.15 0.5 5.3 30
TP1293-YY-4P05 4 Layer 0.15 0.5 5.8 40
TP1293-YY-6P05 6 Layer 0.15 0.6 6.8 50
TP1293-YY-8P05 8 Layer 0.15 0.6 7.6 65
TP1293-YY-10P05 10 Layer 0.15 0.6 8.3 75
TP1293-YY-12P05 12 Layer 0.15 0.7 9.1 98
TP1293-YY-15P05 15 Layer 0.15 0.7 9.8 110
TP1293-YY-16P05 16 Layer 0.15 0.7 10.0 115
TP1293-YY-20P05 20 Layer 0.15 0.7 10.7 140
TP1293-YY-20P05U 20 Unit 0.15 0.7 10.7 141
TP1293-YY-(20+1)P05 20+1 Layer 0.15 0.7 10.7 146
TP1293-YY-24P05 24 Layer 0.15 0.8 11.3 160
TP1293-YY-25P05 25 Layer 0.15 0.8 11.4 165
TP1293-YY-28P05 28 Layer 0.15 0.8 11.5 180
TP1293-YY-30P05 30 Layer 0.15 0.8 12.2 190
TP1293-YY-40P05 40 Layer 0.15 0.9 14.2 250
TP1293-YY-42P05 42 Layer 0.15 1.0 14.5 260
TP1293-YY-50P05 50 Layer 0.15 1.0 15.7 320
TP1293-YY-53P05 53 Layer 0.15 1.0 15.9 330
TP1293-YY-60P05 60 Layer 0.15 1.0 16.3 380
TP1293-YY-75P05 75 Layer 0.15 1.1 17.8 440
TP1293-YY-80P05 80 Layer 0.15 1.2 21.8 500
TP1293-YY-80P05U 80 Unit 0.15 1.2 21.8 500
TP1293-YY-100P05 100 Layer 0.15 1.4 22.6 635
TP1293-YY-120P05 120 Layer 0.15 1.5 25.2 770
TP1293-YY-160P05U 160 Unit 0.15 1.7 29.8 1175
TP1293-YY-320P05U 320 Unit 0.15 2.2 39.1 2255
0.6mm Conductor, 1.05mm Insulated Wire-Pair Wires
TP1293-YY-3P06 3 Layer 0.15 0.5 5.3 40
TP1293-YY-6P06 6 Layer 0.15 0.6 7.1 66
TP1293-YY-10P06 10 Layer 0.15 0.7 8.9 99
TP1293-YY-20P06 20 Layer 0.15 0.8 11.2 193
TP1293-YY-40P06 40 Layer 0.15 1.0 15.5 350
TP1293-YY-50P06 50 Layer 0.15 1.1 16.5 434
TP1293-YY-60P06 60 Layer 0.15 1.1 18.0 510
TP1293-YY-80P06 80 Layer 0.15 1.3 22.0 700
TP1293-YY-100P06 100 Layer 0.15 1.5 24.6 810
0.9mm Conductor, 1.6mm Insulated Wire-Pair Wires
TP1293-YY-1C09 1 Wire N/A 0.25 0.4 3.0 25
TP1293-YY-2P09 2 Layer 0.25 0.5 4.5 50
TP1293-YY-6P09 6 Layer 0.25 0.6 7.6 100
TP1293-YY-12P09 12 Layer 0.25 0.8 10.1 225
TP1293-YY-20P09 20 Layer 0.25 0.9 12.7 322
TP1293-YY-24P09 24 Layer 0.25 0.9 12.9 370

 

Cable Code Number of Pairs Make Up Minimum Insulation Thickness Minimum Sheath Thickness Maximum Overall Diameter Nominal Weight
mm mm mm kg/km
0.4mm Conductor, 0.85mm Insulated Wire-Triple Wires
TP1293-YY-6T04 6 Layer 0.15 0.6 7.9 50
TP1293-YY-10T04 10 Layer 0.15 0.7 9.6 80
TP1293-YY-20T04 20 Layer 0.15 0.8 11.8 145
0.5mm Conductor, 0.95mm Insulated Wire-Triple Wires
TP1293-YY-1T05 1 Layer 0.15 0.4 3.5 20
TP1293-YY-10T05 10 Layer 0.15 0.7 9.8 115
TP1293-YY-20T05 20 Layer 0.15 0.8 12.2 190
TP1293-YY-(20+1)T05 20+1 Layer 0.15 0.8 12.2 205
TP1293-YY-25T05 25 Layer 0.15 0.9 12.9 250
TP1293-YY-35T05 35 Layer 0.15 0.9 13.4 325
TP1293-YY-40T05 40 Layer 0.15 1.0 16.3 380
TP1293-YY-46T05 46 Layer 0.15 1.1 17.2 430
TP1293-YY-50T05 50 Layer 0.15 1.1 17.8 505
TP1293-YY-100T05 100 Layer 0.15 1.7 29.0 950
0.6mm Conductor, 1.05mm Insulated Wire-Triple Wires
TP1293-YY-1T06 1 Layer 0.15 0.4 3.7 27
TP1293-YY-10T06 10 Layer 0.15 0.8 10.1 167
TP1293-YY-20T06 20 Layer 0.15 0.9 13.4 270
TP1293-YY-25T06 25 Layer 0.15 1.0 15.0 360
TP1293-YY-40T06 40 Layer 0.15 1.1 18.0 530
TP1293-YY-46T06 46 Layer 0.15 1.2 19.3 600
TP1293-YY-50T06 50 Layer 0.15 1.2 19.3 700

 

Cable Code Number of Pairs Make Up Minimum Insulation Thickness Minimum Sheath Thickness Maximum Overall Diameter Nominal Weight
mm mm mm kg/km
0.4mm Conductor, 0.85mm Insulated Wire–Pair & Triple Wires
TP1293-YY-10P10T04 10 Layer 0.15 0.8 11.1 115
0.5mm Conductor, 0.95mm Insulated Wire-Pair & Triple Wires
TP1293-YY-10P10T05 10 Layer 0.15 0.8 11.4 165
TP1293-YY-20P10T05 20 Layer 0.15 1.0 15.7 320
TP1293-YY-25P10T05 25 Layer 0.15 1.1 16.7 410
TP1293-YY-50P10T05 50 Layer 0.15 1.6 27.2 950
0.6mm Conductor, 1.05mm Insulated Wire-Pair & Triple Wires
TP1293-YY-10P10T06 10 Layer 0.15 0.9 12.9 230
TP1293-YY-20P10T06 20 Layer 0.15 1.1 16.5 430
TP1293-YY-25P10T06 25 Layer 0.15 1.2 18.5 520
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