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Colour Codes & Cable Make Up |
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A) Colour Code According to IEC 189-3 |
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Standard Colours |
Easily Identifiable Combinations |
Less-easily Identifiable Combinations |
BLUE |
Red |
Black |
BROWN |
Black |
ORANGE |
Red |
BLUE |
ORANGE |
Black |
GREEN |
ORANGE |
GREEN |
ORANGE |
GREY |
BROWN |
ORANGE |
BLUE |
GREEN |
GREY |
GREY |
ORANGE |
VIOLET |
GREEN |
VIOLET |
WHITE |
YELLOW |
Black |
VIOLET |
Black |
Red |
YELLOW |
Red |
GREY |
Black |
Black |
YELLOW |
GREEN ** |
GREY |
VIOLET |
YELLOW |
YELLOW |
BLUE |
WHITE |
BROWN |
VIOLET |
YELLOW |
VIOLET |
WHITE |
ORANGE |
PINK |
GREEN |
Black |
WHITE |
VIOLET |
TURQUOISE |
GREEN |
Red |
GREEN |
BLUE |
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BLUE |
Black |
BROWN |
BLUE |
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GREY |
Red |
GREY |
BROWN |
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GREY |
BLUE |
GREEN |
BROWN |
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WHITE |
Black |
WHITE |
GREY |
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WHITE |
Red |
ORANGE |
BROWN |
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WHITE |
GREEN |
ORANGE |
Red |
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WHITE |
BLUE |
Red |
BROWN |
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WHITE |
YELLOW |
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**NOTE: The colour YELLOW-Green should be reserved for earth or safety wires |
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B) Colour Code & Cable Make Up According to ICEA S-80-576
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Pair No. |
a-wire |
b-wire |
Pair No. |
a-wire |
b-wire |
1 |
WHITE |
BLUE |
BLUE |
White |
13 |
Black |
GREEN |
GREEN |
Black |
2 |
WHITE |
ORANGE |
ORANGE |
White |
14 |
Black |
BROWN |
BROWN |
Black |
3 |
WHITE |
GREEN |
GREEN |
White |
15 |
Black |
GREY |
GREY |
Black |
4 |
WHITE |
BROWN |
BROWN |
White |
16 |
YELLOW |
BLUE |
BLUE |
YELLOW |
5 |
WHITE |
GREY |
GREY |
White |
17 |
YELLOW |
ORANGE |
ORANGE |
YELLOW |
6 |
Red |
BLUE |
BLUE |
Red |
18 |
YELLOW |
GREEN |
GREEN |
YELLOW |
7 |
Red |
ORANGE |
ORANGE |
Red |
19 |
YELLOW |
BROWN |
BROWN |
YELLOW |
8 |
Red |
GREEN |
GREEN |
Red |
20 |
YELLOW |
GREY |
GREY |
YELLOW |
9 |
Red |
BROWN |
BROWN |
Red |
21 |
VIOLET |
BLUE |
BLUE |
VIOLET |
10 |
Red |
GREY |
GREY |
Red |
22 |
VIOLET |
ORANGE |
ORANGE |
VIOLET |
11 |
Black |
BLUE |
BLUE |
Black |
23 |
VIOLET |
GREEN |
GREEN |
VIOLET |
12 |
Black |
ORANGE |
ORANGE |
Black |
24 |
VIOLET |
BROWN |
BROWN |
VIOLET |
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25 |
VIOLET |
GREY |
GREY |
VIOLET |
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In accordance with ICEA publication S-80-576-2002, the colour code is composed of ten (10) distinctive colours to identify 25 pairs. Marking of each mate of the
primary conductor in a pair with the colour of that primary conductor is optional.
When cables of larger than 25 pairs are required, the core shall be assembled into 25-pair sub-units, each colour coded in accordance with ICEA publication S-80-576. Cables with over 600 pairs shall have 25-pair binder groups combined into super units. These super units shall be wrapped with a solid colour thread that follows the primary colour scheme of white, red, black, yellow and violet. Binder colour code integrity shall be maintained wherever cables are spliced. |
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C) Colour Code According to IEC 60189-2, BT210B |
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Colour Scheme for Pairs & Triples |
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Cabling Element No. |
a-wire |
b-wire |
Cabling Element No. |
a-wire |
b-wire |
Cabling Element No. |
a-wire |
b-wire |
1 |
WHITE |
BLUE |
35 |
BLUE |
Black |
GREY |
69 |
GREEN |
Red |
BROWN |
2 |
WHITE |
ORANGE |
36 |
YELLOW |
BLUE |
BLUE |
70 |
GREEN |
Red |
GREY |
3 |
WHITE |
GREEN |
37 |
YELLOW |
BLUE |
ORANGE |
71 |
GREEN |
Black |
BLUE |
4 |
WHITE |
BROWN |
38 |
YELLOW |
BLUE |
GREEN |
72 |
GREEN |
Black |
ORANGE |
5 |
WHITE |
GREY |
39 |
YELLOW |
BLUE |
BROWN |
73 |
GREEN |
Black |
GREEN |
6 |
Red |
BLUE |
40 |
YELLOW |
BLUE |
GREY |
74 |
GREEN |
Black |
BROWN |
7 |
Red |
ORANGE |
41 |
WHITE |
ORANGE |
BLUE |
75 |
GREEN |
Black |
GREY |
8 |
Red |
GREEN |
42 |
WHITE |
ORANGE |
ORANGE |
76 |
YELLOW |
GREEN |
BLUE |
9 |
Red |
BROWN |
43 |
WHITE |
ORANGE |
GREEN |
77 |
YELLOW |
GREEN |
ORANGE |
10 |
Red |
GREY |
44 |
WHITE |
ORANGE |
BROWN |
78 |
YELLOW |
GREEN |
GREEN |
11 |
Black |
BLUE |
45 |
WHITE |
ORANGE |
GREY |
79 |
YELLOW |
GREEN |
BROWN |
12 |
Black |
ORANGE |
46 |
ORANGE |
Red |
BLUE |
80 |
YELLOW |
GREEN |
GREY |
13 |
Black |
GREEN |
47 |
ORANGE |
Red |
ORANGE |
81 |
WHITE |
BROWN |
BLUE |
14 |
Black |
BROWN |
48 |
ORANGE |
Red |
GREEN |
82 |
WHITE |
BROWN |
ORANGE |
15 |
Black |
GREY |
49 |
ORANGE |
Red |
BROWN |
83 |
WHITE |
BROWN |
GREEN |
16 |
YELLOW |
BLUE |
50 |
ORANGE |
Red |
GREY |
84 |
WHITE |
BROWN |
BROWN |
17 |
YELLOW |
ORANGE |
51 |
ORANGE |
Black |
BLUE |
85 |
WHITE |
BROWN |
GREY |
18 |
YELLOW |
GREEN |
52 |
ORANGE |
Black |
ORANGE |
86 |
Red |
BROWN |
BLUE |
19 |
YELLOW |
BROWN |
53 |
ORANGE |
Black |
GREEN |
87 |
Red |
BROWN |
ORANGE |
20 |
YELLOW |
GREY |
54 |
ORANGE |
Black |
BROWN |
88 |
Red |
BROWN |
GREEN |
21 |
WHITE |
BLUE |
BLUE |
55 |
ORANGE |
Black |
GREY |
89 |
Red |
BROWN |
BROWN |
22 |
WHITE |
BLUE |
ORANGE |
56 |
YELLOW |
ORANGE |
BLUE |
90 |
Red |
BROWN |
GREY |
23 |
WHITE |
BLUE |
GREEN |
57 |
YELLOW |
ORANGE |
ORANGE |
91 |
BROWN |
Black |
BLUE |
24 |
WHITE |
BLUE |
BROWN |
58 |
YELLOW |
ORANGE |
GREEN |
92 |
BROWN |
Black |
ORANGE |
25 |
WHITE |
BLUE |
GREY |
59 |
YELLOW |
ORANGE |
BROWN |
93 |
BROWN |
Black |
GREEN |
26 |
Red |
BLUE |
BLUE |
60 |
YELLOW |
ORANGE |
GREY |
94 |
BROWN |
Black |
BROWN |
27 |
Red |
BLUE |
ORANGE |
61 |
WHITE |
GREEN |
BLUE |
95 |
BROWN |
Black |
GREY |
28 |
Red |
BLUE |
GREEN |
62 |
WHITE |
GREEN |
ORANGE |
96 |
YELLOW |
BROWN |
BLUE |
29 |
Red |
BLUE |
BROWN |
63 |
WHITE |
GREEN |
GREEN |
97 |
YELLOW |
BROWN |
ORANGE |
30 |
Red |
BLUE |
GREY |
64 |
WHITE |
GREEN |
BROWN |
98 |
YELLOW |
BROWN |
GREEN |
31 |
BLUE |
Black |
BLUE |
65 |
WHITE |
GREEN |
GREY |
99 |
YELLOW |
BROWN |
BROWN |
32 |
BLUE |
Black |
ORANGE |
66 |
GREEN |
Red |
BLUE |
100 |
YELLOW |
BROWN |
GREY |
33 |
BLUE |
Black |
GREEN |
67 |
GREEN |
Red |
ORANGE |
101 |
WHITE |
GREY |
BLUE |
34 |
BLUE |
Black |
BROWN |
68 |
GREEN |
Red |
GREEN |
102 |
WHITE |
GREY |
ORANGE |
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Note 1: In each triple there shall be a c-wire, coloured TURQUOISE. |
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Note 2: Uppercase letters indicate the base, solid colour of insulation, and the lower case indicates ink bands applied onto the base colour. |
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Make-up & Unit Identification Colours – 20 Pair Unit |
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Pair Size |
Center |
1st Layer |
2nd Layer |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9-15 |
16 |
20Pair |
Number
of Unit |
1 |
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ORANGE |
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40Pair |
4 x ½ |
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ORANGE |
GREEN |
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80Pair |
1 |
6 x ½ |
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ORANGE |
ORANGE |
NATURL |
GREEN |
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160Pair |
4 x ½ |
6 |
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ORANGE |
GREEN |
ORANGE |
NATURL |
NATURL |
NATURL |
NATURL |
GREEN |
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320Pair |
1 |
5 |
10 |
ORANGE |
ORANGE |
NATURL |
NATURL |
NATURL |
GREEN |
ORANGE |
NATURL |
NATURL |
GREEN |
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Note 1: ½ refers to sub-units of 10 Pairs. |
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D) Colour Code & Cable Make Up According to CW 1171, CW 1224, CW 1236 |
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Colour Scheme for Pairs |
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Pair No. |
a-wire |
b-wire |
Pair No. |
a-wire |
b-wire |
1 |
WHITE |
BLUE |
13 |
Black |
GREEN |
2 |
WHITE |
ORANGE |
14 |
Black |
BROWN |
3 |
WHITE |
GREEN |
15 |
Black |
GREY |
4 |
WHITE |
BROWN |
16 |
YELLOW |
BLUE |
5 |
WHITE |
GREY |
17 |
YELLOW |
ORANGE |
6 |
Red |
BLUE |
18 |
YELLOW |
GREEN |
7 |
Red |
ORANGE |
19 |
YELLOW |
BROWN |
8 |
Red |
GREEN |
20 |
YELLOW |
GREY |
9 |
Red |
BROWN |
21 |
VIOLET |
BLUE |
10 |
Red |
GREY |
22 |
VIOLET |
ORANGE |
11 |
Black |
BLUE |
23 |
VIOLET |
GREEN |
12 |
Black |
ORANGE |
24 |
VIOLET |
BROWN |
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25 |
VIOLET |
GREY |
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Binder Colour Identification (Double & Quadruple Units) |
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Unit |
Position of Sub-unit or Unit |
First |
Second |
Third |
Fourth |
Double |
BLUE |
BLUE |
ORANGE |
ORANGE |
Quadruple |
BLUE |
ORANGE |
GREEN |
BROWN |
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Binder Colour Identification (Centre & Layers) |
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Position of Units |
First |
Intemediate |
Last |
Red |
NATURAL |
GREEN |
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Cable Size |
Nunber&Pair Sizes of Units in Centre and successive Layers |
No.of Pair in Spare Pair Unit |
No.of Unusable
Pairs Allowed |
Centre |
1st Layer |
2nd Layer |
3rd Layer |
50 |
1х50 |
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0 |
1 |
100 |
1х25
1х100 |
3х(12+13) |
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0 |
1 |
200 |
1х50
4х50 |
6х25 |
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4 |
2 |
300 |
1х50
1х100 |
5х50
8х25 |
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4 |
3 |
400 |
1х100 |
6х50 |
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4 |
3 |
500 |
3х50
1х100 |
7х50
8х50 |
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4 |
4 |
600 |
3х50
1х100 |
9х50
5х100 |
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4 |
4 |
800 |
1х50
4х50 |
5х50
6х100 |
10х50 |
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4 |
5 |
1000 |
4х50
3х100 |
8х100
7х100 |
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4 |
5 |
1200 |
3х100
4х100 |
9х100
8х100 |
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4 |
5 |
1600 |
1х100 |
5х100 |
10х100 |
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4 |
6 |
2000 |
4х50 |
6х100 |
12х100 |
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8 |
6 |
2400 |
3х100 |
8х100 |
13х100 |
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8 |
7 |
3200 |
1х100 |
5х100 |
10х100 |
16х100 |
8 |
7 |
4000 |
3х100 |
7х100 |
12х100 |
18х100 |
8 |
8 |
4800 |
4х100 |
9х100 |
15х100 |
20х100 |
8 |
8 |
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Note: Alternative make-ups are shown for some sizes and as a further alternative any cable can be made-up using 25 Pair Units throughout. |
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E) Colour Code & Cable Make Up According to DIN VDE 0815 & 0816 |
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DIN VDE 0815 for Installation Cables |
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1) VDE 0815 and VDE 0816 Unit Twisted |
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Colour Code for the following Installation Cable Types: |
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J-YY . . . Bd, J-HH . . . Bd , J-Y(St)Y . . . Bd , J-H(St)H . . . Bd and J-2Y(St)Y . . . Bd |
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Star-quad bundles |
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The insulating coverings of single cores of a star quad are marked with black rings. |
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The cores of 5 star quads of a sub unit are counted according to the sequence of basic colours: |
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Quad 1: basic colour of all cores red |
Quad 2: basic colour of all cores green |
Quad 3: basic colour of all cores grey |
Quad 4: basic colour of all cores yellow |
Quad 5: basic colour of all cores white |
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The marker of units are identified with a red helix, the others with white or uncoloured. |
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The quads of sub units are counted according to the sequence of basic colours. |
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The units are counted continuously through all layers beginning in the inner layer. |
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2) VDE 0815 |
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Colour Code for the following Installation Cable Types: |
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J-Y(St)Y . . . Lg |
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(Pairs in layers) |
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2-paired installation cables are stranded to a star quad |
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circuit 1 |
a-core red |
b-core black |
circuit 2 |
a-core white |
b-core yellow |
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4- and multi-paired installation cables |
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a-core of 1st pair in each layer is red, all other pairs are white. |
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b-core blue, yellow, green, brown, black in continual repetition. |
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Counting: from outside to inside. |
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3) VDE 0815 |
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Colour Code for the following Installation Cable Types: |
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JE-Y(St)Y . . . Bd, JE-LiYCY . . . Bd, JE-H(St) . . . and JE-HCH . . . Bd |
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(Industrial Electronic Cables) |
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Pair-colour-identification |
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The insulating cores are identified with different basic colours which are repeated in the same sequence in each unit. |
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Basic colours of pairs |
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Pair |
1 |
2 |
3 |
4 |
a-core |
BLUE |
GREY |
GREEN |
WHITE |
b-core |
Red |
YELLOW |
BROWN |
Black |
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2-paired cables: the cores are stranded to a star quad: |
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circuit 1: |
a-core blue |
b-core red |
circuit 2: |
a-core grey |
b-core yellow |
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Each unit is assigned to one group of ring. All cores in each unit are marked with coloured rings and ring-groups. |
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Counting direction in all units is from inside to outside. |
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Ring-colour and Ring-group |
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Unit-identification |
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Cables with more than 12 units contain coloured plastic helix in addition to ring code. |
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Unit-No |
Ring-
Colour |
Ring-Group |
Colour identification tape |
Unit-No |
Ring-
Colour |
Ring-Group |
Colour identification tape |
1 |
PINK |
Ⅰ |
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11 |
VIOLET |
Ⅲ |
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2 |
PINK |
Ⅱ |
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12 |
VIOLET |
IIII |
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3 |
PINK |
Ⅲ |
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13 |
PINK |
Ⅰ |
BLUE |
4 |
PINK |
IIII |
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14 |
PINK |
Ⅱ |
BLUE |
5 |
ORANGE |
Ⅰ |
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15 |
PINK |
Ⅲ |
BLUE |
6 |
ORANGE |
Ⅱ |
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16 |
PINK |
IIII |
BLUE |
7 |
ORANGE |
Ⅲ |
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17 |
ORANGE |
Ⅰ |
Red |
8 |
ORANGE |
IIII |
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18 |
ORANGE |
Ⅱ |
Red |
9 |
VIOLET |
Ⅰ |
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19 |
ORANGE |
Ⅲ |
Red |
10 |
VIOLET |
Ⅱ |
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20 |
ORANGE |
IIII |
Red |
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DIN VDE 0816 for Outdoor Telephone Cables |
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Colour Code for the following Outdoor Telephone Cable Types: |
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A-2Y(L)2Y...Bd and A-2YF(L)2Y...Bd |
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A-02Y(L)2Y...Bd, A-02YSF(L)2Y..Bd and A-02YF(L)2Y...Bd |
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The insulating coverings of single conductors of a quad are to be marked with black rings: |
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The insulating cores of five star quads of a sub-unit must have the following colours: |
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Quad No |
Colour of Conductor |
1 |
2 |
3 |
4 |
1 |
Red |
Red |
Red |
Red |
2 |
GREEN |
GREEN |
GREEN |
GREEN |
3 |
GREY |
GREY |
GREY |
GREY |
4 |
YELLOW |
YELLOW |
YELLOW |
YELLOW |
5 |
WHITE |
WHITE |
WHITE |
WHITE |
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The first sub- or main-unit in each layer is to be marked by an open helix of plastic tape of red (marker). All other sub- or main-units must be whipped with an open helix of white or uncoloured plastic tape. |
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The quads of a sub-unit are to be counted according to the sequence of basic colours. In cables with more than 5 star quads, the sub- and main-units must be counted continuously beginning with maker-unit at inner layer towards outside. |
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Design of a sub-unit: |
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Consist of 5 star quads = 10 pairs (DA)(DA = double core or pair) |
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Design of a main-unit: |
Design of a main-unit: |
Consist of 5 sub-units = 50 pairs (DA) |
Consist of 10 sub-units = 100 pairs(DA) |
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Design of a 300-pairs cable: |
Design of a 1500 pairs cable: |
Consist of 6 main-units, each of 50 pairs (DA) |
Consist of 15 main-units, each of 100 pairs (DA) |
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F) Colour Code & Cable Make Up According to IEC 60708-1 |
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Colour Scheme for Pairs |
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Pair No |
Colour of insulation |
Pair No |
Colour of insulation |
Cond.A |
Cond.B |
Cond.A |
Cond.B |
1 |
WHITE |
BLUE |
6 |
Red |
BLUE |
2 |
WHITE |
ORANGE |
7 |
Red |
ORANGE |
3 |
WHITE |
GREEN |
8 |
Red |
GREEN |
4 |
WHITE |
BROWN |
9 |
Red |
BROWN |
5 |
WHITE |
GREY |
10 |
Red |
GREY |
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Sub-unit of base (10pairs) |
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Identification of basic sub-units, construction of 50 and 100 pair units, and cable cores of up to 100 pairs |
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20 pairs |
30 pairs |
50 pairs |
70 pairs |
100 pairs |
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Identification of basic units and cable core constructions for cables of more than 100 pairs - Numbered units |
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150 pairs (3×50p) |
200 pairs (4×50p) |
300 pairs (6×50p) |
400 pairs (8×50p) |
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500 pairs (5×100p) |
600 pairs (6×100p) |
800 pairs (8×100p) |
900 pairs (9×100p) |
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1000 pairs (10×100p) |
1200 pairs (12×100p) |
1500 pairs (15×100p) |
1800 pairs (18×100p) |
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2100 pairs (21×100p) |
2400 pairs (24×100p) |
2700 pairs (27×100p) |
3000 pairs (30×100p) |
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G) Colour Code & Cable Make Up According to GR-421, ICEA S-85-625 & ICEA S-84-608 |
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Pair Identification Colours |
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For pairs numbering 1 through 25, the pair identification colours are outlined below. In cable constructions containing more than 25 pairs, the colours are
repeated as necessary. Colour coded binders are used to identify 25 pair groups of colour coded pairs. |
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Pair Number |
Tip Colour |
Ring Colour |
Pair Number |
Tip Colour |
Ring Colour |
1 |
WHITE |
BLUE |
13 |
Black |
GREEN |
2 |
WHITE |
ORANGE |
14 |
Black |
BROWN |
3 |
WHITE |
GREEN |
15 |
Black |
GREY |
4 |
WHITE |
BROWN |
16 |
YELLOW |
BLUE |
5 |
WHITE |
GREY |
17 |
YELLOW |
ORANGE |
6 |
Red |
BLUE |
18 |
YELLOW |
GREEN |
7 |
Red |
ORANGE |
19 |
YELLOW |
BROWN |
8 |
Red |
GREEN |
20 |
YELLOW |
GREY |
9 |
Red |
BROWN |
21 |
VIOLET |
BLUE |
10 |
Red |
GREY |
22 |
VIOLET |
ORANGE |
11 |
Black |
BLUE |
23 |
VIOLET |
GREEN |
12 |
Black |
ORANGE |
24 |
VIOLET |
BROWN |
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25 |
VIOLET |
GREY |
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Identification of Groups of Pairs |
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For cables through 600 pairs, 25 pair groups are identified by their binder colours in the same sequence as the pair identification is accomplished. Group 1
has White-Blue binders. Group 2 has White-Orange binders, etc. In this manner, each pair is uniquely identified. In cables having 25 pairs or less, binders are normally not used. However, if specified, the binders will be Group 1, White-Blue. For cables of 100 pairs or less, the use of the White binder is optional. |
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Group
Number |
Group Pair
Counts |
Colour of Binders |
Group
Number |
Group Pair
Counts |
Colour of Binders |
1 |
1-25 |
WHITE |
BLUE |
13 |
301-325 |
Black |
GREEN |
2 |
26-50 |
WHITE |
ORANGE |
14 |
326-350 |
Black |
BROWN |
3 |
51-75 |
WHITE |
GREEN |
15 |
351-375 |
Black |
GREY |
4 |
76-100 |
WHITE |
BROWN |
16 |
376-400 |
YELLOW |
BLUE |
5 |
101-125 |
WHITE |
GREY |
17 |
401-425 |
YELLOW |
ORANGE |
6 |
126-150 |
Red |
BLUE |
18 |
426-450 |
YELLOW |
GREEN |
7 |
151-175 |
Red |
ORANGE |
19 |
451-475 |
YELLOW |
BROWN |
8 |
176-200 |
Red |
GREEN |
20 |
476-500 |
YELLOW |
GREY |
9 |
201-225 |
Red |
BROWN |
21 |
501-525 |
VIOLET |
BLUE |
10 |
226-250 |
Red |
GREY |
22 |
526-550 |
VIOLET |
ORANGE |
11 |
251-275 |
Black |
BLUE |
23 |
551-575 |
VIOLET |
GREEN |
12 |
276-300 |
Black |
ORANGE |
24 |
576-600 |
VIOLET |
BROWN |
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Super-units Binder Identification Colours |
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It is desirable for manufacturing purposes to combine four 25 pair groups into “super units” when cables have 900 pairs or more. |
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Pair Number |
Group Number |
Binder Colour |
1-600 |
1-24 |
WHITE |
601-1200 |
25-48 |
Red |
1201-1800 |
49-72 |
Black |
1801-2400 |
73-96 |
YELLOW |
2401-3000 |
97-120 |
VIOLET |
3001-3600 |
121-144 |
BLUE |
3601-4200 |
145-168 |
ORANGE |
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Standard Telephone Cable |
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Various arrangements of pairs, units, groups, and super units are possible for standard non-screened telephone cables both filled and aircore. |
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The following constructions illustrate the lay-ups normally provided. Cables containing 1200 pairs or more are also available with mirror image core
constructions as shown. |
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Unit Assemblies (Units or U) |
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Group Assemblies (Group or G) |
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12 Pairs Unit U12 |
13 Pairs Unit U13 |
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25 Pairs Groups G25 |
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Super Units Assemblies (Super Units or SU) |
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50 Pairs SU50 |
75 Pairs SU75 |
100 Pairs SU100 |
6 Pairs |
12 Pairs |
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18 Pairs |
25 Pairs |
37 Pairs |
50 Pairs |
75 Pairs |
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100 Pairs |
150 Pairs |
200 Pairs |
300 Pairs |
300 Pairs |
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400 Pairs |
400 Pairs |
600 Pairs |
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600 Pairs |
900 Pairs |
900 Pairs |
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1200 Pairs |
1500 Pairs |
1800 Pairs |
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2100 Pairs |
2400 Pairs |
2700 Pairs |
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3000 Pairs |
3300 Pairs |
3600 Pairs |
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Mirror Image Core Lay-ups |
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Mirror image telephone cable core constructions are available in 1200 pair or more cable designs, all of which use 100 pair super units. |
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1200 Pairs |
1500 Pairs |
1800 Pairs |
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2100 Pairs |
2400 Pairs |
2700 Pairs |
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3000 Pairs |
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3800 Pairs |
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H) Colour Code According to BT CW 110J |
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Pair No. |
a-wire |
b-wire |
Pair No. |
a-wire |
b-wire |
Pair No. |
a-wire |
b-wire |
1 |
WHITE |
BLUE |
35 |
YELLOW |
WHITE |
GREEN |
69 |
VIOLET |
BROWN |
BLUE |
2 |
WHITE |
ORANGE |
36 |
YELLOW |
GREEN |
BROWN |
70 |
VIOLET |
GREY |
BLUE |
3 |
WHITE |
GREEN |
37 |
YELLOW |
GREY |
GREEN |
71 |
VIOLET |
WHITE |
ORANGE |
4 |
WHITE |
BROWN |
38 |
YELLOW |
WHITE |
BROWN |
72 |
VIOLET |
ORANGE |
GREEN |
5 |
WHITE |
GREY |
39 |
YELLOW |
GREY |
BROWN |
73 |
VIOLET |
ORANGE |
BROWN |
6 |
WHITE |
WHITE |
BLUE |
40 |
YELLOW |
WHITE |
GREY |
74 |
VIOLET |
GREY |
ORANGE |
7 |
WHITE |
ORANGE |
BLUE |
41 |
Black |
BLUE |
75 |
VIOLET |
WHITE |
GREEN |
8 |
WHITE |
GREEN |
BLUE |
42 |
Black |
ORANGE |
76 |
VIOLET |
GREEN |
BROWN |
9 |
WHITE |
BROWN |
BLUE |
43 |
Black |
GREEN |
77 |
VIOLET |
GREY |
GREEN |
10 |
WHITE |
GREY |
BLUE |
44 |
Black |
BROWN |
78 |
VIOLET |
WHITE |
BROWN |
11 |
WHITE |
WHITE |
ORANGE |
45 |
Black |
GREY |
79 |
VIOLET |
GREY |
BROWN |
12 |
WHITE |
ORANGE |
GREEN |
46 |
Black |
WHITE |
BLUE |
80 |
VIOLET |
WHITE |
GREY |
13 |
WHITE |
ORANGE |
BROWN |
47 |
Black |
ORANGE |
BLUE |
81 |
Red |
BLUE |
14 |
WHITE |
GREY |
ORANGE |
48 |
Black |
GREEN |
BLUE |
82 |
Red |
ORANGE |
15 |
WHITE |
WHITE |
GREEN |
49 |
Black |
BROWN |
BLUE |
83 |
Red |
GREEN |
16 |
WHITE |
GREEN |
BROWN |
50 |
Black |
GREY |
BLUE |
84 |
Red |
BROWN |
17 |
WHITE |
GREY |
GREEN |
51 |
Black |
WHITE |
ORANGE |
85 |
Red |
GREY |
18 |
WHITE |
WHITE |
BROWN |
52 |
Black |
ORANGE |
GREEN |
86 |
Red |
WHITE |
BLUE |
19 |
WHITE |
GREY |
BROWN |
53 |
Black |
ORANGE |
BROWN |
87 |
Red |
ORANGE |
BLUE |
20 |
WHITE |
WHITE |
GREY |
54 |
Black |
GREY |
ORANGE |
88 |
Red |
GREEN |
BLUE |
21 |
YELLOW |
BLUE |
55 |
Black |
WHITE |
GREEN |
89 |
Red |
BROWN |
BLUE |
22 |
YELLOW |
ORANGE |
56 |
Black |
GREEN |
BROWN |
90 |
Red |
GREY |
BLUE |
23 |
YELLOW |
GREEN |
57 |
Black |
GREY |
GREEN |
91 |
Red |
WHITE |
ORANGE |
24 |
YELLOW |
BROWN |
58 |
Black |
WHITE |
BROWN |
92 |
Red |
ORANGE |
GREEN |
25 |
YELLOW |
GREY |
59 |
Black |
GREY |
BROWN |
93 |
Red |
ORANGE |
BROWN |
26 |
YELLOW |
WHITE |
BLUE |
60 |
Black |
WHITE |
GREY |
94 |
Red |
GREY |
ORANGE |
27 |
YELLOW |
ORANGE |
BLUE |
61 |
VIOLET |
BLUE |
95 |
Red |
WHITE |
GREEN |
28 |
YELLOW |
GREEN |
BLUE |
62 |
VIOLET |
ORANGE |
96 |
Red |
GREEN |
BROWN |
29 |
YELLOW |
BROWN |
BLUE |
63 |
VIOLET |
GREEN |
97 |
Red |
GREY |
GREEN |
30 |
YELLOW |
GREY |
BLUE |
64 |
VIOLET |
BROWN |
98 |
Red |
WHITE |
BROWN |
31 |
YELLOW |
WHITE |
ORANGE |
65 |
VIOLET |
GREY |
99 |
Red |
GREY |
BROWN |
32 |
YELLOW |
ORANGE |
GREEN |
66 |
VIOLET |
WHITE |
BLUE |
100 |
Red |
WHITE |
GREY |
33 |
YELLOW |
ORANGE |
BROWN |
67 |
VIOLET |
ORANGE |
BLUE |
101 |
WH |
Red |
BLUE |
34 |
YELLOW |
GREY |
ORANGE |
68 |
VIOLET |
GREEN |
BLUE |
102 |
WH |
Red |
ORANGE |
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