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House Wiring Cables



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As Per Indian Standard IS:1554 (part -1)-1988

CONSTRUCTION


Conductor

Copper conductors are made from high conductivity Copper rods of 8 mm diameter. The rod is drawn to required sizes for the construction of conductors of different areas of cross section conforming to IS:8130-1984. Conductors for Power cables with cross sectional area have following configuration.Conductors are either solid circular or stranded circular (non-compact) conforming to Table 1Class 1 or Table 2 Class 2 of IS:8130-1984.



Insulation

PVC Compound is insulated over conductor by extrusion process with required thickness of insulation and conforms to IS: 1554 (Part-1)-1988 specification for PVC insulated heavy duty cables.

PVC insulation, is either of general purpose 'type A' PVC compound, suitable for a maximum continuous conductor operating temperature of 70°C, or of Heat resistant 'type C' PVC Compound, suitable for a maximum continuous conductor operating temperature of 85°C conforming to requirements of IS:5831-1984. Special types of PVC insulation suitable for 105°C and FR / FRLS sheath can also be offered against customer requirement.



No.of Cores Identification
2 Red and Black
3 Red, Yellow and Blue
4 Red, Yellow, Blue and Black
5 Red, Yellow, Blue, Black and Grey
6 and Above 2 adjacent cores in each layer Blue and Yellow, remaining cores Grey

Laying up

Cores are laid up with right hand lay in the outermost layer in the sequence of above core colours. Interstices, if necessary, are covered with non hygroscopic fillers and covered with a binder tape for compactness and to maintain reasonably round shape.

Multi-core cables having more than 7 cores have the opposite direction of lay to that of the final layer of cores.


Inner sheath

All multi-core cables have either extruded PVC inner sheath or thermoplastic wrapped inner sheath, which is compatible to insulation material and removable without any damage to insulation.


Armouring

Multi-core armoured cables have either single layer of Galvanized Steel wire Armour or Galvanised steel formed wire (earlier steel strip) applied over inner sheath with left hand lay. Galvanised steel wires and / or formed wires (earlier called strip) conform to IS:3975-1998.


Outer sheath

For Cables with general purpose PVC insulation, Sheaths are extruded with Black PVC compound of type ST1 and for cables with heat resistant PVC insulation, sheaths are extruded with Black PVC compound of Type ST2 conforming to the requirements of IS:5831-1984.

PVC outer sheath with improved fire performance as per Category C1 and C2 are available against specific requirement. Outer sheath is embossed / marked with informations required by the relevant standard / customer requirement.


Packing, storage and handling

Cables for power supplies and control panel wirings are always packed in appropriate sizes of strong and seasoned wooden drums designed to withstand long distance transit and preservation in stores. Control cables of all sizes are packed in standard lengths of 500 metre 5%

It is advised that drums are always to be stored in concrete floors to avoid sinking in mud and damages or deterioration of drum flanges and shall not be stored on its flanges horizontal to ground. Drums are designed for easy handling when transported by cranes or mounted on cable drum wheels for laying. Cables in drums shall be stored away from boilers and furnaces.


Customer orientation

Against specific requirement and application, Q-FLX wires & Cables . can offer cables conforming to either customer specification or other National and International Standards.



1.5 sq.mm PVC - Insulated and PVC - Sheathed unarmoured (YY) Multi-core control cable with copper conductor for working voltages upto & including 1100 V to IS:1554 (Part 1) - 1988



No.of Cores Nominal Thickness of Insulation Minimum Thickness of Inner Sheath Nominal Thickness of Outer Sheath Approx Overall Diameter Approx Weight Maximum Conductor Resistance at 20° c Current Rating Short Circuit Rating for One Second Standard Packing
In Air In Ground
GP PVC HR PVC GP PVC HR PVC
No mm mm mm mm kg/km Ohm/km A A A A kA m
2 0.8 0.3 1.8 10.2 195 12.1 20 24 23 27 0.173 500±5%
3 0.8 0.3 1.8 10.7 220 12.1 17 21 21 24 0.173 500±5%
4 0.8 0.3 1.8 11.5 225 12.1 17 21 21 24 0.173 500±5%
5 0.8 0.3 1.8 12.3 287 12.1 14 17 17 19 0.173 500±5%
6 0.8 0.3 1.8 13.2 324 12.1 13 16 15 18 0.173 500±5%
7 0.8 0.3 1.8 13.2 347 12.1 12 15 14 17 0.173 500±5%
8 0.8 0.3 1.8 14.6 403 12.1 12 14 14 16 0.173 500±5%
9 0.8 0.3 1.8 15.6 458 12.1 12 14 14 16 0.173 500±5%
10 0.8 0.3 1.8 16.2 463 12.1 11 13 13 15 0.173 500±5%
12 0.8 0.3 1.8 17.2 520 12.1 10 12 12 14 0.173 500±5%
14 0.8 0.3 1.8 17.4 578 12.1 10 12 11 13 0.173 500±5%
16 0.8 0.3 1.8 18.3 640 12.1 9 11 11 12 0.173 500±5%
19 0.8 0.3 2.0 19.6 744 12.1 9 10 10 12 0.173 500±5%
24 0.8 0.3 2.0 22.6 911 12.1 8 10 9 11 0.173 500±5%
27 0.8 0.3 2.0 23.1 990 12.1 8 9 9 10 0.173 500±5%
30 0.8 0.3 2.0 24.8 1074 12.1 7 9 9 10 0.173 500±5%
37 0.8 0.3 2.0 25.6 1270 12.1 7 8 8 9 0.173 500±5%


2.5 sq.mm PVC - Insulated and PVC - Sheathed unarmoured (YY) Multi-core control cable with copper conductor for working voltages upto & including 1100 V to IS:1554 (Part 1) - 1988



No.of Cores Nominal Thickness of Insulation Minimum Thickness of Inner Sheath Minimum Thickness of Outer Sheath Nominal Armour Dimension Approx Overall Diameter Approx Weight Maximum Conductor Resistance at 20° c Current Rating Short Circuit Rating for One Second Standard Packing
In Air In Ground
GP PVC HR PVC GP PVC HR PVC
No mm mm mm mm mm kg/km Ohm/km A A A A kA m
2 0.9 0.3 1.24 1.4 13.1 511 7.41 27 32 32 37 0.288 500±5%
3 0.9 0.3 1.24 1.4 13.7 563 7.41 24 29 27 31 0.288 500±5%
4 0.9 0.3 1.24 1.4 14.6 635 7.41 24 29 27 31 0.288 500±5%
5 0.9 0.3 1.24 1.4 15.6 711 7.41 19 23 23 27 0.288 500±5%
6 0.9 0.3 1.24 1.4 16.7 806 7.41 18 21 21 25 0.288 500±5%
7 0.9 0.3 1.24 1.4 16.7 825 7.41 17 20 20 23 0.288 500±5%
8 0.9 0.3 1.40 1.4 18.6 963 7.41 16 19 19 22 0.288 500±5%
9 0.9 0.3 1.40 4×0.8 18.7 926 7.41 16 19 19 22 0.288 500±5%
10 0.9 0.3 1.40 4×0.8 19.4 952 7.41 15 18 18 20 0.288 500±5%
12 0.9 0.3 1.40 4×0.8 20.0 1047 7.41 14 17 17 19 0.288 500±5%
14 0.9 0.3 1.40 4×0.8 20.9 1173 7.41 13 16 16 18 0.288 500±5%
16 0.9 0.3 1.40 4×0.8 21.9 1283 7.41 12 15 15 17 0.288 500±5%
19 0.9 0.3 1.40 4×0.8 23.0 1430 7.41 12 14 14 16 0.288 500±5%
24 0.9 0.3 1.40 4×0.8 26.6 1738 7.41 11 13 13 15 0.288 500±5%
27 0.9 0.3 1.40 4×0.8 27.1 1868 7.41 10 12 12 14 0.288 500±5%
30 0.9 0.3 1.56 4×0.8 28.4 2038 7.41 10 12 12 13 0.288 500±5%
37 0.9 0.4 1.56 4×0.8 30.7 2389 7.41 9 11 11 13 0.288 500±5%


Per Indian Standard IS:1554 (part -1)-1988
CONSTRUCTION


Conductor

Copper conductors are made from high conductivity Copper rods of 8 mm diameter. The rod is drawn to required sizes for the construction of conductors to different areas of cross section conforming to BS 6360.

Conductors for Control cables with cross sectional areas 1.5 and 2.5 sq.mm are either solid circular or stranded circular (non-compact) conforming to Table 1 Class 1 or Table 2 Class 2 of BS 6360

Conductor for auxiliary (Control) cables with cross sectional area 4 sq.mm are either solid circular or stranded circular (non-compact) conforming to Table 1 Class 1 or Table 2 Class 2 of BS 6360


Insulation

Q-FLX Brand PVC compound is insulated over conductor by extrusion process with required thickness of insulation and conforms to BS 6346:1989.PVC insulation is of type TI 1 PVC compound conforming to BS 6746:1990, suitable for a continious conductor operating temperature not exceeding 70°C



No.of Cores Identification
1 Red and Black
2 Red and Black
3 Red, Yellow and Blue
4 Red, Yellow, Blue and Black
Control and Auxiliary cables of 5 core and upwards By numbers

Laying up

Cores are laid up with right hand lay in the outermost layer in the sequence of above core colours or numbers. Interstices, if necessarily agreed, are covered with non hygroscopic fillers and covered with a binder tape for compactness and to maintain reasonably round shape.


Bedding

Control / Auxillary cables have extruded bedding. Which is compatible to insulation material and removable without any damage to insulation.


Armouring

Control / Auxillary cables have extruded bedding. Which is compatible to insulation material and removable without any damage to insulation.


Outer sheath

Sheaths are extruded with Black PVC compound of type TM 1 and comply with the requirements of BS 6746:1990. When specified anti termite properties can be provided on the sheath. Overseath with Special flame retardant charactorstics can be supplied on request.


Packing, storage and handling

Cables for control panel wirings are always packed in appropriate sizes of strong and seasoned wooden drums designed to withstand long distance transit and preservation in stores.

Control / Auxiliary cables are packed in standard lengths of 500 metre ± 5%. It is advised that drums are always to be stored in concrete floors to avoid sinking in mud and damages or deterioration of drum flanges and shall not be stored on its flanges horizontal to ground. Drums are designed for easy handling when transported by cranes or mounted on cable drum wheels for laying. Cables in drums shall be stored away from boilers and furnaces.


Customer orientation

Against specific requirement and application, Q-FLX Wires & Cables . can offer cables conforming to either customer specification or other International Standards.


Current ratings

Current ratings of cables installed in air and around buildings reference should be made to’ Regulations for electrical installations' (IEE Wiring Regulations), 15th Edition and the current ratings of cables installed in other situations reference should be made to 'Current rating standards for distribution cables', ERA 69-30:Part Ill.


Minimum installation radius

Circular copper conductors, unarmoured

  •   Upto 10 mm overall diameter = 3D
  •   Above 10 mm and upto 25 mm overall diameter = 4D
  •   Above 25 mm overall diameter = 6D

Circular copper conductor, armoured

  •   Any overall diameter = 6D

Conditions of laying

1. Continuous operating temperature of conductor 70° C

2. Ambient Temperature 50° C

3. Ground Temperature 35°C

4. Depth of laying in ground 0.5 m

5.Thermal resistivity of ground 120° C cm/W



1.5 sq.mm PVC insulated and PVC sheathed Unarmoured auxiliary (control)cable with solid / straned copper conductor 600 / 1000 V to BS 6346:1989



No.of Cores Thickness of Insulation Thickness of over sheath Approx Overall Diameter Approx Cable Weight Maximum Conductor Resistance at 20° c Standard Packing
Solid Stranded Solid Stranded Solid Stranded
No mm mm mm mm mm kg/km kg/km Ohm/km m
5 0.6 1.8 1.8 12.0 12.3 210 215 12.1 500±5%
6 0.6 1.8 1.8 12.2 12.8 235 245 12.1 500±5%
7 0.6 1.8 1.8 12.2 12.8 245 265 12.1 500±5%
8 0.6 1.8 1.8 13.4 14.2 280 320 12.1 500±5%
9 0.6 1.8 1.8 13.6 15.6 300 350 12.1 500±5%
10 0.6 1.8 1.8 13.6 15.6 315 375 12.1 500±5%
12 0.6 1.8 1.8 15.6 16.3 380 420 12.1 500±5%
14 0.6 1.8 1.8 15.8 17.1 420 470 12.1 500±5%
15 0.6 1.8 1.8 16.9 17.9 460 510 12.1 500±5%
16 0.6 1.8 1.8 16.9 17.9 480 540 12.1 500±5%
18 0.6 1.8 1.8 17.7 18.8 515 590 12.1 500±5%
19 0.6 1.8 1.8 17.7 18.8 550 605 12.1 500±5%
20 0.6 1.8 1.8 18.6 19.8 580 650 12.1 500±5%
21 0.6 1.8 1.8 18.6 19.8 590 660 12.1 500±5%
22 0.6 1.8 1.8 18.8 20.8 610 700 12.1 500±5%
24 0.6 1.8 1.8 19.0 21.8 650 750 12.1 500±5%
27 0.6 1.8 1.8 19.9 22.3 730 820 12.1 500±5%
30 0.6 1.8 1.8 21.5 23.0 820 890 12.1 500±5%
36 0.6 1.8 1.8 23.7 24.7 980 1050 12.1 500±5%
37 0.6 1.8 1.8 23.7 27.7 1000 1080 12.1 500±5%


2.5 sq.mm PVC insulated and PVC sheathed unarmoured auxiliary (control)cable with solid / straned copper conductor 600 / 1000 V to BS 6346:1989



No.of Cores Thickness of Insulation Thickness of over sheath Approx Overall Diameter Approx Cable Weight Maximun Conductor Resistance at 20° c Standard Packing
Solid Stranded Solid Stranded Solid Stranded
No mm mm mm mm mm kg/km kg/km Ohm/km m
5 0.7 1.8 1.8 13.0 13.8 270 290 7.41 500±5%
6 0.7 1.8 1.8 14.0 14.8 315 340 7.41 500±5%
7 0.7 1.8 1.8 14.0 14.8 345 375 7.41 500±5%
8 0.7 1.8 1.8 15.1 15.8 400 425 7.41 500±5%
9 0.7 1.8 1.8 16.0 17.0 435 465 7.41 500±5%
10 0.7 1.8 1.8 16.0 17.0 470 510 7.41 500±5%
12 0.7 1.8 1.8 17.6 18.5 550 590 7.41 500±5%
14 0.7 1.8 1.8 18.0 19.2 645 665 7.41 500±5%
15 0.7 1.8 1.8 19.7 20.8 660 720 7.41 500±5%
16 0.7 1.8 1.8 19.7 20.8 695 750 7.41 500±5%
18 0.7 1.8 1.8 20.7 21.8 770 830 7.41 500±5%
19 0.7 1.8 1.8 20.8 22.0 810 870 7.41 500±5%
20 0.7 1.8 1.8 21.7 22.6 850 920 7.41 500±5%
21 0.7 1.8 1.8 21.7 22.6 880 945 7.41 500±5%
22 0.7 1.8 1.8 23.0 23.8 925 985 7.41 500±5%
24 0.7 1.8 1.8 23.2 24.1 1000 1060 7.41 500±5%
27 0.7 1.8 1.8 23.8 24.9 1010 1155 7.41 500±5%
30 0.7 1.8 1.8 25.4 26.4 1210 1290 7.41 500±5%
36 0.7 1.8 1.8 26.6 28.1 1400 1500 7.41 500±5%
37 0.7 1.8 1.8 26.6 28.1 1435 1560 7.41 500±5%


4 sq.mm PVC insulated and PVC sheathed unarmoured auxiliary (control)cable with straned copper conductor 600 / 1000 V to BS 6346:1989



No.of Cores Thickness of Insulation Thickness of over sheath Approx Overall Diameter Approx Cable Weight Maximun Conductor Resistance at 20° c Standard Packing
No mm mm mm kg/km Ohm/km m
5 0.8 1.8 15.1 390 4.61 500±5%
6 0.8 1.8 16.4 455 4.61 500±5%
7 0.8 1.8 16.4 510 4.61 500±5%
8 0.8 1.8 18.3 590 4.61 500±5%
9 0.8 1.8 19.8 650 4.61 500±5%
10 0.8 1.8 20.6 710 4.61 500±5%
12 0.8 1.8 21.3 815 4.61 500±5%
14 0.8 1.8 22.4 925 4.61 500±5%
15 0.8 1.8 23.6 980 4.61 500±5%
16 0.8 1.8 23.6 1050 4.61 500±5%
18 0.8 1.8 24.9 1155 4.61 500±5%
19 0.8 1.8 24.9 1200 4.61 500±5%
20 0.8 1.8 24.9 1290 4.61 500±5%
21 0.8 1.8 24.9 1330 4.61 500±5%
22 0.8 1.8 27.5 1390 4.61 500±5%
24 0.8 1.8 28.9 1490 4.61 500±5%
27 0.8 1.8 29.6 1660 4.61 500±5%
30 0.8 1.9 30.9 1840 4.61 500±5%
36 0.8 2.0 33.6 2190 4.61 500±5%
37 0.8 2.0 33.6 2240 4.61 500±5%




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