EARTH WIRES

Earth Wires are used for grounding operation in electrical distribution network. The main reason for its usage is ‘Safety’.
In a wiring installation, the earth wire is used to create an electrical connection to earth, that provides an alternative path to the ground for heavy currents. For low resistance the metallic parts in the electrical equipment are grounded. If a fault occurs in an electrical system, earth wires help stop electricity that might otherwise flow through human body as electric shock.

Earth wires are made from stranded galvanised high carbon steel wires. They comprise of 3 to7 strands of such wires. All steel strands are smooth, uniform and free from inperfections such as die-marks, scratches, abrasion and/cents after drawing and also after standing. The material is then suitably packed before dispatch on wooden drum as per customer’s requirement.

 

STAY WIRES

Stay Wires are galvanized steel wire strands that are used for sustaining mechanical load. Generally they are made up of 6 wires stranded around 1 wire, twisting 7 wires together. A common use for stay wires is in the electricity industry, using the wire to stay power poles and tower structures. Stay wire is made in compliance with BS 183 or other customer specified specifications. It can be supplied in coils/ drums as per requirement.

 

 

 

SPECIFICATION

SIZE RANGE

6.30mm to 1.60mm diameter

COATING RANGE

Zinc coated – light, medium and heavy
(reference specification – BS:443)

Tensile Strength range

45Kgs/ sq.mm to 180 Kgs / sq.mm

Specification

As per BS 183 / IS 12776

 

CHART


Construction
Number of wires/ wire diameter

Approximate
strand diameter

mm

Stay Wire
Grade 700

KN

Earth Wire
Grade 1150

KN

Approximate Mass


Kg/1000m

3/1.80

3.9

X

x

60

3/2.65

5.7

x

x

130

3/3.25

7.0

x

x

195

3/4.00

8.6

x

x

295

7/1.80

5.4

12.45

20.50

140

7/2.00

6.0

15.40

25.30

170

7/2.36

7.1

21.40

35.20

240

7/2.65

8.0

27.00

44.40

300

7/3.00

9.0

34.65

56.90

392

7/3.15

9.5

38.20

62.75

430

7/3.25

9.8

40.65

66.80

460

7/3.65

11.0

51.25

84.20

570

7/4.00

12.0

61.50

101.0

690

7/4.25

12.8

69.50

114.0

780