Building Wires - Flat Twin

Application:

Easy-tear sheath for general wiring, unenclosed, closed in conduit buried direct or in underground ducts for domestic, commercial and industrial installations where not subject to mechanical damage.

Conductor:

Plain annealed copper (AS/NZS 1125)

Insulation:

PVC V90

Sheath:

3V-90 Easy-tear White

Voltage:

450/750 V

Standard:

AS/NZS 5000.2

Packing Length:

100m, 500m

Normal Operating Temperature:

75°C

Core Colours: Twin & Twin Active - Red & Black or Red White (Twin Active)
BSI Logo Other types and/or other lengths of the above cables can be manufactured in accordance with customer's request and requirements of relevant standards.

Typical Features

Electra Cables
Part No.

Stranding
No./mm

Insulation
Thick
mm

Sheath
Thickness
mm

Nom.
O/D
mm

Min. Installed
Bending Radius mm

Approx.
Mass
Kg/Km

Order
Now

Minor

Major

SRF2010V

2x1/1.13

0.6

0.9

6.6x4.2

20

30

55

 

SRF2010AV

2x1/1.13 Active

0.6

0.9

6.6x4.2

20

30

55

 

SRF2015V

2x7/0.50

0.6

0.9

7.4x4.7

20

30

80

 

SRF2015AV

2x7/0.50 Active

0.6

0.9

7.4x4.7

20

30

80

 

SRF2025V

2x7/0.67

0.7

1

9.0x5.6

25

40

125

 

SRF2025AV

2x7/0.67 Active

0.7

1

9.0x5.6

25

40

125

 

SRF2040V

2x7/0.85

0.8

1.1

10.7x6.6

30

45

155

 

SRF2040AV

2x7/0.85 Active

0.8

1.1

10.7x6.6

30

45

155

 

SRF2060V

2x7/1.04

0.8

1.1

11.8x7.2

30

50

215

 

SRF2060AV

2x7/1.04 Active

0.8

1.1

11.8x7.2

30

50

215

 

SRF2100V

2x7/1.35

1

1.2

14.7x8.6

35

60

330

 

SRF2100AV

2x7/1.35 Active

1

1.2

14.7x8.6

35

60

330

 

SRF2160V

2x7/1.35

1

1.2

17.7x9.9

40

70

470

 

Current Rating and Electrical Characteristics

ConductorCurrent Rating (a)Electrical Characteristics
Nominal
Area2
Unenclosed Touching Surrounded
by thermal
Insulation
Buried
in
Ducts
Maximum DC Resistance @
20°C ©/Km
Maximum AC
Resistance @
20°C ©/Km
Resistance ©/Km (b) 3 Phase Voltage
Drop Touching
@90°C mV/A.m
1 12 6 15 18.1 25.8 0.119 44.7
1.5 15 8 19 13.6 16.5 0.111 28.6
2.5 22 11 26 7.41 9.01 0.102 15.6
4 29 15 34 4.61 5.61 0.102 9.71
6 37 19 43 3.08 3.75 0.0967 6.49
10 51 25 57 1.83 2.23 0.0906 3.86
16 68 34 74 1.15 1.4 0.0861 2.43

(a)

Based on 40°C ambient air temperature and where applicable, burial depth of 0.5m, soil temperature of 25°C and soil resistivity of 1.2°C m/W.

(b)

For single phase voltage drop, multiply by 1.155

 

The above information is from the following sources: AS/NZ 3008.1.1 and

 

AS/NZ 3008.1.1
AS/NZS 1125 For current rating using other installation conditions refer to AS/NZS3008.1.1

 

Do not install in direct contact with polystyrene or polyurethane insulation materials