Conductors
By far the largest and most important component of any earthing or structural lightning protection system is the actual conductor.
Furse offer a comprehensive range of copper and aluminium conductors in each of the main world standard formats,
ie flat tape, solid circular and stranded.
Conductor colour chart
The choice of a lightning protection conductor is usually governed by its aesthetic impact on
the structure to be protected. For many people the term lightning conductor conjures up an
image of a bright green strip running down the spire of a church.This would clearly be
unacceptable to the owner / architect of a modern structure.
In order to reduce the impact of an external system Furse offer a range of UV stabilised
PVC covered tapes and solid circular conductors (only 10mm diameter) in colours chosen to
match common building materials
Black
18B29*
Green
BS 6746C
Grey
00A07*
Stone
08B23*
White
10B15*
Brown
06C39*
* PVC colours to BS 5252
Conductor ratings
For below ground earthing applications Furse produce a large range of bare copper, tape and stranded conductors thus offering the designer of the
system the correctly rated conductor without the need to oversize.
The following conductor ratings are based upon the recommendations of BS 7430 with an initial conductor temperature of 300C and a maximum
temperature of 2500C.
Conductor
size
12.5 x 1.5mm
12.5 x 3mm
20 x 1.5mm
20 x 3mm
25 x 1.5mm
25 x 3mm
25 x 4mm
25 x 6mm
30 x 2mm
30 x 3mm
30 x 4mm
30 x 5mm
31 x 3mm
31.5 x 4mm
kA for
1 sec
3.3
6.6
5.3
10.6
6.6
13.2
17.6
26.4
10.6
15.8
21.1
26.4
16.4
22.2
kA for
3 sec
1.9
3.8
3.0
6.1
3.8
7.6
10.2
15.2
6.1
9.1
12.2
15.2
9.5
12.8
Part no.
TC005
TC010
TC015
TC020
TC025
TC030
TC035
TC040
TC039
TC042
TC044
TC043
TC045
TC048
Conductor
size
31 x 6mm
38 x 3mm
38 x 5mm
38 x 6mm
40 x 3mm
40 x 4mm
40 x 5mm
40 x 6mm
40 x 6.3mm
50 x 3mm
50 x 4mm
50 x 5mm
50 x 6mm
50 x 6.3mm
C.S.A.
(mm2)
186
114
190
228
120
160
200
240
252
150
200
250
300
315
kA for
1 sec
32.7
20.1
33.4
40.1
21.1
28.2
35.2
42.2
44.4
26.4
35.2
44.0
52.8
55.4
kA for
Part no.
3 sec
18.9
TC050
11.6
TC055
19.3
TC060-FU
23.2
TC065
12.2
TC067
16.3
TC066
20.3
TC071
24.4
TC068
25.6
TC069
15.2
TC070
20.3
TC075
25.4
TC078
30.5
TC080
32.0
TC082
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TSCAT1a
Conductors
C.S.A.
(mm2)
18.75
37.5
30
60
37.5
75
100
150
60
90
120
150
93
126
Conductors
Bare copper tape
High conductivity copper tape to BS EN 13601 (formerly BS 1432)
Conductor
size
12.5 x 1.5mm
12.5 x 3mm
20 x 1.5mm
20 x 3mm
25 x 1.5mm
25 x 3mm
25 x 4mm
25 x 6mm
30 x 2mm
30 x 3mm
30 x 4mm
30 x 5mm
31 x 3mm
31.5 x 4mm
Weight
per metre
0.17kg
0.33kg
0.27kg
0.53kg
0.33kg
0.67kg
0.89kg
1.33kg
0.53kg
0.80kg
1.07kg
1.33kg
0.83kg
1.13kg
Standard Part no.
coil size
100m
TC005
100m
TC010
100m
TC015
100m
TC020
100m
TC025
50m
TC030
50m
TC035
40m
TC040
50m
TC039
50m
TC042
40m
TC044
40m
TC043
50m
TC045
40m
TC048
Conductor
size
31 x 6mm
38 x 3mm
38 x 5mm
38 x 6mm
40 x 3mm
40 x 4mm
40 x 5mm
40 x 6mm
40 x 6.3mm
50 x 3mm
50 x 4mm
50 x 5mm
50 x 6mm
50 x 6.3mm
Weight
per metre
1.65kg
1.01kg
1.69kg
1.45kg
1.06kg
2.03kg
1.78kg
2.16kg
2.24kg
1.33kg
1.78kg
2.22kg
2.68kg
2.80kg
Standard Part no.
coil size
30m
TC050
50m
TC055
30m
TC060-FU
25m
TC065
40m
TC067
30m
TC066
25m
TC071
25m
TC068
25m
TC069
40m
TC070
30m
TC075
20m
TC078
20m
TC080
20m
TC082
PVC covered copper tape
Conductor
size
Weight
Standard
per metre coil size
12.5 x 1.5mm
25 x 3mm
25 x 6mm
50 x 6mm
0.21kg
0.77kg
1.53kg
2.95kg
100m
50m
40m
20m
Black
18B29
TC100
TC105-FU
-
Green
*
TC110
TC140-FU
TC145
Colour range
Grey
Stone
00A07
08B23
TC115-FU TC120-FU
-
White
10B15
TC125-FU
-
Brown
06C39
TC130
-
PVC colours to BS 5252. * Green to BS 6746C.
Furse takes every precaution to ensure the UV stability of its PVC coverings, but as with all
plastics, colour variation will occur over time.
Other colours are available to order. Contact Furse for details.
LSOH covered copper tape
Conductor
size
25 x 3mm
25 x 6mm
50 x 6mm
Colour
Green
Green
Green
Weight
per metre
0.77kg
1.53kg
2.95kg
Standard Part no.
coil size
50m
TC910
40m
TC940
20m
TC980
PVC colours to BS 6746C.
BS EN 13601 (formerly BS 1432)
Green & yellow PVC insulated copper tape
Conductor
size
25 x 3mm
Weight
Standard Part no.
per metre coil size
0.79kg
50m
TC111-FU
TSCAT1a
PVC colours to BS 6746C.
BS EN 13601 (formerly BS 1432)
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Conductors
Lead covered copper tape
Conductors
Conductor
size
25 x 3mm
Weight
Standard Part no.
per metre coil size
2.56kg
50m
TC330
BS EN 13601 (formerly BS 1432)
Tinned copper tape
Conductor
size
12.5 x 1.5mm
25 x 3mm
30 x 2mm
25 x 6mm
31 x 3mm
38 x 5mm
50 x 6mm
Weight
per metre
0.17kg
0.67kg
0.53kg
1.33kg
0.83kg
1.69kg
2.68kg
Standard Part no.
coil size
100m
TC225-FU
50m
TC230
50m
TC239
40m
TC240
50m
TC245
30m
TC260
20m
TC280
Hard drawn copper bar
Bare hard drawn bar
Conductor
size
25 x 3mm
25 x 6mm
38 x 6mm
50 x 6mm
50 x 10mm
75 x 6mm
100 x 6mm
Tinned hard drawn bar
Weight
Part no.
per metre
0.67kg
BA205
1.33kg
BA210
2.03kg
BA225
2.67kg
BA230
4.45kg
BA235
4.00kg
BA240
5.38kg
BA250-FU
Conductor
size
50 x 6mm
Weight
per metre
2.67kg
Part no.
BA231
Supplied in maximum lengths
of 3 metres hard drawn high
conductivity copper bar to
BS 2874-C101/C103.
Flexible copper braid
Bare braid
Suitable for earth bonding.
Also supplied as standard pre-cut
and drilled bonds.
High conductivity copper wire
to BS 4109-C101.
Overall nominal
equivalent size
12 x 1mm
Size
Weight
Part no.
per metre
6mm2
15
19
32
25
10mm2
16mm2
70mm2
34.7mm2
0.055kg
0.096kg
0.16kg
0.63kg
0.34kg
x
x
x
x
1.5mm
2.5mm
6mm
3.5mm
BD020
BD025
BD026
BD027
BD030
Tinned braid
Other sizes and types of braid
can be made to order.
Please telephone for details.
Size
35mm2
Weight
Part no.
per metre
0.34kg
BD035
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TSCAT1a
Conductors
Overall nominal
equivalent size
25 x 3.5mm
Bare aluminium tape
Conductors
Aluminium tape to BS 2898 - 1350
Conductor
size
12.5 x 1.5mm
20 x 3mm
25 x 3mm
30 x 3mm
25 x 6mm
40 x 6mm
50 x 6mm
Weight
per metre
0.05kg
0.17kg
0.21kg
0.25kg
0.42kg
0.67kg
0.85kg
Standard Part no.
coil size
50m
TA005
50m
TA020
50m
TA030
50m
TA042
50m
TA040
50m
TA068
50m
TA080
PVC covered aluminium tape
Conductor
size
Weight
Standard
per metre coil size
12.5 x 1.5mm 0.09kg
20 x 3mm
0.25kg
25 x 3mm
0.30kg
50m
50m
50m
Black
18B29
TA100
TA104
TA105
Green
*
TA110
Colour
Grey
00A07
TA115
range
Stone
08B23
TA120
White
10B15
TA125
Brown
06C39
TA130
PVC colours to BS 5252. * Green to BS 6746C.
Furse takes every precaution to ensure the UV stability of its PVC coverings, but as with all
plastics, colour variation will occur over time.
Other colours are available to order. Please telephone for details.
Bare solid circular conductor
Conductor Diameter
material
Copper
8mm
Cross-sectional
area
50.27mm2
Weight
per metre
0.44kg
Standard
coil size
50m
Aluminium
50.27mm2
0.12kg
50m
8mm
Part no.
CD035
(to BS 1433-C101/C103)
CD080
(to BS 2898-1350)
BS EN 13601 (formerly BS 1433)
PVC covered solid circular conductor
Conductor Diameter
material
Cross-sectional
area
Weight
per metre
Standard
coil size
Copper
Aluminium
50.27mm2
50.27mm2
0.49kg
0.18kg
50m
50m
8mm
8mm
Black
18B29
CD036
CD081
Colour range
Grey
Stone
White
00A07
08B23
10B15
CD038 CD039 CD040
CD083 CD084 CD085
Brown
06C39
CD041
CD086
TSCAT1a
PVC colours to BS 5252.
Furse takes every precaution to ensure the UV stability of its PVC coverings, but as with all plastics, colour
variation will occur over time.
Other colours are available to order. Please telephone for details.
www.keison.co.uk
Conductors
Conductors
Anti-vandal down conductor guard
Length
3000mm
Weight each
2.90kg
Part no.
AV005
Recommended fixing - round head
woodscrew 1 1/2” x no.10 and wall
plug.
Bare stranded copper conductor
Soft drawn stranded copper conductor to BS 6360
Size
Stranding
no./mm Ø
Weight
Part no.
per metre
Size
Stranding
no./mm Ø
Weight
Part no.
per metre
6mm2
7/1.04
7/1.70
7/2.14
7/2.52
19/1.78
19/2.14
19/2.52
0.05kg
0.15kg
0.23kg
0.32kg
0.43kg
0.62kg
0.86kg
120mm2
150mm2
185mm2
240mm2
300mm2
400mm2
37/2.03
37/2.25
37/2.52
61/2.25
61/2.52
61/2.85
1.09kg
1.33kg
1.67kg
2.20kg
2.76kg
3.53kg
16mm2
25mm2
35mm2
50mm2
70mm2
95mm2
CB006
CB016
CB025
CB035
CB050-FU
CB070
CB095
CB120
CB150-FU
CB185
CB240
CB300-FU
CB400-FU
Hard drawn stranded copper conductor
to BS 7884
Size
70mm
Stranding
no./mm Ø
7/3.55
Weight
per metre
0.64kg
Part no.
Stranding
no./mm Ø
37/2.03
37/2.25
37/2.52
61/2.25
61/2.52
61/2.85
Weight
Part no.
per metre
1.16kg
CC120-FU
1.54kg
CC150-FU
2.01kg
CC185
2.49kg
CC240
3.05kg
CC300
3.90kg
CC400-FU
CB071
PVC covered stranded copper conductors
Size
16mm2
25mm2
35mm2
50mm2
70mm2
95mm2
Stranding
no./mm Ø
7/1.70
7/2.14
7/2.52
19/1.78
19/2.14
19/2.52
Weight
Part no.
per metre
0.19kg
CC016
0.29kg
CC025
0.41kg
CC035
0.53kg
CC050
0.73kg
CC070
1.00kg
CC095
Size
120mm2
150mm2
185mm2
240mm2
300mm2
400mm2
PVC colours to BS 6746C.
Green and yellow PVC covered soft drawn stranded copper conductor to BS 6004.
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TSCAT1a
Conductors