Certain ground conditions make difficult obtain reliable earth resistance, whilst particular installations may require very low resistance.
Used earth-electrode backfill reduce soil resistivity retaining moisture.
Part no. has the ability hold its moisture content for considerable period time and absorb moisture from the surrounding soil (e. ABB order code Description
Weight each
(kg)
Certification/
standards
CM035 7TCA083870R1818 FurseCEM® 25.00
CM050 7TCA083870R2020 FurseCEM® Low Density Premix* 25.G.L
Backfill
Earth rod
Diameter
of borehole
Depth of
borehole
F. adding FurseCEM® place sand and aggregate, cement, conductive concrete formed. such cases, FurseCEM® provides
a convenient and permanent solution.—
Earth electrodes
Backfill materials
—
FurseCEM® conductive aggregate
—
Bentonite moisture retaining clay
Part no.00
*Conductive earthing mix supplied with cement
80 FURSE® EARTHING LIGHTNING PROTECTION
QUALIT SOLUTIONS FOR SAFEGUARDING PEOPLE, STRUCTURES AND SERVICES
—
Trench Procedure
—
Trench Procedure
—
Borehole Procedure
—
Borehole Procedure
F.L
Compacted fill
Backfill
Earth strip/plate
Depth of
cover
Width cover
F.00
CM045 7TCA083870R2019 FurseCEM® Low Density 25.L
Backfill
Earth rod
Diameter
of borehole
Depth of
borehole
.00
CM020 7TCA083870R0032 Bentonite granules 25.G. from rainfall). The clay sodium activated montmorillonite, which when mixed with water swells many
times its dry volume.
When used backfill for earth electrodes, FurseCEM® impregnated concrete greatly increases the electrode’s surface area thus lowering its resistance earth.
For further information FurseCEM®, please contact the Furse sales office. This electrically conductive medium has
many applications the electrical/construction industry, including and microwave screening, static control and, course, earthing, for which was specifically developed.L
Compacted fill
Backfill
Earth strip/plate
Depth of
cover
Width cover
F.g.
CoSHH datasheet available request.G.00
CM040 7TCA083870R1819 FurseCEM® Premix* 25.00
Certification Standards: IEC/BS 62561-7. ABB order code Description
Weight each
(kg)
CM015 7TCA083870R0030 Bentonite powder 25.G
