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Figure 6.1.2 K12 equipotential bonding bar, Figure 6.1.3 R15 equipotential bonding bar, Figure 6.1.4 Earthing pipe clamp,
Part No. 563 200 Part No. 563 010 Part No. 407 114

K12 and R15 meet these requirements on an equipotential Testing and monitoring the equipotential bonding
bonding bar (Figures 6.1.2 and 6.1.3). system
Before the electrical consumer’s installation is commissioned,
This standard also includes requirements for testing the the connections must be tested to ensure their proper condi-
lightning current carrying capability of clamping points with tion and effectiveness.
2
cross-sections greater than 16 mm . The standard refers to Low-impedance continuity to the various installation parts
the test for lightning protection components described in in and to the equipotential bonding system is recommended.
IEC 62561-1 (EN 62561-1). A value of < 1 Ω is considered to be sufficient for the equipo-
If the requirements of the previously mentioned standard are tential bonding connections. In a continuity test according to
met, this component can also be used for lightning equipoten- IEC 60364-6 (HD 60364-6), test equipment with a test current
tial bonding in accordance with IEC 62305-1 to 4 (EN 62305-1 of 200 mA as per IEC 61557-4 (EN 61557-4) must be used.
to 4).
Supplementary protective equipotential bonding
Equipotential bonding connections If the disconnection conditions of the relevant system configu-
Equipotential bonding connections must provide good and ration cannot be met for an installation or a part thereof, a
permanent contact.
local supplementary protective equipotential bonding is re-
quired. The reason behind this is to interconnect all simulta-
Integrating pipes in the equipotential bonding
system neously accessible parts as well as the stationary equipment
In order to integrate pipes in the equipotential bonding sys- and to connect extraneous conductive parts to keep any touch
tem, earthing pipe clamps which correspond to the diameters voltage which may occur as low as possible.
of the pipes are used (Figure 6.1.4).

Stainless steel earthing pipe clamps with
tensioning straps, which can be uni-
versally adapted to the diameter of the
pipe, offer enormous installation benefits
(Figure 6.1.5).
These earthing pipe clamps can be used
to clamp pipes made of different materi-
als (e.g. steel, copper and stainless steel)
and also allow through-wiring.
Figure 6.1.6 shows the equipotential
bonding system of heating pipes with Figure 6.1.5 Earthing pipe clamp, Figure 6.1.6 Through-wired equipotential bonding bar
through-wiring. Part No. 540 910

www.dehn-international.com LIGHTNING PROTECTION GUIDE 179