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Earthing - Single-family house with external lighting protection

Whether existing or new buildings, a functioning earth-termination system is the prerequisite for the safe operation of electric systems in buildings and for protecting people from dangerous high voltages.

The design and implementation of the earth-termination system are of central importance. When implementing the earthing concept, e.g. in the form of a foundation earth electrode, changes are no longer possible after the concrete has set. Omissions or errors during the construction phase cannot be corrected later or, at least, not without a great deal of effort and expense.

Product recommendations

Earthing single family houses Ringerdung Hauptpotentialausgleich Fundamenterdung Erdeinführung

A - Foundation earthing

Round wire

Steel wire according to EN 62561-2 with zinc coating ≥ 50 µm average (about 350 g/m2), for lightning protection and earth-termination systems. 

Strip steel

Strip steel (St/tZn) according to EN 62561-2 with zinc coating ≥ 70 µm average (about 500 g/m2), for lightning protection and earth-termination systems.

Rebar clip

Connecting clamp tested according to EN 62561-1, for connecting reinforcement steel meshes or reinforcements to round conductors. The rebar clip allows safe, fast and easy connection of earthing materials to reinforcement parts without tools.

Rebar clip – Alternative

Connecting clamp tested according to EN 62561-1, for connecting reinforcement steel meshes or reinforcements to flat conductors. The rebar clip allows safe, fast and easy connection of earthing materials to reinforcement parts without tools.

U-clamp

U-clamp according to EN 62561-1, for connecting round and flat conductors in the concrete foundation or reinforcement steel meshes and reinforcing steels to flat and round conductors.

Connecting clamp

Connecting clamp (St/tZn) according to EN 62561-1, for connecting reinforcement steel meshes or reinforcements to round conductors. Version for T, cross and parallel connections.

Cross unit with intermediate plate for round and flat conductors

Cross unit according to EN 62561-1, for aboveground and underground connection of round and flat conductors. Version with intermediate plate and M8 screws.

Sealing collar

For bushings of watertight foundation slabs / walls (e.g. white tank). Water-pressure-tight version can be pushed on round conductors with stainless steel tensioning straps.
Water pressure test up to 1 bar with an installation depth of 10 m in stagnant water, additionally tested with 5 bar compressed air according to EN 62561-5.

Sealing collar

For bushings of watertight foundation slabs / walls (e.g. white tank). Water-pressure-tight version can be pushed on flat conductors with stainless steel tensioning straps. Water pressure test up to 1 bar with an installation depth of 10 m in stagnant water, additionally tested with 5 bar compressed air according to EN 62561-5.

B - Ring earth electrode

Round wire

Stainless steel wire (V4A), Ø10 mm according to EN 62561-2, for lightning protection systems, earth-termination systems or equipotential bonding.

Cross unit

Stainless steel cross unit (V4A), Rd 8-10 / Fl 30 mm according to EN 62561-1, for aboveground and underground connection of round and flat conductors. Version with intermediate plate and M8 screws.

Anti-corrosion tape

To be wrapped around aboveground and underground connections and for use in the soil according to DIN 30672. 

C - Main equipotential bonding

Fixed earthing terminal

Stainless steel fixed earthing terminal (V4A) according to EN 62561-1, for corrosion-free connection of the down conductor e.g. to the reinforcement of buildings or the earth-termination system, for protective equipotential bonding and / or functional equipotential bonding, installation in the formwork.

Equipotential bonding bar

Equipotential bonding bar K12 according to EN 62561-1, for protective and functional equipotential bonding according to EN 60364-4-41/EN 60364-5-54 (main earthing busbar) and lightning equipotential bonding according to EN 62305-3.

Connecting clamp with threaded bolt

For connecting round and flat conductors to fixed earthing terminals with M10 / 12 thread. Also suitable for installation on the reverse side of the fixed earthing terminal without terminal axis, e.g. for flat strips.

D - Earth entry

Terminal lug

Round wire Rd 10 mm (V4A) according to EN 62561-2 (terminal lug) made of corrosion-resistant stainless steel (V4A), for connecting down conductors to the earth-termination system.

UNI disconnecting clamp

UNI disconnecting clamp (StSt) according to EN 62561-1, for connecting the down conductor to the earth entry. Version without intermediate plate for two round conductors. 

Number plate

Number plate with embossed number for marking the test joint. Can be mounted on round / flat conductors.

Conductor holder

Conductor holder with slotted cleat, for fixing round conductors. Can be used for different materials, e.g. Al, StSt, St/tZn and Cu, fixed conductor routing. Version with female thread, premounted with screw, plastic base and dowel.

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