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Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:

enquiry@furse.com

• Web:

www.furse.com

Product selector

Lightning protection

Earth termination network

The means of dissipating the current to the general

mass of earth.

Earth electrodes

Choose an earth electrode to suit

the system design i.e. Type A, Type

B or foundation electrode.

Electrodes can be constructed

individually from earth rods, earth

plates, flat tape, stranded cable or

any combination of these.

Earth rod clamps

Select a high copper content alloy

earth rod clamp for the connection

of the earthing conductor to the

earth rod. In this below ground

application, the clamp must ensure

a good electrical contact and resist

corrosion throughout the lifetime

of the installation.

Earth inspection pits

Select an earth inspection pit to

protect the earth electrode

connections. High strength pits are

available in plastic and concrete.

Equipotential bonding

Bonding is the most commonly employed method of

avoiding the damaging effects of side flashing. All

continuous metalwork should be considered for

bonding. All metallic services, e.g. cable armouring,

gas, water or steam piping, entering the building

should also be bonded as directly as possible to the

earth termination network.

Bonds to metalwork

Select the correct type of

metalwork bond for the

application, i.e. a flat column

face, a circular rainwater pipe or

a ribbed reinforcing bar.

Equipotential bonding SPDs

Designed to prevent dangerous

sparking caused by flashover,

lightning current or equipotential

bonding SPDs

must

be fitted to

all metallic service lines with ‘live

cores’ entering or leaving the

structure.

Product selector

(1) Conductors

p26-39

(2) Conductor fixings

p50-74

(3) Air terminals

p40-49

(4) Air rod bases

p42-44, 49

(5) Conductor jointing clamps

p64-67

(6) Test clamps

p67-69

(7) Crossover conductor clamp

p64

(8) Earth electrodes

p81-84, 88

(9) Earth rod clamps

p92-94

(10) Earth inspection pits

p87

(11) Bonds

p92-106

(12) Lightning current or

Equipotential bonding SPDs

p182-195

This illustration is designed to demonstrate the main aspects and

individual components of an external lightning protection system.

It is not intended to represent an actual scheme conforming to a

particular code of practice. The drawing is not to scale.