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LIGHTNING PROTECTION SYSTEMS

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Lightning Protection Solutions

  • Team of experienced engineers
  • Engineered designs to meet client specifications
  • Risk assessment complying to latest standards

Soil Resistivity Surveys

  • Experienced surveyors
  • Key to creating effective earthing system
  • Multiple readings taken to ensure safe and accurate designs

Analysis & Earthing Design

  • Latest CDEGS software to optimize designs
  • Range of detailed reports to clients requirements

Earth Resistance Testing

  • Verification of earthing design through measurement
  • Experienced team of engineers with full understanding of electrode testing
  • 1
    Structural Lightning Protection
  • 2
    Electronic Systems Protection
  • 3
    Earthing

LIGHTNING PROTECTION SYSTEMS-

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From Furse air termination systems including air rods and strike plates to capture lightning strikes, through to our comprehensive range of down conductors and lightning protection components which channel lightning energy safely to a Furse earth termination network. Some of the common lightning components:

  • Air Termination Systems

  • Lightning Protection Conductors

  • Lightning Conductor clips, Clamps & Holdfasts

  • Lightning Bimetallic Connection Components

Lightning Conductor Network

The conductor network is the means of intercepting/carrying the current of a lightning strike safely to the earth termination network. Use the guidelines of BS EN/IEC 62305-1 & 3 for the correct placement of conductors.

Fixing for Lightning Tapes

It‘s important to select the correct system of fixings for each part of the conductor system. Fixings are available for a wide range of modern construction materials, e.g. brick, stone, plastic and metal.

Clamps for Lightning Tapes

Select a component for the interconnection of multiple conductors or for changes of direction. Jointing clamps will ensure a low resistance, corrosion resistant connection between air termination and down conductors.

Test Clamps

In order to allow periodic disconnection and testing of the earth termination network, select a test clamp to be placed within the run of each down conductor.

EARTHING / GROUNDING SYSTEM-

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The combination of Furse earth electrodes, clamps, conductors and equipotential bonding bars which provide lightning and transient overvoltage energy with an effective, low resistance route from lightning protection system to earth. Some of the common lightning components:

  • Earth Rod

  • Earth Rod Clamp

  • Solid Copper Earth Plate

  • Lattice Copper Earth Plate

  • Polymer Earth Pit

  • Concrete Earth Pit

  • Earth Rod Seals

  • Earth Bars & Earth Boss

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.

Lightning protection & earthing design -

In order for us to design a structural and/or transient overvoltage lightning protection system, we need the following information:

  • Design standard, e.g. SS555, IEC/BS EN 62305, NFPA 780, etc.
  • A dimensioned roof plan and external elevations.
  • Construction details, e.g. steelwork, reinforced concrete, roofing materials, etc.
  • A single line diagram indicating voltage and current for each electrical system, e.g. power, data, telephones, fire alarms, CCTV.
  • Details of essential equipment, e.g. network servers, PLC controllers.

To design a power earth electrode system, we need the following information:

  • Design standard, e.g. BS 7430, BS 7354, Ansi IEEE Std 80, ENA TS 41-24, etc.
  • A dimensioned site plan and overall electrical single line diagram
  • Soil resistivity survey results
  • Earth fault current magnitude (due consideration should be given to the proportion of current flowing through cable sheaths or the aerial earth wires of overhead transmission lines)
  • Earth fault current duration
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