A. N. Wallis Product. Catalogue, which features our complete range of industry leading Earthing,. Exothermic Welding,. Surge and Lightning. Protection products . AN Wallis Earthing & Lightning Protection | Thorne & Derrick UK & Exports for best prices T&D Brochure – LV, MV & HV Cable Installation, Jointing, Substation. The Wallis concrete inspection pits are load rated to 4,kg suitable for most types of earthing and lightning protection installations. Lids are available in 2.

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Resistance to earthFor an LPS the earth termination network as a whole shouldhave a combined resistance of not more than ten ohms,before bonding to building metalwork. An earth electrode should be connected to each downconductor of a lightning protection system LPS.

Class B Surge Arrester.

A N Wallis & Co Ltd

Ring conductors connecting rodstogether underground canbe used. The seal is used in conjunction with the Wallis heavy duty earth housingshown on page Mounting Bracket – Zinc Plated Steel.

Polypropylene Base and Lid. Slate HoldfastThis Wallis holdfast provides a method for fixing 8mm bare conductorabove the roof tiles without drilling holes.

H.T Discharge Rod Manufacturer from Nadiad

The unit is made up from a soft aluminium tail attached to a nonmetallic DC clip. Every product featured has its own technicaland application drawings and product table. The aluminium clamps would mainly be used in lightning protection forconnecting aluminium tape to a puddle flange in a lightningprotection system. Earthing and Lightning Protection Accessories Engineering. Clamp Body – Gunmetal or Aluminium Bronze. The clips are available to suit both plain and PVC coveredtape in a variety of sizes.

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The pit can have an earth bar fitted diagonally across in slots providedfor multiple connections. Wallis has representation in the following countries: Lightning protection system design considerationsA LPS is designed according to geographical location, localterrain, soil conditions size and height of building, type ofmaterial used in construction, type of material stored in thebuilding, use of building and is based on establishedstandards for risk ctaalogue.

Body – Gunmetal or Aluminium.

Air termination networksThe recommended spacing between conductors variesaccording to risk and is detailed in internationally recognisedEuropean and British lightning protection standards. Photovoltaic Surge Protection Device. Copper Bonded Earthing Rods.

This unique detachable easy locking lid allows easy inspection andensures security of equipment as the locking mechanism can only beoperated by the special key provided. In recent years there has been substantial capital investment in new technology to increase our business efficiency.

Earthing Rods for Telecommunication Towers. Phone Line Surge Protection. Earth Bars Wallis copperbond earth rods offer installers the most economical method of achieving a low earth resistance.


GranularIts easier to handle in granular form, the powder can cause dust inwindy conditions and blow away, granular is the preferred option forfilling trenches where the conductor is covered with Bentonite and thenwater poured over and mixed in the trench. Silicon Composite Air Break Switch.

To ensure this is the case, it is generally acceptedthat the minimum spacing between rods should not be lessthan their driven length.

A N Wallis & Co Ltd

Earthing Compound – BentoniteBentonite can be supplied in powder or granular form and is a moistureretaining clay which is used to reduce soil resistivity. These Wallis clips are manufactured in high grade polypropylene andUV stabilised to prevent degradation or breaking in cold weather.

The clamp ensures a lasting and strongmechanical connection. It is recommended to use an oxide inhibiting compound withthis connector on page The aluminium tape is annealed for ease of use with radiused edges.

Where high resistance soil conditions are a problem soilconditioning agents can be used tobackfill rod holes. Looking for Advanced Earthing System? Self Supported Platform Ladder. Earthing and Lightning Protection Documents.

InsulatorsThese Wallis insulators are supplied with or without studs andlocking nuts.