EARTHING ACCESSORIES


Earthing The earth termination system is vital for the dispersion of lightning current safely and effectively into the ground. The standard recommends a single integrated earth termination system for a structure, combining lightning protection, power and telecommunication systems. The agreement of the operating authority or owner of the relevant systems should be obtained prior to any bonding taking place. A good earth connection should possess the following characteristics: Low electrical resistance between the electrode and the earth. The lower the earth electrode resistance the more likely the lightning current will choose to flow down that path in preference to any other, allowing the current to be conducted safely to and dissipated in the earth Good corrosion resistance. The choice of material for the earth electrode and its connections is of vital importance. It will be buried in soil for many years so has to be totally dependable The standard advocates a low earthing resistance requirement and points out that the earthing system should have an overall resistance to earth path of 10 ohms or less. Three basic earth electrode arrangements are used: Type A arrangement Type B arrangement Foundation earth electrodes Type A arrangement This consists of horizontal or vertical earth electrodes, connected to each down conductor fixed on the outside of the structure. Type B arrangement This arrangement is essentially a fully connected ring earth electrode that is sited around the periphery of the structure and is in contact with the surrounding soil for a minimum 80% of its total length (i.e. 20% of its overall length may be housed in say the basement of the structure and not in direct contact with the earth). Foundation earth electrodes This is essentially a type B earthing arrangement. It comprises conductors that are installed in the concrete foundation of the structure. If any additional lengths of electrodes are required they need to meet the same criteria as those for type B arrangement. Foundation earth electrodes can be used to augment the steel reinforcing foundation mesh.
Product images

Earth Rod / Earth Electrodes

Product images

EARTH ROD COUPLER

Product images

DRIVING STUD / DRIVING HEAD

Product images

INTERNAL COUPLING DOWEL

Product images

EARTH ROD DRIVING SPIKE

Product images

CONCRETE EARTH PIT

Product images

EARTHING COMPOUND

Product images

EARTH ROD CLAMP

Product images

FLEXIBLE BRAID BOND

Product images

EARTH BAR

Product images

SALT AND COAL