Among the two, Bentonite is the clay that retains moisture used as an electrode to help to lower the resistivity of soil. It undergoes swelling and rises in volume whenever water is mixed with it because of its unique properties. It also helps in protection from corrosion while enabling the soil to retain moisture and increase the size of copper earth rods that can be kept in the cable trench.
It is highly environmentally friendly and provides high-level support in telecommunications. It also protects the copper rods being stolen and is easier to install and cost-efficient. The article aims to talk about the significance of Bentonite clay and its earthy features.
How can Bentonite be used?
Firstly there is no fixed ratio when mixing with water; also, it can vary with the local electrical utility, DNO standards for engineering, and the fluctuations in ground resistive readings. The compound must be mixed profoundly with water to reach a balanced constitution and reach a slurry form for being used in the worksite or cable trench.
Enhance the soil’s conducive nature
Using Bentonite clay earthing, you will come across many advantages, like its ability to absorb rainwater and thus enhance the soil’s conductive capabilities complementing that of the local climate conditions. It’s also a very cost-effective material and also improves the performance by leaps. Bentonite can easily prolong the life period of the earth rods installed if the soil types are highly alkaline.
Retains the earth surface resistance
Moreover, Bentonite retains water increasing the surface contact area with the soil and consequently reducing grounding resistance. Carbon-based backfills often contain other contaminants, like sulphur and other elements which are harmful to copper and will be avoided. Backfill the borehole with Bentonite – this will be mixed with water an now in a slurry condition. Regular stirring or agitation of the earth rod should ensure that no voids are formed within the backfill of the underground trench.
Plastic and viscosity enhanced
The plasticity and viscosity of the earthing compound ensures simple installation and use by the utility or engineering contractor. There’s no precise mixing ratio and this varies consistent with local electrical utility and DNO engineering standards and preferences associated with ground conditions and resistivity readings.
Incredible benefits of bentonite clay
There are incredible benefits of using the bentonite clay. Bentonite clay has made nutrients help in getting rid of the toxins. It is indeed grey in colour and offers odorless, smooth and also non staining surfaces. It is used for beauty purposes. It heals from within. Granules are available in the compounds making it a perfect finish. It is used for LV, HV and MV applications.
It is good for lowering resistance
Bentonite is used to lower resistance while earthing. It provides with ground enhancements. The effective enhancement includes the soil and the earth. It is provided that the ground enhancement effectively reducing the resistance between the soil and earth electrode such as copper earth rod or earth mats by retaining moisture. The chemical-filled earth rod surrounded by the Bentonite offers the white slurry to improve the electrical connectivity to the copper earthing system.
Absorption rate is higher than its original volume
The absorption rate of Bentonite is very high and can reach five times its volume in water, and the swelling rate of it is also very astounding. It can easily reach up to 13 times the original volume before mixing. The hydration is chemically based and non-corrosive; the mixture be is also very stable and can easily retain its characteristics for a prolonged period.
Inherent quality speaks for the direct compound
The inherent ability to soak up and retain the rainwater increases by the electrical conductivity of the earthing compound in direct correlation to local climate, specifically average rainfall levels. Typically, the compound features includes in it the 3 ohms of resistivity level – Bentonite compound may be a cost-efficient material for backfill of the earthly electrodes and improves the performance when it’s physically impossible to drive the world rods deeper and where challenging ground conditions exist like rock, granite, etc.
Power type is highly commendable
The most preferred form is the granular one in trenches. The power type is highly recommended for the boreholes because the constituency is very thin and suitable as it can easily reach the bottom of the hole. Thus, Bentonite is truly a very versatile compound and is effective in its usage. While the latter, the concrete earthing method is to reduce the grounding difficulties for various infrastructures.
What is concrete earthing?
The slabs of concrete earthing are buried in this method to take in the moisture from the surroundings and are highly electric in their conductive state. The resistivity of the soil is mainly controlled by the moisture present in the soil; the steel bars placed inside the slabs are highly electric conductive and are not greatly affected by the presence of concrete, as long as both the concrete and the reinforcement of steel makes up the same area.
Concrete earthing is proportional
When the steel inside the concrete is proportional to the steel, it provides good equilibrium for the infrastructure. It is also necessary to follow the standards set locally for the equipment to be used under the manufacturer guidelines during earthing. Conductive concrete earthing features some of the only things that excel in terms of the technical performance.
How does switch gears help?
It is environmentally safe, reduces the theft of copper earthing rods. Apart from this it also enhances the installation process through good safety, time and money. Switch gears that are gas-insulated can also require more reinforcement with steel inside the concrete slabs. In the control center varied types of tools and equipments are used. Adaptable to the range of varied kinds of applications, it is within the telecommunications. Concrete earthing utilities ask for additional groundwork activities.
It is best to remove any standing water from the top of the borehole. Make final inspection to the earth rod and make good i.e. fit the earthing inspection chamber.