In order to know what our product is, we must take an overview of the types of earthing and what are they?

1- Direct grounding

• This type of earthing is where the connection between the tie point and the ground is made directly by a conductor without any resistances or obstructions
• It treats the defects of the indirect grounding system and is used in the LV system where the ground fault current is small, but it is sufficient to operate the protection relays when any ground fault occurs, as it is disconnected momentarily without any delay.
• This system of protection is not suitable for the main circuits in high voltages that require continuity of feeding. This type of grounding is called effective grounding, given that the voltage of the healthy faces remains the same, i.e. its value does not increase.

2- Grounding with resistance

• The connection between the break-even point and the earth is through resistance and is used in systems with medium and high voltages in order to limit the voltage rise in the covers of electrical equipment when the fault currents of the earth connection pass through it and its value can be controlled to adjust the maximum height of the voltages of this equipment during the fault and it is also used in grounding a point Tie for generators with voltages higher than 1000 volts.
• This system is used when there is an urgent need to reduce the earth fault current

Grounding advantages:

• Protect equipment and circuits from the risk of excessive fault current.
•  Reducing the effect of Arcing Grounding strikes.
• Facilitate the use of ground fault protection devices.
• cost reduction.
• Limit the fault current to values ​​that do not affect the system

Advantages of ONKA STEATITE slate plants.

It is used in the production of insulating parts that have higher electrical and mechanical strength than traditional ones made of ceramic materials.
The material of the soap terminal contact is special alloy steel and its thermal operating temperature is 1100°C.

Also, ONKA steatite terminal block when operating at 1000°C automatically holds the temperature.

Advantages compared to ceramics:

• Higher mechanical strength
• Higher dimensional stability
• Higher temperature resistance (1000°C and above)
• High acid resistance
• Longer lifespan

Porcelain materials

• The material of the soap terminal contact is special alloy steel and its thermal operating temperature is 1100°C.
• ONKA steatite terminal block also bears at 1000°C operation automatically.

The grounding system is used and applied to: –

• Metal sheaths surrounding and covering electrical conductors, such as cable sheaths and reinforcing layers
• Metal structures and casings of electrical machines in general if they are exposed to contact between these structures and the current-carrying conductor.
• Casings and structures of motors, controls, elevators and cranes.
• Devices and equipment in garages, theatres, theaters and studios
• Electrical signaling and display devices
• Motors and generators connected to water pipe networks and pumps.
• Distribution boards and key holders.
• Some non-electric devices and equipment, such as steel ropes used in electric winches and elevators.
• Sockets connected to household appliances that operate with motors, as well as lampshades and electrical hand tools.
• Plugs and barriers connected to industrial equipment unless they are out of reach of individuals.
• Metal belts in chemical factories and petroleum refineries and its derivatives.
• Metal towers carrying high voltage lines.
• High buildings and chimneys of generation units and factories.

The highlight of these terminals is that the loosening problems that sometimes occur in screw terminals do not occur in this case.

• It greatly speeds up installation time
• ONKA has increased vibration and shock resistance.
• High strength insulator and complex insulators.
• Widely used in low and high power distribution cabinet.
• For power distribution, transmission, copper or aluminum busbar fixing, etc., play the role of insulation and conduction.
• Good electrical resistance, heat resistance, fire resistance, low shrinkage and water resistance, excellent texture and fine workmanship are your choice.