Service Details

• We are authorised System Integrator for OBO Bettermen for their Lightening Protection System. 
• OBO Bettermann is one of the world’s most experienced manufacturers of lightning and surge protection systems.For almost 100 years, OBO has been developing and producing standard-compliant lightning protection components.OBO was the first manufacturer to publish a guide to lightning protection – way back in the 1950s. 
• All lightning and surge protection systems are made up of the following elements:

1. Interception and down-conductor systems Interception and arresting systems reliably arrest direct lightning strikes with energy of up to 200,000 A and conduct them safely into the earthing system.
2. Earthing systems Earthing systems discharge approx. 50% of the arrested lightning current into the ground; the other half is distributed via the equipotential bonding.
3. Equipotential bonding systems Equipotential bonding systems form the interface between external and internal lightning protection. They ensure that dangerous potential differences do not come about in the building.
4. Surge protection systems Surge protection systems form a multi-stage barrier which no surge voltage can break through.

Interception systems reliably intercept direct lightning strikes carrying up to 200,000 A of energy and conduct them down into an earthing system through the arrester system.

• The Down-conductor shall be arranged in such a way that from the point of strike to the earth.
• Several parallel current paths exist in the system of down conductors
• The length of the current path is kept in a minimum: and Equipotential bonding to the conducting part of the structured is performed
• The wind speed shall be taken in to account while mounting the air termination and down conductor system

Description:

• The lightning protection equipotential bonding is a building’s internal lightning protection system. When lightning strikes, a voltage drop occurs at the earthing resistor, producing dangerous voltage differencesbetween the metal building components and thepower and data cables, which need to be prevented.The equipotential bonding connects together all metal installations (gas and water pipes, etc.), electrical systems (power and data cables), the lightning protectionsystem and the earthing system, either directly or via lightning current down conductors. A distinction is drawn between “protective equipotential bonding” and “additional protective equipotential bonding”.

Protective equipotential bonding 

• All extraneous conductive parts routed into the building must be connected with one another in order to prevent differences in potential.

Additional protective equipotential bonding

• The lightning protection equipotential bonding is an extension of the general protective equipotential bonding. It is achieved by using surge protection devices to create an additional equipotential bonding system for all supply lines of the low-voltage system and information technology.

Description

• Very large surge voltages are caused mainly by lightning strikes on or close to energy systems. Even from several hundred metres away, lightning currents can also cause impermissible surge voltages in conductor
• loops, through either capacitive, inductive or galvanic coupling. Large surge voltages are coupled over a radius of up to 2 km. Switching operations involving inductive loads create dangerous surge voltages in the medium and low-voltage power networks.

The tasks of an earthing system are:

• Arresting of the lightning current into the earth
• Equipotential bonding between the down-conductors
• Potential control near conductive walls of the building structure

DIfferent Types of Earthing Electrode/Systems Used as per design.

Single Electrode / Multiple Electrode/ RIng Earthing / MEsh Earthing /Plate Earthing as shown in image