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Equipotential Bonding System
Equipotential bonding is an earthing method in which steel frames and building structures, metal ducts
and pipes, and metal structures in floors are connected together and make connections to the earth
trunk line to achieve a uniform potential everywhere across the entire building. We recommend this
earthing method.
The following figure shows an example of an equipotential bonding system.
Connect the main earthing terminal and building structures together with equipotential bonding con-
ductors and embed the mesh ground line in each floor.
Connect the ground line of each control panel to the equipotential bonding system.
Earth trunk line
Information device
Control panel Control panel Control panel
Equipotential bonding conductor
Building structure
NY-series Industrial Box PC Hardware User's Manual (W556)
Power device
Metal duct and pipe
Noise source
Hub
Metal structure in floor
Main earthing terminal
Earth electrode
5 Installation
5
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