Guidelines for Creating Ground Connections

Guidelines for Creating Ground Connections

Guidelines for a good ground connection The following guidelines should be followed when creating ground connections:  Ground connections must be made with great care and the operating demands of the system must not be impaired.  High contact resistance with the ground connection must be avoided by taking the following measures:  Galvanized mounting plates and fixing components must be used  Remove painted or coatings from contact points and protect from corrosion with electrically conductive special grease  Bolt on metal pieces directly, without additional electrical conductors, e.g. cable ducts  Daisy chaining of earth busbars and welded or bolted on grounding strips (instead of flexible grounding cables)

Install earth busbars, grounding strips Daisy chaining of earth busbars and welded or bolted on grounding strips (instead of flexible grounding cables)

Example: Cabinet door Use grounding strips instead of a flexible earth cable for the connection between the cabinet door and the cabinet housing

Remove all coatings Remove painted or coatings from contact points and protect from corrosion with electrically conductive special grease

Direct bonding by bolted fastening for metallic parts Bolt on metal pieces directly, without additional electrical conductors, e.g. cable ducts

Ground connection for cable shields The following illustration shows how to create a ground connection for cable shields.

NOTE: The ground connection for cable shields must always run through the entire cable.