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Text version of the page
| Earthing Subdivision of the PEN conductor in a distribution system | |||||||||||||||||||||||||
| If the cross-section of the neutral conductor is lower than or equal to 6 mm2, the neutral conductor and the protective conductor must run separately. If the cross-section of the neutral conductor is higher than or equal to 10 mm2, the PEN conductor can be used. When the PEN conductor is divided into a neutral and an earth conductor, a disconnecting unit must be inserted into the neutral conductor. This disconnecting unit must fulfill the requirements of a neutral disconnecting terminal and be mounted correctly in the house wiring. It must always be easy of access. The presented neutral disconnecting terminals are perfect in accordance with these requirements and when combined with detachable neutral connectors they give rise to the following applications. | |||||||||||||||||||||||||
| 1 | |||||||||||||||||||||||||
| The feed line of the distribution system is lead to terminals for 3 polar conductors and to the neutral connecting terminal fastened on the mounting rail of connecting terminals. The input of the neutral disconnecting terminal is then connected to a bare earthing terminal terminal on the mounting rail. This is the way a PEN conductor can be subdivided within a distribution system with the help of a neutral disconnecting terminal and a bare earthing terminal. The cover fitting this combination of terminals provides protection against any accidental contact as well as locking of the neutral disconnecting terminal. If detachable neutral connectors and earthing terminals are mounted next to the outgoing terminals, any parallel connection of neutral and protective conductors can be suppressed. The mounting rail provides the connection to the earth conductor, and the busbar of the detachable neutral connectors connected to the output of the neutral disconnecting terminal is joined to the neutral conductor. | |||||||||||||||||||||||||
| towards installation | |||||||||||||||||||||||||
| 3P+N+PE | |||||||||||||||||||||||||
| N | |||||||||||||||||||||||||
| L1 L2 L3 !!« 3P+N+PE 2P+N+PE P+N+PE P+N+PE | |||||||||||||||||||||||||
| Supply 3P+PEN non-through For feed lines | |||||||||||||||||||||||||
| from overcurrent trips | |||||||||||||||||||||||||
| woertz u | |||||||||||||||||||||||||
| 1.1.9 | |||||||||||||||||||||||||