Electrical Connections; Instrumental Checks To Be Carried Out By The Installer - DAB E.Box Plus Installations- Und Wartungsanleitungen

2.1

Electrical connections

Ensure that the main switch on the power distribution panel is in OFF position (0) and that no one can switch on the power accidentally before
connecting the power cables to the terminals:
Scrupulously observe all the regulations in force concerning safety and accident prevention.
Ensure that all the terminals are fully tightened, paying particular attention to the earth screw.
Connect the cables to the terminal board as indicated in the wiring diagrams.
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Check that all the connecting cables are in excellent condition, with the external sheathing unbroken.
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The system must be correctly and safely earthed as required by the regulations in force.
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Check that the differential switch that protects the system is of the correct dimensions.
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2.1.1 Instrumental checks to be carried out by the installer

Continuity of the protection leads and of the main and supplementary equipotential circuits.
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Insulating resistance of the electric system between the active circuits L1-L2-L3 (short-circuited with each other) and the equipotential
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protection circuit.
Testing the efficiency of the differential protection.
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Testing the voltage applied between the active circuits L1-L2-L3 (short-circuited with each other) and the equipotential protection circuit.
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Testing operation.
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ENGLISH
L1 - L2 - L3 - for three-phase systems
L - N - for single-phase systems
and to the isolating switch QS1.
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