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		Protective Measures against Hazardous Contact Voltage - Course: Basic skills and knowledge of electrical engineering. Instruction examples for practical vocational training (Institut für Berufliche Entwicklung, 15 p.)
			(introduction...)
			Introduction
			Instruction Example 4.1. Preparation of a Potential Equalitation
			Instruction Example 4.2. Testing of the Protective Measure of ''Protective Insulation''
			Instruction Example 4.3. Testing of the Protective Measure of ''Protective Conductor System''

Introduction

The present material contains 3 selected instruction examples on the basis of which essential skills shall be exercised in the field of protective measures against hazardous contact voltage.

Since these protective measures against hazardous contact voltage are mastered only by much practice, the instruction examples have to be repeated continuously.

In order to facilitate the preparation and accomplishing of the exercises, for each instruction example - if required - the necessary materials, measuring and testing tools, auxiliary means and basic knowledge are mentioned, which must be available to carry out the tasks.

In addition to the sequence of operations, sketches are enclosed illustrating the carrying out of the exercises.