Protective Class I Three-Phase And Hard-Wired Equipments - ILLKO ESC 2051 User Manual

User's Manual
Step 6
Switch off main switch of equipment under test.
•
Release the START key in order to disconnect test voltage from Test socket 1, or
•
cancel locking of the START key (if it was activated) by means of ▲ or I
Step 7
Press the I
•
PE INV.
leakage with interchanged L-N. Either result of last measurement or „---" will be
displayed.
Repeat Steps 3 ÷ 6.
•
Take into consideration higher of both measured values when you evaluate the
•
condition of tested equipment.

4.5.3. Protective class I three-phase and hard-wired equipments

WARNING - DANGER!!
It is strongly recommended to test PE current during operation on protective
•
class I three-phase and hard wired equipments by means of optional clamp or
three-phase adapter for safety reasons. Following procedure can be applied
only in the case you have no mentioned optional accessories. Pay attention to
all safety rules and wariness, because if insulation of tested equipment is
damaged, dangerous voltage could occur on exposed conductive parts! Secure
tested equipment in order other person could not touch it!
Equipment under test has DISCONNECTED protective conductor!
Higher possibility that the measurement instrument can be damaged!
Firstly test earth bond (chapter 4.1.) and also insulation resistance (chapter
•
4.3.), if it is possible. Then you can execute PE current during operation
measurement.
Take into consideration all safety warnings!
•
Equipment under test must be isolated from ground (from the earth potential)
during measurement!
Step 1
Press the I
•
PE
Either result of last measurement or „---" will be displayed.
•
Copyright © 2004 ILLKO, s.r.o.
key (if you didn't press it already in Step 6) in order to select touch
I PE inv.
---
key and release it to select PE current during operation function.
I PE
---
32
ESC 2051
key.
PE INV.