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PHE4 Voltage Detector PHE III Voltage Detector PHE Voltage Detector PHG II Voltage Detector Non-Contact Voltage Detector PHE/G Voltage Detector SPN Voltage Detector
3. Verify that the Installation is dead – DEHNcheck Voltage Detectors

Design of Voltage Detectors
Voltage detectors according to IEC/EN 61243-1 (DIN VDE 0682-411) are Voltage detector of category “S” (switchgear) with a long test prod (with
designed to verify on all poles at the work location that the installation is contact electrode extension) are resistant to interference fields and are
dead according to EN 50110-1 (DIN VDE 0105-100). therefore used in switchgear installations. They are also suitable for over-
head lines.
Only electrotechnically skilled or instructed persons are allowed to verify The hand guard provides a visible barrier between the handle and the
on all poles at the work location or as close as possible to the work loca- insulating element and prevents the user from making contact with the
tion that the installation is dead. insulating element.
The red ring indicates the end of the insulating element in the direction
Voltage detectors must be tested for correct operation immediately before of the test electrode. This provides the user with a visible limit for contact
and after use. Correct operation of voltage detectors without self-testing with live parts in the installation. The insulating element between the red
element must be verified by contacting a part of the installation connect- ring and the hand guard must not contact live parts, however, it may
ed to operating voltage. contact earthed parts.
The test electrode is the part of the voltage detector that is used to make
Verifying that the installation is dead using a voltage detector is consid- contact with the part of the installation to be tested.
ered live working.
1
Voltage detectors may only be used for the nominal voltages / nominal
voltage ranges as indicated on the rating plate. The user may be at risk if
the voltage detector is used for voltages other than indicated on the rating Category S Category S
plate (incorrect indication, electric shock, arcing).
3. DEHNcheck Voltage Detectors in indoor installations.
Voltage detectors labelled with “For indoor use only” may only be used

Voltage detectors labelled with “For use in wet weather conditions” may
be used in all weather conditions (rain, snow, fog and dew).
Voltage detectors according to IEC/EN 61243-1 (DIN VDE 0682-411) are
only suitable to a limited extent for use in factory assembled (type-tes- lO Category L
ted) installations. If space in installations is confined, flashover may occur
when inserting the test prod into the installation. The user of the voltage
detector or the operator of the switchgear installation must contact the
manufacturer of the type-tested installation to find out whether the volt-
age detector may be used in the installation (please refer to the table on
the next page: Application of voltage detectors in type-tested, factory
assembled switchgear installations).
Design of voltage detectors 2 lG
Voltage detectors according to IEC/EN 61243-1 (DIN VDE 0682-411) are
single-pole devices designed to make contact with the part of the instal- 3
lation to be tested.
There are two mechanically different designs of voltage detectors:
Complete and separate voltage detectors.
Complete voltage detectors (PHE4, PHE III, PHE and PHG II) consist of an
insulating stick, indicator and test prod and are tested as a complete unit.
Separate voltage detectors (PHE III indicator with test prod) must be at- lI
tached to a suitably rated insulating stick. 4
Single-pole voltage detectors typically consist of a handle, insulating
element, indicator and test prod with contact electrode.

The insulating element is the section of a voltage detector between the
hand guard and the red ring. It ensures that the user maintains an ade- 5
quate safety distance for safe operation. 6
The test prod (contact electrode extension) with a contact electrode
above the red ring allows to reach remote parts of the installation and
to eliminate the influence of interference fields.
Voltage detectors are classified into two categories based on their behav- 7
iour in case of interference fields or their field of application. Voltage
detectors of category “L” (line) with a short test prod (without contact
electrode extension) are designed for use on overhead lines. PHE4 PHE III
1 Test electrode lG Total length of the voltage detector
2 Red ring lO Length of the top section
3 Operating head / Indicator lI Length of the insulating element
4 Insulating element
5 Hand guard
6 Handle
7 Plug-in coupling for handle
extension

24 You will find detailed product information on our website Valid as of January 1, 2019