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5. Provide Protection against adjacent Live Parts – Insulating Protective Shutters

Insulating Protective Shutters
Rated voltages from 1 kV to 36 kV
• Protection against accidental contact with live parts of instal-
lations with rated voltages from 1 kV to 36 kV
• Four different designs for use in almost all types of switchgear
installations

General Information:
Standard DIN VDE 0682-552
For Use in indoor installations only
Inserting an insulating protective shutter (type A3) by means of an operating stick

According to the five safety rules, adjacent parts are parts situated in the
vicinity zone. If parts of an installation near the work location cannot be
disconnected, additional safety measures must be taken before starting
work as is the case with work in the vicinity of live parts.
Insulating protective shutters according to DIN VDE 0682-522 are used to
provide protection against accidental contact with live parts of an instal-
lation. They are portable and inserted under live conditions by hand or by
using an operating stick. Live Working Zone
Insulating protective shutters are designed for short-term use in indoor b
electrical installations according to DIN VDE 0101 with voltages from 1 to
36 kV a.c. at nominal frequencies below 100 Hz to provide protection
against direct contact according to DIN VDE 0105-100 when working in a Min. distance of the live a I C
the vicinity of live parts. part from the edge of the shutter
b Min. distance of the live
When used in medium-voltage installations, insulating protective shutters part from the shutter
might have to be adapted, for example if it is not possible to insert shut- l C Safety distance (min. 525 mm)
ters in the live working zone without risk due to unfavourably located
drives, switch components or isolating plates. In such cases, a stand-
ard-compliant solution can be found by cutting out parts of the insulating Example of a live working zone in case of an insulating protective shutter of
protective shutter or cutting it to size. For that purpose, technical details type A1
must be provided. We have developed a special template for insulating
protective shutters which can be used, for example, to mark the exact Rated voltage Minimum distance of the live part
location of cut-outs. Ur from shutter edge a from shutter b
3.6 kV 60 mm 0 mm
For enquiries and orders, please fill in the template on our website www.
dehn-international.com. 7.2 kV 90 mm 0 mm
12.0 kV 120 mm 20 mm
Note 24.0 kV 220 mm 60 mm
Insulating protective shutters do not protect against re-connection. The 36.0 kV 320 mm 100 mm
protected area is the area which is separated from the area containing
live parts by the insulating protective shutter. The minimum distances
shown in the above table between shutters / shutter edges and live parts
must be observed.
The protective part (with length IS and, if required, height hS) of insulating
protective shutters is the part that provides protection against accidental
contact with live parts. It is fitted with either a handle or a coupling for
attaching an operating stick.
Outside the live working zone, the following gaps are permissible be-
tween shutter edge and cell wall:
• Up to 10 mm without restriction
• Up to 40 mm, if the distance between the shutter edge and the live
working zone is at least 100 mm
• Up to 100 mm near a switch subconstruction

5. Insulating Protective Shutters

Valid as of January 1, 2019 You will find detailed product information on our website 111