Page 118 - dehn-catalogue-safety-equipment_0

NS / MS Dry Cleaning Kit MS Damp Cleaning Kit MS Combined Cleaning Kit PPE – Personal Protective Equipment Covering Material
Cleaning Equipment

Live Working
Cleaning Equipment Permanent availability of electricity has become a decisive factor in inter- Requirements on installers

national competition. At the same time, power interruptions must be re-
duced as a result of the increasing cost pressure. This makes it difficult to
Selection of electrically skilled persons for live working
ensure reliability of existing installations and to perform maintenance
work as entire parts of the installation cannot be disconnected and the Only electrically skilled persons with experience of several years in the
operation and maintenance of electrical installations are allowed to per-
only alternative is live working. DEHN has long-standing experience in the form maintenance and repair work. Electrically skilled persons must be
field of live working and has developed products which can be found in theoretically and practically trained for this type of work.
the DELTEC product range.
Training as live worker
Disconnecting installations for maintenance work The training as specialised live worker is based on detailed target descrip-
Electrical equipment and low-voltage, medium-voltage and high-voltage tions as required by the German trade association BG ETEM “Live working
systems such as overhead lines, transformer substations, switchgear in- on electrical installations and equipment“, DGUV regulation 103-011
stallations, distribution boards, transformer cells or cable distribution (previously BGR A3). It includes theoretical and practical training and a
cabinets cannot be disconnected or can only be disconnected with great “live working“ certificate upon completion of the training.
effort due to undesired downtimes or costly work on Sundays and public
holidays. “Live working“ procedure
During hot stick working, the worker keeps a predefined distance from
Live cleaning live parts of the installation and uses insulating sticks/operating sticks.
Clean installations increase system reliability
In case of adverse weather conditions (moisture), arcs may occur as a
result of soiled installations, dust layers and residues from lubricants on
insulators and cable sealing ends in medium-voltage installations, cob- 1 Operating head
webs and weeds in cable distribution boards as well as dust and lubricant 1 2 Extension
layers in low-voltage installations, resulting in power failure, damage to 3 Red ring
the equipment and even injury or death. 4 Insulating element
5 Hand guard
Regular cleaning intervals 6 Handle
Surveys revealed that open indoor installations and cable distribution
cabinets have to be cleaned at regular intervals between 6 months and 2 lV Dimensions:
years depending on the type and degree of pollution. lH Length of the handle
2 lI Length of the insulating
element
Dry suction cleaning combined with damp cleaning lV Length of the extensions
Dry cleaning work is performed by suction cleaning with operating heads lG Total length
or brushing soiled parts of the installation while simultaneously sucking
the dirt away. Loose layers of dust and cobwebs are easily cleaned with 3
little effort. Damp cleaning eliminates oily and tough pollutant layers with
the help of sponges soaked with special insulating cleaning liquid. lG
This type of work is performed according to the “hot stick working” pro- 4
cedure. lI

Dry suction cleaning equipment
Suction cleaning equipment consists of a cleaning head (operating heads,
brushes), intake tube with handle, extension, intake hose and suction de- 5
vice.
All single parts are made of plastic and are fully insulated. The shape of
the brushes and operating heads is largely adapted to the parts of instal-
lations to be cleaned. lH 6
The special plug-in coupling system of the dry cleaning equipment pre-
vents accidental use of accessories not intended for this application (e.g.
acessories of industrial vacuum cleaners).
Requirements on the vacuum cleaner
The vacuum cleaner used must meet the following requirements:
– The industrial vacuum cleaner must have a minimum air velocity of
20 m/s and a visual indication of the intake capacity.
– The intake hose must have a continuous inner diameter ≥ 30 mm and
must not contain any metal parts.
Design
Damp cleaning equipment
Damp cleaning equipment consists of special cleaning heads (sponge
holders), an insulating stick with handle and extension elements. All single
parts are fully insulated. The plug-in system of operating heads and spong-
es allows easy and fast replacement of dirty sponges. Only approved
sponges may be used for this purpose.

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