MR VACUTAP VV-Ex Series User manual

On-Load Tap-Changer
VACUTAP® VV-Ex
Operating Instructions
4983689/00 EN

© All rights reserved by Maschinenfabrik Reinhausen
Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited
unless expressly permitted.
Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents,
utility models or designs.
The product may have been altered since this document was published.
We reserve the right to change the technical data, design and scope of supply.
Generally the information provided and agreements made when processing the individual quotations and orders
are binding.
The original operating instructions were written in German.

Table of contents
Maschinenfabrik Reinhausen GmbH 2016 34983689/00 EN VACUTAP® VV-Ex
Table of contents
1Introduction......................................................................................................................... 6
1.1 Validity................................................................................................................................................. 6
1.2 Manufacturer....................................................................................................................................... 6
1.3 Subject to change without notice......................................................................................................... 7
1.4 Completeness...................................................................................................................................... 7
1.5 Safekeeping......................................................................................................................................... 7
1.6 Notation conventions........................................................................................................................... 7
1.6.1 Symbols................................................................................................................................................................. 8
1.6.2 Hazard communication system............................................................................................................................. 9
1.6.3 Information system.............................................................................................................................................. 10
2Safety................................................................................................................................. 11
2.1 General safety information................................................................................................................ 11
2.2 Appropriate use................................................................................................................................. 11
2.3 Inappropriate use............................................................................................................................... 11
2.4 Standards and regulations................................................................................................................. 12
2.4.1 Application range of the on-load tap-changer..................................................................................................... 12
2.4.2 Standards and regulations.................................................................................................................................. 14
2.5 Measures for ensuring compliance with explosion protection requirements..................................... 15
2.5.1 Measures taken by the manufacturer.................................................................................................................. 15
2.5.2 Measures to be taken by the transformer manufacturer/operator....................................................................... 15
2.6 Personnel qualification...................................................................................................................... 18
2.7 Operator's duty of care...................................................................................................................... 19
2.8 Personal protective equipment.......................................................................................................... 19
2.9 Protective devices............................................................................................................................. 20
2.9.1 Protective relay RS 2001-Ex............................................................................................................................... 21
2.9.2 Rupture disk ....................................................................................................................................................... 21
2.9.3 Tap-change supervisory control.......................................................................................................................... 21
2.9.4 Temperature monitoring...................................................................................................................................... 21
3Product description.......................................................................................................... 22
3.1 Scope of delivery............................................................................................................................... 22
3.2 On-load tap-changer.......................................................................................................................... 22
3.2.1 Function description............................................................................................................................................ 22
3.2.2 Setup/models...................................................................................................................................................... 23

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Maschinenfabrik Reinhausen GmbH 20164 4983689/00 ENVACUTAP® VV-Ex
3.2.3 Name plate.......................................................................................................................................................... 26
3.3 Drive shaft......................................................................................................................................... 26
3.3.1 Function description............................................................................................................................................ 26
3.3.2 Design/versions................................................................................................................................................... 28
3.3.3 Identification plate............................................................................................................................................... 30
3.4 Protective relay.................................................................................................................................. 30
3.4.1 Function description............................................................................................................................................ 30
3.4.2 Setup/versions..................................................................................................................................................... 31
3.4.3 Name plate.......................................................................................................................................................... 32
4Commissioning the transformer at the operating site.................................................. 33
4.1 Checking motor-drive unit.................................................................................................................. 33
4.2 Checking protective relay.................................................................................................................. 34
4.2.1 Checking protective relay (RS 2001, 2001/V, 2001/H, 2001/E, 2001/5, 2001/R, 2003)...................................... 34
4.3 Filling the oil compartment of the on-load tap-changer with oil......................................................... 35
4.4 Bleeding on-load tap-changer head and suction pipe....................................................................... 36
4.4.1 Bleeding on-load tap-changer head.................................................................................................................... 36
4.4.2 Bleeding suction pipe on pipe connection S........................................................................................................ 37
4.5 Performing trial tap-change operations............................................................................................. 37
4.6 Commissioning the transformer......................................................................................................... 38
5Operation........................................................................................................................... 39
5.1 Actuating motor-drive unit with hand crank....................................................................................... 39
5.2 Checking the quality of insulating oils................................................................................................ 39
6Fault elimination................................................................................................................ 41
6.1 Tripping of the protective relay and re-commissioning the transformer............................................. 43
6.1.1 Flap valve in IN SERVICE position..................................................................................................................... 44
6.1.2 Flap valve in OFF position................................................................................................................................... 44
6.1.3 Re-commissioning the transformer..................................................................................................................... 44
7Inspection and maintenance............................................................................................ 45
7.1 Inspection.......................................................................................................................................... 45
7.2 Maintenance...................................................................................................................................... 46
7.2.1 Maintenance intervals......................................................................................................................................... 46
7.2.2 Oil change........................................................................................................................................................... 48
8Technical data................................................................................................................... 49
8.1 Limit values for dielectric strength and water content of on-load tap-changer oil.............................. 50

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Maschinenfabrik Reinhausen GmbH 2016 54983689/00 EN VACUTAP® VV-Ex
8.2 Technical data for protective relay..................................................................................................... 51
8.2.1 Protective relay with several dry-reed magnetic switches................................................................................... 52
9Drawings............................................................................................................................ 53
9.1 External view (737774)...................................................................................................................... 53
9.2 On-load tap-changer head without oil suction pipe (898863)............................................................ 54
9.3 On-load tap-changer head with oil suction pipe (737060)................................................................. 55
9.4 Installation drawing (738902)............................................................................................................ 56
9.5 Oil suction pipe (739172)................................................................................................................... 57
9.6 Dimensions of oil suction pipe (not supplied by MR, 734342)........................................................... 58
9.7 Tracing template for on-load tap-changer head (893787)................................................................. 59
9.8 Mounting drawing (898866)............................................................................................................... 60
9.9 Mounting with bell-type tank installation (899110)............................................................................. 61
9.10 Position of on-load tap-changer (899409)......................................................................................... 62
9.11 Position of connection contacts (899051).......................................................................................... 63
9.12 Tap-change supervisory control (733469)......................................................................................... 64
9.13 Bevel gear CD 6400, dimensional drawing (892916)........................................................................ 65
Glossary............................................................................................................................. 66

1 Introduction
Maschinenfabrik Reinhausen GmbH 20166 4983689/00 ENVACUTAP® VV-Ex
Introduction
This technical file contains detailed descriptions for monitoring during opera-
tion, troubleshooting, and maintenance.
It also includes safety instructions and general information about the prod-
uct.
Information about installation can be found in the installation and commis-
sioning instructions.
This technical file is intended solely for specially trained and authorized per-
sonnel.
Validity
The document supplied with the product is always the valid version. This
technical file is configured for the specific order and applies to the following
products, the serial numbers of which can be found on the delivery docu-
ments:
▪ On-load tap-changer VACUTAP® VV-Ex
▪ Protective relay RS-Ex
▪ Ex drive shaft
This technical file applies to the following types of on-load tap-changer
VACUTAP® VV®-Ex:
Single-phase on-load tap-changer
▪ VACUTAP® VV I 401-76
▪ VACUTAP® VV I 401-145
Three-phase on-load tap-changer
▪ VACUTAP® VV III 250 Y
▪ VACUTAP® VV III 400 Y
▪ VACUTAP® VV III 600 Y
▪ VACUTAP® VV III 250 D
▪ VACUTAP® VV III 400 D
▪ VACUTAP® VV III 600 D
Manufacturer
The product is manufactured by:
Maschinenfabrik Reinhausen GmbH
1
1.1
1.2

1 Introduction
Maschinenfabrik Reinhausen GmbH 2016 74983689/00 EN VACUTAP® VV-Ex
Falkensteinstraße 8
93059 Regensburg, Germany
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Further information on the product and copies of this technical file are avail-
able from this address if required.
Subject to change without notice
The information contained in this technical file comprises the technical speci-
fications approved at the time of printing. Significant modifications will be in-
cluded in a new edition of the technical file.
The document number and version number of this technical file are shown in
the footer.
Completeness
This technical file is incomplete without the supporting documentation.
The following documents apply:
▪ Unpacking instructions (included in the scope of delivery)
▪ Supplement (included in the scope of delivery)
▪ Routine test report (included in the scope of delivery)
▪ Connection diagrams (included in the scope of delivery)
▪ Dimensional drawings (included in the scope of delivery)
▪ Technical data - General section (available on request)
▪ Technical data - Product-specific section (available on request)
Also observe generally valid legislation, standards, and guidelines as well as
specifications on accident prevention and environmental protection in the re-
spective country of use.
Safekeeping
Keep this technical file and all supporting documents ready at hand and ac-
cessible for future use at all times.
Notation conventions
This section contains an overview of the symbols and textual emphasis
used.
1.3
1.4
1.5
1.6

1 Introduction
Maschinenfabrik Reinhausen GmbH 20168 4983689/00 ENVACUTAP® VV-Ex
Symbols
Symbol Meaning
Wrench size
Tightening torque
Number and type of fastening material used
Fill with oil
Cut open, cut through
Clean
Visual inspection
Use your hand
Adapter ring
Apply a coat of paint
Use a file
Grease
Coupling bolt
Use a ruler
Use a saw
Hose clip
1.6.1

1 Introduction
Maschinenfabrik Reinhausen GmbH 2016 94983689/00 EN VACUTAP® VV-Ex
Symbol Meaning
Wire eyelet, safety wire
Use a screwdriver
Apply adhesive
Lock tab
Table 1: Symbols
Hazard communication system
Warnings in this technical file are displayed as follows.
Warning relating to section
Warnings relating to sections refer to entire chapters or sections, sub-sec-
tions or several paragraphs within this technical file. Warnings relating to
sections use the following format:
WARNING Type and source of danger
Consequences
► Action
► Action
Embedded warning information
Embedded warnings refer to a particular part within a section. These warn-
ings apply to smaller units of information than the warnings relating to sec-
tions. Embedded warnings use the following format:
DANGER! Instruction for avoiding a dangerous situation.
Signal words and pictograms
The following signal words are used:
Signal
word
Meaning
DANGER Indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
1.6.2
1.6.2.1
1.6.2.2
1.6.2.3

1 Introduction
Maschinenfabrik Reinhausen GmbH 201610 4983689/00 ENVACUTAP® VV-Ex
Signal
word
Meaning
WARNING Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION Indicates a hazardous situation which, if not avoided, could
result in injury.
NOTICE Indicates measures to be taken to prevent damage to
property.
Table 2: Signal words in warning notices
Pictograms warn of dangers:
Pictogram Meaning
Warning of a danger point
Warning of dangerous electrical voltage
Warning of combustible substances
Warning of danger of tipping
Table 3: Pictograms used in warning notices
Information system
Information is designed to simplify and improve understanding of particular
procedures. In this technical file it is laid out as follows:
Important information.
1.6.3

2 Safety
Maschinenfabrik Reinhausen GmbH 2016 114983689/00 EN VACUTAP® VV-Ex
Safety
General safety information
This technical file contains detailed descriptions of the safe and proper oper-
ation of the product and monitoring during operation.
▪ Read this technical file through carefully to familiarize yourself with the
product.
▪ Particular attention should be paid to the information given in this chap-
ter.
Appropriate use
If used as intended and in compliance with the requirements and conditions
specified in this technical file as well as the warning notices in this technical
file and attached to the product, then the product does not present any haz-
ards to people, property or the environment. This applies throughout the
product's entire life, from delivery through installation and operation to disas-
sembly and disposal.
The operational quality assurance system ensures a consistently high quality
standard, particularly in regard to the observance of health and safety re-
quirements.
The following is considered appropriate use
▪ Only operate the product in accordance with this technical file and the
agreed delivery conditions and technical data
▪ Use the equipment and special tools supplied solely for the intended
purpose and in accordance with the specifications of this technical file
▪ Use the product only with the transformer specified in the order
▪ You will find the standard valid for the product and the year of issue on
the name plate
▪ The serial numbers of on-load tap-changers and on-load tap-changer
accessories (drive, drive shaft, bevel gear, protective relay etc.) must
match if the on-load tap-changers and on-load tap-changer accessories
are supplied as a set for one order.
▪ Never change the factory-configured temperature in the temperature
monitoring relay. Failure to do so will result in the risk of explosion.
▪ Ensure that stop cocks between the diverter switch oil compartment and
oil conservator of the on-load tap-changer are open during operation
and that the flow of oil between the diverter switch oil compartment and
oil conservator is not obstructed. Failure to do so will result in the risk of
explosion.
Inappropriate use
Use is considered to be inappropriate if the product is used other than as de-
scribed in the Appropriate use section. Please also note the following:
2
2.1
2.2
2.3

2 Safety
Maschinenfabrik Reinhausen GmbH 201612 4983689/00 ENVACUTAP® VV-Ex
Unauthorized or inappropriate changes to the product may lead to personal
injury, material damage, and operational faults. Only modify product follow-
ing discussion with Maschinenfabrik Reinhausen GmbH.
Standards and regulations
The standards and regulations which apply to the explosion-protected prod-
uct are described in the following chapters.
Application range of the on-load tap-changer
The on-load tap-changer is certified for Ex II 3G Ex nAC IIC T3 Gc. Refer to
the following overview for the resulting application range.
1 2 3 4 5 6 7 8
II 3G Ex nAC IIC T3 Gc
Table 4: Example of the application range
Number Meaning
1Sign for explosion protection
2 Equipment group
3 Equipment category
4 Ex: Symbol for explosion-protected equipment
5 Ignition protection type
6 Explosion group
7 Temperature class
8 EPL (Equipment Protection Level)
Equipment groups (number 2)
IEquipment in this category is intended for use in under-
ground parts of mines as well as those parts of surface in-
stallations of such mines endangered by firedamp and/or
combustible dust.
II Equipment in this category is intended for use in other
areas in which explosive atmospheres may be present.
Table 5: Equipment groups
2.4
2.4.1

2 Safety
Maschinenfabrik Reinhausen GmbH 2016 134983689/00 EN VACUTAP® VV-Ex
Equipment category / zone classification (number 3)
Designa-
tion for
gases
Designa-
tion for
dusts
Definition
1G
(0)
1D
(20)
Equipment in this category is intended for
use in areas in which explosive atmospheres
caused by mixtures of air and gases, vapors
or mists or by air/dust mixtures are present
continuously, for long periods or frequently.
2G
(1)
2D
(21)
Equipment in this category is intended for
use in areas in which explosive atmospheres
caused by gases, vapors, mists or air/dust
mixtures occur occasionally.
3G
(2)
3D
(22)
Equipment in this category is intended for
use in areas in which explosive atmospheres
caused by gases, vapors, mists, or air/dust
mixtures are unlikely to occur or, if they do
occur, are likely to do so only infrequently
and for a short period only.
Table 6: Equipment category / zone classification
Ignition protection types (number 5)
dPressure-proof enclosure
e Increased safety
I Intrinsic safety (ia, ib)
m Encapsulation
o Oil immersion
p Pressurized apparatus
q Powder filling
nIgnition protection type "n" (only zone 2)
n A: non-sparking equipment
n C: sparking equipment with special protection for con-
tacts
n R: vapor-protected housing
Table 7: Ignition protection types
Explosion group (number 6)
EN/IEC Gases, vapors (examples) Min. ignition energy
(mJ)
IIA Ammonia -
IIA Acetic acid, acetone, benzene,
diesel, ethane, ether, fuel oil, hex-
ane, methane, petrol, petroleum,
propane
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EN/IEC Gases, vapors (examples) Min. ignition energy
(mJ)
IIB Ethylene, isoprene, town gas 0.06
IIC Acetylene, carbon disulfide, hy-
drogen
0.02
Table 8: Explosion groups
Temperature classes (number 7)
Tempera-
ture class
Maximum equipment surface
temperature
Ignition tempera-
ture of the flamma-
ble substances
T1 450 °C > 450 °C
T2 300 °C > 300 °C < 450 °C
T3 200 °C > 200 °C < 300 °C
T4 135 °C > 135 °C < 200 °C
T5 100 °C > 100 °C < 135 °C
T6 85 °C > 85 °C < 100 °C
Table 9: Temperature classes
Equipment protection level (EPL) (number 8)
The EPL indicates the level of protection defined for a device based on the
level of probability of ignition and taking account of the differences between
potentially explosive gas atmospheres, potentially explosive dust atmos-
pheres, and potentially explosive atmospheres in mine workings affected by
firedamp.
Standards and regulations
The following standards and regulations apply to explosion-proof on-load
tap-changers:
▪ EN 60079-15 (ignition protection type "nAC") for sparking equipment
with contacts which are protected in a suitable manner other than
through vapor-free housing, energy limitation or pressurized apparatus.
▪ Additional requirements apply to vacuum interrupters, as these are her-
metically sealed equipment that generates arcs, sparks or hot surfaces.
▪ Additional requirements apply to the diverter switch oil compartment, as
this is sealed or encapsulated equipment that generates arcs, sparks or
hot surfaces.
2.4.2

2 Safety
Maschinenfabrik Reinhausen GmbH 2016 154983689/00 EN VACUTAP® VV-Ex
Measures for ensuring compliance with explosion
protection requirements
Measures taken by the manufacturer
Maschinenfabrik Reinhausen has taken the following measures for ensuring
compliance with explosion protection requirements. You do not need to take
any special measures in this regard.
Quality of the insulating oil in the on-load tap-changer
The quality of the insulating oil required by IEC 60296 and the quality of the
synthetic esters required by IEC 61099 in the oil compartment of the on-load
tap-changer is ensured by using vacuum cells in transition resistors.
Monitoring the oil temperature in the diverter switch oil compartment
A temperature sensor is provided in the on-load tap-changer head cover for
monitoring the oil temperature in the diverter switch oil compartment. The
corresponding temperature monitoring relay is in the TAPMOTION® ED-Ex.
Temperature monitoring prevents further switching of the on-load tap-chang-
er when the maximum permitted temperature is reached. This maximum per-
mitted temperature is factory-configured for each specific order for all on-
load tap-changer types (maximum 130 °C) and secured against accidental
incorrect adjustment.
Measures to be taken by the transformer manufacturer/operator
The following measures for ensuring compliance with explosion protection
requirements must be taken by the transformer manufacturer/operator.
Prescribed protective and drive components
Operate the on-load tap-changer only in conjunction with the following com-
ponents:
▪ Ex protective relay
▪ Ex motor-drive unit
▪ Ex drive shaft
2.5
2.5.1
2.5.1.1
2.5.1.2
2.5.2
2.5.2.1

2 Safety
Maschinenfabrik Reinhausen GmbH 201616 4983689/00 ENVACUTAP® VV-Ex
Setting up the on-load tap-changer oil system
Operate the on-load tap-changer only with a suitable oil system. This divert-
er switch oil system consists of the diverter switch oil compartment, protec-
tive relay, and oil conservator of the on-load tap-changer. It ensures that
enough insulating oil is present in the diverter switch oil compartment at all
times.
Figure 1: On-load tap-changer oil system
1 Diverter switch oil compart-
ment
5 Signaling contacts
2 Temperature sensor 6 Oil conservator
3 Protective relay 7 Dehydrating breather
4 Level indicator
Oil conservator to be used
The oil conservator of the on-load tap-changer ensures that sufficient insu-
lating oil is present in the on-load tap-changer oil system at all times during
operation.
Therefore, operate the on-load tap-changer only with a oil conservator that
fulfills the following requirements:
2.5.2.2
2.5.2.3

2 Safety
Maschinenfabrik Reinhausen GmbH 2016 174983689/00 EN VACUTAP® VV-Ex
Dehydrating breather
The oil conservator must be equipped with a dehydrating breather in accord-
ance with VDE 0532-216-5. The dehydrating breather prevents water, impur-
ities, insects etc. from entering the insulating oil.
Level indicator
The oil conservator must have a level indicator from which the minimum oil
quantity required and the maximum quantity permitted, as well as the current
oil level, can be read.
Level monitoring
The oil level in the oil conservator must be monitored at all times during op-
eration. Therefore, loop the signaling contact for falling below the minimum
oil level in the on-load tap-changer's oil conservator to the tripping circuit of
the circuit breaker so that the circuit breaker will immediately de-energize the
transformer when the oil level in the oil conservator falls below this minimum.
Insulating oil to be used
When filling the diverter switch oil compartment and its oil conservator, use
only new mineral insulating oil for transformers in accordance with IEC
60296 (Specification for unused mineral insulating oils for transformers and
switchgear) or synthetic ester in accordance with IEC 61099 (Specifications
for unused synthetic organic esters for electrical purposes).
Checking the quality of the insulating oil in the Ex transformer
During the tap changes, polarity sparks (low energy) may occur at the tap
selector of the on-load tap-changer in the transformer tank. In this regard,
observe Section 5.1.6 and 5.1.7 in the on-load tap-changer standard IEC
60214.
Therefore, check the quality and dielectric strength of the insulating oil in the
transformer tank on a regular basis and comply with the service intervals for
the oil change.
2.5.2.3.1
2.5.2.3.2
2.5.2.3.3
2.5.2.3.4
2.5.2.3.5

2 Safety
Maschinenfabrik Reinhausen GmbH 201618 4983689/00 ENVACUTAP® VV-Ex
Corrosion protection measures
Because further installation steps are required before operation of the on-
load tap-changer, sufficient corrosion protection cannot be provided at cer-
tain interfaces to the transformer when the device leaves the factory.
Figure 2: On-load tap-changer head
1 Sealing surface on piping con-
nection flange
3 Contact surface on on-load
tap-changer head
2 Air-vent valve 4 Through-holes
The sealing surfaces on the piping connection flange are zinc-plated ex fac-
tory. The through-holes are zinc-plated and partially painted.
The contact surface of the on-load tap-changer head is primed ex factory.
The through-holes are primed and partially painted.
The transformer manufacturer is responsible for the design of the mating
surfaces on the transformer and piping and that of the screw connections
needed for these attachments.
1. Provide suitable sealing to prevent electrolytes from entering sealing
surfaces and holes.
2. Design screws, washers, nuts etc. in A4 in accordance with ISO
3506-1/ISO 3506-2 standard.
3. If the painted surfaces are damaged, note repair instructions. These can
be requested from Maschinenfabrik Reinhausen GmbH's Technical
Service department.
Personnel qualification
The product is designed solely for use in electrical energy systems and facili-
ties operated by appropriately trained staff. This staff comprises people who
are familiar with the installation, assembly, commissioning and operation of
such products.
2.5.2.4
2.6

2 Safety
Maschinenfabrik Reinhausen GmbH 2016 194983689/00 EN VACUTAP® VV-Ex
Operator's duty of care
To prevent accidents, disruptions and damage as well as unacceptable ad-
verse effects on the environment, those responsible for transport, installa-
tion, operation, maintenance and disposal of the product or parts of the prod-
uct must ensure the following:
▪ All warning and hazard notices are complied with.
▪ Personnel are instructed regularly in all relevant aspects of operational
safety, the operating instructions and particularly the safety instructions
contained therein.
▪ Regulations and operating instructions for safe working as well as the
relevant instructions for staff procedures in the case of accidents and
fires are kept on hand at all times and are displayed in the workplace
where applicable.
▪ The product is only used when in a sound operational condition and
safety equipment in particular is checked regularly for operational relia-
bility.
▪ Only replacement parts, lubricants and auxiliary materials which are au-
thorized by the manufacturer are used.
▪ The specified operating conditions and requirements of the installation
location are complied with.
▪ All necessary devices and personal protective equipment for the specific
activity are made available.
▪ The prescribed maintenance intervals and the relevant regulations are
complied with.
▪ Installation, electrical connection and commissioning of the product may
only be carried out by qualified and trained personnel in accordance
with this technical file.
▪ The operator must ensure appropriate use of the product.
Personal protective equipment
Personal protective equipment must be worn during work to minimize risks to
health.
▪ Always wear the personal protective equipment required for the job at
hand.
▪ Follow information about personal protective equipment provided in the
work area.
2.7
2.8

2 Safety
Maschinenfabrik Reinhausen GmbH 201620 4983689/00 ENVACUTAP® VV-Ex
Always wear
Protective clothing
Close-fitting work clothing with a low
breaking strength, with tight sleeves and
with no protruding parts. It mainly serves
to protect the wearer against being caught
by moving machine parts.
Do not wear any rings, necklaces or other
jewelry.
Safety shoes
To protect against falling heavy objects
and slipping on slippery surfaces.
Table 10: Personal protective equipment to be worn at all times
Wear the following in spe-
cial environments
Special personal protective equipment
is needed in special environments.
The choice of equipment depends on
the circumstances.
Safety glasses
To protect the eyes from flying parts and
splashing liquids.
Hard hat
To protect from falling and flying parts and
materials.
Hearing protection
To protect from hearing damage.
Table 11: Personal protective equipment to be worn in special environments
Protective devices
The following protective devices for the product are included as standard in
the scope of delivery or are available as options.
2.9