Supplementary installation, operating and maintenance instructions English
Explosion-proof three-phase asynchronous motors with squirrel-cage rotor for high voltage
815001 Edition 09.2020
6
and Safety Directive” (formerly ATEX 118a or 137).
The basis for explosion-proof products is Directive 2014/34/EU. This specifies the requirements of products
for use in potentially explosive atmospheres. These are supported by corresponding standards (see below).
Explosion-protected electrical machines to which these instructions apply must be constructed in accordance
with the standards of IEC/EN 60034 (VDE 0530), IEC/EN 60079-0 and the standards IEC/EN 60079-7 and
IEC/EN 60079-31 valid for the corresponding ignition protection type. They may only be put into operation in
potentially explosive atmospheres in accordance with the regulations of the responsible supervisory author-
ity.
Ignition protection type, temperature class and characteristics
are shown on the motor rating plate.
Device group II, category 2, assigned zones: 1
This category includes electrical machines of the ignition protection type increased safety “eb”
Device group II, category 3, assigned zones: 2
This category includes electrical machines of the ignition protection type increased safety “ec”
Device group II, category 2, assigned zone: 21
This category includes electrical machines of the ignition protection types protection by enclosure “tb”
Device group II, category 3, assigned zone: 22
This category includes electrical machines of the ignition prot
ection types protection by enclosure “tc”
If the certificate number ends in an X, special conditions in the attached EU(EC) Type Examination
Certificate must be observed.
1.6 Transport and storage
Any damage detected on delivery must be reported to the transport company immediately; if necessary,
commissioning must be prevented.
Transport eyes (attachment points) are of an appropriate size for the weight of the high-voltage machine. No
additional loads may be attached. If necessary, suitable, adequately sized transport equipment (e.g. rope
guides) must be used. Existing transport safety devices must be removed before commissioning. They must
be reused for further transport.
If high-voltage machines are stored, a dry, dust-free, low-
vibration (v eff ≤ 0.2 mm/s) environment must be
provided. Otherwise bearing damage due to standstill may occur.
The insulation resistance must be measured before commissioning. For
values ≤15
⋅
UN [kV
] [MΩ] at 20°C
windi
ng temperature the winding must be dried. Further instructions in the section “Storage regulations” must
be observed.
1.7 Installation, electrical connection and commissioning
The safety instructions enclosed with the motor must be observed during assembly and commissioning. As-
sembly work may only be carried out by qualified personnel who, on the basis of their technical training, ex-
perience and instruction, have sufficient knowledge of
safety regulations,
accident prevention regulations,
guidelines and recognised rules of technology
(e.g. VDE regulations, standards).
In Germany, installation of electrical systems in potentially explosive atmospheres requires the following reg-
ulations to be observed:
BetrSichV
“Industrial Safety Regulation”,
TRBS
“Technical Rules for Operational Safety”
GefStoffV
“Hazardous Substances Ordinance”
IEC/EN 60079-14
“Explosive atmospheres - Part 14: Electrical installations design, selection
and
and erection”
Outside Germany, the relevant national regulations must be observed!
The technical personnel must be able to assess the work assigned to them, recognise possible dangers and
