Mounting and Installation
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226997 / 825060300050
2019-02-18·BA00·III·en·04
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Ex d enclosure made from aluminium/flameproof
enclosure; 8250/0 series empty enclosure,
8250/1 series terminal box,
8250/5 series control panel/control box
6.2
Installation
6.2.1 Conductor Connection
Select suitable conductors that do not exceed the permitted heating temperature within the
enclosure.
Ensure that conductors have the specified cross-sections.
Guide the conductor insulation to the terminals (for the stripping length,
see "Technical data").
Do not damage the conductor when stripping the insulation (e.g. by denting it).
Fit the core end sleeves properly using a suitable tool.
If the system is equipped with all possible terminals and live conductors, and the maximum
current load has been reached, ensure that the length of a conductor from the screw
connection to the clamping unit does not exceed the diagonal planes of the enclosure.
Operation under difficult conditions, such as on ships or in strong sunlight,
requires additional measures to be taken to ensure that the device is installed correctly,
depending on the operating location. Further information and instructions on this can
be obtained from your regional sales contact upon request.
DANGER! Risk of explosion due to intense heating inside the enclosure!
Non-compliance results in fatal or severe injuries.
Ensure that distances between Ex e electric circuits and Ex i electric circuits comply
with standards (EN IEC 60079-11).
Select suitable conductors that do not exceed the permitted heating temperature
within the enclosure.
Pay attention to the specified cross-sections.
Attach the core end sleeves properly.
Ensure that the maximum permitted power dissipation value for built-in
components is not exceeded (see chapter "Technical data").
DANGER! Risk of explosion due to improper installation!
Non-compliance results in fatal or severe injuries.
Install the device carefully and only in accordance with the safety notes
(Chapter "Safety").
The installation steps stated below must be carried out very precisely.
The necessary technical details/data on electric installation can be found in the following
documents:
"Technical data" chapter in these operating instructions
Documentation and data sheets provided by the terminal manufacturers
Documentation and data sheets for the installed devices (e.g. for specifications with
regard to equipotential bonding, earthing and intrinsically safe electric circuits)
Specification
Summary of Contents for 8250/0 Series
Page 65: ......
