ABB LD 800HSE, Руководство пользователя

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Linking Device Usage Appendix D Linking Device for Zone 2 Explosion and Protection Environment
128 3BDD011677-600 A
– Assembly and maintenance must be done only if atmosphere is Ex-free
and a hot work permit is in place.
– Additional precautions must be considered if the presence of hydro
sulphide, ethylene oxide and/or carbon monoxide is expected, those
substances are of a very low ignition energy.
– Where these substances are present and any substance of explosion group
IIC is present, and yet a potentially explosive atmosphere is expected to be
present, only non-sparking tools must be used.
Linking Device Usage
The linking device is only approved for intended and appropriate use. In case of
non-compliance, the warranty and manufacturer's liability does not apply.
• The auxiliary components that meet all requirements of European and national
directives and legislation can be used in potentially explosive atmospheres.
• The environmental conditions specified in the manual must be followed
strictly.
• The linking device is not used in systems where cathodic systems for corrosion
protection are in place. Although special precautions may make that possible
(additional earthing bridges), the manufacturer must be consulted in each case.
• The operator must provide measures for protection against lightning.
• The maximum surface temperatures depend on the circumstances of installing
the equipment, and the customer or operator is responsible for those. During
intended operation no temperature increases of > 20 K are to be reached at the
outside parts of the enclosure. Thus temperature T4 is maintained.
• All outside parts are made from a suitable low-sparking materials. However,
the operator must inspect any ignition hazards that may be caused by sparks
when operating the entire machine. Parts containing light metal alloys have to
be installed in a way that they are protected against external impact.
• In explosion group IIC and Zone 2 no projected plastic surfaces > 20 cm³ are
allowed; in IIB or dust-Ex, 100 cm² may be reached.
• Dust settlements must be removed regularly.