ABB Foundation LD 810HSE Ex, Быстрое руководство по установке

Страница: 10 / 36

10 Quick Installation Guide LD 810HSE Ex | 2PAA118721
complete units giving the material number stated on the device (marking,
type label).
– Only such auxiliary components may be used in potentially explosive
atmospheres that meet all requirements of European and national
directives and legislation.
– The environmental conditions specified in the manuals have to be followed
strictly.
– The Linking Device is not to be used in systems where cathodic systems
for corrosion protection are in place. Although special precautions such
as additional earthing bridges may allow the use in such systems, the
manufacturer has to be consulted in each case.
– The operator has to provide measures for protection against lightning.
– According to the local conditions and in compliance with the
environmental rules, the operator is responsible to visually inspect the
system and to remove dust settlements every 6 months.
– The company installing the device has to ensure that the transient
characteristic is limited to 40 % above the service voltage.
– Additional precautions have to be taken, if the presence of hydrosulphide,
ethylene oxide and/or carbon monoxide is to be expected. Those
substances are of a vary low ignition energy.
– Icing is not permitted.
Make sure that the sum of power supply voltage and fieldbus
supply voltage does not exceed 60 V DC.