ABB Relion 670 2.0 IEC Series, Руководство по установке

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Section 5 Mounting
5.1 Required tools
Generally, all the screws included in delivered mounting kits are of Torx type and a
torque screwdriver of the same type is needed (Tx10, Tx15, Tx20 and Tx25).
Use only the screws included in the mounting kit when mounting the
plates and the angles on the IED. Screws with wrong dimension may
damage the PCBs inside the IED.
5.2 Checking environmental conditions and mounting
space
The mechanical and electrical environmental conditions at the installation site must be
within the limits described in the technical manual and IEC60255-1, normal
environment.
• Avoid installation in dusty, damp places.
Avoid places susceptible to rapid temperature variations, powerful vibrations and
shocks, surge voltages of high amplitude and fast rise time, strong induced
magnetic fields or similar extreme conditions.
• Check that sufficient space is available.
Sufficient space is needed at the front and rear of the IED to allow access to wires
and optical fibres and to enable maintenance and future modifications.
• Ensure that convection cooling through the ventilation holes at the top and bottom
of the case is possible to minimize the heating effect within the IED.
1.
Ensure that the amount of dust around the IED is minimized, so that the
cooling effect is not reduced.
It is recommended to install the IED in a cubicle with an IP4X ingress
protection according to IEC 60529, at least at the top surface, to prevent
dust and limited size materials from falling through the ventilation holes at
top and bottom of the IED case. The effect of airborne contaminants will
also be reduced if ventilation of the cubicle is limited.
2. Check that no combustible materials are present in the cubicle.
1MRK514019-UEN A
Section 5
Mounting
670 series 2.0 IEC 21
Installation manual