Installation and EMC guidelines
1.9 Fire protection
SIMATIC TDC hardware
18
System Manual, 08/2017, A5E01114865-AL
1.9
Fire protection
As output power exceeds the limit of circuitry with power limiting to IEC 61010-1 /
IEC 61131-2, malfunction of a SIMATIC TDC component may pose the risk of fire according
to IEC 61010-1 / IEC 61131-2. In order to prevent spreading of fire, suitable measures must
be taken to prevent ignition of adjacent parts or components as a result of burning parts that
possibly drop out of a component.
Two examples of a fire protection barrier to IEC 61010-1
Example 1
Partition below the rack
Example 2
Metal panel
Accepted perforation of a metal panel
Minimum thickness [mm]
Maximum diameter of the holes
[mm]
Minimum hole pitch, center-center
[mm]
0.76
1.1
1.7 (35 holes/100 mm
2
)
0.76
1.2
2.4
0.89
1.9
3.2 (10 holes/100 mm
2
)
0.99
1.6
2.7
Aotewell Ltd
www.aotewell.com
Industry Automation
HongKong|UK|China
+86-755-8660-6182