● Case A
Applies to electrical connections in which the permissible torque is normally limited by the
bolt materials and/or the current carrying capacity of the insulators, with the exception of
the busbar connections in case B.
● Case B
Applies to bolts screwed into components made from materials with lower property class
(e. g. aluminum) and to bolts with property class 8.8 according to ISO 898-1.
● Case C
Applies to bolts with property class 8.8 or A4-70 according to ISO 898-1, however only to
bolts screwed into components made from materials with higher property class, e.g. cast
iron, steel or cast steel.
Note
Non-standard tightening torques
Different tightening torques for electrical connections and bolted connections for parts with
flat seals or insulating parts are specified in the relevant sections and drawings.
See also
Finishing connection work (Page 64)
Technical data and drawings
B.1 Tightening torques for screw and bolt connections
LOHER CHEMSTAR 1PS5
128
Operating Instructions 03/2014
Summary of Contents for SIMATIC S5 1P 243
Page 2: ...11 03 2014 02 49 V4 00 ...
Page 12: ...Introduction LOHER CHEMSTAR 1PS5 12 Operating Instructions 03 2014 ...
Page 20: ...Safety notes 2 11 Ventilation LOHER CHEMSTAR 1PS5 20 Operating Instructions 03 2014 ...
Page 66: ...Electrical connection 6 2 Connecting LOHER CHEMSTAR 1PS5 66 Operating Instructions 03 2014 ...
Page 124: ...Disposal 11 4 Disposal of components LOHER CHEMSTAR 1PS5 124 Operating Instructions 03 2014 ...
Page 136: ...Quality documents C 4 Data LOHER CHEMSTAR 1PS5 136 Operating Instructions 03 2014 ...
Page 140: ...Index LOHER CHEMSTAR 1PS5 140 Operating Instructions 03 2014 ...
Page 141: ...AC EC Declaration of Conformity U161 AB EC Declaration of Conformity U163 AA R No 20000h U165 ...