Check for the corre:t tightening torque on all accessible bolt
connections.
5
t
Y'f.'ngth
I
8.8
.A2-70
!
A2-80
I
.
grade
I
I
I
~
.'---'_.----
--------.,.-··:------1-----------------: --------------.~-~-
Nm
··:tlb
I
Nm
ftlb
I
Nm
ftlb
I I
I
I
i
I
M6
10 7.4
I
10
).4
I
13.7
10.1
I
I
M8
24.8
:.8.3
I
24.8 18.3
I
33 24.4
I
I
MIO
49
]6
: -""49
36
I
65 48
I
M12
86 li3
I
83
61
I
110
81
I
I
M16
210
:.55
I
202
149
I
270 200
I I
M20
410
]03
I
394
291
I
525
388
I
I
M24
710
!i25
I
377 278
I
I
I
Table 84:
Tighteninq torques
for bolts
and nuts
This chapter descril:es the replacement of the arcing contacts as
required in table 83. Chapter 3.9 describes the disassembling of the
complete pole column.
Replace the arcing CJntacts in closed, dry and undusty rooms only.
Do not replace the I:rcing contacts in the substation in inclement
weather conditions or in windy conditions.
Clean all funct i ona'l elements with a pi ece of cloth that has been
soaked in a 1coho 1. and grease accord i ng to the greas i ng
instructi.<:ns. Replac~ parts when necessary.
If bolt connections have been unscrewed during work, replace the
securing elements.
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