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NTEG R ATED S A FE T Y D E V I CE
| INSTRUCTION MANUAL
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3. Installation
3.1
Mounting instruction
Application to a transformer tank
• Ø 60 mm ± 1 mm diam. hole on the tank
• Flat gasket (provided with the unit)
• Stainless steel fixing brackets (4 pcs packed)
• Stainless steel flat washers according to UNI 6592
Ø 8,4 mm (4 pcs packed)
• Stainless steel spring washers according to UNI
1751 Ø 8,4 mm (4 pcs packed)
• Stainless steel M8 nuts according to UNI 5588
(4 pcs packed).
Tighten the nuts in position 1,2,3,4 with torque nut 3
Nm to 4 Nm in a cross pattern; repeat the operation
following the same sequence until the suggested
value (6 Nm to 8 Nm) is reached.
Due to the deformation of the cover during lifting of
the transformer, an oil leak could be possible. It is
suggested to use covers of suitable thickness (min.
6-8 mm).
PROTECTION CAP
REMOVE BEFORE
INSTALLATION !
TIGHNTENING TORQUE
6-8 Nm
N°4 THREADED PINS
AT 90° OR
N°3 THREADED PINS
AT 120°
M8
Ø 60 ± 1
Ø 97 ± 2
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