Secondary Distribution Switchgear Cables test device
Post on 25-Feb-2022
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1
Cables test deviceFBX
Secondary Distribution Switchgear
Instructions
1 General
Additional information to that given in
instruction manuals AMTNoT131-02
and AMTNoT132-02.
� Apply the general safety instructions for
electrical locking-out operations and the
special rules for the network concerned.
� The operations described below are
carried out on de-energized equipment.
2 Presentation
Each Functional Unit C is equipped with a cables
test device.
This device allows for cable testing or searching
for a fault on the cables, whilst avoiding the with‐
drawal of the plug-in connectors. It is protected
by a mobile panel (1) locked by a key-bit key (2).
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2
3 Intervention conditions for a cables test
Intervention Busbar Cables Switch Earthing switch
Normale De-energized De-energized Open Closed
Possible Energized De-energized Open Closed
Locking out of the Functional UnitAny locking-out operation must be carried outin accordance with the special rules for thenetwork concerned.
Tools necessary:- Open-ended spanner size 10; 16- Ratchet wrench + extension + 13 mm socket
Accessories not supplied:- Earthing device- Insulating gloves
4 Preparation for the cables test
� Lock-out Functional Unit C:switch open, earthing switch closed.
� Insert and turn the key.� Lift the pull control device to unlock the
panel.
� Pull out the panel towards you.
� Extract the panel and leave it to hang atthe end of its earth connection wire.
� Presentation of the device.
0 Key
- 1 Phase ID mark
- 2 Place for screwing in theextension
- 3 Earthing braid
- 4 Earthing bar
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2 34
5 Fitting the earthing braids in place
CAUTIONThe dismantling of the earthing bar must onlybe made when the earthing block isconnected and in place.
� Recover the 3 extensions. � Screw in and tighten each extension
(10 mm open-ended spanner).
8Nm
� The 3 extensions screwed on preventthe panel from being fitted back on.
� Position the main grounding clamp onthe earthing bar.
� Tighten the grounding clamp.
3
� Position and tighten the groundingclamps on each phase.
Ensure that the clamps are positioned asshown in the 2 following views.
CAUTION
� The tightening clamps must be vertical,directed towards the bottom.
� Position the clamps at the end of eachextension.
� Unscrew the 3 fixing nuts on the earthingbar (16 mm spanner).Note: These 3 nuts shall need to be
tightened to torque.
� Extract the earthing bar. � Leave the bar to hang at the end of theearthing braid.
� Example of a test on phase L3:- Fit the insulating gloves,- Loosen the clamp.
� Proceed with the test on L3.
Schneider Electric Energy France
35, rue Joseph Monier
CS 30323
F - 92506 Rueil-Malmaison Cedex
RCS Nanterre 511 746 356
Capital social 6 909 620 €
www.schneider-electric.com
AMTNoT158-02 revision: 01
As standards, specifications and designs change from time to time, please ask for confirmationof the information given in this publication.
Design: Schneider Electric
Photos: Schneider Electric
12-2010
� 2
010
Schneid
er
Ele
ctr
ic -
All
rights
reserv
ed
6 At the end of the tests
� Position the earthing bar back in place. � Tighten the 3 nuts to the indicatedtorque.
The efficiency of the short circuiting of thecable heads, depends on the tightening ofthe earthing bar.
8Nm
CAUTION
8Nm
� Remove all of the grounding clamps, oneach phase and on the earthing bar.
� Remove the 3 extensions.
� Store the accessories.� Refit the panel in place.
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