Instruction
Manual
ESSG
page
25
___________________________________________________________________________
Immediate action is required to cordon the working site to avoid immediate hazards for
nearby personnel.
The cable must be checked with suitable measuring equipment by an electrician to
determine the voltage status. Only when the voltage-free state of the cable is definitely
determined the cutting head can be approached.
The cutting head (Pos.-No. 11) is damaged during the cutting cycle.
=>
In case the cutting cycle could be completed despite of the damage the cutting head
must be returned to the manufacturer for a damage report and repair.
Insulating fluid is leaking.
=>
Stop cutting cycle, actuate the retract button (Pos.-No. 6) and examine the safety
cutting unit for leakage’s. If the leakage can not be positively located the complete unit
must be returned to the manufacturer for service.
Flashing of the light diode display (Pos.-No. 2)
=>
Exchange battery (Pos.-No. 13). See chapter 4.3 for more information about the special
functions of the tool.
The cutting tool does not reach the final operating pressure.
=>
Stop the cutting process. Press the retract button (Pos.-No. 2) and the trigger (Pos.-No.
1) simultaneously and continuously for about 10 sec. Is the malfunction not be
eliminated by this attempt the tool has to be returned to the manufacturer.
7. How to act after a short circuit
After a short circuit at a voltage level
≥
6 kV it is possible that the blades do not retract by
themselves. In most cases this will not cause significant damage on the safety cutting unit.
When cutting a cable (e.g. NKBA or NEKEBA 95-120 mm²) which is accidentally live
with a nominal voltage exceeding 10 kV a earth contact with a light arc (not visible from
outside) occurs after 13 to 15 sec. After an other 0,4-17 sec a 2- respectively 3-pole short
circuit with an intensive light arc burning towards the outside occurs. With currents
exceeding 5 kA the cutting head melts and the blades and guidance will get heavily
damaged. With currents exceeding 10 kA the cutting heads will most likely be propelled
away from working site.
Give the cutting head time to cool down before you approach the working site respectively
the cutting head. This is of special importance if the cutting head was exposed to the light
arc during the complete short circuit.
After a short circuit damaging more than the blades of the cutting head the head must be
returned to the manufacturer for service.
Summary of Contents for Klauke ESSG120/2
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