VLF test 0.1 Hz · Sheath fault test
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Commissioning test after new construction · extension · repair
Why does a commissioning check have to be carried out?
- Compliance with legal, technical and operational regulations
- Tests according to German BGV A3
- DIN VDE 0276 Part 620 and Part 621 · Din VDE 0105
- Avoidance of accident hazards
Quality control !
- Increase of operational and supply security
- Quality control of assembly & material
- Avoidance of malfunctions and failures
- Securing the network quality
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Value retention of your plant
Exam options & types :
- VLF sine 1 … 42.5 kV (60 kV peak) 0.1 Hz
- VLF Square-wave voltage 1 … 60 kV
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Gas-insulated (SF6) & air-insulated systems
Sheath fault testing
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Quality control of installation & material
Cable location · Working with sound transmitter / receiver
Location of :
- Buried cables · pipes · pipes
- ≤36 kV Medium voltage · Low voltage · Telecommunications, telecontrol, cable television and communication lines · Empty pipes · Metal pipes · Pipe ends · Transfer pipes
- Path Determination · Depth determination · Plan correction · Plan completion
- As a rule, the lines can remain in operation to determine the route
cable selection
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buried cable · Cable whose affiliation can not be determined unambiguously, by design or directly
phasing
- Preliminary test of buried cables · Overhead line · in earthed condition · whose phase assignment is not known · on sockets and cable ends
- Check · before switching on switchgear
error measurements
- buried cables · line whose fault is earth-sensitive
- Sheath fault -Check, Pre-location and post-location (fine location)
earth Testers
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of new and existing earth electrodes
I am constantly trying to expand the measurement program bezw. to complete
