نحوه عیب یابی
اتصالی کابل
در صورتیکه مقاومت سیم به سیم یک کابل قدرت حدود 500 مگا اهم باشد ( روی ولتاژ 500 ولت مگر ) یعنی کابل قدرت خوب است
اگر حدود 300 مگا اهم باشد یعنی متوسط
اگر زیر 100 مگا اهم باشد یعنی وضعیت مناسبی ندارد
همین تست بمنظور هر سیم به زره نیز باید انجام گردد
1 : در ابتدا لازمست توسط
دستگاه TDR حدود فاصله اتصالی پیدا شود :
مشخصات فنی:
TDR-410 insobs v1.06 GB
datasheet_TDR-410-420 EN v1.02.1
قیمت حدودی : TDR 420 SONEL : مبلغ 140,000,000, تومان
Product Description
- Location
damaged power cables.
- Fault
location copper telecom cables.
- Coaxial
cable fault location.
- Fault
location wiring infrastructure.
- Detection
of breaks, short circuits, damage caused by dampness and other changes in
impedance of the cable.
- Graphic
depiction of damage the cable with automatic indication the distance to
fault on the screen.
Features :
- automatic
or manual mode:
- the
automatic fault location (AFL),
- mode
with manual range selection and sensitivity,
- single
measurement triggered manually or scanning continuous,
- 11
available ranges from 7 m to 4000 m selected in manual mode or matched
automatically,
- maximum
length of cable up to 4000 m one end of the cable,
- "Dead
zone" measure limited to 0.5 m,
- 2.5
"LCD screen with backlight,
- scan
automatically or manually trigger,
- sensitivity
set manually or automatically adjusted,
- adjustable
impedance matching,
- propagation
coefficient adjustment 1% to 99%,
- waterproof
and resistant to mechanical housing.
- small
size and weight.
- economical
power system - 30 hours of continuously scan on one battery set.
This
item includes :
- Black
Crocodile Clip 1kV 20A
- M2
Carrying Case
- 1kV
Red Crocodile Clip 20A
- Double-Wire
Test Lead 0.6m
2 : سپس لازمست مسیر
کابل توسط ردیاب کابل مشخص شود :
نمونه ردیاب کابل
:
مشخصات فنی :
DATASHEET LKZ 1500
LKZ-1500 insobs v2.04 GB
قیمت حدودی :LKZ2000 _ SONEL : مبلغ 1,100,000,000 تومان
Product characteristics
The LKZ-1500 locator set, consisting of a transmitter and receiver,
allows for location, identification and tracking of the route
of objects buried in the earth, i.e
- power cords and
cables, control cables, telecommunications cables,
- underground
elements of lightning protection systems, cathodic protection
systems,
- water and
sewage systems,
- fuel
transmission systems (pipelines, gas pipelines)
- heating systems
and pre-insulated pipes.
The sets of LKZ series are an invaluable support in earthworks carried
out for various industries, including energy, installation, construction,
railway, telecommunications, water and sanitary, heating, geodetic and many
others
LKN-1500 transmitter introduces a specific signal to the tracked objects,
enabling LKO receivers to route in the active mode. The receivers operate also
in a passive mode that uses the network frequencies and telecommunications
signals present in the facility
LKO-1500 receiver facilitates the work of the user to with many
features, including visualization of the cable routing in the tested object or
a greater number of frequencies to choose from. It is also distinguished by the
option of tracing cable short-to-earth faults with the use of additional
accessories
Transmitter
- Transmission of
double frequency signals.
- The mode of
limiting the voltage of the transmitted signal.
- Transmitter
power: 1 W, 2 W, 5 W, 10 W.
- Operation in
direct galvanic or inductive connection mode - internal transmitting
antenna.
- Compatible with
transmitting clamps.
- Works with
Sonel transmitting clamps at frequencies up to 1024 Hz.
- Continuous or
interval mode of operation that extends battery life.
- Case housing.
Receiver
- Active mode:
- work with
LKN-1500 transmitter at the frequencies of 273 Hz, 526 Hz, 1024 Hz,
8928 Hz, 33 kHz,
- work with
transmitters other than LKN-1500 at the frequencies of 491 Hz, 512
Hz, 982 Hz, 2000 Hz, 2048, Hz 8440 Hz, 9828 Hz, 10000 Hz.
- Passive mode – work at the
frequencies of:
- 50 Hz, 60 Hz,
100 Hz, 300 Hz, 550 Hz, 1450 Hz,
- RADIO (10...36
kHz),
- SB (48 Hz...14
kHz).
- Location depth
up to 10 m.
- Operation with
external probes.
Locator functions
- Determine the
direction of cable placement, position of the cable relative to the
receiver axis (has a compass function).
- Determine the
current and residual depth of the cable, both in active mode (with
transmitter) and in passive mode (without transmitter).
- Save the route
of placing an object on the map. Memory up to 10,000 coordinates.
- Possibility of
finding damaged cable locations.
The device, with any GPS module and dedicated program (LKZ Terminal),
that is provided with the set, will allow you to plot the route of the
underground object and mark the location of single measurement positions on the
map. Communication of the LKZ with GPS module is through the Bluetooth
Sonel LKZ Terminal
The application works with the Sonel LKZ-1500 wire and cable locator. By replacing the
external GPS module, it allowing the user to define and record the geographic
coordinates of the cable route
The application additionally enables
- live
positioning preview,
- measuring the
distance to a specific point on the route,
- export of
routes saved in LKO-1500 to the phone’s memory,
- reading routes
from the phone’s memory,
- preview of the
saved values of all parameters,
- data export to
PC
Sonel LKO Terminal
A dedicated PC program for handling data stored in Sonel LKO-1500. It allows you to
map a route from your location and read the data stored in the receiver
The data includes
- coordinates of
the place of measurement according to GPS information,
- reading the
depth of the object and value of current flowing in it,
- the direction
of the forced current,
- operating
frequency,
- date and local
time at the time of measurement according to GPS information,
- export of route
data to a file.
3 : سپس با داشتن فاصله و مسیر کابل منطقه مورد نظر مشخص
می شود
حال لازمست نقطه دقیق آن مشخص شود پس توسط دستگاه
فرستنده پالس ، پالس به کابل ارسال می شود و توسط گیرنده نقطه مورد نظر مشخص می
شود :
یکی از این دستگاه ها دستگاه زیر می باشد :
Tanbos T20 TDR 0-35KV Underground Power Cable
Fault Location System Locator Equipment Tester Detector
لازم بذکر است مقاومت 1 کیلومتر سیم نمره 35 برابر 1.14 خواهد بود