What should be paid attention to in the operation of the cable fault tester?

2022/05/24

Author: Noyafa–POE Tester

What are the precautions for the operation of the cable fault tester? Cable fault tester manufacturer Cable fault tester What should be paid attention to in operation? 1) First of all, list the possible causes of the fault and the basic conditions of the cable, such as whether the fault occurs in the operation of the cable fault tester, what should be paid attention to? What matters should be paid attention to in the operation of the cable fault tester manufacturer? 1) First, list the possible causes of the failure and the basic conditions of the cable, such as whether the failure occurred during operation or trial operation, a new cable or a cable that has been running for a long time, the approximate length of the cable, whether there is a connector in the middle of the cable, the previous cable Whether there is a fault, whether the cable is directly buried or laid in the cable groove, the type of cable, etc. 2) We must make sure that the cable is not tested before it is powered on, both ends of the cable must be disconnected from other lines to ensure that the cable is not powered. The environment around the cable is in a safe state.

3) Testing personnel must pay attention to operational safety. Each phase of the cable should be short-circuited and discharged before each connection to the cable. When discharging, one end of the short circuit must be grounded, and the other end must be connected to each phase of the cable to discharge separately.

For other electrical appliances, such as capacitors, test transformers, etc., pay attention to discharge before wiring and wiring. In short, in order to form an operating habit, do not be afraid of trouble before each operation, pay attention to whether the operating appliance is connected to the circuit, and then perform the operation again. 4) In the test, first use the low-voltage pulse function of the flashover meter to test the full length of each phase of the cable to see if the three-phase armored test waveforms are consistent.

For most high resistance faults, the waveforms of the phases are consistent. For low-resistance faults and high-resistance faults with open-phase faults, the fault phase test waveform is inconsistent with the full length of the cable under test, so low-voltage pulses can be used to directly measure the fault distance. 5) When the cable fault tester uses the high-voltage flashover test, the high-voltage flash method can be used to test whether the cable fault is a high-resistance fault or a low-resistance fault.

For low-resistance or disconnection faults that can be directly tested by low-voltage pulses, it is generally necessary to use high-voltage flashover to verify the test and accurately locate the fault point. ?6) Complete the high-voltage flashover test, determine the fault distance, and accurately locate the fault. When used, fault location and path detection can be performed simultaneously.

Shenzhen Noyafa Electronic Technology Co., Ltd.

CONTACT US
Just tell us your requirements, we can do more than you can imagine.
Send your inquiry

Send your inquiry

Choose a different language
English
Magyar
Ελληνικά
한국어
Türkçe
русский
italiano
Español
Português
Polski
français
Deutsch
日本語
Nederlands
Tiếng Việt
ภาษาไทย
Latin
العربية
简体中文
繁體中文
Afrikaans
አማርኛ
Azərbaycan
Беларуская
български
বাংলা
Bosanski
Català
Sugbuanon
Corsu
čeština
Cymraeg
dansk
Esperanto
Eesti
Euskara
فارسی
Suomi
Frysk
Gaeilgenah
Gàidhlig
Galego
ગુજરાતી
Hausa
Ōlelo Hawaiʻi
हिन्दी
Hmong
Hrvatski
Kreyòl ayisyen
հայերեն
bahasa Indonesia
Igbo
Íslenska
עִברִית
Basa Jawa
ქართველი
Қазақ Тілі
ខ្មែរ
ಕನ್ನಡ
Kurdî (Kurmancî)
Кыргызча
Lëtzebuergesch
ລາວ
lietuvių
latviešu valoda‎
Malagasy
Maori
Македонски
മലയാളം
Монгол
मराठी
Bahasa Melayu
Maltese
ဗမာ
नेपाली
norsk
Chicheŵa
ਪੰਜਾਬੀ
پښتو
Română
سنڌي
සිංහල
Slovenčina
Slovenščina
Faasamoa
Shona
Af Soomaali
Shqip
Српски
Sesotho
Sundanese
svenska
Kiswahili
தமிழ்
తెలుగు
Точики
Pilipino
Українська
اردو
O'zbek
Xhosa
יידיש
èdè Yorùbá
Zulu
Current language:English