Further Understanding Cable Fault Location

Our human are living in the environment that always be surrounded by light and electicity. Imagine a day when there is no electricity at home, the first idea come to us is there must be a fault need to be fixed. You should not only need to known what a cable fault is but also what kind of instruments needed to get you out of the bad situation. This article will give a brief introduction about cable fault location as well as the working process of a typical cable fault locator.
A cable consists of multiple wires or electric conductors that are held together with a covering. The cables are frequently used for the distribution of the electrical energy. Although they are most highly developed, there are still malfunction in the cable system. Cable fault location is such process of locating periodic faults, such as insulation faults in underground cables, and is an application of electrical measurement systems.

Cable Fault Location is the process of locating the short circuit faults, cable cuts, resistive faults, intermittent faults, and sheath faults. Power cable fault locator is designed to locate cable faults, pinpointing the fault location, route tracing, cable identification, voltage withstand test and cable information managementCable faults are damage to cables which effect a resistance in the cable. If allowed to persist, this can lead to a voltage breakdown. There are different types of cable faults, which must first be classified before they can be located.
Contact fault: There are two kinds of contact fault, one is the contact between conductor and screen will generating a varying resistance, the other is the contact between multiple conductors will also generate a varying resistance.
Sheath faults: Sheath faults refers to the damage of the cable sheath which allows the surroundings contact with the cable screen.
Moisture caused faults: Water penetrates into the cable sheath and contacts the conductors. Impedance changes at the fault location make measuring more difficult. The resistance usually lies in the low-ohmic range.
Voltage Disruptions: Voltage disruption is caused by the combination of series and parallel resistances, usually in the form of a wire break.
All of the fault listed above will either cause the breakout of the electric or a electric exceed. As we known each cable has a limit of power supply. When this limited exceeds, or the wires becomes weak, there will be a short circuit causing a spark and then a minor or major explosion. To fix this issue, a cable fault locator is needed. To locate a fault in the cable, the cable must first be tested for faults. During the cable testing, flash-overs are generated at the weak points in the cable, the cable will be fixed either by providing new wiring, or increasing the wire strength. During the working process of the cable fault locator, the cable fault finder receives signals from the locator and the arrow on the instruments points to the position where the digging and maintenance required to be done.
FiberStore now offers a full series of power cable fault locators that will automatically detect the cable fault, which will greatly reduce the time and training required to find these problems. Our cable fault location instruments systems are applicable to all types of cable ranging from 1 kV to 500 kV and all types of cable faults such as short circuit faults, cable cuts, resistive faults, intermittent faults, sheath breaking, water trees, partial discharges. Know more informations of exporters and suppliers of electric or fiber optic tester.

650nm Fault Locator for Perfect Optical Network Fault Locating

FiberStore has launched series easy-to-use visual fault locators for perfect optical network fault locations. 650nm Visual Fault Locator among that, is editor here happy to introduce. 650nm Visual Fault Locator is one of the most common used types of fault locators with the 650nm visible laser source and output power of 10mW for testing single mode or multimode fiber by emitting a bright beam of laser light into a fiber to allow users to see a break as a glowing or blinking red light. This visual fault locator is intended for examining all kinds of patch cords, ribbons or bunched pigtails in the installation and maintenance of fiber optic networks, which is also regarded as the perfect fiber optic testing tools for engineers working on fiber optic networks, telecommunications and CATV maintenance.

The handheld 650nm optical visual fault locator, model BML 201 is perfect for optimizing mechanical fusion splicing and end-to-end fiber identification. It offers a maximum measurement distance of up to 10km and boasts a rechargeable battery supporting 12 hours continuous work. The energy saving design of it makes it will automatically shut down if there is no operation for about 10 minutes. The universal fiber adapter of this visual fault locator can be connected with all 2.5mm adapters such as FC, SC or ST.

FiberStore.com, a good place for purchasing or wholesale quality visual fault locator and cable fault locator, has all of our products detailed information displayed online. Welcome to visit and register.

A Small Make up Knowlege for Visual Fault Locator
Visual fault locator a very cost-effective and power-saving fiber test tools to locate imperfections, fiber cuttings, micro or macro bends in fiber optic cable links. It can come in a pen shape, handheld portable types. A visual fault locator consists of laser light source, pulse modulation circuit board, light coupling lens and fiber optic connector adapter.

In the working process of the visual fault locator, it injects a highly visual red color laser light into the fiber optic cable though a built-in connector adapter. The red laser light can be switched between continuous mode and pulse mode with a 1~2 Hz frequency and 60ms duration. There are two types of connector adapters: 2.5mm and 1.25mm in diameter. 2.5mm version is for FC, SC and ST connectors, while 1.25mm version is for LC and MU connectors. Light source of the visual fault locator is usually a high power class 2 laser diode at a wavelength of 635nm, 650nm or 670nm.

Visual fault locators can work with both single mode and multimode fibers. Fiber distance, the longest fiber length where you can see the leakage light freely for multimode fiber is 10km, and 5km for single mode fiber.

Fiber optic visual fault locator is regularly used for testing and locating breaks in LANs, FDDI, ATM, fiber data links and loops, telephones, ships and other vessels. It can be used as an independent fiber-link basic troubleshooting instruments or in conjunction with an OTDR to pinpoint faults. Typical industrial applications are fiber optic networks, telecoms network and CATV network maintenance.