Before proceeding to find a underground cable fault, the necessary step is to trace the route of the underlying cable. If the route of the cable is unknown, we cannot proceed to find the cable fault location. Sometimes the routes of the cables may be documented, which can be used in the process of cable fault locating. But, in practically many times the route of the cables are unknown. Hence route tracing of the cable is the crucial part for the cable fault finding.
The route tracing of the cable can be done by two methods:
- Active Location: This method involves locating a specific line/cable by means of injecting specific frequency signal using a transmitter and the tracing it with a receiver.
- Passive Location: This method involves looking for unknown lines by detecting electromagnetic field with the help of a detector or receiver. Though the passive location method does not allow us to distinguish between the type of line, it is necessary prior to an excavation work. Some underground cables may already be energized and, hence, can be located by scanning for their electromagnetic fields. Non-energized underground utilities or cables may be located by scanning re-radition of signals induced on the utility by a radio transmitter.
We, Shirwaikars Electrical Enterprises uses C-Scope Signal Generator and traces the signal using C-Scope Cable avoidance tool operating in the “Generator mode” for route tracing of the cable. Also it can measure in power mode – Charged cable tracing & the RADIO mode detects re-radiated Radio type signals that are often present on metal pipes and cables allowing their position to be determined using just the Cable Avoidance Tool alone.
The C.Scope Cable Avoidance Tool XD has three familiar detection modes (POWER, RADIO AND GENERATOR) to select from. Each mode provides its own specific advantages. Many operators will be familiar with these operating modes from using old school C.A.T and Genny products from the past.
The POWER mode is the quickest way to detect most buried electricity cables by detecting the signal created by the electrical current itself.
The RADIO mode detects re-radiated Radio type signals that are often present on metal pipes and cables allowing their position to be determined using just the Cable Avoidance Tool alone.
The GENERATOR mode is used to detect the signal applied to a metal pipe or cable by a C.Scope SGA or SGV Signal Generator. In addition the Generator mode can be used to detect the signal being transmitted by a C.Scope Sonde for non-metallic pipe tracing.
When combined with a C.Scope SGA or SGV Signal Generator and accessories, the Cable Avoidance Tool XD becomes a versatile, all round pipe and cable locating and tracing package. Robustly made and equipped with LCD meter, detachable loudspeaker and easy-to-operate fingertip controls the C.Scope Cable Avoidance Tool is the ideal Locator for all levels of staff who need to be able to detect buried services quickly and with confidence.
