Vishu Cable Industries Narela, Delhi

Vishnu Cable produces LT Power and control Cable with XLPE Insulation of Voltage grade upto 1.1 Kv conforming to Indian and various International Standards.Cross Linked Polyethylene (XLPE) :XLPE means crosslinked Polyethylene. The compound is based on high molecular weight polymer. High degree of crosslinking is attained in the processed form and thus attains excellent electrical and mechanical properties.Advantages of XLPE Cables : Higher current rating allows to select lower size of XLPE cable compared to PVC cable Higher short circuit rating 250°C compared to 160°C that for PVC cables Resistant to heat deformation while PVC is prone to heat deformation Respective short circuit/overload condition is reliable Lower dielectric loss Jointing & Termination is easy Lighter in weight considering lower overall diameter

PVC rapidly replaced rubber for wiring cables and for Power cables insulation in Europe, shortly after 1945 and 1950 respectively .In India, the PVC power & Control Cables came into operation in early 1960s. The use of PVC provided cables of excellent quality which were clean and much easier to handle. Further, simplified terminators and jointing techniques make these cables eminently suitable among other applications for Industrial and Mining installation.  Advantages of PVC Cables : The insulation resistance and breakdown strength are practically unaffected by moisture. These cables are thus suitable for laying even under water. Cables can be overloaded for short periods without any appreciable effect on cable life. The cables can be laid vertically and on steep slopes as there is no impregnating compound involved. The cables are flame retardant since PVC ignites with great difficulty and is self extinguishing These cables are immune to chemicals normally encountered in practice. Due to their lightweight, PVC Cables are easy to install and handle. Small bending rapider permit the termination of these cables in limited space. Low tension PVC Cables do not normally require sealing ends, when terminated indoor. The terminations can therefore be effected quickly and economically. PVC Cables have tough but smooth outer covering and are thus abrasion proof. PVC cables are not affected by vibration. PVC Cables have high short circuit capacity since they can withstand a high transient temperature without any deformation of insulation or displacement of conductor. PVC Cables have a long service life.

Vishnu Cable Industries manufactures a wide variety of cables suitable for process instrumentation. In the projects related to power generation & distribution, chemical & fertilizer industries and various other types of engineering industries, the process instrumentation plays a vita role in measurement, supervision and control of the process. Introduction of microprocessor based/computerized instrumentation has demanded stringent quality requirements along with special electrical parameters for instrumentation cables. Very low level electrical signals pass between measuring end and display units/controllers which are situated far off. These low level signals are prone to external noise pickups and heavy silenuation during transmission.All this means that the cables to be used for instrumentation should be designed and manufactured very carefully, Vishnu Cable Industries, with its meticulous efforts in maintaining quality, stringent in process control during manufacture and the knowledge of cable designing, is proud to say that it is capable of supplying instrumentation cables meeting any Indian/International standard or a specific requirement desired by project authority.

Vishnu Cable is manufacturing a new range of electrical wires known as PVC/FRLS/HR Insulated Single/Multi core cables, which provides additional safety and security. The wires bear the mark of IS: 694: 1990. Each wire is fabricated using 99.97% pure, electrolytic grade, bright-annealed bare copper with more than 100% conductivity. Copper guarantees higher percentage of electrical energy saving which eventually helps in reducing the electricity bills. The conductor is made of multiple strands of finely drawn copper wires thereby offering greater flexibility, which makes these wires ideal for conduit wiring. This FR PVC compound has a high oxygen and temperature index. The wires are wadded with a flame retardant (FR) PVC compound, which helps to control the spread of fire even at very high temperature. It also protects against electrical shock and short circuit. All wires are subjected to high voltage spark testing to ensure that no weak spots are there in the insulation.  

We are the best manufacturer of our products. We are manufacturing all type of LT Power and Control Cables, FR, FRLS, Zero Halogen and other Special type of cable as per BIS standard, International Specification and Customer’s additional Requirement.

Aerial Bunched Cable (ABC) Is A Very Novel Concept For Overhead Power Distribution. ABC Provides Higher Safety And Reliability Compared To Bare Conductor Overhead Distribution System. The Other Advanctages Are Lower Power Losses And System Economy By Reducing Installation, Maintenance And Operation Cost. This System Is Ideal For Rural Distribution And Specially Suitable In Difficult Terrains Like Hilly Areas, Forest And Coastal Areas Etc.ABC Is Also Considered As A Better Choice For Power Distribution In Densely Populated Areas Where Laying Of Underground Cable Is Either Difficult Or Extremely Expensive. This Is Attributed By Narrow Lanes And By-lanes Of Congested Urban Areas. Needless To Mention That ABC Is A Better Choice Due To The Flexibility Of Re-routing Demand, Should There Be Any Changes In Urban Development Plan.Bare Overhead Transmission Lines Are More Prone To System Failures Causing Immense Loss And Inconvenience To The Consumers.Aerial Bunched Cables Systems For LT Have Been Introduced Across The Globe To Arrest Such Problem. It Is Basically A Compromise Between Insulated Power Cable System And Bare Overhead Conductor.There Are 3 Or 4 Power Carrying Conductors Suitably Insulated And Laid Around A Bare Or Insulated Neutral/Earth Conductor. This Earth/neutral Conductor Carries The Entire Weight Of The Cable When Hanged On Transmission Poles/towers Suitably.The Chances Of Faults Are Reduced To A Great Extent Because The Conductors Are Insulated. However, It Lacks The Safety And Mechanical Strength Of Underground Cables. The Fact That ABC Runs Overhead And Hence It Is Never Subjected To The Mechanical Abuses That An Underground Cable Undergoes.ABC Ensures Good Protection Against Ground And Line Faults Ensuring System Reliability, Increased System Efficiency Compared To Bare Overhead Lines. The Problem Of Free Clearance Is Also Minimized. ABC System Hinders Tampering With Power-line Like Hooking Resulting In Efficient Power Utilization.Advantages :   Easier Installation Particularly In Congested, Forest Or Hilly Areas. Saving In Cost Of Poles, Insulators, Cross-arms Etc. Human Safety In Case Of Accidental Contacts. Water Proof System, No Corrosion. System Reliability Hence Customer Satisfaction. Reduced Clearance.   Insulated Neutral :In Low Voltage Networks, In Case Of Unbalanced Load On The 3 Phases, A Current Can Flow In The Neutral. This Flow Of Current Causes A Voltage To Be Present In The Neutral. This Voltage Can Reach Dangerous Levels Even In 'Earthed' Conditions.It Is Observed That The Permissible Voltage Shift Between Neutral And Earth Can Go Up 100 Volts! This Surely Establishes The Need For An Insulated Neutral. Moreover, Parallels Can Be Drawn With The Underground Cables. A Single Insulation Damage On The Conductor Will Not Necessarily Trip The System, Unless An Adjacent Conductor Also Suffers An Insulation Damage At The Same Point. Unlike In Underground Cables System There Are Lot Of Relative Movements Between The Conductors Leading To Abrasion Which More Likely To Damage The Adjoining Insulation If The Netural Is Not Insulated

ABC Is Also Considered As A Better Choice For Power Distribution In Densely Populated Areas Where Laying Of Underground Cable Is Either Difficult Or Extremely Expensive. This Is Attributed By Narrow Lanes And By-lanes Of Congested Urban Areas. Needless To Mention That ABC Is A Better Choice Due To The Flexibility Of Re-routing Demand, Should There Be Any Changes In Urban Development Plan.