Having established a firm reputation in India's PVC & PE Cable industry, it was only natural for Rallison to look at future value-added product extensions. These cables consist of carbon and hydrogen compounds, which essentially contain low-density polyethylene molecules in the form of long flexible chains.
On cross-linking, slippage between flexible chains can be prevented. Cross-linked polyethylene (XLPE) is a thermosetting compound. It softens at the crytahne melting point of polyethylene (85°C to 115°C) and assumes an elastic rubber like consistency, a property that it retains during further rise of temperature until it becomes carbonized without melting at 250°C to 300°C. All this strengthens LT-XLPE cables against stress cracking and gives them a greater resistance to fight ageing in hot air.
PVC rapidly replaced rubber for wiring cables shortly after 1945 and for Power cables insulation in late 1950s in Europe. 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. The main advantages of PVC Cables can thus be summarized as under:
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.
Characteristics The specific properties, which are checked for various Flame Retardant Smoke characteristics are evaluated as per norms of prevalent international specifications. Every customer decides its own set of requirements and Rallison are in a position to offer a wide range of cables to suit these requirements and cover the needs of particular application economically. These tests are to be carried out apart from those physical & electrical tests to evaluate the cable parameters specified in the standards to which it is manufactured.
FRLS Tests Following special tests are most commonly carried out at present on Rallison - PVC FRLS cables.
Flame Retardant Low Smoke Single Core Unsheathed Flexible Copper Cables having high current rating for voltages up to 1100 volts AC
Conductor Many thin strands of Electrolytic Copper are fine-drawn simultaneously for uniformity of characteristics such as Resistance, Dimension, Flexibility etc. The drawn strands are collected and closely twisted in high precision machines and further compacted. This not only imparts circularity to the bunched conductor, but also prevents the tendency for the strands to separate and exert internal pressure on the insulation when the cable is bent during installation and usage.
Rallison today is one of the most preferred and trusted name in House wires. It has emerged as first choice and gained reputation & confidence in consultants, architects and builders.
Rallison has built up a reputation for commercial foresight and solid integrity. Tested and supervised by experienced engineers in sophisticated labs, Rallison House wires have earned a name for themselves in both Indian and international markets.
Airfield Lighting Cables are manufactures as per IS:1554 (Part II) and the cable is of 5 KV grade. "Rallison" is producing the complete range of Airfield Lighting Cables i.e. S/C x 6 Sq.mm & S/C x 16 Sq.mm in Copper and 2C x 25 Sq.mm. Airfield Lighting Cables are with round conductor. These are armoured with steel strip and PVC sheathed. The cables are type tested from CRI, DGAQA-Dehradun.
Rallison telephone cables are processed by high-speed state-of-the-art machinery. The conductor is made of pure electrolytic grade, super annealed, tinned copper and is insulated with good quality PVC. The cores are carefully twisted together with suitable lays and bunched together such that the cross talk is reduced. Also the cores may be helically wrapped with Myler or Polyester tape. A nylon ripcord is also provided in order to safely peel off the jacket without damage to the cores. The laid up and bunched cores are finally jacketed with PVC for indoor application.
The cables generally confirm to ITD specifications for outdoor application, the above mentioned cables can be provided with G.I wire/ strip armoured and over all PVC jacket confirming to IS:1554 Part 1 - 1988 to make them suitable for underground Trench/duct laying.
Mining cables are used in the mines. These are manufactured in 1.1 KV and 3.3 KV. 3.3 KV cables are normally with Copper conductor and are double wire armoured to keep higher mechanical protection. The conductivity of the armour is not less than 75% of the phase conductor.
Rallison PVC single and multi-core flexible cables make a big difference wherever they are installed. They don't merely deliver power, they do so with maximum efficiency and security. With stronger materials, surer conductors and safer insulation, Rallison cables have minimized loss while improving electricity transfer and transient.
Making it possible, is the company's management of manpower, machines and materials. Since its inception in 1985, modern methods of manufacturing and marketing have welded technology and teamwork with quality control and professionalism to produce a better cable.
Right from raw materials, built-in quality control systems check every stage of production. Indian and international standards are met even before the cables emerge from advanced facilities. The finished products are then measured by the most critical tests of all: the highly competitive market place. Success in that supercharged environment is the ultimate proof of the quality of Rallison cables.
Flat Cables for Submersible Pump Motor Rallison Flat Cables are manufactured for critical space requirements, protection against indefinite immersion in water under specified conditions, protection against raining water and protection against ingress of small solid foreign bodies.
Rallison's Flat Cables are produced from best quality electrolytic copper drawn, on-line annealed & bunched on automatic manufacturing machines. The conductors are insulated with a special grade of PVC and outer sheath consists of a highly abrasion resistant PVC compound. These cables processed on sophisticated twin extrusion line meets and withstands the demanding needs of submersible pump motor power supply.
Instrumentation/Screened/Shielded Cables Instrumentation cables are used in process control systems, AC/DC converters, Space Research and other Modern Processor based instrumentation Circuits. These Cables are designed to combat noise and induction phenomena encountered in the circuits and bring a clean and accurate signal to the control room.
The Instrumentation Cables are normally made with EC grade bare / tinned copper stranded conductor, PVC Insulated/pair screened with polyester and Mylar tape along with stranded tinned drain wire. Multi Pair Screened cables are available with individual pair screening as well as overall screening OR with overall screening only as per the requirement of the Customer. These are generally armoured with wire/strip. The sheathing is available with FR/FRLS and FS properties as per the requirement of the customer.
Processing...
