Tratos is an International manufacturer and supplier of Instrumentation Cables. The existing national and international instrumentation cables offer only partial solutions, which are often not specialised enough to satisfy the customer's requirements.
At Tratos Cavi, many years of experience means that they are able to offer all the resources and technical information their customers may need, and a team of experts is available to design instrumentation cables for any specification. Their data bank continues to grow day by day, thanks to extensive research and products development.
These illustrations represent only a handful of the cables which TRATOS produces. A huge variety of cables are manufactured, offering characteristics and meeting performance criteria in accordance with the specific technical standards required by the customer and the end user.

Instrumentation Cables Usage

Instrumentation cables are often used within systems where there is a necessity for signals to be transferred between various components, as their design means the transmitted signal is protected from internal and external interferences and disturbances. They are principally used in the control of industrial processes, chemical and petroleum plants and electrical power plants.

All the cables are suitable for installation in areas of intrinsic security (AD-I, and ATEX) and are anti-deflagrating (AD-PE, ATEX) which is a requirement within most of the plants in which they are utilised.
The correct choice of interconnecting cables is vital within control processes. The large quantity of the instruments used, their particular sensitivity and the increasingly restricted tolerances dictate the properties of the cables needed for each application. TRATOS CAVI makes this difficult decision easier by offering a vast range of specialist cables. The Tratos technical team will work with any problem, examining the options thoroughly whilst keeping in mind the economical aspects, in order to deliver the best solution for the customer.

CONSTRUCTION AND PERFORMANCES

In response to some customers’ questions:

Individual screen

When an individual screen is required, on each pair, triple or quad, it is normally formed by an aluminium tape bonded to a polyester tape helically or longitudinally wound over the conductors with an overlap of approximately 25% in order to ensure total coverageeven when the cable bends. The thickness of the tapes is established by the relevant technical standard. A tinned copper drain wire is applied, which is in contact with the metallic part. Other tapes made of polyester or a similar material can be used as screening components. In some circumstances, copper screens may be used (wires or tapes) or semi conductive layers with a PVC or polyester base for particular applications.

Stranding

The number of pairs, triples or quads, screened or unscreened, which compose the cable are assembled together, normally concentrically and in alternative layers. Fillers of non-hygroscopic materials may be used to improve the roundness of the cable. A taping is applied over the last layer.

Overall screen

The general or overall screen is normally formed by an aluminium/polyester tape, wrapped in either a spiral or longitudinal formation with an overlap of about 25% in order to ensure total coverage even when the cable bends. The thickness of the tapes are established by the technical norm of reference. A tinned copper drain wire is applied, which is in contact with the metallic part. Other tapes made of polyester or a
similar material can be used as screening components. In some circumstances, copper screens (wires or tapes) can be used as a substitute for the aluminium screens.

Moisture barrier

In particular cases, instrumentation cables can be supplied jelly-filled – that is to say, with fillers which are applied longitudinally to prevent the penetration of water and other fluids.

Internal sheath

When cables are armoured, an internal sheath is applied over the grouped pairs, triples and quads or over the collective screen. The material of the sheath may be PVC, polyethylene, silicone, LSHF compound or other special material specifically selected to give the cable the exact properties required by the user.

Our Cables are approved by the following bodies:

Our customers include the main OEM's.