TERMOPAR CABLES

Standards / Colours / Standard and Special Types / Definitions / Constructive Characteristics

THERMOCOUPLE CABLES

1-) Formation: from 1 to 36 pairs, gauges from 32 AWG to 16 AWG stranded according to class 5, solid wire, stranded cable.

2-) Without shielding: Individual conductor insulation PVC, PTFE, INNOVDF or Silicone. General insulation of conductors PVC, Silicone, fibre or INNOVDF.

3-) With collective shielding: Individual conductor insulation of PVC, PTFE, INNOVDF or Silicone,electrostatic shielding with aluminized polyester tape helically applied with 100% overlapping in the set of pairs with 20AWG tinned copper drain ,total conductor insulation of PVC, PTFE, INNOVDF, Silicone or Fiberglass.

4-) With individual shielding: Individual conductor insulation PVC, PTFE, INNOVDF or Silicone,electrostatic shielding with aluminised polyester tape applied. helically with 100% overlap, together with drain on 20 AWG gauge tinned copper pair,general conductor insulation PVC, Silicone, Fibreglass, PTFE or INNOVDF.

5-) With shieldagem individual and collective: Individual conductor PVC, PTFE, INNOVDF or Silicone insulation,electrostatic shielding with aluminized polyester tape helically applied with 100% overlapping covering in the pair, together with the drain cable in tinned copper pair gauge 20 AWG and collective shielding over all pairs in aluminized polyester tape helically applied with 100% overlapping,general conductor PVC, PTFE, INNOVDF, Silicone or Fiberglass insulation.

Extension Cables / Compensation for Thermocouples

-Standard types: single / multi-pair - 01 to 36 pairs.

-Diameters: 1,5mm2 - 16 AWG - 1mm2 - 18 AWG - 0,75mm2 - 20 AWG - 0,5mm2

1- Rigid conductor (single-wire)

2- Flexible conductor (multi-wire)

3- Insulation: colours according to standards.

4- Pair meeting in parallel.

5- Twisted pair with pitch 50 ± 10mm.

6- Pairs numbered correlatively from no. 1 to the total number of pairs.

7- Individual electrostatic shielding (per pair): Aluminium/mylar tape, helically applied with overlapping (100% coating)

7a- Individual shield drain: Continuity/earth conductor, copper

tinned, flexible, in permanent contact with the aluminised part of the tape.

8- Antihygroscopic shielding: Wrapping of mylar tape, helically applied with overlapping (100% coating)

9- Collective electrostatic shielding (total to the set): Aluminium/mylar tape, helically applied with overlapping (100% coating).

9- Collective shield drain: Continuity/ground copper conductor

tinned, flexible, in permanent contact with the aluminised part of the tape.

10- Communication conductor, in copper, flexible, insulated with requested material, to facilitate installation.

11- Inside cover: insulated with requested material

12- Reinforcement: galvanized steel mesh, or two flat galvanized steel strips, applied in open helicoid, with the 2nd strip covering, with

overlap, the interval between successive laps of the first lap.

13- External cover: insulated with material requested. Colours according to standards.

Note: TERMOINNOV standard types are manufactured in compliance with ISA/ANSI identification/calibration. However, if desired, they can be

supplied under other standards, as well as other constructions can be supplied.

Identification

ISA/ANSI standard

1-) MONOPARES - STANDARDISED CONSTRUCTIONS:

SB / UNSHIELDED

B / Parallel Rigid

A / Parallel Flexibles

1A - R / Rigid Twisted

1A - F / Flexible Twisted

BT / COLLECTIVE SHIELDING

1B - R / Rigid Twisted

1B - F / Twisted Flexible

2-) MULTI-PAIRS - STANDARDISED CONSTRUCTIONS:

A - SB / Unshielded

AP - BI / Individual Shielding

B - BG / General Armour

BP - BIG / Individual and General Armour

F - BG / FA /General Enclosure with frame (steel tape)

FP - BIG / FA / Individual and general enclosure with frame

Applicable Specifications

Technical Definitions:

a) Wires are those conductors consisting of a solid shaft, and Cables those formed by a bundle of conductors of smaller diameter, forming a flexible conductor.

b) Extension Wires and Cables, are conductors manufactured with the same alloys as the thermocouples for which they are intended; therefore, they present the same F.E.M. x temperature curve (up to a temperature limit).

The wires and extension cables are used with the metalic base thermocouples or basic types T, J, E, K and N. Although they have the same alloy as the thermocouples, they have a lower cost due to the limitation of temperature that can be submitted, because its chemical composition is not as homogeneous as the thermocouple.

c) Compensation Wires and Cables, are the conductors manufactured with different alloys of the thermocouples to which they are intended, but also presenting the same F.E.M. x temperature curve of the thermocouples (up to a temperature limit).

The compensating wires and cables are mainly used with the noble thermocouples (made of platinum) types S and R, but it can be used in some basic thermocouples and with the new types that are not yet standardised.

The table below indicates the colour code, working range and tolerances of extension and compensating wires and cables for American, German (the most widely used), British, Japanese, French and Brazilian standards.

Although this table is well known and used worldwide, we present the colour chart the new table of temperature ranges, errors and colour code according to IEC-584-3 of 1989.

According to this international standard IEC-584-3, the new tolerances, working ranges and colour code for extension and compensating wires and cables have been adopted in several countries around the world, and even by ABNT, becoming a NBR.

This standard adopted that the suffix "X" for cable types, refers to extension wires and cables and the suffix "C" to compensating wires and cables. The letters "A" or "B" refer to different types of alloys.

Applications

- The colour codes marked with the symbol refer only to type SX.

- Due to the non-linearity of the FEM x Temperature curves of the S, R, B type thermocouples, the error introduced into the system by the compensating wire or cable will be variable when expressed in degrees. Therefore the error limits are based on the following measurement junction temperatures:

SX / RX = Greater than 870ºC

BX = Greater than 1000ºC

- WX and VX wires or cables for type K thermocouples were excluded from ANSI MC 96.1 of 1982.

- Reference junction at 0ºC.

Termoinnov wires and cables are used as extension wires and cables for thermocouples types T, J, K, E, and compensation for thermocouples types S, B, making the interconnection between the sensor and the instrument. Colours, temperature limits, accuracy, are found in the presentation table.

Maximum Conductor Temperature

a) The temperature range in some cases must be less than those shown in the table due to the limitation of the wire or cable insulation.
b) The cables used for type B thermocouples are common copper conductors.

In a range from 0 to 100°C the maximum deviation is ±40ouV ( ±3.5°C ) with a measurement junction temperature of 1400°C.

The insulation used in extension and compensation wires and cables must be chosen so as to resist the conditions of the environment where it will work, taking into consideration all variables such as temperature, mechanical stress, humidity, abrasion, presence of oil and other components.

Due to the wide variety of applications, extension and compensating wires and cables can be supplied with various types of external and internal insulation.

PVC -20 TO 80ºC

ASBESTOS 25 TO 500ºC

FIBRE 20 TO 270ºC

SILICONE -60 TO 250ºC

PTFE -100 TO 260ºC

PVDF -55 TO 145ºC

Notes

- We can produce on request, several other cable options and configurations. Innovcable reserves the right to change this catalogue without prior notice.