Halogen Free Cables & Wire

Halogen Free Cables & Wire

Extensive use of wires and cables in all fields and special environmental conditions has led to the emergence of new requirements for granules used in the wire and cable industry. One of the most important features of raw materials is that they must be Halogen Free.

Halogens are non-metallic elements that produce toxic gases when exposed to fire.

Halogens are 17th group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

The most important tests of Halogen Free cables are smoke density, flame emission, pH and conductivity, oxygen index, heat index, and fluorine test.

The production structure of Halogen Free wires and cables is similar to the production structure of low voltage wires and cables, but with the main difference that it does not use raw materials with halogenated properties.

It is also possible for customers to use mica tape to increase the temperature tolerance of wires and cables up to 750 ° C.

Production standard for cables in Iran is national standard 3569-1 (equivalent to IEC 60502-1 international standard) and for wires is BS EN 50525-3-31.

The following tables show the symbols and letter abbreviations of this type of wire:

 

Abbreviations Symbol for low voltage wires

H

Designed based on harmonized standards

05

300/500 V

07

450/750 V

Z1

Halogen free Insulation

-K

Flexible conductor (Class 5)

-U

Solid conductor (Class 1)

-R

Stranded conductor (Class 2)

 

 

 

 

 

 

Abbreviations Symbol for low voltage cables

N

Designed according to DIN VDE standard

A

Aluminum Conductor

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Copper Conductor

2X

XLPE Insulation

C

Concentric Conductor

H

Halogen free granule

R

Wire Armour

B

Tape Armour

 

 

 

 

 

Abbreviations Letter for low voltage cables

CU

Copper Conductor

AL

Aluminum Conductor

XLPE

Crosslink Polyethylene

CWS

Copper Wire Screen

CTS

Copper Tape Screen

Lsfoh

Halogen free granule

STA

Steel tape armour

SWA

Steel wire armour

ATA

Aluminum tape armour

AWA

Aluminum wire armour

PET

Polyester tape

 

 

 

 

 

 

 

 

 

 

The technical specifications of Halogen Free wires and cables are as follows: