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Designation of cables according to harmonised standards

2020-10-12

Designation of cables according to harmonised standards

The standardisation of the method for designation of cables and wires by means of harmonised standards has been introduced in order to facilitate the identification of products available on the market. These are often products from many different domestic or foreign manufacturers. Getting acquainted with and following the harmonised marking system ensures a precise selection of the cable that is suitable for the user’s needs and requirements in terms of material from which it is made.

Manufacturers of cables and wires usually mark their products mainly on the basis of national standards and transparent product marking systems contained therein. Such a solution worked well on the domestic market but posed significant obstacles to free foreign trade. In this article, we will present examples of cables classified according to Polish standards and using the system of harmonised standards. First of all, however, we would like to use several examples to present the cable designation system itself and explain the combination of numbers and letters applied under the system.

The harmonised cable and wire designation system was introduced by the European Committee for Electrotechnical Standardization (CENELEC), which supports the European Economic Area and of which the Polish Committee for Standardization (PKN) is also a member. The designation system is provided in the PN-HD 361 S3 "System for cable designation" document, which clearly defines the order of designation for cables and wires with a rated voltage up to 450/750V. The cable designation system is divided into several parts, taking into account the basic properties of the cable provided according to the following order:

1. Relation to the harmonised standard:

  • H - cable made in accordance with the harmonised standard
  • A - non-harmonised cable (national standard)

2. Nominal voltage:

  • 01 - 100/100V
  • 03 - 300/300V
  • 05 - 300/500V
  • 07 - 450/750V

3. Insulation & sheath materials:

  • B - ethylene-propylene rubber
  • G - ethylene-vinyl acetate copolymer
  • J - glass fibre braiding
  • N - flame retardant polychloroprene rubber
  • N2 - special polychloroprene mixture for welding cables
  • N4 - chlorosulphonated polyethylene or chlorinated polyethylene
  • R - standard ethylene polypropylene rubber
  • S - silicone rubber
  • T - textile braiding
  • V - polyvinyl chloride (PVC)
  • V2 - polyvinyl chloride resistant to increased temperature (PVC)
  • V3 - polyvinyl chloride for low temperatures
  • V4 - cross-linked polyvinyl chloride
  • V5 - oil resistant polyvinyl chloride
  • Z - low-gas emission cross-linked polyolefin compound
  • Z1 - thermoplastic low-gas emission polyolefin compound

4. Metal coating:

  • C - Concentric copper conductor
  • C4 - copper braid screen

5. Non-metal coating:

  • B - ethylene-propylene rubber
  • G - ethylene-vinyl acetate copolymer
  • J - glass fibre braiding
  • N - flame retardant polychloroprene rubber
  • N2 - special polychloroprene mixture for welding cables
  • N4 - chlorosulphonated polyethylene or chlorinated polyethylene
  • Q - polyurethane
  • Q4 - polyamide
  • R - standard ethylene polypropylene rubber
  • S - silicone rubber
  • T - textile braiding
  • V - polyvinyl chloride (PVC)
  • V2 - polyvinyl chloride resistant to increased temperature (PVC)
  • V3 - polyvinyl chloride for low temperatures
  • V4 - cross-linked polyvinyl chloride
  • V5 - oil resistant polyvinyl chloridepolyolefin compound
  • Z - low-gas emission cross-linked
  • Z1 - thermoplastic low-gas emission polyolefin compound

6. Cable structure:

  • no designation for round cables
  • H - flat cables, non-separable
  • H2 - flat cables, non-separable
  • H6 - flat cables with 3 or more conductors

7. Conductor material:

  • A - Aluminium
  • a dash "-" without an additional letter designation means that the conductor is made of copper. Moreover, it is worth noting that the dash itself is also an element of transition between the description of insulation and structure of the cable and the internal description of the conductor.

8. Conductor structure:

  • D - fine wire for welding cables
  • E - extra fine wire for welding cables
  • F - fine wire for cables (class 5)
  • H - extra fine wire for cables (class 6)
  • K - fine wire for fixed installation (class 5)
  • R - rigid conductor of multi stranded wires
  • U - round conductor of single wire

9. Numerical designation of the number of conductors

10. Protective conductor

  • G - green/yellow protective conductor
  • X - lack of green/yellow protective conductor
  • U - round conductor of single wire

11. Numerical designation of the conductor cross-section

With the theoretical part behind us, we can conclude that the cable designation system according to the harmonised standard itself is not that complicated. It is worth paying attention to the method of marking the materials used to produce the inner insulation or outer sheath of the cable. Let us try to identify the structure and basic properties of sample products available at TME.

H07V2-K single core cable

  • Relation to the harmonised standard: H - cable made in accordance with the harmonised standard
  • Nominal voltage: 07- 450/750V
  • Insulation & sheath materials: V2- polyvinyl chloride resistant to increased temperature (PVC)
  • Cable structure: no designation: round cable
  • Conductor material: a dash, which means copper
  • Conductor structure: K - fine wire for fixed installation (class 5)
  • Number of conductors: 1
  • Protective conductor: X - lack of green/yellow protective conductor
  • Conductor cross-section: 10mm2

H03VVH2-F multicore power cable

  • Relation to the harmonised standard: H - cable made in accordance with the harmonised standard
  • Nominal voltage: 03 - 300/300V
  • Insulation & sheath materials: V- polyvinyl chloride(PVC)
  • Non-metal coating: V - polyvinyl chloride(PVC)
  • Cable structure: H2 - flat cable, non-separable
  • Conductor material: a dash, which means copper
  • Conductor structure: F - fine wire for cables (class 5)
  • Number of conductors: 12
  • Protective conductor: G - green/yellow protective conductor
  • Conductor cross-section: 1.5mm2

H07RN-F multicore power cable

  • Relation to the harmonised standard: H - cable made in accordance with the harmonised standard
  • Nominal voltage 07- 450/750V
  • Insulation & sheath materials: R - standard ethylene polypropylene rubber
  • Non-metal coating: N - flame retardant polychloroprene rubber
  • Cable structure: no designation: round cable
  • Conductor material: a dash, which means copper
  • Conductor structure: F - fine wire for cables (class 5)
  • Number of conductors: 12
  • Protective conductor: G - green/yellow protective conductor
  • Conductor cross-section: 1.5mm2

H05RR-F multicore power cable

  • Relation to the harmonised standard: H - cable made in accordance with the harmonised standard
  • Nominal voltage 05 - 300/500V
  • Insulation & sheath materials: R - standard ethylene polypropylene rubber
  • Non-metal coating: R - standard ethylene polypropylene rubber
  • Cable structure: no designation: round cable
  • Conductor material: a dash, which means copper
  • Conductor structure: F - fine wire for cables (class 5)
  • Number of conductors: 2
  • Protective conductor: X - lack of green/yellow protective conductor
  • Conductor cross-section: 0.75mm2

H05VVH6-F multicore power cable

  • Relation to the harmonised standard: H - cable made in accordance with the harmonised standard
  • Nominal voltage 05 - 300/500V
  • Insulation & sheath materials: V - polyvinyl chloride(PVC)
  • Non-metal coating: V - polyvinyl chloride(PVC)
  • Cable structure: H6 - flat cables with 3 or more conductors
  • Conductor material: a dash, which means copper
  • Conductor structure: F - fine wire for cables (class 5)
  • Number of conductors: 12
  • Protective conductor: G - green/yellow protective conductor
  • Conductor cross-section: 0.75mm2

The table below contains the most popular cables with designations according to the previously used Polish standard and the currently required harmonised standard

Designation according to the Polish standard: Designation according to the harmonised standard:
OMY 300/300V H03VV-F
OMYp 300/300V H03VVH2-F
LgY 300/500V H05V-K
LgY 450/750V H07V-K
OWY 300/500V H05VV-F
OWYp 300/500V H05VVH2-F

The catalogue of cables available at TME includes both commonly used Polish standard designations as well as European designations according to the PN-HD 361 S3 harmonised standard. Products available in our catalogue can be browsed using both types of designations.

Discover cables available in our catalogue

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