Construction Products Regulation (CPR) – coaxial and twisted-pair cables recommended for low-current systems in multi-family buildings.

The Construction Products Regulation (CPR) is the REGULATION (EU) No. 305/2011 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2011 related to the construction products and repealing Council Directive 89/106/EEC (Construction Product Directive). The regulation classifies construction products and lays down the rules regarding testing of said products. The Regulation entered into force on July 1, 2013.
In the case of isolated conductors and cables used as construction products, the CPR is based on the harmonized European standard EN 50575:2014, whose implementation date was set at July 1, 2016. Since that date, manufacturers/importers have had 12 months to fully comply with the new regulations and adapt to the new requirements. This means that from July 1st 2017 all installation cables should be treated as construction products and subject to appropriate regulations. The new regulations require manufacturers to issue Declaration of Performance (DoP), as well as label their products meeting the relevant standards with the CE mark. The manufacturer, by drawing up their DoP, assumes the responsibility for the conformity of the construction product with the declared performance(s). EN 50575 standard specifies the requirements for the fire performance of cables which are used in permanent systems in buildings, i.e. power cables, control and communication cables, fiber optic cables:
  • power cables – isolated conductors and electric cables used e.g. for the supply of electricity;
  • control and communication cables – isolated conductors, symmetrical and coaxial cables with metallic conductors used e.g. in telecommunications systems, for data transmission, for distribution of TV and radio signals in RF networks, in signaling and control systems;
  • fiber-optic cables – used e.g. in telecommunications systems, for data transmission, for distribution of TV and radio signals in RF networks, in signaling and control systems.
So far, the conductors and cables have been considered exclusively as electrical products subject to product safety regulations under the Low Voltage Directive (LVD) and were subject to CE marking by the manufacturer. The new rules established by EN50575 impose on the manufacturers (also importers and distributors) the obligation to commission relevant tests to notified certification bodies/laboratories in order to obtain certificates confirming the fire resistance classes of their products and to issue Declarations of Performance (DoP) with the relevant Euroclasses. The Euroclass of a construction product (including power, control and communication cables) allows for its classification in terms of reaction to fire according to the same rules and criteria across Europe. The markings of the fire classification can already be found on the labels of many construction products and will soon be required for all such products.
Cable classification scheme according to EN50575 standard
Euroclass
Test methods
Additional classification
Examples of products
 Aca EN ISO 1716  halogen-free cables
 B1ca  EN 50399
EN 60332-1-2
smoke production (s1, s2),
flaming droplets/particles (d1,d2)  
and acidity (a1)
halogen-free cables
B2ca  EN 50399
EN 60332-1-2
hard PVC and halogen-free cables
 Cca  EN 50399
EN 60332-1-2
halogen-free cables
Dca EN 50399
EN 60332-1-2 
high-quality PVC cables
Eca EN 60332-1-2   no requirements
PVC cables
 Fca

Not fulfilling requirements
for
Eca

 no requirements  PE and PVC cables
Most of the materials used for the cable sheath are combustible polymers (flammable or flame retardant). Polyvinyl chloride is the most popular electrical insulating material. Without special additives, it is flammable and causes flame propagation. In case of fire, thermal degradation processes occur, which may be accompanied by flame spread and emission of decomposition products, including smoke.
About 60% of the mass of polyvinyl chloride is chlorine, a highly poisonous gas used as a warfare weapon in World War I. Chlorine is a chemical element in group 17 of the periodic table (a halogen), which also includes astatine, bromine, fluorine, and iodine. Overheated PVC (polyvinyl chloride) decomposes releasing chlorine (Cl) and hydrogen chloride (HCl) which forms hydrochloric acid when combined with water. During normal use of the system, as the materials mentioned age without exceeding their maximum allowable operating temperature, these processes occur very slowly. When the decomposition temperature of 200-300°C is exceeded (under fire conditions), pyrolysis of polyvinyl chloride (thermal decomposition of a chemical compound by breaking up molecules of higher molecular weight into smaller ones) intensifies. During a fire, the softener combustion produces black, corrosive and opaque smoke and toxic gases. The mass of hydrochloric acid generation reaches 20% of the mass of burned PVC. The mass of 1 kg of PVC burned fills with smoke a room with a volume of 500 m3.
The following diagrams show the emission of toxic and corrosive gases such as HCl and CO
for cables manufactured with PVC and LSZH (LS0H) sheath during the combustion process.
Comparison of HCl emissions by material.

source: Universitat Politècnica de Catalunya,
BarcelonaTech Department of Engineering and Nautical Science.
Comparison of CO emissions by material.

source: FACEL
Cables as well as other products used in construction industry are subject to evaluation in terms of their reaction to fire. It is estimated that from 60% to 80% of all fire deaths are caused by poisoning, suffocation or inability to quickly evacuate the place of danger. It is required that the materials used for the furnishings of the building, including wires, cables and other elements associated with the electrical and telecommunications systems, work properly under normal conditions of the building use as well as under emergency conditions i.e. fire (no opaque, corrosive and toxic smoke emission).
Comparison of the emission of dense smoke in cables with LSZH (LS0H) and PVC sheaths. The graph shows the light transmission (%) in time (min) of dense smoke emission.
source: Universitat Politècnica de Catalunya,
BarcelonaTech Department of Engineering and Nautical Science.
According to CPR and the EN50575 standard there are seven Euroclasses classifying the reaction of cables to fire: Aca, B1ca, B2ca, Cca, Dca, Eca, Fca along with additional criteria characterizing smoke production, occurrence of flaming droplets/particles and acidity of combustion and thermal decomposition products. Aca class defines nonflammable cables (no reaction), whereas Fca class contains cables not fulfilling Eca class requirements (i.e. with undetermined performance). Additional classification includes:
  • s1, s2 - smoke production,
  • d1, d2 - occurrence of flaming droplets/particles,
  • a1 - acidity.
Coaxial Cable (75 ohm, class A++): TRISET B2CA 120 dB 1.05/4.6/6.9 [500m]
Coaxial cable for emergency exits.
The CPR regulation does not directly apply to the design and construction of buildings, but it does require fire safety of buildings to be ensured, that is, it indirectly requires the use of cables with a certain reaction to fire class. The CPR regulation does not impose on the EU Member States the requirements for types of buildings and associated cables with specific fire reaction classes. The requirements for using cables with a specific reaction to fire class in a given type of building should be based on a risk analysis made by the installation designer or other national formal and legal documents. Each member state introduces appropriate requirements for buildings on their own.
With the introduction of the common European reaction to fire classes, designers and architects have at hand clear regulations regarding the use of the appropriate types of cables. Where greater safety in case of fire is required (high-rise residential buildings), it is recommended to use cables with LSZH (LS0H) sheath, i.e. the halogen-free insulation.
Coaxial cable (75 ohm, class A+): TRISET PLUS Dca LSZH<br />1,13/4,8/6,8 110 dB [100m]
TRISET PLUS E1016_500 – reaction to fire class acc. to CPR – Dca-s2,d1,a1
With the introduction of the European classes of reaction to fire, designers and architects have clear regulations regarding the use of the appropriate type of cables. In order to achieve a higher level of fire safety, cable manufacturers recommend the use of B2CA cables in special-purpose buildings which have to meet very high safety requirements (e.g. in hospitals, nurseries, high-rise buildings, office buildings, and nursing homes).
Coaxial Cable (75 ohm, class A++): TRISET B2CA 120 dB 1.05/4.6/6.9 [500m]
TRISET B2CA E1020_500 – reaction to fire class acc. to CPR – B2ca-s1a,d1,a1.
Coaxial Cable 75 Ohm, TriSAT B2CA LSZH-FR+ class A+ 1.00/4.6/6.9 110 dB [500m]
Coaxial cables are divided according to wave impedance:
  • 50 Ω - Trilan cables for applications in WLAN installations (2.4 GHz and 5 GHz);
  • 75 Ω - DIPOLNET oraz Triset cables dedicated for individual and shared antenna systems (S/MATV). Typical applications include distribution of DVB-T, FM/DAB and satellite TV signals (DVB-S/S2).
75 ohm Triset cables
50 ohm Trilan cables
Example of marking a cable
Example of tagging the packaging with EC marking for a class Eca cable

List of Declarations of Performance of coaxial cables
compliant with CPR
code cable name
DoP
PL
DoP
EN
Wave impedance
reaction to fire
E1015 TRISET-113   75 Ohm Eca
E1016 TRISET PLUS LSZH 75 Ohm Dca
s2, d1, a1
E1017 TRISET-113 PE  75 Ohm Fca
E1020 TRISET B2CA    75 Ohm
B2ca
s1a, d1, a1
E1022 TRISAT B2CA   75 Ohm
B2ca
s1a, d1, a1
E1025 TRISET-11 PE   75 Ohm
 Fca 
E1027  TRISET-11 LSZH      75 Ohm  Cca
s1a, d1, a1 
E1215 Tri-Shield
DIPOLNET 1.13
75 Ohm Eca
E1220  Tri-Shield
DIPOLNET 1.02
 75 Ohm  Eca 
E1230  DIPOLNET      75 Ohm Eca
E1231  DIPOLNET PE   75 Ohm Fca
E1171 Tri-Lan 240 PE   50 Ohm
Fca
E1172 Tri-Lan 240   50 Ohm Eca
E1173 Tri-Lan 400 PE  50 Ohm Fca
M5995 CAMSET/YAR   75 Ohm  Eca 
M5997 CAMSET/YAR PE   75 Ohm Fca

 

Twisted pair cables are used for data transmission in telecommunications and computer networks, mostly in Ethernet networks installed in buildings (structural cabling). They are composed of one or more pairs of twisted isolated wires. Twisting minimizes the effects of external and internal (crosstalk) electromagnetic interference.
Categories/classes of twisted pair cables enable users to select proper cables for applications in different networks, and ensure backward compatibility with existing solutions. The requirements for specific categories or classes of structured cabling (including compatibility issues) are defined by the Telecommunications Industry Association (TIA) and the International Organization for Standardization (ISO). The EIA/TIA standard and the European standard EN50173 define several groups of copper cables with different capabilities of data transmission.
As with coaxial cables, in order to achieve a higher level of fire safety, twisted-pair cable manufacturers recommend the use of cables in B2CA flammability class in special-purpose buildings ( particularly cables installed within escape routes), which must meet very high safety requirements (e.g., hospitals, nurseries, high-rise buildings, office buildings, nursing homes).
Cat. 6 B2ca U/UTP Cable: NETSET U/UTP B2ca-s1a-d1-a1 /500m/
NETSET U/UTP E1615_500 category 6 flammability class B2ca-s1a-d1-a1 cable meets the legally required non-flammability class standards. It has an LSZH jacket (halogen-free insulation).
Cat 6a U/UTP cable: NETSET U/FTP 6A B2ca s1a,d1,a1 /500m/
NETSET U/FTP E1617_500 category 6A flammability class B2ca-s1a-d1-a1 cable meets the legally required non-flammability class standards. It has a LSZH jacket (halogen-free insulation).
Family of NetSet cables for structural cabling.
List of Declarations of Performance of twisted-pair cables
compliant with CPR
code cable name
DoP
PL
DoP
EN
category reaction to fire
E1408 NETSET U/UTP 5e   Eca
E1409 NETSET Lite U/UTP 5e Eca
E1410 NETSET U/UTP PE+ żel  5e   Fca
E1412 NETSET U/UTP PE  5e  Fca
E1414 NETSET BOX U/UTP 5e Dca
s1, d2, a1
E1415 NETSET U/UTP 5e Cca
s1a, d1, a1
E1515 NETSET F/UTP  5e  Eca
E1517 NETSET F/UTP PE  5e  Fca
E1519 NETSET F/UTP 5e + linka 5e Fca
E1608 NETSET U/UTP   Eca
E1611 NETSET BOX U/UTP 6 Fca
E1612 NETSET F/UTP  6 Dca
s2, d2, a1
E1614 NETSET BOX U/UTP 6 Dca
s2, d2, a1
E1615  NETSET U/UTP 6 B2ca
s1a, d1, a1
E1616 NETSET U/FTP 6A Eca
E1617 NETSET U/FTP  6A B2ca
s1a, d1, a1
E1626 NETSET S/FTP 7 Cca
s1a, d1, a1