Halogen-free – all components of halogen-free products are made entirely from non-halogenated materials. Upon burning of non-halogenated product, no corrosive fumes occur. Considered as non-halogenated products are those cables that meet all recommendations of standard ČSN EN 50267. Generally, such products also satisfy other standards for reduced fume production upon burning (ČSN EN 50268).
Within premises with explosion hazard – products in virtue of their construction and used materials do not transfer axially any dangerous exhaust fumes.
“ESČ” marking – stands for conformity of such labelled products features with standards of electric safety.
Intrinsically safe – circuits do not form within their proximate vicinity any dangerous values of electrical charge.
Fire-retardant – (imprinted on product) means increased resistance to flame action upon burning of cluster. Products with such marking shall conform to standard ČSN EN 50266 A F/R, A, B, C or D while letter suffixes here distinguish various testing methodology, differing mainly in duration of flame action and in non-metallic elements ratio within the sample. Designation -R conforms to standard of A grade (other designations -F/R, -R, -R/B, -R/C, -R/D).
Flame-resistant – (imprinted on product) represents a product with insulation integrity which has enhanced resistance to flame action during tests according to ČSN IEC 60 331 standard, upon defined gas-flow rate, burner size and under temperature higher than 750°C.
LOCA – maximum project breakdown at NPS, cables are resistant to ionizing radiation.
Standards
ASTM – American standarrd of testing materials (USA)
ANSI – American national standards institute (USA)
BS – British standard (UK)
CEN – European Committee for Standardization or Comité Européen de Normalisation
ČSN – Czech technical standard
ČSN EN – Czech version of the European standard
ČSN IEC – Czech version of the international standard
DEP – Design and Engineering Practise – Construction standards of Shell
DIN – Deutsches Institut für Normung e.V. (Germany) – German standards
EN – European standards
GOST – technical standards maintained by the Euro-Asian Council for Standardization, Metrology and Certification
IEC – International Electrotechnical Commission
International standards
IEEE – The Institute of Electrical and Electronics Engineers
ISO – International Organization for Standardization
MESC – Material and Equipment Standards and Code – Construction standards of Shell
NFC – Normes Françaises Class C (France) – French standards
VDE – Verein Deutscher Elektroingenieure (Germany) – German standards
Cable circuits
CCTV – Closed-circuit television
EPS – Electric fire alarm
GAS – Gas detection circuits
MaR – Measuring and control circuits
Material abbreviations
HDPE – High-density polyethylene
LDPE – Low-density polyethylene
PE – Polyethylene
PVC – Polyvinyl chloride
XPE – Cross-linked polyethylene