CU/SHF1
CU/SHF1 is a ABNT NBR (Brazil) cable designation: ATOX = Halogen-free, low smoke, flame-retardant family name (NBR 13248); Atoxflex and Cortox Flex are HEPR with LSHF / SHF1 sheath; CU = Copper conductors; ATOX = Halogen-free, low smoke flexible cable (NBR 13248): Atoxflex, Cortox Flex, Superatox Flex. 0.6/1 kV (Atoxflex, Cortox) or 450/750 V (Superatox, halogen-free polyolefin 70 C). NBR 13248; NBR NM 280.
2 coding systems recognise this code
ABNT NBR (Brazil)
| Symbol | Meaning |
|---|---|
ATOX | Halogen-free, low smoke, flame-retardant family name (NBR 13248); Atoxflex and Cortox Flex are HEPR with LSHF / SHF1 sheath |
CU | Copper conductors |
ATOX | Halogen-free, low smoke flexible cable (NBR 13248): Atoxflex, Cortox Flex, Superatox Flex. 0.6/1 kV (Atoxflex, Cortox) or 450/750 V (Superatox, halogen-free polyolefin 70 C). NBR 13248; NBR NM 280 |
Layer-list designation (CU/XLPE/SWA/PVC style, IEC and BS practice)
| Symbol | Meaning |
|---|---|
CU | Copper Conductor |
SHF1 | Low Smoke Zero Halogen Compound (Thermoplastic) |
How to read a Layer-list designation (CU/XLPE/SWA/PVC style, IEC and BS practice) cable code
What is ATOX cable?
ATOX: Halogen-free, low smoke flexible cable (NBR 13248): Atoxflex, Cortox Flex, Superatox Flex. Rating: 0.6/1 kV (Atoxflex, Cortox) or 450/750 V (Superatox, halogen-free polyolefin 70 C). Standard: NBR 13248; NBR NM 280.
Superatox Flex has no sheath (single polyolefin layer, 450/750 V); it is drawn here with a sheath as the family default (engine limit: one construction per entry). SHF1 is written ST8 in the ONC text.
Documents and pages the readings were taken from
Fire behaviour (EU CPR)
Halogen-free compound (ATOX). Under the CPR this shows in the additional classes: acidity a1 to a3 (EN 60754-2) and smoke s1 to s3 (EN 50399; s1a and s1b add the 3 m cube test EN 61034-2). The main class, Aca to Fca, depends on the whole construction.
Typically targeted, as declared by makers for this kind of construction in the examples this site checked (not the class of this cable):
B2ca-s1a,d0,a11-CXKH-R-J, Kablo VrchlabíCca-s1b,d1,a1FG16(O)M16, Nexans (La Triveneta Cavi)B2ca-s1a,d1,a1FG18(O)M16, Nexans (La Triveneta Cavi)DcaFXQJ, Nexans NorwayCca-s1b,d1,a1H07Z1-K, Nexans SpainB2ca-s1,d2,a1AXQJ-RMF, Prysmian Sweden (12/20 kV)B2ca-s1a,d1,a1RZ1-K (AS), Top CableCca-s1b,d1,a1RZ1FZ1-K (AS), Top Cable
Listed as sources, alphabetically by maker. No maker pays to appear here.
Flame retardant (ATOX). The single-cable test behind class Eca is EN 60332-1-2 (the flame stops within 425 mm). Bunched cables are tested by IEC 60332-3-24 category C (1.5 l/m, 20 min, char at most 2.5 m), which is not a CPR class test; the CPR ladder test for B1ca to Dca is EN 50399.
A CPR class is declared by the maker in its Declaration of Performance and printed on the sheath (EN 50575 cl 7). This decoder does not assign one. What the CPR classes mean →
Sources: EN 13501-6 draft and FprEN 50575:2014 final draft (drafts, not the published texts); IEC 60332-3-24:2000+A1:2008; EN 13501-3 draft A2.
Work with CU/SHF1
Who makes or stocks this cable?
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