HF-NFR-3
HF-NFR-3 is a KS / KEPCO type names (Korea) cable designation: HF-NFR-3 = HF-NFR-3: TFR-3 with a low-toxic flame-retardant polyolefin sheath; HF-NFR-3 = HF-NFR-3: TFR-3 with a low-toxic flame-retardant polyolefin sheath. 0.6/1 kV (Taihan p.52). KS C IEC 60502-1, Taihan standard.
1 coding system recognises this code
KS / KEPCO type names (Korea)
| Symbol | Meaning |
|---|---|
HF-NFR-3 | HF-NFR-3: TFR-3 with a low-toxic flame-retardant polyolefin sheath |
HF-NFR-3 | HF-NFR-3: TFR-3 with a low-toxic flame-retardant polyolefin sheath. 0.6/1 kV (Taihan p.52). KS C IEC 60502-1, Taihan standard |
What is HF-NFR-3 cable?
HF-NFR-3: TFR-3 with a low-toxic flame-retardant polyolefin sheath. Rating: 0.6/1 kV (Taihan p.52). Standard: KS C IEC 60502-1, Taihan standard.
Taihan p.52 (manufacturer): Low Toxic Flame Retardant Polyolefine Sheath (HF-NFR-3). Letters aligned with Taihan's full English names (the catalogue does not spell out the key, and no KS text was read): TFR = tray flame retardant PVC sheath, HF = halogen free, O = polyolefin sheath, C = XLPE insulation (CV, CE) or, first in a control cable name, control cable (CVV, CCV, HFCCO), V = PVC, E = PE sheath, S = copper tape shield, SB = copper wire braid shield, CN = concentric neutral, -W = water-blocking, TR = tree-retardant XLPE.
Documents and pages the readings were taken from
- Taihan Electric Wire catalogue 'TAIHAN, a global leader in Wire & Cable' (owner's library: docs/Kablo Kodları/Kore - Wire and cable.pdf), pdf p.49
- Taihan Electric Wire catalogue 'TAIHAN, a global leader in Wire & Cable' (owner's library: docs/Kablo Kodları/Kore - Wire and cable.pdf), pdf p.52
KS / KEPCO type names (Korea): how to read the cable type names
Fire behaviour (EU CPR)
Flame retardant (HF-NFR-3). 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.