PVS, PuGV and PuGVng-LS wires: purpose and limitations
Wires differ from cables in their simpler construction — typically one or several insulated conductors without a common sheath (or with only a light sheath). It is important to understand the limits of their application.
PuGV — flexible installation wire
PuGV is a single-core wire with PVC insulation, flexibility class 5 (stranded conductor). The designation stands for: Pu — installation wire (provod ustanovochny), G — flexible (gibky), V — PVC insulation. Its main use is wiring inside electrical panels, cabinets and on DIN rails. It is convenient thanks to its high flexibility — it is easy to route in the confined space of a panel.
PuGVng(A)-LS is the flame-retardant version of PuGV with reduced smoke emission. It is mandatory for panels in public buildings under the PUE (Electrical Installation Code). If you are assembling a panel for a school, hospital or shopping mall, use only PuGVng(A)-LS.
PVS — connecting wire
PVS is a flexible multi-core wire with PVC insulation. The designation stands for: P — wire (provod), V — PVC insulation, S — connecting (soyedinitelny). It is used to connect household appliances: washing machines, refrigerators, vacuum cleaners and extension cords.
PVS is NOT intended for fixed installation! It is a connecting wire for hooking up electrical appliances. For fixed wiring, use VVGng(A)-LS.
PVSng(A)-LS is the flame-retardant PVS. It is used to connect equipment in public buildings where fire safety requirements apply.
Comparison
| Parameter | PuGV | PVS |
|---|---|---|
| Conductors | One | 2–5 |
| Purpose | Wiring in panels | Connecting appliances |
| Fixed installation | Only in panels | Not allowed |
| Cross-section | 0.5–240 mm² | 0.75–16 mm² |