URD
URD este o simbolizare de cablu conform NEC / UL (USA): URD = Underground residential distribution (reading by usage); URD = Underground residential distribution cable, twisted aluminium conductors, direct burial. 600 V, 90 C XLPE. UL 854; ICEA / NEMA WC 70.
2 sisteme de codificare recunosc această simbolizare
NEC / UL (USA)
| Simbol | Semnificație |
|---|---|
URD | Underground residential distribution (reading by usage) |
URD | Underground residential distribution cable, twisted aluminium conductors, direct burial. 600 V, 90 C XLPE. UL 854; ICEA / NEMA WC 70 |
CEI-UNEL 35011 (Italy)
| Simbol | Semnificație |
|---|---|
U | Unifilar (masiv), secțiune circulară, clasa 1 |
R | Policlorură de vinil (PVC) |
D | Tip plat |