SPT
SPT is a NEC / UL (USA) cable designation: S = Service cord; P = Parallel (zip) construction; T = Thermoplastic (PVC); SPT = SPT: parallel thermoplastic (zip) cord, two or three conductors moulded side by side in PVC, no jacket; the insulation class (SPT-1, SPT-2 or SPT-3) not given. 300 V; 60 C or 105 C by listing (Southwire, Cerrowire, AWC). UL 62; NEC Table 400.4.
11 coding systems recognise this code
NEC / UL (USA)
| Symbol | Meaning |
|---|---|
S | Service cord |
P | Parallel (zip) construction |
T | Thermoplastic (PVC) |
SPT | SPT: parallel thermoplastic (zip) cord, two or three conductors moulded side by side in PVC, no jacket; the insulation class (SPT-1, SPT-2 or SPT-3) not given. 300 V; 60 C or 105 C by listing (Southwire, Cerrowire, AWC). UL 62; NEC Table 400.4 |
VDE telecom, signal and fibre cables (DIN VDE 0815, 0816, 0813, 0888)
| Symbol | Meaning |
|---|---|
S | Switchboard Cable |
P | Paper Insulation |
T | Supporting (Strain-Bearing) Element, e.g. For Aerial Cable |
How to read a VDE telecom, signal and fibre cables (DIN VDE 0815, 0816, 0813, 0888) cable code
UTE (France, NF C 30-202 traditional system)
| Symbol | Meaning |
|---|---|
S | Flexible Cable |
P | Lead Sheath |
T | Textile Braiding Over Twisted Cores |
How to read a UTE (France, NF C 30-202 traditional system) cable code
China (GB / JB/T / MT cable model codes)
| Symbol | Meaning |
|---|---|
SPT | Railway Digital Signalling Cable |
How to read a China (GB / JB/T / MT cable model codes) cable code
NEC Article 400 (US flexible cords, NFPA 70 / UL 62)
| Symbol | Meaning |
|---|---|
S | Service Cord (Alone: Hard Service Cord, 600 V, Extra Hard Usage) |
P | Parallel Conductor Cord |
T | Thermoplastic Insulation And Jacket |
How to read a NEC Article 400 (US flexible cords, NFPA 70 / UL 62) cable code
NEC Article 402 (US fixture wires, NFPA 70)
| Symbol | Meaning |
|---|---|
S | Silicone Rubber |
PT | Extruded Polytetrafluoroethylene (PTFE) Insulation |
How to read a NEC Article 402 (US fixture wires, NFPA 70) cable code
CEI-UNEL 35011 (Italy)
| Symbol | Meaning |
|---|---|
S | Sector Shaped Stranded Conductor |
P | Polyurethane (PUR) |
T | One Or More Mica Glass Tapes, Or A Closed Glass Braid |
NBN (Belgian national cable names, ...B types)
| Symbol | Meaning |
|---|---|
S | Signal Cable |
P | Non-Impregnated Paper Insulation (Implies A Lead Sheath) |
T | Telephone Cable |
How to read a NBN (Belgian national cable names, ...B types) cable code
IEEE 1580
| Symbol | Meaning |
|---|---|
S | Single Conductor Distribution |
P | Cross Linked Polyolefin (XLPO) |
T | Polyvinyl Chloride (PVC) |
NEN 3207 / KEMA (Netherlands)
| Symbol | Meaning |
|---|---|
S | Silicone Rubber |
P | Paper Insulation |
T | Fibrous (Textile) Covering |
SS 424 17 01 (Sweden)
| Symbol | Meaning |
|---|---|
S | Copper Conductor, Fine-Stranded (Class 6) |
P | Galvanized Steel Tape Armour |
T | Heavy Connection Cable Or Steel-Wire Armour |
Fire behaviour (EU CPR)
PVC sheath (SPT).
Typically targeted, as declared by makers for this kind of construction in the examples this site checked (not the class of this cable):
EcaN1XV-R, Ahlsell (seller)Cca-s3,d1,a3FG16OR16, Nexans (La Triveneta Cavi)EcaU1000 R2V, Nexans (La Triveneta Cavi)EcaN2XSY, Waskönig+Walter (10 kV datasheet)
Listed as sources, alphabetically by maker. No maker pays to appear here.
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.
SPT as the cable designer builds it, 2/C 18 AWG, 300 V
Flat, 6.9 × 3.5 mm (width × thickness), about 40 kg/km. Nominal values from the standard's tables for this size, computed, not a maker's data.
| Layer | Material | Thickness, mm | Over the layer, mm |
|---|---|---|---|
| Insulation | PVC | 1.1 | 3.5 |
SPT on a drum
The smallest drum that passes every check, for 6.9 mm and about 40 kg/km as the cable designer builds it. Drums as their makers print them; lengths are estimates within a few per cent of the cable makers' own tables: whole layers, wound diameter 1.05 × OD, 50 mm freeboard under the flange rim.
| Length | Drum size (its makers) | Layers | Gross weight |
|---|---|---|---|
| 500 m | NEMA 24x12x10, wood NEMA reels (North America), American Wire Group, Okonite | 12 of 17 | 30–33 kg |
| 1,000 m | NEMA 24x18x10, wood NEMA reels (North America), American Wire Group, Okonite | 15 of 17 | 51–54 kg |
Barrel at least 12 × OD = 83 mm for a cable of this kind (Flexible cable (class 5 or 6 conductor)): KTG table, the cable's datasheet wins. A load rating is the drum maker's own.
Other lengths, drums and weights: the cable drum calculator
Load it on a truck: 1000 m on its drum in the loading planner
Laying, sizes and datasheet: SPT
SPT belongs to the family North American cables: the lowest laying temperature, bending radius, pulling, depth, drum handling and the test after laying, every rule with its sources. Laying and handling guide: North American cables
Its sizes are in AWG and kcmil, which are not the same as the nearest mm²: compare them by area and by resistance. AWG to mm²
Selling this cable? Open it in the designer and get a datasheet with your logo (Pro). Open the cable designer · See Pro