美规线规的代号和含义

Flat Wire:

（变形线）

SPT: Stranded Wire(绞线), Parallel（平行线）, Thermoplastic（热塑性塑料）

热塑性平行线

This is always followed by a -1, -2 or -3, signifying insulation thickness for different applications. HPN: Heater, Parallel, Neoprene

Required for heater-type application, such as irons, toasters, etc.

NOTE: We can run some 20 AWG, but mostly we run 18, 16 and 14 AWG, 2 or 3 conductors. P is always Parallel Wire (Flat).

Jacketed Wire:

S = Stranded (or Service Wire)

J = Junior Service (300 Volt). If no "J" is in the wire type, then it is a hard service (600 Volt). T = Thermoplastic. If no "T" is in the wire type, then it has a rubber jacket.

O = Oil-Resistant Compound

W = Weather-Resistant Compound

V = Vacuum - as in vacuum cleaner. This is a small O.D. jacketed wire, very flexible and initially used for vacuum cleaners but now used on many different types of products. Available only in 18 AWG.

Examples:

SV = Stranded Vacuum Rubber Jacketed (NO "T") SJT = Stranded Junior Thermoplastic

SJTOW = Stranded Junior Thermoplastic, Oil and Weather resistant for UL and CSA.

Miscellaneous requirements:

S.P. = Surface Printed

N.M. = Non-Migratory compound to prevent the wire color from bleeding under unusual circumstances.

VW-1 = Vertical Flame test (formerly FR-1)

60°C = Standard temperature rating (except HPN - 90°C

105°C = Electri-Cord's alternate rating (we normally don't stock 75°, 90°C)

IEC, ICC = International Color Code on the inner conductors (Blue, Brown, Green w/Yellow Stripe)

N.A. = North American Color Code on the inner conductors (Black, White, Green) 41/34 = Stranding - 41 strands of 34 AWG wire for each inner conductor

T.C. = Tinned Copper inner conductors RIBBED = Outer jacket is striated with ribs

R/S or W/S = Red or White Stripe for visual polarity inspection on Flat wir