KNOWLEDGE
WIRE SIZE
| Wire size | Assigned maximum Ampere rating | |
|---|---|---|
|
AWG or kcmil |
mm2 |
A |
|
30 |
0.05 |
0.5 |
|
28 |
0.08 |
0.8 |
|
26 |
0.13 |
1 |
|
24 |
0.20 |
2 |
|
22 |
0.32 |
3 |
|
20 |
0.52 |
5 |
|
18 |
0.82 |
7 |
|
16 |
1.3 |
10 |
|
14 |
2.1 |
15 |
|
12 |
3.3 |
20 |
|
10 |
5.3 |
30 |
|
8 |
8.4 |
50 |
|
6 |
13.3 |
65 |
|
4 |
21.2 |
85 |
|
3 |
26.6 |
100 |
|
2 |
33.6 |
115 |
|
1 |
42.4 |
130 |
|
1/0 |
53.5 |
150 |
|
2/0 |
67.4 |
175 |
|
3/0 |
85.0 |
200 |
|
4/0 |
107 |
230 |
|
250 |
127 |
255 |
|
300 |
152 |
285 |
|
350 |
177 |
310 |
|
400 |
203 |
335 |
|
500 |
253 |
380 |
|
600 |
304 |
420 |
|
700 |
355 |
460 |
|
750 |
380 |
475 |
|
800 |
405 |
490 |
|
900 |
456 |
520 |
|
1000 |
507 |
545 |
|
1250 |
633 |
590 |
|
1500 |
760 |
625 |
|
1750 |
887 |
650 |
|
2000 |
1010 |
665 |
Properties of Insulating Materials
Properties of Insulating and Jacketing Materials
| Material Type | Continuous Operating Temperature | Abrasion Resistance | Chemical Resistance | Moisture Resistance | Solvent Resistance | Flame Resistance |
|---|---|---|---|---|---|---|
|
PE |
176°F (80°C) |
Good |
Excellent |
Excellent |
Excellent |
Poor |
|
CPE |
194°F (90°C) |
Very Good |
Excellent |
Excellent |
Excellent |
Excellent |
|
PVC |
221°F (105°C) |
Very Good |
Very Good |
Good |
Fair |
Excellent |
|
TPE |
257°F (125°C) |
Excellent |
Poor |
Good |
Good |
Excellent |
|
Nylon |
250°F (121°C) |
Excellent |
Very Good |
Fair |
Good |
Poor |
|
ETFE |
300°F (150°C) |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
FEP |
400°F (200°C) |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
TE/D |
400°F (200°C) |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
PFA |
500°F (260°C) |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
PTFE |
500°F (260°C) |
Good |
Excellent |
Excellent |
Excellent |
Excellent |
|
Polyimide |
500°F (260°C) |
Excellent |
Excellent |
Excellent |
Good |
Good |
|
B-Fiber* |
500°F (260°C) |
Good |
Good |
Fair |
Good |
Good |
|
G-Glass* |
950°F (510°C) |
Poor |
Good |
Good |
Excellent |
Excellent |
|
Q-Glass* |
1300°F (704°C) |
Fair |
Good |
Good |
Excellent |
Excellent |
|
HG |
1800°F (982°C) |
Poor |
Good |
Poor |
Excellent |
Excellent |
|
CEFIRTM |
2200°F (1204°C) |
Fair |
Good |
Fair |
Excellent |
Excellent |
*Performance characteristics of fibrous products are improved with impregnation. Impregnation maintained to 400°F (200°C).
| Designations | |
| PE | Polyethylene |
| CPE | Chlorinated Polyethylene |
| PVC | Polyvinyl Chloride |
| TPE | Thermoplastic Elastomer |
| Nylon | Polyamide Nylon 6 |
| ETFE | Ethylene-Tetrafluoroethylene |
| FEP | Fluorinated Ethylene Propylene |
| TE/D | Fluorinated Ethylene Propylene |
| PFA | Perflourinated-Tetrafluoroethylene |
| PFTE | Poly-Tetrafluoroethylene |
| Polyimide | Polyimide Tape |
| B-Fiber | Synthetic Polyamide Fibers |
| G-Glass | Braided or Served Fiberglass Yarn |
| Q-Glass | Braided Fiberglass Yarn |
| HG | Braided Vitreous Silica |
| CEFIRTM | Braided Ceramic Fiber |