Extension Cord Too Hot at 800W.

DONNYS · Jul 8, 2013

what matters is amps
at 800 watts u drawing 5.8 0r more amps
14 gauge cord rated for 5.9 and u should never exceed 85% of rating so as others said u overloaded and lucky u didnt have fire
do what u mentioned and split load

qwizoking · Jul 8, 2013

Idk but 14 gauge is rated at 15 amps..

DONNYS · Jul 8, 2013

qwizoking said:
Idk but 14 gauge is rated at 15 amps..

not for power tranmission
[h=2]Breaking Force for Cu Wire[/h] This estimate is based on nick-free soft annealed wire having a tensile strength of 37000 pounds per square inch.

AWG gauge	Conductor Diameter Inches	Conductor Diameter mm	Ohms per 1000 ft.	Ohms per km	Maximum amps for chassis wiring	Maximum amps for power transmission	Maximum frequency for 100% skin depth for solid conductor copper	Breaking force Soft Annealed Cu 37000 PSI
OOOO	0.46	11.684	0.049	0.16072	380	302	125 Hz	6120 lbs
OOO	0.4096	10.40384	0.0618	0.202704	328	239	160 Hz	4860 lbs
OO	0.3648	9.26592	0.0779	0.255512	283	190	200 Hz	3860 lbs
0	0.3249	8.25246	0.0983	0.322424	245	150	250 Hz	3060 lbs
1	0.2893	7.34822	0.1239	0.406392	211	119	325 Hz	2430 lbs
2	0.2576	6.54304	0.1563	0.512664	181	94	410 Hz	1930 lbs
3	0.2294	5.82676	0.197	0.64616	158	75	500 Hz	1530 lbs
4	0.2043	5.18922	0.2485	0.81508	135	60	650 Hz	1210 lbs
5	0.1819	4.62026	0.3133	1.027624	118	47	810 Hz	960 lbs
6	0.162	4.1148	0.3951	1.295928	101	37	1100 Hz	760 lbs
7	0.1443	3.66522	0.4982	1.634096	89	30	1300 Hz	605 lbs
8	0.1285	3.2639	0.6282	2.060496	73	24	1650 Hz	480 lbs
9	0.1144	2.90576	0.7921	2.598088	64	19	2050 Hz	380 lbs
10	0.1019	2.58826	0.9989	3.276392	55	15	2600 Hz	314 lbs
11	0.0907	2.30378	1.26	4.1328	47	12	3200 Hz	249 lbs
12	0.0808	2.05232	1.588	5.20864	41	9.3	4150 Hz	197 lbs
13	0.072	1.8288	2.003	6.56984	35	7.4	5300 Hz	150 lbs
14	0.0641	1.62814	2.525	8.282	32	5.9	6700 Hz	119 lbs
15	0.0571	1.45034	3.184	10.44352	28	4.7	8250 Hz	94 lbs
16	0.0508	1.29032	4.016	13.17248	22	3.7	11 k Hz	75 lbs
17	0.0453	1.15062	5.064	16.60992	19	2.9	13 k Hz	59 lbs
18	0.0403	1.02362	6.385	20.9428	16	2.3	17 kHz	47 lbs
19	0.0359	0.91186	8.051	26.40728	14	1.8	21 kHz	37 lbs
20	0.032	0.8128	10.15	33.292	11	1.5	27 kHz	29 lbs
21	0.0285	0.7239	12.8	41.984	9	1.2	33 kHz	23 lbs
22	0.0254	0.64516	16.14	52.9392	7	0.92	42 kHz	18 lbs
23	0.0226	0.57404	20.36	66.7808	4.7	0.729	53 kHz	14.5 lbs
24	0.0201	0.51054	25.67	84.1976	3.5	0.577	68 kHz	11.5 lbs
25	0.0179	0.45466	32.37	106.1736	2.7	0.457	85 kHz	9 lbs
26	0.0159	0.40386	40.81	133.8568	2.2	0.361	107 kH	7.2 lbs
27	0.0142	0.36068	51.47	168.8216	1.7	0.288	130 kHz	5.5 lbs
28	0.0126	0.32004	64.9	212.872	1.4	0.226	170 kHz	4.5 lbs
29	0.0113	0.28702	81.83	268.4024	1.2	0.182	210 kHz	3.6 lbs
30	0.01	0.254	103.2	338.496	0.86	0.142	270 kHz	2.75 lbs
31	0.0089	0.22606	130.1	426.728	0.7	0.113	340 kHz	2.25 lbs
32	0.008	0.2032	164.1	538.248	0.53	0.091	430 kHz	1.8 lbs
Metric 2.0	0.00787	0.200	169.39	555.61	0.51	0.088	440 kHz
33	0.0071	0.18034	206.9	678.632	0.43	0.072	540 kHz	1.3 lbs
Metric 1.8	0.00709	0.180	207.5	680.55	0.43	0.072	540 kHz
34	0.0063	0.16002	260.9	855.752	0.33	0.056	690 kHz	1.1 lbs
Metric 1.6	0.0063	0.16002	260.9	855.752	0.33	0.056	690 kHz
35	0.0056	0.14224	329	1079.12	0.27	0.044	870 kHz	0.92 lbs
Metric 1.4	.00551	.140	339	1114	0.26	0.043	900 kHz
36	0.005	0.127	414.8	1360	0.21	0.035	1100 kHz	0.72 lbs
Metric 1.25	.00492	0.125	428.2	1404	0.20	0.034	1150 kHz
37	0.0045	0.1143	523.1	1715	0.17	0.0289	1350 kHz	0.57 lbs
Metric 1.12	.00441	0.112	533.8	1750	0.163	0.0277	1400 kHz
38	0.004	0.1016	659.6	2163	0.13	0.0228	1750 kHz	0.45 lbs
Metric 1	.00394	0.1000	670.2	2198	0.126	0.0225	1750 kHz
39	0.0035	0.0889	831.8	2728	0.11	0.0175	2250 kHz	0.36 lbs
40	0.0031	0.07874	1049	3440	0.09	0.0137	2900 kHz	0.29 lbs

qwizoking · Jul 8, 2013

Lol I don't know what that means just that their is a 15amp fuse attached to my 14 gauge and Google says 15 but some people say an AC can be on 20. Could you please elaborate I'm no electrician or anything

DONNYS · Jul 8, 2013

qwizoking said:
Lol I don't know what that means just that their is a 15amp fuse attached to my 14 gauge and Google says 15 but some people say an AC can be on 20. Could you please elaborate I'm no electrician or anything

well if that was true then cord would not be getting hot
and btw how long is cord?

qwizoking · Jul 8, 2013

I'm not trying to argue simply to understand..

Thanks for the help

DONNYS · Jul 8, 2013

qwizoking said:
I'm not trying to argue simply to understand..

Thanks for the help

i know your not
i didnt mean it like that lol

Ilovebush · Jul 8, 2013

Don't take any chances with electrical...the snake said it right with 12 gauge. Extension cords are shit and shouldn't be used in your grow...ROMEX or BX wiring only. You don't want to get this part wrong.
'

Sunbiz1 · Jul 8, 2013

DONNYS said:
not for power tranmission
Breaking Force for Cu Wire

This estimate is based on nick-free soft annealed wire having a tensile strength of 37000 pounds per square inch.

AWG gauge Conductor
Diameter Inches Conductor
Diameter mm Ohms per 1000 ft. Ohms per km Maximum amps for chassis wiring Maximum amps for
power transmission Maximum frequency for
100% skin depth for solid conductor copper Breaking force Soft Annealed Cu 37000 PSI
OOOO 0.46 11.684 0.049 0.16072 380 302 125 Hz 6120 lbs
OOO 0.4096 10.40384 0.0618 0.202704 328 239 160 Hz 4860 lbs
OO 0.3648 9.26592 0.0779 0.255512 283 190 200 Hz 3860 lbs
0 0.3249 8.25246 0.0983 0.322424 245 150 250 Hz 3060 lbs
1 0.2893 7.34822 0.1239 0.406392 211 119 325 Hz 2430 lbs
2 0.2576 6.54304 0.1563 0.512664 181 94 410 Hz 1930 lbs
3 0.2294 5.82676 0.197 0.64616 158 75 500 Hz 1530 lbs
4 0.2043 5.18922 0.2485 0.81508 135 60 650 Hz 1210 lbs
5 0.1819 4.62026 0.3133 1.027624 118 47 810 Hz 960 lbs
6 0.162 4.1148 0.3951 1.295928 101 37 1100 Hz 760 lbs
7 0.1443 3.66522 0.4982 1.634096 89 30 1300 Hz 605 lbs
8 0.1285 3.2639 0.6282 2.060496 73 24 1650 Hz 480 lbs
9 0.1144 2.90576 0.7921 2.598088 64 19 2050 Hz 380 lbs
10 0.1019 2.58826 0.9989 3.276392 55 15 2600 Hz 314 lbs
11 0.0907 2.30378 1.26 4.1328 47 12 3200 Hz 249 lbs
12 0.0808 2.05232 1.588 5.20864 41 9.3 4150 Hz 197 lbs
13 0.072 1.8288 2.003 6.56984 35 7.4 5300 Hz 150 lbs
14 0.0641 1.62814 2.525 8.282 32 5.9 6700 Hz 119 lbs
15 0.0571 1.45034 3.184 10.44352 28 4.7 8250 Hz 94 lbs
16 0.0508 1.29032 4.016 13.17248 22 3.7 11 k Hz 75 lbs
17 0.0453 1.15062 5.064 16.60992 19 2.9 13 k Hz 59 lbs
18 0.0403 1.02362 6.385 20.9428 16 2.3 17 kHz 47 lbs
19 0.0359 0.91186 8.051 26.40728 14 1.8 21 kHz 37 lbs
20 0.032 0.8128 10.15 33.292 11 1.5 27 kHz 29 lbs
21 0.0285 0.7239 12.8 41.984 9 1.2 33 kHz 23 lbs
22 0.0254 0.64516 16.14 52.9392 7 0.92 42 kHz 18 lbs
23 0.0226 0.57404 20.36 66.7808 4.7 0.729 53 kHz 14.5 lbs
24 0.0201 0.51054 25.67 84.1976 3.5 0.577 68 kHz 11.5 lbs
25 0.0179 0.45466 32.37 106.1736 2.7 0.457 85 kHz 9 lbs
26 0.0159 0.40386 40.81 133.8568 2.2 0.361 107 kH 7.2 lbs
27 0.0142 0.36068 51.47 168.8216 1.7 0.288 130 kHz 5.5 lbs
28 0.0126 0.32004 64.9 212.872 1.4 0.226 170 kHz 4.5 lbs
29 0.0113 0.28702 81.83 268.4024 1.2 0.182 210 kHz 3.6 lbs
30 0.01 0.254 103.2 338.496 0.86 0.142 270 kHz 2.75 lbs
31 0.0089 0.22606 130.1 426.728 0.7 0.113 340 kHz 2.25 lbs
32 0.008 0.2032 164.1 538.248 0.53 0.091 430 kHz 1.8 lbs
Metric 2.0 0.00787 0.200 169.39 555.61 0.51 0.088 440 kHz
33 0.0071 0.18034 206.9 678.632 0.43 0.072 540 kHz 1.3 lbs
Metric 1.8 0.00709 0.180 207.5 680.55 0.43 0.072 540 kHz
34 0.0063 0.16002 260.9 855.752 0.33 0.056 690 kHz 1.1 lbs
Metric 1.6 0.0063 0.16002 260.9 855.752 0.33 0.056 690 kHz
35 0.0056 0.14224 329 1079.12 0.27 0.044 870 kHz 0.92 lbs
Metric 1.4 .00551 .140 339 1114 0.26 0.043 900 kHz
36 0.005 0.127 414.8 1360 0.21 0.035 1100 kHz 0.72 lbs
Metric 1.25 .00492 0.125 428.2 1404 0.20 0.034 1150 kHz
37 0.0045 0.1143 523.1 1715 0.17 0.0289 1350 kHz 0.57 lbs
Metric 1.12 .00441 0.112 533.8 1750 0.163 0.0277 1400 kHz
38 0.004 0.1016 659.6 2163 0.13 0.0228 1750 kHz 0.45 lbs
Metric 1 .00394 0.1000 670.2 2198 0.126 0.0225 1750 kHz
39 0.0035 0.0889 831.8 2728 0.11 0.0175 2250 kHz 0.36 lbs
40 0.0031 0.07874 1049 3440 0.09 0.0137 2900 kHz 0.29 lbs

This helps, but still need a max wattage per AWG gauge as labeled on my extension cords.

Sunbiz1 · Jul 8, 2013

Ilovebush said:
Don't take any chances with electrical...the snake said it right with 12 gauge. Extension cords are shit and shouldn't be used in your grow...ROMEX or BX wiring only. You don't want to get this part wrong.
'

I don't have a large enough indoor op to justify the expenditure.

Peace

DONNYS · Jul 8, 2013

cord be ok just split load
how long is cord and u sure it aint 16 g ?

Sunbiz1 · Jul 8, 2013

DONNYS said:
cord be ok just split load
how long is cord and u sure it aint 16 g ?

I'm good for now, cords are nice and cool after dividing usage

But the math variables on cord power loads threw me for a loop,

What I originally assumed should be a simple formula turned into calculus. :bigjoint:

DONNYS · Jul 8, 2013

Sunbiz1 said:
I'm good for now, cords are nice and cool after dividing usage

But the math variables on cord power loads threw me for a loop,

What I originally assumed should be a simple formula turned into calculus.

cool and yep that shit confusing

Extension Cord Too Hot at 800W.

DONNYS

New Member

qwizoking

Well-Known Member

DONNYS

New Member

qwizoking

Well-Known Member

DONNYS

New Member

qwizoking

Well-Known Member

DONNYS

New Member

Ilovebush

Well-Known Member

Sunbiz1

Well-Known Member

Sunbiz1

Well-Known Member

DONNYS

New Member

Sunbiz1

Well-Known Member

DONNYS

New Member