Author Topic: 7.5m plug it cord  (Read 2502 times)

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Online mwbrewster

  • Posts: 39
7.5m plug it cord
« on: May 25, 2018, 11:38 PM »
I just received the 7.5m plug it cord.  I ordered it because I joined two stock 3.5m hoses for a longer reach and I like to wrap the plug it along the length of the hose (as I'm sure a lot of you do as well).  Does anyone have any horror stories running various tools with this longer cord (i.e. voltage drop over the longer run, burning motors out, etc..)?  I feared using a 3rd party extension cord would negate the respective warantees should anything go wrong.

Thanks in advance. Matt.

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Offline TinyShop

  • Posts: 182
Re: 7.5m plug it cord
« Reply #1 on: May 26, 2018, 12:42 AM »
Two points:

1) were it even an issue (which it's not) how, pray tell, would Festool ever know you were using a third party accessory (like an extension cord) unless, that is, you were to blabber about it; and

2) as was recently pointed out elsewhere on this forum, it's illegal in the U.S.A for a manufacturer to deny a warranty claim based on a consumer's use of a third party accessory.

Offline Joe Felchlin

  • Posts: 97
Re: 7.5m plug it cord
« Reply #2 on: May 26, 2018, 09:55 AM »
Matt:
In regard to your longer Plug It Cord: If Festool made it...
So it should be “good to go” with any Festool tool.

TinyShop is correct with both of his points.
So again... “Good to Go”.

I’ve used 25’ (reaching the length of my shop) and shorter, extension cords -
With all of my 110V tools (Festool and otherwise) - For years - With no problems.
Including my PC7518 Router, my Powermatic Band Saw, and my Bosch 5412L Miter Saw.
But...
I don’t use the common/cheaper 14 Gauge cords.
I use the heavier 12 Gauge cords.
Over 25’ (and the length of the tool’s cord) - They carry the amps/voltage.

« Last Edit: June 19, 2018, 08:56 AM by Joe Felchlin »
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Online mwbrewster

  • Posts: 39
Re: 7.5m plug it cord
« Reply #3 on: May 26, 2018, 01:41 PM »
Two points:

1) were it even an issue (which it's not) how, pray tell, would Festool ever know you were using a third party accessory (like an extension cord) unless, that is, you were to blabber about it;

Guilty conscious I guess, naive i know.

Offline RustE

  • Posts: 293
7.5m plug it cord
« Reply #4 on: May 26, 2018, 02:20 PM »
I went through a similar debate.

After discussing with a friend, we concluded that the 7.5m 16g plug-it cord is sufficient for the 1200w motor on the HK55EQ when plugged directly into an outlet.  We also thought that the 10m plug-it cord should be 14g instead of 16g.

As previously mentioned, most of my general purpose extension cords are 12g with lengths of 10ft or 25ft.
« Last Edit: May 26, 2018, 02:25 PM by RustE »

Offline aloysius

  • Posts: 264
Re: 7.5m plug it cord
« Reply #5 on: May 26, 2018, 02:23 PM »
Voltage drop is only an issue when one or more of the following scenarios is in play:
(a)  the cord is crap;  i.e. < 1mm squared cross sectional area for longer cables, 0.75mm for shorter.
(b)  the cord is too long;  > 30m (100')+.  I've seen some twice that (albeit 2.5mm) that still function well.
(c)  you're trying to force too much juice through;  >10A @ 240v or 20A @ 110.

None of these conditions apply here, so it's only academic really.  I challenge you or anybody else to notice the difference in performance blindfolded irrespective of the tool connected.

The only tool where those higher 110v currents are an issue is with that rather disappointing KS120, which suffers from puny motor windings.  As this doesn't utilise the plug-it hose, again it's irrelevant.

Voltage drop from a dodgy plug-it connection is much more likely to be an issue than from a "mere" 7.5m of cable.

You can actually feel when voltage drop is an issue:  the cables, connectors, whatever become warm to the touch in the places where current flow becomes restricted.
FOG-wit since '95:  Some say since birth...

Offline Coen

  • Posts: 352
Re: 7.5m plug it cord
« Reply #6 on: June 19, 2018, 07:52 AM »
Voltage drop is only an issue when one or more of the following scenarios is in play:
(a)  the cord is crap;  i.e. < 1mm squared cross sectional area for longer cables, 0.75mm for shorter.
(b)  the cord is too long;  > 30m (100')+.  I've seen some twice that (albeit 2.5mm) that still function well.
(c)  you're trying to force too much juice through;  >10A @ 240v or 20A @ 110.

(a) depends on current
(b) Again a function of current and cross section. 10m at 1mm2 equals 25m at 2,5mm2.
(c) No idea why you double the current for 110V in relation to "too much". The voltage drop of 20A at 110V will be double compared to 10A at 240V, or four times bigger relative to nominal voltage (at 230 v 115). That's why in Europe we don't have this problem nearly as much as all currents are half for the same power. We also only have one type of Plug It cable, as everything just runs perfectly fine off of 1mm2.

OT; oh wow, didn't know they have a 10m cord now. I bought a 7.5mm years ago when they didn't offer 10m.