ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,854 Are you busy
169,644 Re: Forum
162,889 Need opinion
Who's Online Now
0 registered members (), 62 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 1 of 2 1 2
#143280 - 06/23/05 06:31 AM Yellow cord = 110 volts ?  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
There was a short thread on the IEE Forum a few weeks ago asking about hookup cords for campsite use.

The ready-made leads sold here almost always have orange flex, but I mentioned that when I make hookup leads for myself I've always preferred to use yellow. In fact I've just made up a new 25' cord for my RV project using "Arctic" yellow (blue CEE connectors for 240V, of course).

One person mentioned that to him a yellow cord would suggest 110 volts. Of course, the CEEform connectors, site transformers, and extension leads for U.K. 110V construction tools are indeed almost universally yellow, but I've never automatically associated the color of the flex with the voltage in use.

This has just been bugging me, so I have to ask: Do any of ECN's Brit members associate yellow with 110V to the point where you would consider its use for anything else odd?


Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement

#143281 - 06/23/05 06:59 AM Re: Yellow cord = 110 volts ?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Paul,
My understanding of the flex colours was that White was for Light Duty (House-hold) use.
Grey for Ordinary (Office) Duty use.
Orange and Yellow for Heavy (Commercial/Industrial) Duty use.
Just my $0.02 worth. [Linked Image]

[This message has been edited by Trumpy (edited 06-23-2005).]


Let's face it, these days if you're not young, you're old - Red Green grin

#143282 - 06/23/05 07:16 AM Re: Yellow cord = 110 volts ?  
Hutch  Offline
Member
Joined: May 2002
Posts: 381
South Oxfordshire, UK
Interesting one that. As one on the outside looking in, so to speak, I would associate yellow flex cable with 110V purely because that is the only use I’ve ever seen them put to. The caravan I’m staying at the moment has a white cable with blue 240V CEE plug and trailing socket and I’ve noticed from looking around the site that the made-up ones tend to be orange or blue cables – not a yellow one seen yet.

Of course the 110V extension leads that are about to be used in South Oxfordshire chez Hutch will be orange with black or orange NEMA 5-15 plugs and sockets on them ‘coz that’s what I’ve got! [Linked Image]


#143283 - 06/23/05 09:07 AM Re: Yellow cord = 110 volts ?  
Texas_Ranger  Offline
Member
Joined: Dec 2001
Posts: 2,393
Vienna, Austria
Another outside view... the colors don't seem to be international. Light duty cords can have any fancy color. Medium duty cords (PVC sheathed, used for office, work shop, garden, type H05-VV-F) are usually red, orange or yellow, but can be black or white too. Heavy duty construction grade cords (synthetic rubber sheathed H07-RN-F) are always yellow or black.


#143284 - 06/23/05 05:05 PM Re: Yellow cord = 110 volts ?  
gideonr  Offline
Member
Joined: Dec 2004
Posts: 161
Edinburgh, Scotland, UK
I associate yellow with 110V, probably because the plugs are yellow too. Orange is often used for 'mower' extension leads, with the plugs being orange as well. S'pose it contrasts well with the green grass.


#143285 - 06/23/05 05:38 PM Re: Yellow cord = 110 volts ?  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Thanks for the feedback everyone.

Certainly I would never associate light-duty appliance cords by color whatsoever, as all sorts of things have been used. For example, I still have a length of 2-core flex with a pink outer jacket in my junkbox, salvaged from an old electric blanket which also had a pink switch to match the blanket itself. And of course, all the old vintage radio gear can have anything from white, to light beige, to tan, to dark brown, plus a few other oddball colors as well.

Interesting the comment about blue cords for campsite hookups, as somebody on the IEE forum mentioned such, saying that it would be a good color. Personally, I would have thought orange, yellow, or even plain white would stand out much better than blue against the ground.


#143286 - 06/23/05 06:56 PM Re: Yellow cord = 110 volts ?  
chipmunk  Offline
Member
Joined: Jul 2004
Posts: 144
Southampton, UK
For myself, I tend to go more by the colour/type of end connectors, rather than the colour of the cord itself. I think yellow for caravan/mobile home hookups is an excellent idea, more visible even than the orange.

One thing I noted when in the US is the availability of green cords for garden equipment, which seems odd to me, given that people will then be encouraged to tack it along a fence/wall, or use it for the electric mower/edger and then cut through it because they didn't see it. This seems at odds with UL's and the NEC's practice of discouraging potentially hazardous situations.


#143287 - 06/24/05 02:45 AM Re: Yellow cord = 110 volts ?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Doesn't 110V carry (roughly) twice the current of a 240V circuit?.
As far as a flexible cord goes?.
Mind you, as far as Paul's first post goes, in a campsite, the blue (IEC 309) plugs they are "Standard" for single phase caravans, we even use them here.
Paul,
Yes that was for sure a silly idea, that you base a flexible cord on it's colour, but over here it is a fact, even my friends from Australia would back that up.
Anything Blue here as far as cables go, would be made for low temperatures.
A little off-topic, but we have purple sheathed TPS made for contact with Poly-styrene, for use in Cooler wall buildings.


Let's face it, these days if you're not young, you're old - Red Green grin

#143288 - 06/24/05 03:16 AM Re: Yellow cord = 110 volts ?  
Alan Belson  Offline
Member
Joined: Mar 2005
Posts: 1,803
Mayenne N. France
Excellent point Trumpy, it's not just me then! I read somewhere yonks ago that polystyrene foam should not be allowed to come in permanent contact with pvc cable insulation in a building. Some sort of reaction between the plastics causing degradation of the insulation? In my workshop I have 60mm (2 1/2") P.S. foam/10mm sheetrock as the insulation boards and ran a lap of heavy polythene DPC over the cabling and pvc conduit before fixing the plasterwork, poo-pooed by the Scot neighbour as a waste of time.
Alan


Wood work but can't!

#143289 - 06/24/05 09:36 AM Re: Yellow cord = 110 volts ?  
gideonr  Offline
Member
Joined: Dec 2004
Posts: 161
Edinburgh, Scotland, UK
Styrene is a solvent to many other plastics. For example, polyester resin, for fibre-glass etc., in the raw liquid state is dissolved in styrene, and the styrene evaporates off as the polyester cures. Polystyrene gradually breaks back down to styrene.

PVC cables I've seen that have had a long term exposure to styrene seem to go greasy and soft.


Page 1 of 2 1 2

Member Spotlight
Tom
Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.017s Queries: 15 (0.004s) Memory: 0.8202 MB (Peak: 0.9977 MB) Zlib enabled. Server Time: 2017-04-28 06:15:06 UTC