The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 7
Trumpy 6
Who's Online
1 registered (gfretwell), 129 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#144180 - 10/17/05 04:28 PM Commercial/Industrial Sockets
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
What do you guys use for connectors at any voltage over your standard single phase voltage?.
Here we would use sockets that look like this:

4-pin, 20A, 500V socket:



Usually used for 3-phase Delta loads.

5-pin, 20A, 500V socket:



Used for 3-phase Star loads.

Unrelated, but here is a single-phase appliance inlet:

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

Top
Test Equipment:

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

#144181 - 10/17/05 11:39 PM Re: Commercial/Industrial Sockets
Texas_Ranger Offline
Member

Registered: 12/17/01
Posts: 2343
Loc: Vienna, Austria
Only CEE, all sorts of. Most common is red 5 pole (i.e. 4p w/ ground, rated for 400V phase voltage.

Top
#144182 - 10/18/05 02:58 AM Re: Commercial/Industrial Sockets
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Ditto here. You might find some of the older style connectors if you search hard enough, but the CEE/IEC309/BS4343 type has been the standard for a good many years.

3P+E for 415V delta connections (mostly motors):






4P+E for 240/415V with neutral:





These are the 16-amp versions. 32A are similar, just physically larger.

Top
#144183 - 10/18/05 05:03 AM Re: Commercial/Industrial Sockets
IanR Offline
Member

Registered: 12/06/04
Posts: 326
Loc: Palm Bay FL USA
Here in the states we have a colossal array of different connectors. Aside from the IEC309 we have many more.

View this link look at pages 18 to 23 http://www.leviton.com/pdfs/d-503/d-503T.pdf

{Message edited to remove multiple edit messages}

[This message has been edited by Trumpy (edited 10-21-2005).]

Top
#144184 - 10/18/05 05:13 AM Re: Commercial/Industrial Sockets
IanR Offline
Member

Registered: 12/06/04
Posts: 326
Loc: Palm Bay FL USA
Actually there are some configurations that are not used any more. 2-15, 2-20, and 2-30 are basically unheard of anymore. 1-15 plugs are very common. 1-15 receptacles can still be found in older instalations but are becoming more rare. As for the other 2pin connectors, ouside of a few combination 1-15/2-15 recepticals I have never even seen any. There are also a few more nonstandard proprietary connectors that are not shown, yet are still seen commonly in industry. Hubbell's Hubbelock is one example. You see it used in hospitals for portable Xray machines and in a few industrial settings.

[This message has been edited by IanR (edited 10-18-2005).]

Top
#144185 - 10/18/05 06:46 AM Re: Commercial/Industrial Sockets
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
One thing I like about the NEMA flat-blade configurations is the interchangability where appropriate.

For example, a 5-15 receptacle will accept a 5-15 plug or a 1-15 plug (either the polarized or the non-polarized variety) A 5-20 receptacle will accept the appropriate 5-20 or 1-20 plugs, and the 5-15 and 1-15 types as well. Ditto for the 6-xx 240V versions.

Under the old round-pin BS configurations there was no such compatibility. We had both 2-pin non-grounding and 3-pin grounding versions of 5-amp plugs, for instance, but a 2-pin non-grounding 5A plug would not fit a 3-pin grounding 5A receptacle.


To complete the picture on the IEC309 connectors, the other two most commonly used configurations are:

2P+E 240V, used widely in industry for general-purpose single-phase loads, and the 16A version is virtually universal for campsite electrical hookups for RVs and travel trailers:



2P+E 110V, used for our low-voltage building site power tools on a center-tapped 55-0-55V system:





[This message has been edited by pauluk (edited 10-18-2005).]

Top
#144186 - 10/19/05 03:24 AM Re: Commercial/Industrial Sockets
djk Offline
Member

Registered: 12/26/02
Posts: 1269
Loc: Ireland
We're supposed to use the blue 16A fittings for ALL outdoor sockets. BS1363 with weather-proofing isn't allowed by the regs. Directly connected to a 16/20A radial or, if it's a ring... connect via a local fuse (e.g. a 13A spur located inside)
(RCD required as per all >32A socket outlets)

Top
#144187 - 10/19/05 04:40 AM Re: Commercial/Industrial Sockets
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
 Quote:
We're supposed to use the blue 16A fittings for ALL outdoor sockets.


That seems rather like overkill for a domestic installation, but I suppose they're cheap enough.

Lewden still makes a weatherproof range based on BS546 configurations:





The socket is handy because you can use not only the matching weatherproof plug but also any other BS546 plug (in dry conditions of course).

They make 4- and 5-pin versions for 415V 3-ph, and a BS1363 version for 1-ph.

Top
#144188 - 10/20/05 05:33 AM Re: Commercial/Industrial Sockets
IanR Offline
Member

Registered: 12/06/04
Posts: 326
Loc: Palm Bay FL USA
[qoute]That seems rather like overkill for a domestic installation, but I suppose they're cheap enough.[/quote]

I wish we used them more here in the states. Unfotuneatly they are not cheap over here. Where as TLC charges a couple of pounds for a 16A plug, over here they go for anywhere between $30-80

Top
#144189 - 10/20/05 08:58 AM Re: Commercial/Industrial Sockets
djk Offline
Member

Registered: 12/26/02
Posts: 1269
Loc: Ireland
Paul,

The weather-proofed BS1363 sockets do appear in outdoor domestic installations, but a contractor's not supposed to install them. They're sold by the likes of B&Q ... as are cooker control switches with a socket (also banned by the regs here)

Here's the quote from the ETCI's FAQs for consumers.

Q: Are there special plugs and sockets for outdoor installations and if so why?
A: Yes. We like most mainland Europe countries do not consider indoor plugs to be suitable for outdoor installations subject to weather and rough handling and so ordinary 13A sockets to I.S. 401 are not suitable for outdoor use. Like all socket outlets up to 32A, they should be protected by an RCD. The Rules require that outdoor sockets and industrial sockets comply with IS/EN60309 standard. In this system both the plug and socket are hard wearing and are deemed to be suitable for outdoor use. The single phase plug is coloured blue and the socket is inclined towards the ground to prevent the ingress of moisture. They may be more cumbersome than the flat pin plug system but they are safer.

(They're blaiming mainland european practice for their overkill regulations - yet I don't think very many Mainland European countries actually enforce anything quite so strict - then again there are parts of the west of ireland where it can rain horizontally for 7 days or where you can get a type of misty rain "mizzle" that requires ships deck fittings to be 100% safe

[This message has been edited by djk (edited 10-20-2005).]

Top
Page 1 of 2 1 2 >



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals