Video Archive         Recent Topics      
YMR logo

You are here:  Your Model Railway Club > Getting You Started. > Electrics - DCC > Wiring the layout (and including DCC) To bottom of page
                 

 Moderated by: Spurno
Start New Topic Reply Printer Friendly

Wiring the layout (and including DCC) - Electrics - DCC - Getting You Started. - Your Model Railway Club
AuthorPost
 Posted: Thu Apr 25th, 2019 07:22 pm
PMQuoteReply
link to this 1st post
BCDR
Moderator


Joined: Sat Oct 19th, 2013
Location: Reston, Virginia USA
Posts: 2883
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Hi all,

I decided to start a topic on how to wire a layout, mainly focused on DCC, but most of this will apply to DC as well. Throw in your 2-cents/pence worth based on your own experiences by all means, I'll try and cover the good, the bad and the "who'd a thought it" stuff I've come across over the years.

Scotchloks (suitcases, clam-shells). Used to connect rail droppers to the bus. You either love love 'em or hate 'em. Saw this the other day on a double track helix at a layout tour - they must have been breeding:



They are fine if used correctly, more on that in the next post, because they can come back and bite you if not used correctly.

Nigel



____________________
©Nigel C. Phillips
Back To Top PMQuoteReply

 Posted: Thu Apr 25th, 2019 09:35 pm
PMQuoteReply
link to this 2nd post
BCDR
Moderator


Joined: Sat Oct 19th, 2013
Location: Reston, Virginia USA
Posts: 2883
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Hi All,

North America = AWG, Europe = metric, Australia seems happy with just the diameter/area (sensible, but Ron will correct me) so what's what? Most of the standards for wiring for DCC come from over where I live, the metric world follows an IEC standard, so let's have a quick summary of the nearest equivalents using commonly recomended gauges (metric is in mm squared).

12-14 AWG, commonly used for the bus wiring. 2.5mm or 1.5mm.

18 or 20 AWG, commonly used for rail dropper to bus wiring: 1mm or 0.5mm.

Dont worry about using even smaller diameter wires (22 gauge for example) unless you have more than a brace of engines on a wired section the current is unlikely to exceed the wire rating. Metric stops at 0.5mm, so even less of an issue.

Now all of this has an impact on Scotchloks and other brand tap connectors. They work with a large diameter wire (the tap) feeding a smaller diameter wire (the connector) using a blade that cuts through the plastic insulation and contacts the bare wires without cutting through them. Two examples of AWG taps are shown below. And here is an issue - it is difficult to use just one tap connector in going from a 14 gauge bus to a 22 gauge dropper without using 2 taps in series. And it looks like the same issue will apply to metric sizing. Red Connectors: 0.4mm - 1mm. Blue Connectors: 1.1mm - 2.6mm. Yellow Connectors: 2.5mm - 6.5mm. Which I suspect is based on AWG sizing as none of the sizes are IEC. Plus they are supposed to be used with solid core, not stranded wire, the latter will have strands cut during compression.

Nigel





____________________
©Nigel C. Phillips
Back To Top PMQuoteReply

This is topic ID = 16058     Current time is 09:36 am  
You are here:  Your Model Railway Club > Getting You Started. > Electrics - DCC > Wiring the layout (and including DCC)
You can type a quick reply to this topic here. Click in the box below to begin.

Or to reply to an individual post, or to include images, attachments and formatted text,
click the Quote or Reply buttons on each post above.

To start a new topic in this forum, click the Start New Topic button below.
To start a new topic in a different forum, click the Forum Jump drop-down list below.
Start New Topic


Back to top of page

           
15 Most Recent Topics

Problems with this web site? Please contact the Webmaster.

All material submitted to this web site is the responsibility of the respective contributor. By submitting material to this web site you acknowledge that you accept full responsibility for the material submitted.
Unless stated otherwise, all the material displayed on this web site, including all text, photographs, drawings and other images, is copyright and the property of the respective contributor. Registered members are welcome to use it for their own personal non-commercial modelmaking purposes. It must not be reproduced or re-published elsewhere in any form, or used commercially, without first obtaining the owner's express permission.
The owner of this web site may edit, modify or remove any content at any time without giving notice or reason.    © 2008

                 

Recent Topics Back to top of page

Powered by UltraBB 1.15 Copyright © 2007-2011 by Jim Hale and Data 1 Systems. Page design copyright © 2008-2013 Martin Wynne. Photo gallery copyright © 2009 David Williams.