ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Is this safe?
by twh. 04/26/18 10:47 PM
Inspections and Testing
by HotLine1. 04/25/18 08:41 AM
FEMA height and electrical equiment.,
by HotLine1. 04/20/18 08:49 AM
This anti-theist is priceless!!!
by LongRunner. 04/19/18 04:02 PM
Recall notice: Square D Services Switches
by gfretwell. 04/18/18 01:24 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
2 registered members (gfretwell, 1 invisible), 12 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Took Limited Test - Have Questions #99491
01/18/06 04:30 PM
01/18/06 04:30 PM
S
Squintz  Offline OP
Junior Member
Joined: Jul 2005
Posts: 9
Harford, Maryland
I just took a limited license test last night and I was shocked to see some of the stuff on the test. I am trying to recall a few questions just to see if I got them right. Please pardon me if the way I word them does not make since.

---
One question asked about what hazardous classes must conform to article 250 for remote-control of a power panel.

I listed Class 1, 2, and 3. Does anyone know if this is correct.
---

Another should have been a simple one but for some reason I am second guessing my self. I was what is a MIL.

My answer was millionth but the options 1/8 and a few others were listed and I am not sure what the correct answer is.

---

And another was what is the maximum VA allowed on the secondary side of a transformer and it said something like not refering to Class 2 exceptions.

I put 10,000 VA.

---

Lastly, There was a question about when is running ac / dc in a raceway permitted.

I answered when the insulation is suitable for the voltage passing though the wires but I was thinking never because chances are the DC cable is some data cable that you would not want to run with an AC cable anyways.

2017 / 2014 NEC & Related Books and Study Guides
Re: Took Limited Test - Have Questions #99492
01/19/06 01:32 PM
01/19/06 01:32 PM
G
gfretwell  Online Content

Member
Joined: Jul 2004
Posts: 9,201
Estero,Fl,usa
It is tough to give definitive answers without actually seeing the text of the question. A lot of time the presence of words like "not", "always" and "never" can change the answer for something that looks like a slam dunk.
I can say "mil" is 1000.
You can't usually mix low voltage and line voltage without separation.
Without seeing the question I would guess "class 1 only" on the 725 question and the transformer question would really depend on the exact wording so you know where you are going.

[This message has been edited by gfretwell (edited 01-19-2006).]


Greg Fretwell
Re: Took Limited Test - Have Questions #99493
01/19/06 08:13 PM
01/19/06 08:13 PM
T
Trick440  Offline
Member
Joined: Aug 2005
Posts: 248
Waterford, MI, USA
You can't mix low and high voltage wires.

You can't even run them in the same holes in 2x4. And if they come in the same box, like a fireplace switch for the blower and low volt igniter you need a box divider.


Shake n Bake
Re: Took Limited Test - Have Questions #99494
02/23/06 11:03 PM
02/23/06 11:03 PM
Y
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 840
Michigan
Class 1 And other circuits 725-26 - 725-55
Class 2&3 and other circuits 725-56
2002 NEC

Re: Took Limited Test - Have Questions #99495
02/25/06 07:25 PM
02/25/06 07:25 PM
J
jfwayer  Offline
Member
Joined: May 2005
Posts: 30
Fairmont, WV, USA
AC/DC

300.3(C)(1)

Conductors of Different Systems.
(1) 600 Volts, Nominal, or Less. Conductors of circuits rated 600 volts, nominal, or less, ac circuits, and dc circuits shall be permitted to occupy the same equipment wiring enclosure, cable, or raceway. All conductors shall have an insulation rating equal to at least the maximum circuit voltage applied to any conductor within the enclosure, cable, or raceway.


JFW
Re: Took Limited Test - Have Questions #99496
02/26/06 12:08 AM
02/26/06 12:08 AM
Y
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 840
Michigan
2005 NEC 300.3(c-1)Note fine print note refering to article 725


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
NickD
NickD
Amish Country, PA
Posts: 46
Joined: March 2013
Show All Member Profiles 
Top Posters(30 Days)
twh 4
Popular Topics(Views)
245,940 Are you busy
183,031 Re: Forum
172,788 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.022s Queries: 14 (0.003s) Memory: 0.9768 MB (Peak: 1.1177 MB) Zlib enabled. Server Time: 2018-04-27 03:04:40 UTC