ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by gfretwell. 10/19/17 01:02 AM
Generator Cable Sizing
by brsele. 10/18/17 07:39 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,395 Are you busy
177,352 Re: Forum
168,962 Need opinion
Who's Online Now
0 registered members (), 52 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#195781 - 08/23/10 10:25 AM Industrial Control Panels - Installation  
michelebacocchia  Offline
New Member
Joined: Aug 2010
Posts: 7
Italy
Dear all,

I'm new in this forum, I hope someone will help me...

Is it possible to install some panelboards in a control cabin, in my case is a mobile office?
Does the mobile office must have some certificates to install the panelboards inside it?
I'd clarify that the panelboard is classified as "Industrial control panels".


Thanks.


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

#195785 - 08/23/10 02:11 PM Re: Industrial Control Panels - Installation [Re: michelebacocchia]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,123
Estero,Fl,usa
By "mobile office" are you talking about something with wheels on it?
In the US a trailer or motorized office like that would usually be titled as a "recreational vehicle" to avoid stricter requirements a "home". (US Department of Housing and Urban Development rules).

In the NEC that puts you in Article 551.
Quote

551.45 Distribution Panelboard.
(A) Listed and Appropriately Rated. A listed and appropriately rated distribution panelboard or other equipment specifically listed for this purpose shall be used. The grounded conductor termination bar shall be insulated from the enclosure as provided in 551.54(C). An equipment grounding terminal bar shall be attached inside the enclosure of the panelboard.
(B) Location. The distribution panelboard shall be installed in a readily accessible location with the RV in the setup mode. Working clearance for the panelboard with the RV in the setup mode shall be not less than 600 mm (24 in.) wide and 750 mm (30 in.) deep.
Section 551.45(B) was revised for the 2008 Code. Some recreational vehicles have expandable room sections (or slide-out rooms) that are in a stowed position when the vehicle travels from place to place. Working clearance in front of equipment in an expandable section must be maintained when the section is expanded in the setup mode.
Exception No. 1: Where the panelboard cover is exposed to the inside aisle space, one of the working clearance dimensions shall be permitted to be reduced to a minimum of 550 mm (22 in.). A panelboard is considered exposed where the panelboard cover is within 50 mm (2 in.) of the aisle’s finished surface.
Exception No. 2: Compartment doors used for access to a generator shall be permitted to be equipped with a locking system.
(C) Dead-Front Type. The distribution panelboard shall be of the dead-front type and shall consist of one or more circuit breakers or Type S fuseholders. A main disconnecting means shall be provided where fuses are used or where more than two circuit breakers are employed. A main overcurrent protective device not exceeding the power-supply assembly rating shall be provided where more than two branch circuits are employed.



Greg Fretwell

#195790 - 08/23/10 04:46 PM Re: Industrial Control Panels - Installation [Re: gfretwell]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I think we need to know the specifics; I suspect you have a specific issue you are trying to address.

In the most basic terms, placing a bunch of switchgear and transformers in a box on wheels has the effect of making it all into a single 'appliance.' In certain applications, I can see the AHJ wanting a UL sticker, engineers' stamp, or some such assurance that the various clearance and grounding issues have been properly addressed.

For good or bad, there is a growing bias against any 'home-built' efforts where there is a commercial product available. It's been my practice to research the relevant standards, and be able to demonstrate to all that my assembly almost certainly would pass such an examination.


#195799 - 08/23/10 10:10 PM Re: Industrial Control Panels - Installation [Re: renosteinke]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,872
Brick, NJ USA
Anybody notice the OP is in Italy?



John

#195801 - 08/23/10 11:01 PM Re: Industrial Control Panels - Installation [Re: HotLine1]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,123
Estero,Fl,usa
Yup, that is why I just referenced the NEC article and let him take away whatever was useful to him. It is all I know about it wink


Greg Fretwell

#195850 - 08/25/10 07:33 PM Re: Industrial Control Panels - Installation [Re: gfretwell]  
djk  Offline
Member
Joined: Dec 2002
Posts: 1,237
Ireland
While I'm not familiar with Italian electrical regulations and I don't think we have any Italian experts on these boards, I would strongly suspect that it does require certification.

In most countries there are far tougher regulations applied to anything that is designated as a "work place" than than would be applicable to DIY work that you carry out in your own home.

I would strongly suggest that you seek local advice in Italy as you could walk yourself into a whole lot of legal and insurance issues if you don't carry out work in any work/office/industrial environment in accordance with local regulations.


#196624 - 10/17/10 07:18 AM Re: Industrial Control Panels - Installation [Re: michelebacocchia]  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,223
SI,New Zealand
Originally Posted by michelebacocchia

Is it possible to install some panelboards in a control cabin, in my case is a mobile office?


By mobile office, I take it you mean a pre-fabricated building, made out of aluminium sheets filled with polystyrene foam, commonly known as "sandwich panel"?

Quote
Does the mobile office must have some certificates to install the panelboards inside it?


As long as the panels are installed in accordance with the manufacturers specifications, I don't really see a problem.
I say this this with one reservation,it is VERY difficult to give advice over the internet, considering I can't see what you are talking about and the description is fractous at best.
I urge you to talk to a local Inspector or your local equivalent.






#203486 - 10/02/11 10:30 PM Re: Industrial Control Panels - Installation [Re: michelebacocchia]  
mikethebull  Offline
Member
Joined: Mar 2007
Posts: 100
Rhode Island
I know when I worked a big job in Massachusetts in 98. Part of the temporary service was a "job trailer" with 300 KVA XFMR in it to bring power to the jobs temp panels.


#205848 - 04/11/12 04:00 AM Re: Industrial Control Panels - Installation [Re: michelebacocchia]  
paul_deelen  Offline
New Member
Joined: Apr 2012
Posts: 2
netherlands
main concern here is grounding and accessibility.


Paul Deelen
phone +31736139136
shooter@home.nl
skype to paul.deelen

#205860 - 04/11/12 11:43 PM Re: Industrial Control Panels - Installation [Re: michelebacocchia]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,872
Brick, NJ USA
Hey Paul:
Welcome to ECN forums from one of the 'Jersey Guys'!!
Jump in any of the topics as you wish!!


John


Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.027s Queries: 15 (0.005s) Memory: 0.8141 MB (Peak: 0.9975 MB) Zlib enabled. Server Time: 2017-10-19 16:18:16 UTC