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
Industrail Control Panel bonding per 409.108
by sparkyinak
Yesterday at 03:17 PM
Calling all Non-US members!! (Non-US only)
by aussie240
12/07/16 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
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
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 8
Trumpy 6
Who's Online
0 registered (), 202 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#69758 - 09/18/06 09:43 AM R.V. Parks Calculations
Yoopersup Offline
Member

Registered: 03/04/03
Posts: 826
Loc: Michigan
Looking at a R.V. park voltage drops on distances so great. Ideas???. 35 sites two 50 ampers then rest 30-20 amp aprox 100ft to ist then 80 ft between each & two rows.
Makes for some long runs
9600x2=19200 plus 3600 x 33=138000
138000 x 42%(table 551.73)=57960 divided by 240=241.5 amps.
for service calculations .
each row I take it also by 551.73

Pnl ---------------------------------------
----------------------------------------
around 1400 ft each row
additional rows i know would help.
lugs at most good fer 250mcm '
more rows possibly needed
anyone run into this before?

Yoopers

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#69759 - 09/18/06 11:53 AM Re: R.V. Parks Calculations
LarryC Offline
Member

Registered: 07/05/04
Posts: 776
Loc: Winchester, NH, US
Can you move the main distribution to the center of the rows? That way you would have 4 shorter runs instead of 2 long runs.

Larry

Top
#69760 - 09/18/06 12:55 PM Re: R.V. Parks Calculations
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
That is what they try to do in the parks here. They set transformers and maypole out to the lot runs. We found out the allowable calc is probably not going to be enough with these new land yachts.
They tend to use most of the 50a you give then when the AC is on
_________________________
Greg Fretwell

Top



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