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
Today at 03:17 PM
Calling all Non-US members!! (Non-US only)
by aussie240
Yesterday at 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 (), 185 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#161585 - 04/04/07 03:25 PM Demand Meter
cgw Offline
Member

Registered: 07/29/04
Posts: 133
Loc: Rochester NY
Can any one suggest an instrument I can use connected to a service (say for 1 month) to determine the electrical demand? This is specifically to comply with NEC 220.87(1)Exception. I was thinking of an E-mon Series 2000 but I think I would need more than one if I wanted to use it for both 240-1 and 208-3.

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....

#161611 - 04/05/07 04:22 AM Re: Demand Meter [Re: cgw]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
The E-mon requires a voltage reference, as do all meters that I am aware of.

There are KW/KWHr recorders available (buy or rent) that will do what is needed for 220-87 Exc.

This info is available here (NJ) from the utility companies. That info is acceptable for NEC compliance, and should be easy to obtain, IF the job you are involved in has utility power.

GE rental is a source for rental test equip; as are many others if you Google.

WW Grainger has recording test equip available if you want to go that route.

John
_________________________
John

Top
#161904 - 04/09/07 09:31 AM Re: Demand Meter [Re: HotLine1]
cgw Offline
Member

Registered: 07/29/04
Posts: 133
Loc: Rochester NY
9 out of 10 times I can just get the demand from the utility. Once in a while we need to add power to a sub-panelboard or transformer in a larger building or to a building without a demand meter (e.g. around here church buildings do not have demand meters).

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