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
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
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 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
Trumpy 8
sparkyinak 7
Who's Online
0 registered (), 99 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#20696 - 01/19/03 04:05 AM Schedule for on load trial
amandaamisha Offline
Member

Registered: 12/09/02
Posts: 16
Loc: safat,kuwait,kuwait
Dear Friends,
Can somebody throw light on the following.

For Standby (Emergency) Diesel engine set and ATS , is their any compulsory time schedule like weekly , monthly etc for load test to keep it 'work" worthy or is it just a matter of one's convenience ??
We have at our site CATERPILLAR make genset of capacities ranging between 250 to 2000 KVA.,for which normally we do a weekly trial run without load for about 5 to 10 minutes( not thro ATS).

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....

#20697 - 01/19/03 05:32 AM Re: Schedule for on load trial
maintenanceguy Offline
Member

Registered: 12/02/01
Posts: 303
Loc: Southern NJ, USA
For helthcare facilities in most states, running tests are required weekly and load tests are required monthly.

I believe this is from one title of the NFPA but I don't know where. Monday, I'll try to find the reference.

I don't know about any other industry.

Top
#20698 - 01/19/03 07:25 AM Re: Schedule for on load trial
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
As maintenanceguy said you may have specific requirments.

Other then that I would suggest you talk to a Cat service guy.

IMHO 5 to 10 minutes is not enough to even reach running temp.

I would be thinking weekly 10 to 15 minutes after hitting the normal operating temp. this forces any water condinsation out of the oil.

Do you have a service contract on these units?

We install many gen sets and when the tech comes out to do the start up they always set the exersise clock for weekly but I do not remember the lenth of run time.

Bob

[This message has been edited by iwire (edited 01-19-2003).]
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

Top
#20699 - 01/19/03 08:23 AM Re: Schedule for on load trial
ThinkGood Offline
Member

Registered: 08/07/02
Posts: 1084
Loc: Milwaukee, WI
Maybe http://www.cat.com/ can give you the closest contact person?

Top
#20700 - 01/19/03 11:32 AM Re: Schedule for on load trial
Ron Offline
Member

Registered: 03/13/02
Posts: 577
Loc: White Plains, NY
Is the gen arranged for compliance with Article 700, 701 or 702? The requirmeents will be different.
_________________________
Ron

Top
#20701 - 01/19/03 12:13 PM Re: Schedule for on load trial
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Ron,
All I find is 700.4 (B) and 701.5 (B)
tested in a manner acceptable to the AHJ, nothing in 702

I would think following the makers recommendations would be in a manner acceptable to the AHJ.

Is there something I am missing?
Bob
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

Top
#20702 - 01/19/03 12:25 PM Re: Schedule for on load trial
Ron Offline
Member

Registered: 03/13/02
Posts: 577
Loc: White Plains, NY
Most AHJ's enforce NFPA 110. Article 700 and 701 are considered Level 1, and 702 is Level 2. Hospitals are also special.
NFPA 110, Chapter 8 goes through the routine maintenance for the two levels.
_________________________
Ron

Top
#20703 - 01/19/03 12:27 PM Re: Schedule for on load trial
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Ok,
I missed a FPN to go NFPA 110-1999
Standards for Emergency and Standby Power Systems.

I should look harder before I post.


Bob

[This message has been edited by iwire (edited 01-19-2003).]
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

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