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
230 or 345 kV transmission lines?
by Vlado
09/24/16 09:33 AM
breaker meltdown
by crselectric
09/24/16 12:42 AM
Electrical mast flashing product
by ThomasWinfrey
09/22/16 12:14 AM
What estimating software do you recommend?
by sparky
09/21/16 07:20 PM
"Dry Run" Inspection goes awry
by HotLine1
09/20/16 07:39 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
HotLine1 14
sparky 9
sparky66wv 8
gfretwell 8
Vlado 6
Who's Online
0 registered (), 290 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Page 1 of 3 1 2 3 >
Topic Options
Rate This Topic
#201558 - 06/09/11 10:57 AM Over voltage level at night for Street lights
zng Offline
New Member

Registered: 02/07/11
Posts: 4
Loc: Miami, fl
Hi all,
I have a product to regulate the voltage that feeds streetlights of mercury vapour and high preasure sodium. I need to know what is the overvoltage level on the street lights at night to calculate energy savings when power is regulated. In other countries power is not stable at all, how is it in USA?

if the street lights circuit is 240VAC will it go to 250, 260 or at what level during the night?

same for 277VAC and 480VAC.

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....

#201559 - 06/09/11 11:48 AM Re: Over voltage level at night for Street lights [Re: zng]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6785
Loc: Brick, NJ USA
Most streetlighting here is utility owned & maintained, and not within the realms of electrical contractors.

You indicate your location as Miami, Florida, so based on this...why do you ask "how is it in USA?"

Please re-read the regulations of this forum!!
_________________________
John

Top
#201560 - 06/09/11 12:48 PM Re: Over voltage level at night for Street lights [Re: zng]
renosteinke Offline
Cat Servant
Member

Registered: 01/22/05
Posts: 5299
Loc: Blue Collar Country
Our power is the best in the world ... and we're getting rid of those obsolete lights as fast as we can.

Top
#201564 - 06/09/11 07:08 PM Re: Over voltage level at night for Street lights [Re: zng]
wa2ise Offline
Member

Registered: 11/29/02
Posts: 769
Loc: Oradell NJ USA
Zng, this really isn't the right forum for your question, but as a courtesy I can give you some numbers. ECN is for electricians who do and to discuss electrical work for homes, factories, offices and other private users of electricity.

Most streetlights are maintained by the power companies for the towns they are in. Most operate on 120V. Our voltages are will regulated, usually from 117 to 125VAC. The specification for service says 110V to 125V. Though rarely I've seen 132V (not because of a bad neutral, but because of a power company error), (it can't get much higher than that, as the power company transformers' cores would go into saturation) and as low as 105V (hot summer day, when the power company is trying to avoid a blackout but is losing the battle). Oh, sometimes lightning will hit a line, but you should see the same sort of event in your home country.

Top
#201568 - 06/10/11 06:07 AM Re: Over voltage level at night for Street lights [Re: zng]
Alan Belson Offline
Member

Registered: 03/23/05
Posts: 1801
Loc: Mayenne N. France
I believe we discussed this subject several years back- don't pocos try and maintain nominal volts @ ± 4%?
_________________________
Wood work but can't!

Top
#201589 - 06/10/11 09:19 PM Re: Over voltage level at night for Street lights [Re: HotLine1]
mbhydro Offline
Member

Registered: 02/21/03
Posts: 340
Loc: Winnipeg MB Canada
Originally Posted By: HotLine1
Most streetlighting here is utility owned & maintained, and not within the realms of electrical contractors.

You indicate your location as Miami, Florida, so based on this...why do you ask "how is it in USA?"

Please re-read the regulations of this forum!!




sort of stupid question but is there any difference from a HPS fixture installed by an electrical contractor in a store parking lot from one installed on the street next to the store by the utility.?

Top
#201591 - 06/11/11 06:48 AM Re: Over voltage level at night for Street lights [Re: zng]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6785
Loc: Brick, NJ USA
mb:

Most ECs here don't touch POCO owned street lighting. Some 'Private' communities have HOA owned road lighting, which are the same as other site lights. The POCO is even installing site lighting on private property (shopping centers), with flat rate pricing including power, maintenance and replacement as required.

We came upon some utility owned site lighting (retail center) that was HPS, 1000 watt with a unusual dual element bulb. I don't know anything other than the bulb info.

A new management company took over the site, called me for lighting maintenance. My crew arrived at the site (1st & last time), located the "downed pole", secures & safe off. I arrived shortly after, drove around the center, saw what I know as POCO wattage code stickers on the pole heads. I called the POCO contact, gave him the info, & we left. Needless to say....first & last trip.
_________________________
John

Top
#201592 - 06/11/11 10:02 AM Re: Over voltage level at night for Street lights [Re: zng]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9012
Loc: Estero,Fl,usa
I am not even sure most HOAs own their street lights. At my wife's places (3 gated communities in all), the PoCo installs and maintains the street lights because they are in the utility easement even though the street itself is privately owned and maintained.
They do have privately owned lights in the parking lots and other common areas.
_________________________
Greg Fretwell

Top
#201594 - 06/12/11 12:51 AM Re: Over voltage level at night for Street lights [Re: gfretwell]
frenchelectrican Offline

Member

Registered: 02/06/03
Posts: 938
Loc: Wi/ Paris France { France for ...
Originally Posted By: gfretwell
I am not even sure most HOAs own their street lights. At my wife's places (3 gated communities in all), the PoCo installs and maintains the street lights because they are in the utility easement even though the street itself is privately owned and maintained.
They do have privately owned lights in the parking lots and other common areas.


Gregg.,

I have ran into couple HOA area and it was sorta like grey area all it depending on the layout and the POCO R.O.W { right of way } easément ways but for privited own parking lots the small one genrally privite owned unless got a contract with POCO for larger one it will useally be privite owned unless the HOA have contract with POCO.

But one thing the POCO will not install any type of luminaire to the customer building that is a no-no in most case.


Merci,
Marc
_________________________
Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


Top
#201595 - 06/12/11 12:57 AM Re: Over voltage level at night for Street lights [Re: frenchelectrican]
frenchelectrican Offline

Member

Registered: 02/06/03
Posts: 938
Loc: Wi/ Paris France { France for ...
John { hotline }.,

I know what you are talking about dual tube 1000 W HPS they are very expensive son of gunner .,, the last bulb I did buy last year it was over 150 Euros

They are rated for 140,000 lumens and bulb life is about 44,000 hours { for dual arc tube the single is typically 24,000 hours }

Merci,
Marc
_________________________
Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


Top
Page 1 of 3 1 2 3 >



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