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 10
Texas_Ranger 8
Trumpy 8
sparkyinak 7
Who's Online
1 registered (LongRunner), 90 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#142033 - 11/29/04 04:16 PM Paul, you live out in the sticks...bulbs...
uksparky Offline
Member

Registered: 07/06/04
Posts: 199
Loc: UK
Are you plagued by constantly blowing lamps?

We go through shed-loads of the damn things! They are branded lamps ( currently a box of Osram ) but seem to last sometimes only days.

Do you have this problem? Or anyone else for that matter...
_________________________
If hindsight were foresight, we'd all be millionaires!

Top
Test Equipment:

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

#142034 - 11/29/04 08:47 PM Re: Paul, you live out in the sticks...bulbs...
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Uksparky,
You'd be amazed how many times I've been asked this question by customers, when I was an EC and I still get asked during Faults calls.
Pretty much what causes the problem, is either over-voltage, vibration or voltage spikes causing the filament to weaken or break as the case may be.
Personally, I'd install a Surge Diverter unit on the switchboard if I were you.
I had the same problem here (and I'm in town) and I fitted the Surge Diverter and I've only replaced a couple of bulbs in the last year.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#142035 - 11/29/04 11:58 PM Re: Paul, you live out in the sticks...bulbs...
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Bulbs seem to last about the same here as most places, so I certainly wouldn't say it's a problem.

As I've mentioned before though, for a rural area at the far end of the distribution network the supply here is pretty stable, and over-voltage (by more than a couple of volts) is rare.

I've never had anything hooked up to monitor the other aspects of power quality here, but I'd bet that transients, switching surges, etc. are also pretty minimal. The sub-station feeding the 240/415 network on my estate has only domestic loads, and there's no heavy industry on the 11kV grid in the immediate area.

Top
#142036 - 11/30/04 01:13 AM Re: Paul, you live out in the sticks...bulbs...
32VAC Offline
Member

Registered: 06/28/04
Posts: 203
Loc: Alice Springs, NT, Australia
I had the same problem with blowing globes on a regular basis (2-3 a week). The problem was solved by tightening the screws in the switchboard for both the active & neutrals for all the circuits in the board (the nuetral for the lights was two turns loose) & replacing the 240 volt globes with 260 volt OSRAM 'rough service' globes. Result: up to 6 months before a single globe had to be changed.

Top
#142037 - 11/30/04 07:02 AM Re: Paul, you live out in the sticks...bulbs...
SvenNYC Offline
Member

Registered: 08/19/02
Posts: 1685
Loc: New York City
Replacing the bulbs you currently use with higher-voltage rated ones seems to be a common solution.

At home I use 130-volt "long life" bulbs that are brought in from China. My house current is at 118-119 volts and one of those bulbs may last me about a year.

And since I buy them at the bulbs at the dollar-stores ($1 for a pack of 4), I come out ahead.

The filaments of these Chinese bulbs are also better supported (five points of support) than the ubiquitous General Electric bulbs where the filament is only supported at the two lead-in ends.

A 75-watt GE bulb only lasts 750 hours (think it's a 110 volt bulb marked 120 volts?) while the Chinese version may be marked as 120 or 130 volts and it's touted as lasting 1,000 or 5,000 hours (depending on the voltage it's put across).

I've noticed some grocery stores selling 110-volt rated bulbs. They may be brighter, but they don't last as long.

Top
#142038 - 11/30/04 09:38 AM Re: Paul, you live out in the sticks...bulbs...
marcspages Offline
Member

Registered: 10/15/04
Posts: 49
Loc: London, UK
UKSparky,



As can be seen, volts is 'pushed' up as a general rule - have many friends cry because of high bulb costs.

http://www.marcspages.co.uk/pq/?6620 was cure given to a few (now, I am more than aware that a lot will frown at this solution - but it works!).

M.

Top
#142039 - 11/30/04 04:45 PM Re: Paul, you live out in the sticks...bulbs...
uksparky Offline
Member

Registered: 07/06/04
Posts: 199
Loc: UK
Thanks guys.

I rewired the house completely four years ago, and I have rechecked varuous terminals etc in the hopes I might find an easy cure No such luck.

I would use 'low-energy' lamps - but I hate the colour-rendering as well as the appearance.

I suspect I need to set up the V-logger and see what goes on, then perhaps look at cleaning up the supply. Fortunately, if this is the case, the PC is as yet unaffected ...now there's a small miracle!

Cheers again.
_________________________
If hindsight were foresight, we'd all be millionaires!

Top
#142040 - 12/01/04 12:03 PM Re: Paul, you live out in the sticks...bulbs...
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Hi Sven!,
 Quote:
I've noticed some grocery stores selling 110-volt rated bulbs. They may be brighter, but they don't last as long.

Yes we have the "budget" light bulbs here too, something like 30c each.
uksparky,
 Quote:
I would use 'low-energy' lamps - but I hate the colour-rendering as well as the appearance

I agree with you, however, in my office here, where my computer is, I use a fitting I made up from a 13W ballast and 2 9W PL-S (Colour 840) lamps and the difference in the colour between that and the normal room lights, is quite remarkable.
With 18W of fluorescent lamps, I can easily light this room up and to a certain degree it's a bit kinder on the eyes, when looking at this monitor.
Just while we're talking about light bulbs,
do you guys have the compact incandescent bulbs?.
Same wattage lamps, but with a smaller glass envelope.
I saw some at the local wholesaler yesterday, they looked really strange!.

{Sorry about the thread-jack, uksparky}
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#142041 - 12/01/04 04:11 PM Re: Paul, you live out in the sticks...bulbs...
uksparky Offline
Member

Registered: 07/06/04
Posts: 199
Loc: UK
 Quote:
do you guys have the compact incandescent bulbs?.
Same wattage lamps, but with a smaller glass envelope.
I saw some at the local wholesaler yesterday, they looked really strange!.


Oh we have all kinds of bizarre things! Mushroom, pygmy, golf-ball, candle... All available with ES, SES, BC, SBC. Our GLS lamps are generally all a standard size, with slightly larger envelopes for 150W versions. All the above weirdos are available from 25 to 60W, mushroom up to 100W.

{Sorry about the thread-jack, uksparky}

Well hell...no probs!
_________________________
If hindsight were foresight, we'd all be millionaires!

Top
#142042 - 12/02/04 12:52 PM Re: Paul, you live out in the sticks...bulbs...
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Some bulb types seem to go in and out of fashion. Looking back, I seem to recall mushroom-shaped bulbs being quite popular when I was a kid, now you don't seem to see them used anything like as often.

Here's a good selection of bulbs:
http://www.tlc-direct.co.uk/Main_Index/Lighting_Menu_Index/Lamps_and_Tubes_Index/index.html

Top
Page 1 of 2 1 2 >



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