BulbCollector Forums

BULB DISCUSSION BOARDS => Christmas Lighting => Topic started by: Christmas Lamp on October 13, 2012, 10:09:46 am

Title: I've just Changed...
Post by: Christmas Lamp on October 13, 2012, 10:09:46 am
The Lamps Out In The Light Set Thats up in The Hallway, from Lemon to Ivory.... Or as I Think Gold to Silver....
Its Quite Dark in There so I thought Why Heck Not......
Title: Re: I've just Changed...
Post by: Christmas Lamp on October 14, 2012, 10:45:57 am
Ivory/Silver
http://www.nomadirect.co.uk/990344qi

I Have Mixed Them With About Everything Like
Ocean Blue
http://www.nomadirect.co.uk/990344qb 
Lime
http://www.nomadirect.co.uk/990344qg
And So on....
Title: Re: I've just Changed...
Post by: Christmas Lamp on October 15, 2012, 07:29:50 am
Close up of Silver Lamp.....
Title: Re: I've just Changed...
Post by: Justin on October 21, 2012, 06:14:10 pm
What's a fuse lamp?
Title: Re: I've just Changed...
Post by: adam2 on October 22, 2012, 07:47:12 am
What's a fuse lamp?

It is a requirement in most modern series wired lighting sets.
Most lmodern series wired lights use permanent contact bulbs, these are designed to fail short circuit at end of life in order that the remaining lamps in a series chain will remain lit.

Unfortunatly, the failure of several permanent contact lamps leads to rapid failure of the rest, and a virtual short circuit with risk of fire.

Therefore in many countries it is a requirement that series wired lighting sets with permanent contact lamps incorporate a fuse bulb. This is of a slightly lower current than the others and does NOT have a permanent contact device.
Any excess current will therefore blow this lamp and cut off the current before any serious harm is done.
The fuse lamp should be identified by having an opaque white tip, and if screw based by having a nickel plated base rather than brass.

A failed fuse lamp should only be replaced with a similar one.
If a permanent contact lamp is used instead of the fuse lamp, then the set will still work but be less safe. I would not worry for a brief test, but for long term or unattended use, no way.

Older series wired lighting sets did not use fuse lamps and the therefore the failure of any lamp put the whole string out. No big deal with say 8 or 12 lamps, but a problem with a long string.

In Canada and the USA , many lighting sets use line voltage lamps, not series connections.
Title: Re: I've just Changed...
Post by: Justin on November 03, 2012, 01:01:14 am
Our series-wired strings still don't use fuse lamps.
Title: Re: I've just Changed...
Post by: adam2 on November 06, 2012, 04:05:09 am
Our series-wired strings still don't use fuse lamps.

That seems a bit suprising, are you certain ?
Even if not a requirement in your country, it is a requirement elswhere, and I would expect that it would be simpler to make all series wired sets the same rather than to make two versions.
Title: Re: I've just Changed...
Post by: Christmas Lamp on November 06, 2012, 05:23:23 am
Englsh Fuse Lamps
Title: Re: I've just Changed...
Post by: Hemingray on November 06, 2012, 07:21:06 am
Our series-wired strings still don't use fuse lamps.

That seems a bit suprising, are you certain ?
Even if not a requirement in your country, it is a requirement elswhere, and I would expect that it would be simpler to make all series wired sets the same rather than to make two versions.

Nope, in the US, the fusing is done in the plug. The only time I ever seen fuse lamps was in a 1970s string of GE merry midgets.
Title: Re: I've just Changed...
Post by: Christmas Lamp on February 07, 2013, 12:59:30 pm
Am Thinking of Changeing Again..... Not Sure to What Yet...
Title: Re: I've just Changed...
Post by: Christmas Lamp on February 09, 2013, 09:53:59 am
I Have, My Set Now has....
Ocean
http://www.nomadirect.co.uk/990344qb
and
Ivory Bulbs
http://www.nomadirect.co.uk/990344qi