*sigh*
Okay, let's get this over with...
I have bought lamps with supplied bulbs one of which was not cheap,within a month all six had failed,not blown but just dead.
Talking to the retailer the bulbs supplied are "for demonstration purposes only",replaced them with quality bulbs and they have lasted for years so not all bulbs are the same.
Surprisingly though, I do agree on this one. Branded bulbs are generally speaking more reliable ... unfortunately, finding incandescent (non-halogen) 25W R39 turned out to be more challenging than I expected, because they are literally banned throughout EU. The guy at the store gave me a funny look when I asked him about R39s and asked me "why don't I just use the LED bulb, instead?" The closest I could get to the original was 30W R39 from Bellight (with frosted lens) which technically speaking does seem to work, except it's A - overpowered & B - ever so slightly taller than 25W counterpart, meaning that it's touching the bottle.
You'd think that company brands like Osram or General Electric would keep these for special purposes but nope! Meanwhile, the States is considering to lift the ban on incandescent bulbs & make them widely available for anyone who wishes (or needs) to buy one ... I saw an article on this subject the other day.
British Electrical Regulations are rather strict as the domestic voltage is 240v,the industrial regulations even more strict.Still far too many people are killed by electricity.
I was at a major blue chip owned factory in Serbia some years ago and 7 electricians had been killed a few months earlier due to a carbon flash over in the switch room.
Another guy I worked with saw a welder in Indian plug a portable 415v welding set into a socket and promptly died as the socket wasn't earthed.
Extreme cases.
As I am not familiar with your laws I cannot comment but I'm sure they match,exceed or are not too far behind the British standard so its a puzzle why you experience exploding light bulbs is it a common thing shared by friends and neighbours?
I have had electric toasters and kettles fail and the consumer unit instantly trips,it will not reinstate until the failed unit is unplugged.Does yours not do that?
In the industry I work in I have seen the aftermath of too many serious electrical and hydraulic failiures,(4 bar of escaped compressed water can blow a steel door off its hinges,seen it).Because of this I am very safety aware,possibly over the top.
I know, British electrical regulations are one of the most strict ones out there.
I'm not going to disclose my location for obvious reasons, but I /do/ live in EU & we use 220-240V AC. None of the plugs are polarized - as mentioned before, we are using German "schuko" for earthed connections & "Europlug" for non-earthed, double insulated devices which is the case with my lava lamp ... and all other tabletop lamps, for that matter.
While it's not a "common thing", blowing up the bulbs does seem to run in the family as my mom used to have the same "problem" ... even way back in the 80s and 90s, when the incandescent lighting was still a standard. Not sure why, but I DO know that we can rule out the bad wiring, fuse box, loose connections & other elements, since it happened on several different locations, several different apartments & houses. In fact, the most recent one (lava lamp) was the first encounter of explosive kind in this apartment, as I only just moved in last year.
The fact Mathmos v your purchase is irreverent,we can agree to disagree,what is of more concern to me is safety and if things were blowing up in my house I would try to address it.
Look, it doesn't happen all the time - obviously. Once or twice per year ... at most. It used to happen more often in the 90s when we had incandescent bulbs, but then I started blowing up other things in life (such as the power supply in my desktop PC & sensitive electronics) Guess you could say I moved on
By the way, that exploding PSU failed for no apparent reason ... other than old age, maybe. It was earthed, it didn't get wet, overloaded nor shorted. Just simply gave up one day.
Now a long shot.
Are you certain the bottle is fully sealed?As the fluid warms it will expand.
The very slightest of weeping could cause moisture to run down it into the bulb socket.
Yes, I'm absolutely sure. I performed a paper towel (tissue) test ... not to mention that I placed it back on top of the new bulb & is working fine. If it had been weeping, it would leave traces, if not blow up the replacement bulb.
This. Incandescent light bulbs blow up in the movies, not in real life any more than they clunk and go off sequentially down ominous corridors. Thermal shock from the liquid is much more likely. Case in point.
For the most (normal) people, maybe...
The two of you seem to be under the wrong impression, as the lamp did /not/ explode out of the blue, during the operation while the bottle (and bulb itself) were hot. No, it actually happened as the WiFi turned it on. Thus, the bottle (including its content) was cold, around 23, 24C at most. This is how I usually blow up my lamps, simply by toggling the switch.
30 years ago we used to heat boiling water in the microwave in a 4 cup Pyrex measuring cup. One time out of hundreds my wife takes it out and while under the overhead light fixture the water literally launched straight up exploding the candelabra bulbs. Without something in the cup to help form bubbles and dissipate energy it can build using MW radiation.
Bottle caps occasionally leak. According to millennialhomeowners.com, apparently a trusted source for all things retro appropriated by the snowflake generations, 8-10 hours is the maximum duration to enjoy one’s lava lamp.
According to the instruction manual, it says to use the lamp for 8-10 hours straight, but no more than 12hrs straight. Which is exactly what I did ... not that it makes much (or any, for that matter) difference, but once again the bottle does /not/ leak.
The breaker in question did not trip because there wasn’t overcurrent. Without a ground wire a GFI has nothing to detect. Take a breath, have a gummy, watch the pretty colors, put on some Strawberry Alarm Clock.
That is true.