Author Topic: DANGEROUS chinese stuff  (Read 9433 times)
Binarix128
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Re: DANGEROUS chinese stuff « Reply #15 on: June 13, 2020, 03:31:47 AM » Author: Binarix128
Not everything "just because", but everything where it provides some wanted function. Its quite a difference
For example, everithing that involves heat, like the hair dryer, fire proof snow, fire proof gloves and a long etc... But what about that asbestos baby suit. Quite nosense?

Asbestos was a very cheap material that you can put almost everywhere.
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Binarix128
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Re: DANGEROUS chinese stuff « Reply #16 on: June 13, 2020, 03:35:32 AM » Author: Binarix128
More likely Lead. I think crayons with Asbestos in them would quite suck at drawing with...
Asbestos in crayons was found as contamination, like with lead. I don't know if asbestos is cheaper than crayon wax, so they use it for increase the wax mass.
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Ash
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Re: DANGEROUS chinese stuff « Reply #17 on: June 13, 2020, 04:14:39 AM » Author: Ash
That baby suit shows right in the ad what functions it does. It explains well why it is made of asbestos

The necessity of a baby suit with such functionality are a separate question. The mention of violence in the ad represents the level of mental health of marketers of such suit....
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takemorepills
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Re: DANGEROUS chinese stuff « Reply #18 on: June 13, 2020, 10:17:35 AM » Author: takemorepills
There are 2 separate issues with "dangerous" stuff.
Issue 1 is that most things are dangerous, and you just don't realize it yet.
You guys keep bashing on asbestos, spreading false info, like that "baby suit" ad. That is a fake ad, come on, an asbestos baby suit so you can be careless whilst cooking? You can't tell that's a modern day joke?
Not one single one of us is safe from asbestos. It is EVERYWHERE. If you exercise near a roadway, you are exposed to a lot of asbestos. A few decades ago the auto industry tried to move away from asbestos, but found that when making clutch discs and brake pads, there was really no substitute for asbestos. I work on traffic signals, our traffic signals are covered in sparkly, greasy asbestos dust/grime from vehicles. It comes from brakes and clutches, in especially huge amounts from 18 wheelers, and if you ride a bicycle in these areas you are taking in far more asbestos than you realize.

Asbestos causes cancer because it breaks up into tiny particles that lodge into your lungs and fester for decades. Has anyone considered what other product does that also? Fiberglass? Go work on fiberglass without PPE for a year and see what happens to you. Fiberglass also breaks down and sits in your lungs! It is literally little fibers of glass that your body can't process. Some countries are finally moving away from fiberglass. Why did asbestos get called out, but we still have fiberglass? Follow the money. Some day, you will see, there will be a big "realization" that suddenly we all need to have fiberglass removed from our homes or we will die of cancer. It will make whatever insulation industry that replaces fiberglass very rich (probably a Chinese company) as people suddenly begin freaking out about fiberglass, that they lived with for 60+ years.

PEX plumbing, what the heck are people thinking? Every few years doctors and experts warn people about plastics. Then, people go and put PEX into their home because it is so darn cheap. Better not cook or drink with water from the faucet, because some day there will be a huge effort to get rid of PEX after the "experts" find some cancer causing chemical in plastic.

Fact is, if the "experts" look enough at most products, whatever country it comes from, they'll find something cancerous about it. It depends on what the media says which drives how paranoid we become.

The real problem is issue 2. China is a racist, authoritarian, totalitarian country that has become increasingly belligerent to the free West. Inside China is a dystopia where the people are puppets of government control. China wants to ruin the West (including USA). When we buy stuff from China, transfer jobs to China, transfer intellectual property to China, we all get a little closer to losing the freedoms we enjoy in whatever country we are in. I think it is an uncomfortable truth that most people would prefer to ignore as long as they can keep buying cheap stuff.
China is far more dangerous than "crayons" or "asbestos baby suits".
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Binarix128
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Re: DANGEROUS chinese stuff « Reply #19 on: June 13, 2020, 02:51:11 PM » Author: Binarix128
I didn't know that this asbestos baby suit was a modern joke, but if it was real, I'm not surprised.

China like to kill pleople, in dangerous, toxic and faulty products, but also the pleople that produces it. In chinese factories pleople are exposed to toxic materials and accidents. For example fluorescent tubes factories in China, the pleople that work in the factories gets mercury poisoned, in this documentary, at the moment 21:30 the conditions of the chinese factories and the pleople that works are showed.

But the factory conditions are just a little dot compared with all other behind, as you said before.
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Re: DANGEROUS chinese stuff « Reply #20 on: June 26, 2020, 09:58:42 PM » Author: MVMH_99
Thought you might like this one: 

A while back, I got a cheap Halloween flame lamp from Amazon (like the one you'd hang from a tree).

Anyways, it was garbage to begin with - the plug was so flimsy it wouldn't even retain in the outlet; merely brushing against the cord would cause the plug to fall out (no joke!)


Fast forward a while, and I decided to tear it apart since it was such a mess.  No joke, when I grabbed the power cord in the middle with both hands and yanked it (but not pulling on the plug or where it entered the lamp, however), it ripped right apart!  And yes!  The cord was designed (and did) carry 120V when energized, so it's insane to think it would rip apart that easily!  Talk about a fire and/or electric shock hazard!

The fact that some of these non-certified devices (by a company like UL or ETL) make their way into the U.S. for sale is unbelievable!  From that point forward, I've always ensured that any electrical decorative devices I purchase are certified by either UL or an equivalent laboratory.
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Re: DANGEROUS chinese stuff « Reply #21 on: June 26, 2020, 10:34:43 PM » Author: Binarix128
Here our ETL or UL equivalent is SEC, that certificates houses gas and electric instalations as well as electric and fuel based devices.

Yep, most christmas lights here are not certificated and quite dangerous. The christmas lights plugs are just crap and so tiny, so you can easily touch the prongs, spetially with nort american plugs. Also those dead light for sure have capacitive droppers, so if anyone touches a light with the wet hands is ready to let go. Xmas lights cords are so thin, that can easily set the house on fire if the light shorts, and the wire resistance of the thing wire will be high, so it can burn down without tripping the breaker.
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Re: DANGEROUS chinese stuff « Reply #22 on: June 27, 2020, 03:59:35 PM » Author: Ash
The biggest problem with Christmas lights is how easily they get damaged. Then some things can happen :

There may be a short in the circuit itself. Hopefully if there are atleast some lamps in series with the short, they will blow and open the circuit. (But they can explode in the process, shooting sparks at flammable stuff)

There may be a short from the wiring to something metallic they are hanged on - like gutters, ceiling grids. etc. And that may result in leakage currents which are not high enough to trip the breaker or even blow lamps (if it is not grounded), so a shock or fire hazard by remote arcing from the live object to something else

The latter problem is resolved by connecting the lights on an RCD protected circuit (which at least here, all circuits must be anyway), but...

 - Many old houses dont have RCD protection on some or all circuits

 - Many houses have Type AC RCDs, and many modern lights sets are either LED sets, or have some electronic flashing controller that feeds halfwave to the lamps. AC RCDs will only trip for one polarity of leakage current, so with such lights set there is 1/2 chance that they won't trip even in case of significant leakage...

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Binarix128
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Re: DANGEROUS chinese stuff « Reply #23 on: June 27, 2020, 06:57:33 PM » Author: Binarix128
My house have not RCD, so the fridge, the kettle, the rice cooker and the toaster are dead traps, and xmas lights can possible become one. The real problem with the xmas lights is that if it gets wet and anyone touches it, if not, nothing should happen since the all is insulated with plastic. If in my house the electric cord shorts out before reaching the driver circuit, my 10A breaker should pop, but in 30A or 50A breakers the current will not be enough for trip the breaker, but enough to melt down and catch fire.
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Re: DANGEROUS chinese stuff « Reply #24 on: June 28, 2020, 04:13:07 PM » Author: Ash
There are several layers of protection from shock :

1. First and most essential : The functional isolation of the appliance - Single isolated wires inside, the slot isolation of the motor (in the fridge), Mica isolation of heating elements, etc. This is the first working isolation (from the live parts towards outside)

2. For the situations where the first protection fails : The Earth connection (for appliances with Earth), or the second isolation layer (for appliances with double isolation)

3. For the situations where both protections fail at once (e.g. plastic appliance body broken and internal live parts are exposed) or are bypassed (e.g. appliance soaked in water) : The RCD, which will trip in case of leakage current



As long as it's about appliances with metal body, the Earthing can provide very significant safety even without the RCD. Depending on the fault, it will protect in one of 2 ways :

If the fault is directly from Phase to the appliance body, the Earth connection will conduct short circuit currents, and trip the breaker

If the fault is with limited current (for example, from some point along a heating element), the Earth connection will keep the appliance body at low voltage towards Earth, so it won't be live. If the fault eventually progresses into a dead short, it will trip the breaker

For the Earth connection to be able to provide both protections, the system must be correctly built :

1. The Earth connection resistance (from appliance body to the Neutral of the transformer) must be low enough to conduct high short circuit current

 - In newer houses (connected to a TN-system), Earth and Neutral are connected together at the point where the service enters the building, which allows to complete the short circuit through the power company Neutral

 - In older houses (connected to a TT-system), the only cicuit is closing through the Earth connection and actual Earth. For this to work correctly, the electrode providing the Earth (Earth rods, building foundation rebar, water pipes, etc) must be correctly connected to the Earth busbar in the panel and have significant and intact surface area connecting with the soil. This may not be the case in old houses where the electrodes corroded away, water pipes were replaced with plastic ones without bypassing the Earth connection, etc

2. The circuit protection (breaker) must be adequate for the capability of the Earth connection of the circuit, so in case of short circuit of Phase to Earth, the current will be sufficient to trip the breaker. So for example, not connecting receptacles (into which can be plugged appliance with 0.75mm2 wire) on 32A or 50A breaker. (In addition to the obvious missing overload protection)

This is why receptacles on which appliances (with 0.75mm2 wire) can be connected are protected by no more than 16A breaker. Although the 16A breaker is way too high to protect 0.75mm2 from overload, it is sufficient to protect it from immediate damage in case of short circuit. Then the protection from overload can be in the appliance itself (a fuse, or an appliance that inherently have no way of drawing continuous "limited" overcurrent in case of fault)


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Binarix128
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Re: DANGEROUS chinese stuff « Reply #25 on: June 28, 2020, 04:56:24 PM » Author: Binarix128
My house is a deadtrap because there's not RCD and there's not any kind of grounding, it is "floating". If the live fully shorts to the housing the breaker will not trip, because it will not detect any short. There are outlets in my house that have a ground wire, but connect with other plugs going nowhere, so if the live touches the ground, all the other appliances will become live too.  @-@
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Re: DANGEROUS chinese stuff « Reply #26 on: June 28, 2020, 04:59:10 PM » Author: Ash
Now this is a death trap. It must be sorted out immediately. (By using proper Earthing electrodes or objects capable of working as Earth electrodes, not by connecting Earth with Neutral !)
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Rommie
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Re: DANGEROUS chinese stuff « Reply #27 on: June 28, 2020, 04:59:53 PM » Author: Rommie
 :poof: You need a rewire top to bottom, NOW..!  :DeAtH:
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Binarix128
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Re: DANGEROUS chinese stuff « Reply #28 on: June 28, 2020, 05:24:34 PM » Author: Binarix128
:poof: You need a rewire top to bottom, NOW..!  :DeAtH:
I'm lucky that I'm writing this now and here... There is a probability that we move from our house after the current pandemic goes out, we will build our own house, and of course with a certified wiring, a grounding and all the wiring protections.
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Re: DANGEROUS chinese stuff « Reply #29 on: June 28, 2020, 05:25:44 PM » Author: Ash
And leave the death traps to the next owner ?
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