These circuit breakers from Prague are definitely worth .....Czeching out.....

@Stop..carry-on

3 жыл бұрын

😆 very good

@ifyougetstucklookitup237

3 жыл бұрын

Definitely a "dad joke"!

And I thought this was going to be crazy footage of JW's stag do in Prague in 1983.

The magnetic trip mechanism also has an adjustment screw seen in the bottom right corner at 11:10 and accessible via a hole which is hidden under the label.

Another lovely video. Thanks John.

Rather well designed for their age. Most installations here in AUS were still using rewireable fuses at the time. Or the dreaded plug in CBs that home owners could pop over an existing ceramic fuse - often with one of an inappropriate rating.

@rowdoradge

3 жыл бұрын

Which I still see in a lot of installations. Found a 32A on a power circuit less than a month ago

Cool . That was an interesting item to play with . Thank you John for another great video 👍

thankyou Mr Ward....

They look much more robust than many of today’s offerings!

Great video very interesting thanks

They are made by Weber. They were also used in hungary, that's why I know.

@mernok2001

3 жыл бұрын

We also had Bakony Művek in Hungary making quite good circuit breakers.Many of them are still in service.

@czonczike630

3 жыл бұрын

@@mernok2001 Tudom jól. Úgy törtek mint az állat, de az biztos, hogy időben kioldtak. Rohadt érzékenyek. Még régen olyan volt nekem az óránál 2db 10-es. Amikor bekapcsoltam a 3x10A-os indukciós főzőlapot, akkor mindkettőt kib*szta.

@mernok2001

3 жыл бұрын

@@czonczike630 Nekem nem tűntek törékenynek.Még van az új típusuból is a gyűjteményemben,amin már papír helyett nyomtatott felirat van és 230/400V tehát 1995 utáni lehet.

@czonczike630

3 жыл бұрын

@@mernok2001 nekem a papíros fajták vannak 1983 ból, de azok törnek, mint az ítélet.

@czonczike630

3 жыл бұрын

Amikor kicsavartam őket, akkor mindig ahogy lazítottam, akkor eltörtek. Főleg falukban. A manáéknél még mindig olyan van 6 amperosba. Egy hete nála voltam, mert összehívtuk egyet a családot, ő meg fölment porszívózni, azt mikor bekapcsolta, szokásosan kib.....ta, lement fölkapcsulni, de látta hogy el volt törve. Tehát olyan szinten oldott ki, hogy belerepedt. Amennyire hülyén hangzik, így volt. Na mondom fasza. Azt cserélhettem ki. Futottan haza hoztam egy vadi új bakonyit dobozban, sajnos csak 6 amperosat, mert oda más nem lehet, azt ki kellet cserélnem.

The cable attached to the switch looks interesting. It appeared to be aluminium.

They actually look almost the same as the Siemens ones from the early 80s.

Hello Mr. Ward. Your videos are very usefull and clearly structured. Can you please adress 2 topics? First: measuring devices, what festures to look for in a ZE measuring device (for a beginner), insulating resistance tester and for a RCCB / BO tester. Second: differences between types of RCCB / RCBO devices (A, AC and other types). If i missed your videos on the topics above, sorry!

Interesting, that water resistant switch seems to have solid conductor aluminum branch circuit wiring. I thought that was only here in Canada... but I won't say any more, because I know JW has more videos to come. ;)

Ah JW remembers Prague 1983... Oh didn't we have fun with the circuit breaker shinanigans.... Another good video me ol mate

Is the coiled copper strip (rather than wire) on the electromagnetic in order to handle the high current, or is it just cheaper to make that way?

@dd313car

3 жыл бұрын

Its a very flexible wire which is needed there bcause of the movement of the mechanism. You can't use solid or normal flex core it wold be too stiff.

You should try to get your hands on old heinemann circuit breakers from south africa they are from the 1970s

I don't get notify when you upload video

Good

John how would you test the earth bonding continuity if you don’t have a wandering lead?

@westinthewest

3 жыл бұрын

Use a length of twin and earth or any other cable you have in the van.

Question about the tripping mechanism: do these trip even if the black lever is held in the "on" position?

@dd313car

3 жыл бұрын

YES, they do and all other also, it's a safety requirement

Could they be Weidmüller CB's? just a guess. Interesting to see anyway.

look a bit like Wylex HB mcb's

Mr. Ward, I have a question. Why are toasters legal? I mean they are IP10 devices that are just... everywhere. Does every consumer-reachable electric installation and device must be more than that (except toasters?)

@Seiskid

3 жыл бұрын

Grandfather clause. The design pre-dates modern regulations. Same as the traditional light bulb socket. No way that would get approved today but both are an established design used all around the world and it's just too hard to eliminate. Even as a child most people are quickly taught not to stick your fingers in either. And in more recent times RCDs have helped mitigate the risk with both. The other big issue with the toaster is even after 120 years no one has managed to invent a safer replacement machine that's any good at cooking toast.

@tarassu

3 жыл бұрын

@@Seiskid Mitsubishi created a better toaster.

@Mark1024MAK

2 жыл бұрын

@nick Ellingham - not out of reach if it is a table lamp or bedside light… And both BC styles and ES styles are just as bad… Now there are alternatives, like GU10 and similar which are a bit better.

@mfbfreak

2 жыл бұрын

Good question. There is no reason why they couldn't put a grounded steel mesh screen between the heating element and the 'cage' that holds the bread. That way, you can't poke the heating element with a knife anymore, and the tines of a fork would be contacting the grounded mesh and tripping the GFCI instantly.

@okaro6595

2 жыл бұрын

Toasters are connected only when the tray is down. I do not get why anyone would stick something there.

Circuit breakers in Prague 1983... That's definitely caused by JW circuit breakers England 2021... Caused by Johnson and Covid19

@LakeNipissing

3 жыл бұрын

Really? They are using that _'exact'_ term in the UK as well, like here in Canada regarding snap lockdowns? Hmm. Things seem to be too orchestrated planet-wide. I thought it was odd how many country leaders are _simultaneously_ using the slogan "Build Back Better".

@Xclub40X

3 жыл бұрын

@@LakeNipissing great reset maybe....