Пікірлер

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  @angelofranklin1Ай бұрын

  The reason this is discussed more is because there are far more cable failures occurring without people knowing that the current is being diverted through their premises via either gas or water pipes or both to earth and back to the star point of the TX. The problem with repair in the street is the cost, these are all privatized companies that want to make profit and don’t want to spend the money. It is less costly and easier to change TNS to TNCS.

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  @sasonjacob15842 ай бұрын

  Great explanation. Except the using of term electromagnetic field in the core, there is a flux made by the two coil when everything is OK, the equal flux is zero when you have a fault the flax equal is not zero, causing EMF on the third coil that connect to electromagnet that trip the circuit

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  @technicalraja-ld2mp2 ай бұрын

  Super sir Ji 😊

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  @peterroyce34873 ай бұрын

  Whats the polices problem? If people don't want to get shocked, don't touch the van. Its that simple. This man is to be made a hero. And this technology should be made available for all vans, cars and homes. Time for the police to stop protecting thieves, its the individuals choice to thieve, stop protecting them.

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  @Grahammundy3 ай бұрын

  I've been manufacture and installing security gates into any size van. I've got footage of people breaking into on a drive. All my gates can be removed and installed into next van and less than half the price of this and my gates are being tested by Thatcham in April. It will be police and insurance approved

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  @gamehack63594 ай бұрын

  Can't believe I haven't found this before today, for years I have been banging on about DC blinding RCDs.

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  @philipoakley54984 ай бұрын

  I can feel the tingling even just watching! The closed caption (CC) auto-translated to German, until I re-selected English. Still need the volume on low to capture nuances line 'Ohms' for cases when the auto-translate got caught out. Useful summary at the end. And don't bathe in salt (ionic) water..

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  @bigglestornado38825 ай бұрын

  The law is an ar se. You protect your possessions against theft and YOU are the criminal!! it should be that if a theif tries to break into your van, and gets injured - tough luck. The answer is to not theive!

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  @johnnyambi5506 ай бұрын

  Why can't we combine voltage operated elcb with rcd in that voelcb takes care of ground earth fault and rcb takes care of small leakages.

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  @harrymakongwa11477 ай бұрын

  We need this on house doors 🚪

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  @jamesmacleod67547 ай бұрын

  Good talk guys, thanks. I am currently doggy paddling my way through the machinery directive, any decent guidance or better yet a course you guys are aware of?

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  @PardoeElectrical7 ай бұрын

  Jeeezzzz

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  @tombickerton59097 ай бұрын

  Excellent video , I really enjoyed it 😊

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  @Chatterisdotbiz7 ай бұрын

  I was waiting for Chumly Warner to do a piece to camera 😊

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  @three-phase5627 ай бұрын

  A blast from the past, very informative. Thanks for sharing this, I have seen the arc protection system videos but not this one on test probes.

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  @SuperMacandme7 ай бұрын

  Are you still making these ?

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  @mathman01018 ай бұрын

  Lump in my throat when you said a good friend of mine…

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  @mathman01018 ай бұрын

  Next talk ungrounded or unearthed systems the where and why- think operating rooms…..

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  @mathman01018 ай бұрын

  Great press. We should get rid of the expression electrical currents tend to take the path of least resistance. Electricity take all and any paths to make its way back to the source. Clearly in the person example you showed with the kettle there could have been small current diverted both in conductive and non conductive mediums metal, wood plastics and not just the individual, in many cases people wearing certain clothes, footwear or the way they are exposed to electrical currents may either help or put in danger their lives. Clearly their resistance or impedance will reflect various factors from the nature of the material and environmental factors as well humidity, temperature etc. Of course you try to then correctly highlight the need for equipotential bonding to address these multiple paths. This all any any paths is much more clear in a situation of a lightning strike on a home where the entirety of the house and any and all its material will become live with that level of very high voltage many of those materials then heat up to catch fire or even explode.

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  @SajidHussain-oh7wz8 ай бұрын

  Amazing. You should copyright and retail it once its legal.

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  @pnxelectrical8 ай бұрын

  Webinar, certainly interesting to hear how systems differ over there, already in my head I've got Paul Meenan thrashing out a street fighter style video putting BS7671 against its international cousins.....which is a Flawless Victory? Which has the most Fatalities? Only one way to find out........beg and plead for it to happen 😂 🙏🙏🙏🙏🙏

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  @philipoakley54988 ай бұрын

  Leakage currents (~1:08:00) can come from the all the radio frequency filters for Electromagnetic Compatibility (EMC). The typical value in modern electronic filters (consumer equipment) is limited to 1.6mA per filter, but larger industrial equipment can have much larger filter leakage. Typically the EMC idea is that both the line and neutral wire can act as aerials at RF, so if we (at RF) create anti-phase RF signals in those wires, relative to earth, then the emissions will cancel. To create that RF balance the 'Y' capacitor is used, and the RF half supply voltage is isolated from the supply by the line inductors within the RFI/EMC filter. Therefore the key leakage is via one side of the Y capacitor at line voltage, and tail of the Y at earth connection. These leakages are separate from the mesh flows within the neutral-earth network impedances (e.g. the diverted neutral currents DNC). In terms of a 'clean earth' (from an electronics/RF/EMC perspective) it's normally the separation of the protective earths that connect to 'noisy' equipment, from those that connect to the sensitive equipment, such that they come together nearer the power return point, and avoid cross bonding that would run some of the high power earth return 'noise' through the clean earth wiring. It all sound very reasonable until one starts considering the local capacitance between the separated earths, which at the RF frequencies then provide a significant conduction path through their Xc @rf. Cue, lots of arguments and opinions... ~1:47:00 Paul's comment regarding Lightening bonding on the roof injecting the lightening into the building is /surely/ an extreme example of the clean earth problem ;-) Great talk and questions.

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  @e5Group8 ай бұрын

  Glad you liked it, great points. I was knackered doing this.

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  @sergiofernandez37258 ай бұрын

  Interesting webinar. Really enjoyed it. I look forward to the next one on cathodic building structures

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  @Jim8048 ай бұрын

  Guys' Thank You. But how do A type RCD's get round this direct current issue? Is there a video explaining this.

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  @elsenseferli49208 ай бұрын

  Hello can I ask about Compex something?

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  @Grahammundy9 ай бұрын

  I make and install security gates with full internal cage systems Come and have a look at my page

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  @brianhewitt86189 ай бұрын

  Excellent 👍

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  @LeedsSpark9 ай бұрын

  Great case for PEN fault protection to be installed as standard at the main intake.

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  @jamesharris51582 ай бұрын

  In my view, it's high time that TN-C-S be abolished and all new installations be supplied as either TNS or TT. Simply accepting a combined PEN conductor on cost basis should never have been allowed in the first place...

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  @jeremyfearon31149 ай бұрын

  As ever a interesting discussion. There was recently some possibility that the foundations for new properties would need to be tested for their Earth impedances. Most of the discussions were around exactly how this could be done (let’s not get into the additional demand for skilled persons). However, it did make me wonder whether there would be a move to TT for new builds (assuming water and gas services will be plastic). TT would make future prosumer installations more sensible where you could have a mix of solar PV, batteries, inverters and maybe generators. Or will O-Pen need to be installed prior to the consumer’s equipment. If the cost of this fell to the DNO maybe SNE cable will be less expensive than CNE + an O-PEN.

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  @nickytesla15969 ай бұрын

  New builds come with a plastic gas supply pipe. To solve the neutral faults the old supplies just need a short plastic section of pipe at the meter.

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  @jamesharris51582 ай бұрын

  What, so you'd leave the fault to go unnoticed until someone ran an extension lead out of their house and suddenly found the earth of their supply had a high potential relative to mass of earth?

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  @anthonybragg9 ай бұрын

  The boss probably wanted 4 tests a day.

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  @brianhewitt86189 ай бұрын

  They got 10, happy boss

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  @stevejagger86029 ай бұрын

  This is excellent in its way but will any action be taken? Failures of the PILC distribution cables will continue and increase. It is a direct consequence of the privatisation of the electrical distrubutiin network operation where maintenance is a dirty word.

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  @effervescence56649 ай бұрын

  Honestly this has become so common it's ridiculous. Every time I carry out a Gas Landlords Check or EICR I'm checking for it and if found passing it on to the DNO, whom are slow to act if at all. I have to say though I do not look forward to reassessments every five years for my electrical qualifications on top of an NICEIC inspection every year if this Lord would like a "robust system like the gas competent persons scheme" in place.

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  @jamesward95709 ай бұрын

  Well done

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  @MartynDuerden9 ай бұрын

  Sadly the Gas industry is not actually any better. So many sell an ‘Annual Service’ and what they actually carry out is an MOT, which is a usually just a probe in the flue. You have many unqualified too with one person signing off and registering installs. Not a benchmark for quality thats for sure

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  @sergiofernandez37259 ай бұрын

  Let's hope this starts a healthy debate that being improvement to the industry

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  @telx20109 ай бұрын

  It was mostly caused by greed anyway.

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  @Mike_59 ай бұрын

  Very important point here is that modern devices in the premises divert DC not AC

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  @cestemshow9 ай бұрын

  Some great thoughts. The problem is a lack of information in terms of infrastructure condition, material and make up. We need a good full accessible real time map of all our network including any known metal water or gas pipes. We could then include all these hybrids etc. It would take a long time but that should be the goal. They should all be regarded as some kind of hybrid tbh and treat all as a form of tn-c-s.

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  @kellymarieangeljohnson11410 ай бұрын

  I am glad my house isnt on PME fortunatley weve got the traditional cable sheath earth however a flat and shop in my road have got PME earthing i think was done when the shop was converted to 3 phase intake. The DNO had yo repair a joint in the road and there was no sign of an earth electrode in the pit but they did add one when they installed a new link box a couple of years ago. Sometimes i think DNOs just do whatever they feel like😊

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  @gwil610010 ай бұрын

  Great video guys :)

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  @30mAkills10 ай бұрын

  Next assignment: Find something that can save me from direct contact between phases or phase and neutral. Should I wear gloves and footwear all the time?

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  @ozlakota110 ай бұрын

  can you do it without affecting vehicle electronics ecu etc

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  @hazzt629811 ай бұрын

  Absolute legend my hats of to this man that's brilliant

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  @user-vc9ig3pf5y11 ай бұрын

  My advice is to say that is static electricity that what caused the electric shock

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  @amd726711 ай бұрын

  Thank you for sharing your find, I'm a new spark and find your content very interesting. Just out of interest going forward, would the phenolic breakdown cause a dead short eventually

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  @RobRidesEMTB11 ай бұрын

  Hi. Just got a C2 on EICR report as thatched cottage doesn’t have “enclosed cables or fire rated cables for thatched roof”. I can’t see any regs that require anything specific towards thatch. Any ideas?

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  @legacyelectrical Жыл бұрын

  Great discussion. I find it so weird that other countries have different earthing systems for different buildings. In NZ and Australia it's the same system every where.

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  @johnnyambi550 Жыл бұрын

  In my home country DNO neutral conductor is grounded along its way to customer premises and no earhconductor is separated as line and neutral enters the premises. But the main earthing terminal is connected to the earth electrode. Would this arrangement be called TNCS or TT?

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  @okaro65955 ай бұрын

  It the earth wire goes only to a ground rod then it is TT.

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  @datheat2854 Жыл бұрын

  People’s livelihoods being ruined The penalties given to thieves are not severe enough