Tightness testing a natural gas supply, ACS REVISION IN LESS THAN TEN MINUTES (hopefully) part 1.
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- čas přidán 20. 07. 2024
- Derek in part one of ACS revision takes us through tightness testing for revision for the ACS gas assessment. In these videos he aims to teach us the process by just getting on with it.
Well done Derek, I have been in the gas industry, in a technical capacity for 55 years and recognise a genuine professional.
10mintes or more, it doesn't matter, your teaching is perfect ,if the subject needs more than 10 minutes, fine it's educational.
Thanks alot
Hi Derek, have my 1st re-assessment in October so am just using your videos to jog my memory, but have found them to be really straightforward, where things need to be explained it’s done simply - so as not to end up feeling blinded by science ( regs or bs….) - thank you. Also considering they are freely available to all and you ask for and respond to comments why individuals find the need to be critical or negative says more about them than you. Anyway thanks again.
Thanks so much for this Derek, got my ACS coming up soon and these revision videos will be really handy 🙏👍
Excellent video. Full of information. Thanks Derek 👍😃
Solid grounding of the basics, sets the foundations for everything else 🔥 great vid Derek
As always, instructive, informative and just great; thanks for the time and effort. Much appreciated
Brilliant video as usual, very good.
This guy is amazing ! So much useful information for newbies ! Thank you !
It’s amazing full of knowledge Video .Thanks Derek
I love dereks videos always easy to understand nice and clear well explained thank you derek your a star.
Thanks Derek , enjoyed to listen & watch
Excellent video Derek, well explained in under 10 minutes. 👍👍😀😁
It’s amazing video full
Of knowledge
Thanks Derek
Thanks Derek, another informative video👍👍👍
thanks again legend. you're really helping out the new engineers do things the right way. we need more people like you who are genuinely helpful and not just talking nonsense just to sell products! Many thanks!
Definitely starting to get it! Thanks Derek!
Brilliant video again Derek. 🙂
Well done, please don't worry much about the people complaining, this is about Gas and its a dangerous thing. Please take your time and explain properly for our safety 🙏
Thanks Derek I am currently training to be a Gas engineer through Access Training and this is so helpful and actually better than the webinars I attend. feels easier to follow because its such a short period of time.
Thanks Derek great video 🙏👍🙏👍
Thanks for another brilliant video
Great vid thanks Derek 👍
Brilliant video Derek, that exactly what we learned in last week. 👍👍👍 Billy trainee Tomkat.
Top video. Cheers Derek
That was one of the best if not the best explanation
haha appreciate the shorter length without the waffle. look forward to this series, good idea. cheers mate
These videos are like im back in the classroom 👌🏻
Thanks it was just lovely
Brilliant mate. Clearly explained!
Tanx for the upload excellent information 👍
Good video, I will get my apprentice to watch it. Much appreciated
awesome video yet again
Great video,thanks derek..
Top presentation!
Nice video Derek. Well explained 👍🏻. The timing on which I watched this video was pretty good. ACS revision! By the way, I don’t think you waffle at all mate. Keep up the good work. Loving it.
Asian Jon. Training.
Great .. keep them coming .. you helped me pass all my exams just before Christmas .. just waiting for my gas safe number now.
Congratulations and welcome to the world of gas 👍🏻
Another useful and interesting video by tom cat gas training .well done derek.
Thank you for the video..
Top video again, thanks .
Good video as usual.. but you have to connect continuity bonds when testing the ecv for let by with LDF..
Excellent explanation 👌
Great video
Great video Derek, This is fantastic for my revision, can you do a 10min video on flue and chimney
Great video helps a lot👍
I like the longer version you go in to more detail.
But still great
Thanks mate
Thank you my teacher😊
Thanks Derek, Ion Vitiu 👍
Thanks Derek
Cheers Derek
great !! another good one ...
Thanks derek.
Thanks, great vid. Waffle or no waffle.👏💪🛠
First class presentation
Very informative
Nice one Derick seems strange you not waffling. Like the new 10 min format and glad you got rid of the background music, much clearer without it. Thanks Rick Kirk
The penny is dropping with the Tightness test now. Great Vid
brilliant 👏
Nice one Derek , any length of video is fine by me....👍
Very good
Thanks
Thomas Bradwell
Thanks Derek
I don't mind when you waffle haha. At least you're not a boring, monotone teacher. I really like your videos and they are very educational 👍🏻
Top man
Quality vid
thanks
Please can you us a video about boiler fault finding because you are excellent teacher
Good video BTW
Thank you, Nikola Ditsov
👍 Derek
great
👍😊
Thank you
So drop can not be on pipe work or meter
Then if we have drop permissible
System is pass but we need to actually isolate the appliances and make sure drop was on them not on pipe work or meter
So
In reality
Tightness test does not really says if drop is on meter or appliances or pipe work
Is for whole system
So if meter is leaking or pipe work
Then we only find out by isolating the appliances But again. Even when we do that
Then we need to do tightness test stage by stage of installation by isolating the part of system and eventually use electronic gas leak detector. To really find out where the leak is
Weather on pipe work or meter
And that’s also proses of finding leak and if is meter then to report it and get it replaced or fix the section of pipe work which is leaking
Your the man long video or short
👍
Any chance on a vid covering appliance connection test as well.
Great video, you mentioned let by test less than 0.25 on a U gauge, but the gauge readable movement (GRM) is 0.5?
Jason-Dean Moran-Campbell
👍Arek Winski
Great video. Short and to the point. The nightmare question..... what classifies as an existing installation, not new. Always a question I get asked. Honestly, I don’t know the definitive answer. 🤷🏻
New is when you have just installed it existing is when you haven’t installed it 👍🏻
👍 derek
Hi pal, great video! Teach commercial too? If so, could you do a video on commercial tightness testing?
It’s on the to do list 👍🏻
👍🤓👍
👍Sue Warrington
Good video much prefer the shorter videos 👍🏻
Hi Derek, thank you for these!! Just wondering, are we expected to know pipe and drop size of by heart for the ACS exam? Cheers, Michelle
No all the ACS exams are open book so just need to understand it
Hi , if you are at an old installation let's say , you have a drop within tolerance , then you isolate all appliances , who's to say that an isolation valve could not be passing on one or all the appliances enough to make you think there is a drop in the installation pipework ? Some stuff I feel gets confusing ? Can you clarify how you would proceed , do we need to go that far ?
Hi, great video. I just want to query the permissible drop process as this is different to what I was taught and what gas safe technical have told me. I was told it has passed a tightness test if it falls in the permissible drop criteria for that installation and further investigation is not required ie attempting to trace a leak. I was told that an isolated appliance is still a connected appliance so the permissible drop would still be allowed with appliances isolated and only if you disconnected all appliances and tested would you not be allowed a permissible drop. I'm not trying to be smart here, I'm genuinely trying to clarify in my own mind, the best way of doing it as I can see the point of both sides here. Especially if a landlord complains you have capped his tenant off and have quoted him for a very expensive repipe then another engineer says you're wrong and turns it back on. Any info appreciated
The regs are quite clear it says permissible drop with appliances connected and zero drop on the carcass. If you watch my video on the gas leak we found at the CZcamsrs house you will see how important it is if you find the drop on the carcass.
i can smell gas outside when the boiler is trying to fire( purge) obvously its passing gas valve. now do you let that go? even if its within regs?
This is very helpful and the 10 minute videos are great
Can you do more for us trainees
Controles would be a good one but will be a few of them I guess of you do them all
Medium pressure meters
Kaiormston 👍
Great video!
At 8.20 if appliances are connected and there is a 3mb drop can you leave it, or do you have to isolate appliances and just test carcass?
You should isolate the appliance and test the carcass but most don’t 👍🏻
@@tomkatgastraining thanks
@@tomkatgastraining so is connected and isolated interchangeable? as in above, existing system Isolate appliances, test on carcass No Drop permitted?
@@philipcooper4136 connected is it was gas going to it isolated means you have turned the gas supply off at the service valve and of course disconnected means removed from the gas supply
CH👍
In the last scenario, who here would feel comfortable with an 8mb drop? I know I wouldn’t!
Tomkate👍🏻
Jon-Paul Ward
chris taylor
Artur Przybyl
Hi , doing my Acs atm
But I don’t understand clear what happened if a let by test fail . What you need to do if you can’t fix it !!!??
Need to cap the ECV valve off and contact the gas emergency number ? Thanks
Let by fail is classed as AR. It’s only dangerous if you are working on the gas pipe is new boiler install. It’s our ESP problem so inform them of the problem.
Dan Riglin