Explosion Proof Wiring Systems

[Engineer54]

ah yes the oxymoron that is the intrinsically safe tester. i would personally IR in the conventionally way in the safe area,but if you need to do it in zones 2 or 1 on the kit make sure you do a gas test and have a hotwork permit.
pit electricians, ah the ones who when ty wrapping swa above ground still leave large drip loops between every ty.

Actually this was a genuine question, seeing as you were/are working in a Hazardous Div 1 Zone 1
enviroment. The reason i asked, is that the old universal standard ''Intrinsically Safe'' Metrohm (that i still own) is no longer classified as intrinsically safe, and so no longer allowed on European EX 'd' sites. Soooo, i was wondering what has the Metrohm IR tester been replaced by, when needing to conduct IR tests in such hazardous areas??


I will hasten to add, that i still use my Metrohm intrinsically safe in such areas, as i have always done for the last 30 odd years, ...and with no detrimental effects whatsoever!! I also believe they are still sold by the present manufacturer for use within hazardous areas outside of the EU. That's Europe for you!! lol!!

 

[pepparz]

Actually this was a genuine question, seeing as you were/are working in a Hazardous Div 1 Zone 1
enviroment. The reason i asked, is that the old universal standard ''Intrinsically Safe'' Metrohm (that i still own) is no longer classified as intrinsically safe, and so no longer allowed on European EX 'd' sites. Soooo, i was wondering what has the Metrohm IR tester been replaced by, when needing to conduct IR tests in such hazardous areas??


I will hasten to add, that i still use my Metrohm intrinsically safe in such areas, as i have always done for the last 30 odd years, ...and with no detrimental effects whatsoever!! I also believe they are still sold by the present manufacturer for use within hazardous areas outside of the EU. That's Europe for you!! lol!!

no idea what theyve been replaced with. u can use what ever IR machine u want so long as u do a gas test to prove no flammable atmosphere exists. this is of course a continual gas test. but i just do it in the safe area and test the whole circuit with lids ON.very rarely have i had to IR in zoned area

 

[D Skelton]

Quite the little battle going on here, still, I think it could be more epic! Pepparz, for a bit of all out war why don't you ask Eng about 3/8" unthreaded earth rods, I know he loves talking about them!

 

[High Tower]

Quite the little battle going on here, still, I think it could be more epic! Pepparz, for a bit of all out war why don't you ask Eng about 3/8" unthreaded earth rods, I know he loves talking about them!

Don't u dare!!, you will be telling him to ask about exporting PME's next.................

For the love of god, do not poke the bear lol

 

[Clive P]

Hi,

Continuing on from E54's post ref the Intrinsically safe Metrohm; yes I still have mine too.
If I remember rightly this was deemed not suitable for use in the UK when the regs were updated due to the fact that it had to produce a test current of greater than 1mA ( if memory serves me right ) and we had to revert to the standard tester ensuring we carried out an atmosphere test before use. All of our resistance tests carried out with an Intrinsically safe Multimeter.
There was also something about dissipating stored energy, which I believe the Metrohm also catered for, ie, testing MICC where you needed to discharge the stored energy as the cable acts like a capacitor.
As E54 says , you can still buy this Instrument, but it is now called a Safety tester.

Regards.

 

[Engineer54]

Hi,

Continuing on from E54's post ref the Intrinsically safe Metrohm; yes I still have mine too.
If I remember rightly this was deemed not suitable for use in the UK when the regs were updated due to the fact that it had to produce a test current of greater than 1mA ( if memory serves me right ) and we had to revert to the standard tester ensuring we carried out an atmosphere test before use. All of our resistance tests carried out with an Intrinsically safe Multimeter.
There was also something about dissipating stored energy, which I believe the Metrohm also catered for, ie, testing MICC where you needed to discharge the stored energy as the cable acts like a capacitor.
As E54 says , you can still buy this Instrument, but it is now called a Safety tester.

Regards.

Had to have a chuckle about using standard IR testers in hazardous installations. There was a time when you would have been booted off the site and banned from ever returning if found using one!!

Outside of Europe, i've found the Metrohm is still the standard issue to maintenance electricians on such installation sites... Hard to believe a standard IR tester can be used in O Zones, as it is deemed to be a continuously hazardous zone, ...or used to be!! lol!!

 

[Des 56]

It says it all when practices that have stood the test of time are put aside for H+S drivel

 

[SPARTYKUS]

H+S drivel gone mad - an example - used to work on a huge site (Gas Board), had a bar on site n' everything, well it also had a heated outdoor pool.

back in the nineties I turned up one day with my cossie and popped down at lunch time to it, all gated up so went back to the jobsworth and asked "whats happened to the outdoor pool?"

"filled it in and slabbed over it"

me: "er, why?"

Jobsworth: "dangerous. Someone might drown"

I nearly passed out from the miasma of stupidity in the air

 

[Brightspark2]

H+S drivel gone mad - an example - used to work on a huge site (Gas Board), had a bar on site n' everything, well it also had a heated outdoor pool.

back in the nineties I turned up one day with my cossie and popped down at lunch time to it, all gated up so went back to the jobsworth and asked "whats happened to the outdoor pool?"

"filled it in and slabbed over it"

me: "er, why?"

Jobsworth: "dangerous. Someone might drown"

I nearly passed out from the miasma of stupidity in the air

Ha ha stood there in your flip flops, speedo's and towel...ha ha

Question is do you still own the Speedo's? Lol

 

[SPARTYKUS]

Ha ha stood there in your flip flops, speedo's and towel...ha ha

Question is do you still own the Speedo's? Lol

yeah but can only get one leg in them now