One for the Electricians...

Risteard

brightontraveller wrote: »

PVC or metal conduit selection etc Is defined by installation, height, external influences, location etc
[FONT=&quot][FONT=&quot]S[/FONT]election [FONT=&quot]s[/FONT]hould be made by assessing each installation individually not what the [/FONT][FONT=&quot]Typically spec of other jobs are as all are different....[/FONT]

That's why I said "typically". I do know that here the education boards would not allow non-metallic containment in schools until very recent times, and even now in many instances require that containment be metallic.

brightontraveller

Risteard wrote: »

That's why I said "typically". I do know that here the education boards would not allow non-metallic containment in schools until very recent times, and even now in many instances require that containment be metallic.

With a few exceptions metal conduit is often used too compensate outdated installation, for bad designs, poor routing, not future proofing the build to start with etc than an electrical need? Enclosing cables in metal and terminating the main point of contact and most likely electrocution point in plastic/bakelite which breaks easy and wears has always been dumb putting in steel conduit is fine when done correctly and for the correct reasons unfortunately its often used because the client/electrician knows no better, its already there etc this adds a higher chance of electrocution under fault conditions its a conductor unlike pvc but swings and roundabouts UK it goes in far less if the installer, designer etc knows there stuff ?

Alias_Omega

Thats pretty good, i would have squeezed that 2.5mm T&E into a 16mm x 16mm (M1) trunking..

That firm has far far far too much £££ to spend...

Mk Sockets.. LAP are far far far far far cheaper..

Risteard

brightontraveller wrote: »

With a few exceptions metal conduit is often used too compensate outdated installation, for bad designs, poor routing, not future proofing the build to start with etc than an electrical need? Enclosing cables in metal ... adds a higher chance of electrocution under fault conditions

Not if it is installed correctly as it is a requirement to earth metallic containment as it is an exposed conductive part. Conductors are also less likely to be damaged in it in the first place if installed correctly.

However a large part of the reason for the requirement of metallic containment is the fact that it is non-combustible, and therefore greatly reduces the risk of cables causing entrapment.

PVC will melt.

Many places will require - even where they permit PVC containment to be used - that it be supported by non-combustible materials, e.g. galvanised saddles on PVC conduit or galvanised band etc. around cables inside PVC trunking.

Risteard

Alias_Omega wrote: »

Thats pretty good, i would have squeezed that 2.5mm T&E into a 16mm x 16mm (M1) trunking..

That firm has far far far too much £££ to spend...

Mk Sockets.. LAP are far far far far far cheaper..

MK sockets are well regarded within the industry.

brightontraveller

Risteard wrote: »

Not if it is installed correctly as it is a requirement to earth metallic containment as it is an exposed conductive part. Conductors are also less likely to be damaged in it in the first place if installed correctly.

However a large part of the reason for the requirement of metallic containment is the fact that it is non-combustible, and therefore greatly reduces the risk of cables causing entrapment.

PVC will melt.

Many places will require - even where they permit PVC containment to be used - that it be supported by non-combustible materials, e.g. galvanised saddles on PVC conduit or galvanised band etc. around cables inside PVC trunking.

I had said "fine when done correctly and for the correct reasons" Your editing a post Doesn't include that ? Also steel conduit is not the only option and it doesn't change the facts that its often there simply because of poor initial design etc ...And in the instance of post was obviously not specified

Risteard wrote: »

MK sockets are well regarded within the industry.

MK Products are no longer thought of well by many within the industry there product recalls mean most think twice before using any MK Product ,,,, Personally having had to change hundreds we are certainly in the not so good camp
Or were they not recalled in Ireland ?

Risteard

brightontraveller wrote: »

I had said "fine when done correctly and for the correct reasons" Your editing a post Doesn't include that ? Also steel conduit is not the only option and it doesn't change the facts that its often there simply because of poor initial design etc ...And in the instance of post was obviously not specified



MK Products are no longer thought of well by many within the industry there product recalls mean most think twice before using any MK Product ,,,, Personally having had to change hundreds we are certainly in the not so good camp
Or were they not recalled in Ireland ?

I said MK sockets are well regarded within the industry. I never said that MK haven't had their problems with other things. MK Logic Plus grid switches and MK sockets are pretty good though. I certainly haven't heard of LAP accessories being specified in schools (which were mentioned as being cheaper).

As for fire survival I didn't say that steel conduit was the only option, but it is certainly a common one. MIMS cable is horrendously expensive. FP200 with P clips is common for fire alarm and central battery system emergency lighting (although drops still tend to be in steel conduit in schools amongst other places).

brightontraveller

Risteard wrote: »

I said MK sockets are well regarded within the industry. I never said that MK haven't had their problems with other things. MK Logic Plus grid switches and MK sockets are pretty good though. I certainly haven't heard of LAP accessories being specified in schools (which were mentioned as being cheaper).

As for fire survival I didn't say that steel conduit was the only option, but it is certainly a common one. MIMS cable is horrendously expensive. FP200 with P clips is common for fire alarm and central battery system emergency lighting (although drops still tend to be in steel conduit in schools amongst other places).

[FONT=&quot]That’s the point you said it industry doesn’t... Wait till you have to go around to hundreds of clients telling them products you’ve fitted have been recalled... [/FONT][FONT=&quot]In the real world where companies are !!!!ed off when you tell them they have to loose production time etc they don't want any of there products at all...[/FONT] To add insult they try and offer less than others whom have recalled to change them , try and palm there own morons over to do it, want you to breach data protection giving your client details, tells me you've not had to do it :rotfl:

[FONT=&quot]I never mention fire survival you did already said why its most often used bad design etc that’s not changed and the industry as a whole doesn't use it anymore if they have half a brain and with AM2 droping it will be even less used [/FONT]

Risteard

The recall was on Double Pole MK main switches - not socket outlets.

Fire survival and preventing entrapment is a requirement both of Regulations and insurance companies.

brightontraveller

Risteard wrote: »

The recall was on Double Pole MK main switches - not socket outlets.

Fire survival and preventing entrapment is a requirement both of Regulations and insurance companies.

[FONT=&quot] Insurance companies you might as well say pub landlord…. Its your name on the c[FONT=&quot]e[/FONT]rts, You who’ll be dragged up in court etc [FONT=&quot]I[/FONT]f your letting insurance company dictate an installation then you’re a fool,
….[/FONT]:rotfl: