Wire in flex!!!Hi

[SP4RKI]

Hi everyone, prob seen this before can you wire outgoing circuits in 3 core flex??

 

[Spoon]

Welcome to the mate.
Please can you give us a bit more info.
What CSA is the cable? What is it supplying? Is it coms or power. What route is the cable taking? Anything else you would like to add may also help.

 

[Pete999]

Hi everyone, prob seen this before can you wire outgoing circuits in 3 core flex??

Why would you want to, I do believe that it is permissible, but not for this Electrician thank you

 

[Spoon]

Depends on what type of cable he is thinking of using and what for Pete. Lets see if the OP answers my questions.

 

[SP4RKI]

Hi thanks for replies

fed in 3c 1.5 flex
circuit runs in galv trunking and tray work
protected by 16a type b mcb
switched via a 20a contactor

not found what it's switching yet but most probably doing some stage lighting in the theatre area, on a rig

 

[Pete999]

Depends on what type of cable he is thinking of using and what for Pete. Lets see if the OP answers my questions.

Await the OP's reply with bated breath then Spoon.

 

[SP4RKI]

It's an existing installation, just doing EICR, but not sure I would of used flex

 

[Pete999]

Not worked in the theater area ever, doesn't the cable need to be reinforced in some way? as I say this type of work is specialised isn't it, could be wrong just not sure.

 

[SP4RKI]

Yes you would think it would be wired in some specialist flex, protected, but maybe the trunking gives it protection but not tray, seems like theatre installation electricians just use what's on the van

 

[jimmy mustard]

Isn't all the mobile equipment wired in flex anyway?

 

[Spoon]

Hi thanks for replies

fed in 3c 1.5 flex
circuit runs in galv trunking and tray work
protected by 16a type b mcb
switched via a 20a contactor

not found what it's switching yet but most probably doing some stage lighting in the theatre area, on a rig

Isn't the mcb labelled to say what the circuit is?
What's wrong with using flex in trunking or cable tray?
Where is the trunking & cable tray located?

 

[SP4RKI]

I'd say yes, but normally on a 13/15 plug and would probably have to be pat tested, not sure, these are wired direct to the dist. Board

 

[Lucien Nunes]

seems like theatre installation electricians just use what's on the van

Hmm, a sweeping generalisation there I think, or maybe you just haven't seen one of our jobs yet

 

[drzsta]

What is the problem with flex? Why couldn't I wire a lighting circuit with H07rnf?

 

[Deleted member 9648]

It's an existing installation, just doing EICR, but not sure I would of used flex

What's an EICR got to do with what you would have used? Don't you have a regs book?

 

[7029 dave]

Hi everyone, prob seen this before can you wire outgoing circuits in 3 core flex??

Not me next.

 

[davesparks]

seems like theatre installation electricians just use what's on the van

Well I was going to be helpful, but that insult has change my mind!

For the record most of the installation work I carry out in theatres is either steel conduit/trunking or MICC.

I am also getting sick and tired of electricians who don't understand theatre, and it's unique requirements, doing EICRs or generally making an absolute mess of theatrical installations.

 

[Lucien Nunes]

Yes when you see really crapola work on a stage install it often turns out to have been done by the general installers rather than the specialists, working outside their sphere of knowledge.

 

[davesparks]

Yes when you see really crapola work on a stage install it often turns out to have been done by the general installers rather than the specialists, working outside their sphere of knowledge.

It's the IWB made up with switched 13A sockets that sticks in my mind the most!
Apparently 15A sockets are illegal! [emoji35][emoji35][emoji35]

 

[rfears]

Ah 15A, luxury... my last but one theatrical installation was 5A throughout apart from the 5A plug to 15A socket specials we had for plugging hire kit into our dimmer circuits...