Switch fuse - metal clad recommendations

[Octopus]

Need to do a switch fuse install and I was wondering which products people prefer ........

Needs to be metal as the sub main is going to be SWA

Thanks

 

[Octopus]

I see Ian 1981 has disagreed with me but next deigned to explain why.

Your list precisely outlines the ambiguity ..........

 

[Deleted member 26818]

Your list precisely outlines the ambiguity ..........

To my mind there is no ambiguity.
Whilst I listed similar items, the true test of similarity, is the British or European Standard the items are constructed to.

 

[Octopus]

Hum ... light switches ....

 

[Deleted member 26818]

A 3 gang light switch distributes power from one source to 3 separate destinations.
Some light switches have on/off, dimmer control and a fuse.

 

[Octopus]

A 3 gang light switch distributes power from one source to 3 separate destinations.
Some light switches have on/off, dimmer control and a fuse.

So do they all need to be metal?

 

[Deleted member 26818]

So do they all need to be metal?

No because they are constructed to a different standard than CUs (new term DBOs).

 

[Midwest]

Where is the description of consumer unit?

 

[Deleted member 26818]

In Chapter 2.
Sorry, Part 2.

 

[Midwest]

In Chapter 2.
Sorry, Part 2.

Arrg of course it is. Wonder why they thought it necessary to define a Consumer Unit. Every good sparks knows what a consumer unit is.

 

[Ian1981]

Yes a light switch can be considered similar switchgear assemblies to that of a consumer unit made up of OCPD rcds and the like........

Give over!!

421.1.201 Within domestic (household) premises, consumer units and similar switchgear assemblies shall comply with BS EN 61439-3





Similar switchgear assemblies
The phrase ‘similar switchgear assemblies’ in Regulation 421.1.201 means those assemblies used for the same fundamental application as a consumer unit. A consumer unit is defined in Part 2 of BS 7671:

If you wish to compare a consumer unit to a light switch then be my guest!
What goes on in people’s heads who think that, god only knows and is quite worrying.

 

[Midwest]

Yes a light switch can be considered similar switchgear assemblies to that of a consumer unit made up of OCPD rcds and the like........

Give over!!

421.1.201 Within domestic (household) premises, consumer units and similar switchgear assemblies shall comply with BS EN 61439-3





Similar switchgear assemblies
The phrase ‘similar switchgear assemblies’ in Regulation 421.1.201 means those assemblies used for the same fundamental application as a consumer unit. A consumer unit is defined in Part 2 of BS 7671:

If you wish to compare a consumer unit to a light switch then be my guest!
What goes on in people’s heads who think that, god only knows and is quite worrying.

I think its a have

 

[Ian1981]

‘Consumer unit(may also be known as a consumer control unit or electricity control unit). A particular type of distribution board comprising a type-tested co-ordinated assembly for the control and distribution of electrical energy, principally in domestic premises, incorporating manual means of double-pole isolation on the incoming circuit(s) and an assembly of one or more fuses, circuit-breakers, residual current operated devices or signalling and other devices proven during the type-test of the assembly as suitable for such use.’

 

[MDJ]

Need to do a switch fuse install and I was wondering which products people prefer ........

Needs to be metal as the sub main is going to be SWA

Thanks

MEM/ Bill Talismen, easy to fit and good Kit IMO.

 

[Deleted member 26818]

Yes a light switch can be considered similar switchgear assemblies to that of a consumer unit made up of OCPD rcds and the like........

Give over!!

421.1.201 Within domestic (household) premises, consumer units and similar switchgear assemblies shall comply with BS EN 61439-3





Similar switchgear assemblies
The phrase ‘similar switchgear assemblies’ in Regulation 421.1.201 means those assemblies used for the same fundamental application as a consumer unit. A consumer unit is defined in Part 2 of BS 7671:

If you wish to compare a consumer unit to a light switch then be my guest!
What goes on in people’s heads who think that, god only knows and is quite worrying.

Ok forget about light switches, how about SFCUs?
Many SFCUs have double pole switching and they have a fuse.
Some have a fuse and an RCD.

 

[Ian1981]

Ok forget about light switches, how about SFCUs?
Many SFCUs have double pole switching and they have a fuse.
Some have a fuse and an RCD.

Part 2 defines a fused connection unit as a device associated with the fixed wiring of an installation by which appliances may be connected,and having provision for a replaceable cartridge fuse link.
Made to an entirely completely different British standard.