The right cert to be issued, whether minor works or EIC

[pablobhinghi872]

If you wire an alarm circuit into a CCU and then put it on the light circuit should this be a Minor Works Cert or an EIC as a new circuit that has been added into the CCU?

 

[Andy™]

MWC. by definition of circuit, you havent added a new one

 

[binky]

I would treat that as an addition as it's not on it's own MCB, minor works.

 

[pablobhinghi872]

MWC. by definition of circuit, you havent added a new one

so if its connected on the same mcb as the lighting circuit its defined as MWC so would you need to do a Zs on them both as separated circuits?

 

[SPECIAL LOCATION]

If you wire an alarm circuit into a CCU and then put it on the light circuit should this be a Minor Works Cert or an EIC as a new circuit that has been added into the CCU?

No it hasn't... by your own description you have connected onto the light circuit...
You have NOT added a new circuit to the CU..
(same number of MCB's / RCBO's were in the CU before and after you completed your alteration to the lighting circuit)

Go and read the definition of a circuit.. (Part 2 Bs7671)..

I think you will find it sates something about an assembly of electrical equipment supplied from the same origin and protected by the same overcurrent protective device...

Circuits ARE independent of each other... All equipment that becomes de-energised if your turn off the same MCB / RCBO is on the same circuit!

 

[Andy™]

read definition of circuit in part 2

 

[pablobhinghi872]

read definition of circuit in part 2

Ok then its a MWC to be issued. thanks

 

[Murdoch]

read definition of circuit in part 2

hit, nail and head springs to mind BUT there are many people that believe that multiple cables in an OCPD = many circuits

 

[Fleeting]

It is multiple final circuits it should be on its own protective device.

 

[Murdoch]

It is multiple final circuits it should be on its own protective device.

no it’s not.

the circuit are the cables from the OCPD

 

[Fleeting]

no it’s not.

the circuit are the cables from the OCPD

Yes two final circuits.

 

[NozSpark]

A circuit is defined by the OCPD, not the cables leaving the OCPD

 

[Fleeting]

A circuit is defined by the OCPD, not the cables leaving the OCPD

View attachment 13365

What is a final circuit then.

 

[SPECIAL LOCATION]

It is multiple final circuits it should be on its own protective device.

Incorrect.. read part 2.

 

[SPECIAL LOCATION]

Yes two final circuits.

incorrect read part 2

 

[SPECIAL LOCATION]

What is a final circuit then.

A circuit utilising socket outlets or direct connections. e.g FCU's as stated previously read part 2!

 

[Fleeting]

Why do you keep saying read Part 2. Each final circuit shall be connected to its own protective device, the alarm circuit is defined as a final circuit and no amount of 'read part 2' will alter that.

 

[Murdoch]

Why do you keep saying read Part 2. Each final circuit shall be connected to its own protective device, the alarm circuit is defined as a final circuit and no amount of 'read part 2' will alter that.

Sorry mate but you really have this wrong. If an OCPD has 2 cables in it, and its not a RFC, both cables form the circuit.

If you think we are all wrong please offer up your reference in the BB to clarify this.

 

[binky]

Lets be frank, issuing a cert, whether EIC or MWC is the most important thing here, as it shows you have tested and checked your handiwork.

 

[Fleeting]

Sorry mate but you really have this wrong. If an OCPD has 2 cables in it, and its not a RFC, both cables form the circuit.

If you think we are all wrong please offer up your reference in the BB to clarify this.

Not at home to quote the Regulation but you say I am wrong then quote me the Regulation where it is acceptable to connect two final circuits to a single protective device.