Bulk Workwear - Clothing Suppliers for the Whole Forum Network
This official sponsor may provide discounts for members
Advertisement - Content continues below
Advertisement - Content continues below

Discuss smoke alarm wiring. in the Security Alarms, Door Entry and CCTV (Public) area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

went to change three smoke alarms today and found they were wired in 1.5 t&e useing the cpc as the interconect link wire.
would you class this as a c1 / c2
i was thinking c1,
any thoughts
 
Test Meter - Forum Sponsors since 2007!
This official sponsor may provide discounts for members
Advertisement - Content continues below
Are you changing smoke detectors or carrying out an EICR. Personally I would not have changed them if the cpc were acting as the interconnection.
 
  • Thread Starter Thread Starter
  • #6
Are you changing smoke detectors or carrying out an EICR. Personally I would not have changed them if the cpc were acting as the interconnection.
was suposed to have change them but refused to as customer said it was ok when he had a eicr done 5 years ago, not for me back in van on to the next one
 

buzzlightyear

-
Arms
Esteemed
went to change three smoke alarms today and found they were wired in 1.5 t&e useing the cpc as the interconect link wire.
would you class this as a c1 / c2
i was thinking c1,
the begging question why are you asking in the first place .,asking which code .
 
I am not sure the voltage of the interlink but the requirement would be for a multicore cable that all conductors are insulated for the highest contained voltage, a bare cpc does not satisfy this requirement.
 

Charlie_

-
Arms
How old were the detectors?
>10 years then they need to be replaced, replacements being mains rf units..
I don’t see how the using the cpc can be a C1 or C2?
The interconnection is only 9 volts.
I would code it as a C3
 

richy3333

-
Mentor
Arms
Supporter
Esteemed
I'd class it a C2. Where ADS is used the circuit requires a CPC. See 411.3.1.1 and GN8.

'A CPC shall be run to and terminated at each point in the wring and at each accessory point except a lamp holder having no exposed conductive parts and suspended from such a point'

The detectors may well be class 2 etc but the circuit still requires earthing.
 
Electrical2Go - Online Electrical Supplier
This official sponsor may provide discounts for members
Advertisement - Content continues below

Reply to smoke alarm wiring. in the Security Alarms, Door Entry and CCTV (Public) area at ElectriciansForums.net

Bulk Workwear - Clothing Suppliers for the Whole Forum Network
This official sponsor may provide discounts for members
Advertisement - Content continues below
Top Bottom