Re-take - Useful Information for 2394 :

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[h=3]Consumer Units [/h][h=3] [/h][h=3]Definitions p25[/h][h=3] [/h][h=3]Consumerunit (may also be known as a consumer control unit or electricity controlunit). A particular type of distribution board comprising a type-testedco-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 anassembly of one or more fuses, circuit-breakers, residual current operated devices orsignalling and other devices proven during the type-test of the assembly assuitable for such use. [/h]

 

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Statutory legislation 2394 :

There aresome areas for some of these regulations that relate specifically to Inspection.

Electricityat Work Regulations 1989
Testing & Inspectionof installations is not just to confirm compliancewith BS-7671 but to confirm compliancewith EAWR. For inspection purposes, EAWR requires that:

Onlycompetent persons should be engaged in the testing procedure (Regulation 16)
Suitableprecautions for safe isolation need to be taken (Regulation 14)
Padlocks & isolock systems should be used so that controlof isolation remains under the control of the inspector (Regulation 13).

 

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2392-10 .this is what -&-s are looking for .
Although themajor-part of any Inspection will be ( Visual) Other human-senses may be employed .

 

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A ). ( human-senses ) will assist in-detecting

 

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Prior :- to RCD tests being carried-out , 2392-10. Your reason . it is essential for ( Safety-reasons) that the , Earth-loop-impedance of the installation has to been tested to check that the Earth-return-path is sound & that all the requirements have been-Met. BS-7671:

BS-7671: stipulates the order in which tests should becarried out . :icon_bs:

 

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2392-10 : We do this , day-in-day-out .

Circuitry Check , What is Normal to Us . ?? The list is Endless .

All circuits shall be verified through switching-operationto ensure that the circuits are installed in accordance with the designated-circuit

On / Off switching ofthe lighting circuit to ensure that the lighting circuit is installedcorresponding to the lighting-switch, protective-device and labelling

Switchingof the power-circuit to ensure that thecircuit corresponds to the ( Protective-device(s) such as RCD, RCBO & MCB,and that the protective device performs in accordance with the designated duty

Switching of the main-switch/ isolator to ensure the corresponding-circuit is propererly-controlled by themain , switch / isolator , 100A

Ensuringall the ( Protective-devices ) perform properly against the designatedcircuit

if Normal, then switch onall other out-going switches , one-by-one . ( does this justify , fault-finding ) Lighting .

What have you , “ Verified “ Circuitry-Check :13:

 

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BS-7671:2008:2011: States P/24 :icon_bs:

Circuit. An assembly of electrical equipment suppliedfrom the same origin and protected against overcurrent by the same protective device(s).

" Periodic-Inspection, EICR " whichreports on the condition of the Existing-installation.

 

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State therecommended sequence of tests and the reasons for that sequence :svengo:

State therequirements which need to be considered for protective conductors in the termsof
( ProtectiveConductors )
Circuit-protective-conductors

Conductor-continuity: 2392-10 .

All Ring-final-circuit-conductor(s) including theprotective conductors have been tested for Continuity.

Conductor(s) Continuity-test-results ( You have achieved your Verification )

Polarity check results recorded

P/393 . MEIWC: Verification – Polarity-satisfactory .
P/397 . EICR : Verification– Polarity-satisfactory . (Confirmation of supply-polarity)
p/402 . GSoTR : Verification– Polarity-satisfactory . ( Correct supply-polarity-confirmed )

Consumer-units : P/400 . Re-cap 2392-10.

4.7. Operation of main-switch ( Functional-check) 612.13.2.
4.8 . Manual-operation of circuit-breakers & RCDs toprove disconnection . 612.13.2.
4.9 . Correct-identification of circuit-details & protective-devices . 514.8.1. 514.9.1. Etc .

 

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Cables connected up with Correct-polarity. ( 2392-10 your main Achievement) Polarity / Continuity-method

All Ring-final-circuit-conductor(s) including theprotective conductors have been tested for Continuity.

Conductor(s) Continuity-test-results ( You have achieved your Verification )

 

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A ). ( human-senses ) will assist in-detecting

UnderpinningKnowledge . Q/As
Identify the four human sensesthat may be utilised during the inspection process

 

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Wording , Exams

Recognise a Schedule of Inspections as being an Essential part ofthe documentation required for either an , Initial-verification or Periodic-inspection
( Schedule of Inspections – for New –installation-work-Only ) P/395

P/399 . Condition-report-inspection-schedule . Guidance for the Inspector
Note: BS-7671:2011: Has stated the facts . :icon_bs:

(1) Section 1.0 , Where ( Inadequacies ) in the DNO-equipment are encountered the inspector should advise the personordering the work ( To inform the Appropriate-Authority )

 

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2392-10
Understand the , onerous-responsibility associated with the completion ofelectrical-installation-certificate. EIC
This Safety-Certificate has been issued to confirm . Etc

 

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Inspection Schedule . P/395 :iagree:

The Inspection-Schedule provides confirmation thata ( Visual-inspection ) has been carried out asrequired by Part 6 of BS-7671 and listsall the inspection requirements of Regulation - 611.3.

 

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Scheduleof Test Results . 2392-10 . :icon_bs:

The Schedule of Test-Results is a ( Written-record) of the results obtained when carrying out the electrical-test(s) required by Part 6 of BS- 7671. The following notes give guidance onthe compilation of the schedule, which should be attached to the ElectricalInstallation Certificate.

 

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Minor Electrical Installation Works Certificate

Scope
onlyto be used for additions to an electrical-installation that do not include theintroduction of a , New-circuit ( BS-7671 Regulation 633.1). :icon_bs: