Inspection, Testing and Certification (Part 6)
Supply protective device characteristic Type – add type of supply protective device. Also add the protective device current rating. Particulars referred to in the certificate Method of fault protection Either tick EEBADOS (Earthed Equipotential Bonding and Automatic Disconnection of Supply) or, if this method is not used, enter ‘see attached’ in space provided and include the necessary details with the certificate. Means of earthing Tick appropriate box – see Chapter E. Maximum demand The maximum demand is the designer’s estimation of the maximum load demand of the installation expressed in kVA or amps per phase and takes into account diversity. Further guidance on this subject can be found in Chapter C of this book. F 4.3.2 Single signatory electrical installation certificate (BS 7671: 2008) SI
Electrical Installation Certificate BS 7671: 2008 - Single Signatory
SUB-MAIN (WHERE APPLICABLE)
BS 7671: 2008 Requirements for Electrical Installations (17th Edition IEE Wiring Regulations) © Copyright The Electrical Contractors’ Association,
(For use in certification of AC installations only)
This certificate is not valid if the number has been defaced or altered.
DETAILS OF CLIENT
CIRCUIT
REF
New Installation ........�
PROTECTION ...........Amps
Zdb ........................... Ohms
PROSPECTIVE FAULT CURRENT .............................................................. kA
INSTALLED CIRCUIT DETAILS OVERCURRENT DISC DEVICE SHORTTIME CIRCUIT CAPACITY........kA
INSTALLATION ADDRESS:
DESCRIPTION AND EXTENT OF INSTALLATION COVERED BY THIS CERTIFICATE
DISTRIBUTION BOARD REF: ........................... LOCATION ......................................................................................................................
TYPE .........................SIZE.................mm2
A
DESCRIPTION B
TEST RESULTS CONDUCTORS
R1 + R2 Ω
Ph - Ph Ω
CONTINUITY
N-N Ω
CPC - CPC Ω
L-L MΩ
INSULATION RESISTANCE
L-E MΩ
P O L A R I T Y
H
J
K
L
M
N
P
RING
TYPE
RATING AMPS
INSTALLED REF METHOD
C
D
E*
SIZE LIVE CPC mm2 mm2
F
G
EARTH FAULT
RCD
LOOP TRIP IMPEDANCE TIME OTHER Zs AT 1∆n FUNCTION ms Ω TESTS
R
S
T
REMARKS V
Addition .....................� Alteration ...................� FOR DESIGN, CONSTRUCTION, INSPECTION & TESTING
Name .................................................................................................................
I/We, being the person responsible for the Design, Construction, Inspection & Testing of the electrical installation (as indicated by my signature below), particulars of which are described above, having exercised reasonable skill and care when carrying out the Design, Construction, Inspection & Testing, hereby CERTIFY that the said work for which I/we have been responsible is to the best of my knowledge and belief in accordance with BS 7671: 2008 except for the departures, if any, detailed as follows: Departures and comments on existing installation:- .................................................................................... ........................................................................................................................................................................... ........................................................................................................................................................................... ...........................................................................................................................................................................
for ..................................................................................................................... ........................................................................................................................... ........................................................................................................................... Position ................................................................ ............................................................................... ............................................................................... I/We recommend that the installation be further inspected and tested after an interval of not more than ............................. years.
SUPPLY CHARACTERISTICS AND EARTHING ARRANGEMENTS Voltage .................V
Prospective Fault
Frequency ..........Hz
Current ................................kA Earth Fault Loop Impedance Ze ................Ohms
Number and Type of Live Conductors
� ...........2 No. 1-Phase � ...........3 No. 3-Phase � ...........4 No. 3-Phase
PARTICULARS OF INSTALLATION REFERRED TO IN THIS CERTIFICATE Method of fault protection: Earthed equipotential � bonding and automatic � disconnection of supply
Supply Protection Type ................................. Current Rating ..........................A
Earthing Arrangements TN-S TN-C-S TT Other ...........................
� � �
Main Switch
Maximum Demand
Location ...........................................................................
.......................................... Amps Per Phase
Type ................................................... RCD 1∆n .........mA
� or Details of Earth
Type .................................................................. Location ............................................................ Resistance ...............................................Ohms COMMENTS ON INSTALLATION:
Main Protective Conductors Earthing
Rating ................................................ Amps (Per Phase)
RCD Time Delay ..........................................................ms
Supply Earth Electrode
Bonding
� Copper CSA ..........mm2 � Steel � Aluminium � Copper CSA ..........mm2 � Steel � Aluminium
09/07
TEST INSTRUMENTS USED INSTRUMENT
TYPE
SERIAL No.
ACCURACY VERIFIED
COMPANY: .........................................................
Connections � Verified
SIGNED: .............................................................. * Denotes optional information only
SHEET 1 OF ____
TESTER DETAILS NAME: ................................................................
Connections � Verified
DATE: .................................................................
09/07
SHEET 2 OF ____
(For A4 versions, see Appendix 17.)
Certificate overview Where design, construction and inspection and testing are the responsibility of one person or organization, this single signatory certificate can be used and fully complies with BS 7671: 2008. It also combines a test sheet and can be used for an installation of up to 18 circuits of any current rating. Details of client Insert client’s name and title.
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