Flexi -3G Installation & Commissioning Manual
Chapter 9. Appendices
Document No: - 4493-CM-EN-10989402
Page 93 of 94
Copyright © 2008-2009 Eaton Corporation. All Rights Reserved
Design Authority To Complete This Section
Supply Characteristics And Earthing Arrangements
Earthing
Arrangements
Number and Type of Live Conductors
AC:
DC:
TN-C
TN-S
TN-C-S
TT
IT
1 Phase, 2
Wire
2
Pole
2 Phase, 3
Wire
3
Pole
3 Phase, 3
Wire
Other
Alternative
source
of supply (to be
detailed on
attached
schedules)
3 Phase, 4
Wire
Nature of Supply
Parameters
Nominal voltages U/U
o
V
Nominal frequency f
Hz I
pf
Prospective fault current 1
pf
kA
External loop impedance Z
e
Ω
Supply
Protective
Device
Characteristics
Type:
Nominal current
rating
.A
Short circuit
capacity
.A
Particulars Of Installation Referred To In The Certificate
Details of Installation Earth Electrode
(where applicable)
Type (e.g. rod(s), tape)
Location
Electrode resistance
R
A
Means of
Earthing:
Supplier’s facility
Installation Earth
Electrode:
Ω
Maximum Demand
..
A
Main Protective Conductors
Earthing conductor
Material:
c.s.a: ………….
mm
2
Connection
Verified:
Main equipotential
bonding
conductors
Material:
c.s.a: ………….
mm
2
Connection
Verified:
To incoming water and/or gas service:
To other elements (specify):
Main Switch or Circuit-breaker
BS Type & No of poles:
Current rating A Voltage rating
V
Location:
Fuse rating or circuit-breaker setting ……………….A
Rated residual operating current I
∆
n
= mA, and operating time of ms (I
∆
n
) if main circuit breaker is
and RCD
Comments On Existing Installation
:
No remedial work is required:
The following observations are
made:
Schedules
The attached Measurement & Record Schedules (MR 16s) are part of this document and this certificate is only
valid when Measurement & Records are attached to it. Measurement & Records are attached: