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18
TABLE 2
SANS 10142-1
Section 4 - Inspection and Tests
(New and existing installations)
Additional tests added
Yes
No
N/A
Inspection
Note: Answer “Yes” or “N/A”. The report shall not be issued if any “No” answers appear.
Existing Installation
New / Altered /
Temporary Installation
1. Accessible components are correctly selected
2. All protective devices are of correct rating
3. All protective devices are capable of withstanding the prospective fault level
4. Conductors are of the correct rating and current-carrying capacity for the protective devices
and connected load
5. Components have been correctly installed
6. Disconnecting devices are correctly located and all switchgear switches the phase conductors
7. Different circuits are separated electrically
8. Connection of conductors and earthing and bonding are mechanically sound
9. Connection of conductors and earthing and bonding are electrically continuos
10. Circuits, fuses, switches, terminals, earth leakage units, circuit breakers, distribution boards are
correctly and permanently marked or labelled
11. Where an electrical circuit passes through a fire barrier, the integrity of the fire barrier has
been maintained
12. Safety and emergency lighting and signs are functioning correctly
13. (a) in the case of new installations or additions or alterations to existing installations, the new,
added or altered installation complies with this part of SANS 10142; or
(b) in the case of installations which existed prior to the publication of this edition of SANS
10142, the installation complies with the general safety requirements in this edition of this
part of SANS 10142 and is reasonably safe
Note 1: Indicate (a) or (b) or (a) and (b) on the test report.
Note 2: Indicate N/A in the case of (a) or (b), where applicable
14. Where an alternative supply is installed, it complies with the requirements in
respect of connections, change-over switch and indicator
15. Is the position of the readily accessible earthing terminal for earth connections
of other services by installers of such services (see 6.11.5) indicated on the
distribution board (see 6.6.1.21 (e))?
Tests
Carry out all the tests for the main distribution board. Also conduct all tests and
complete copies of the tests for each distribution board and for each supply
(normal and alternative supplies), and attach as annexures to this report.
Units
Instrument
Reading / Results
Existing installation
New / Altered /
Temporary Installation
1. Continuity of bonding
Ω
2. Resistance of earth continuity conductor
Ω
3. Continuity of ring circuits (if applicable)
––
4. Earth loop impedance test: at main switch
Ω
5. Prospective short-circuit current at point (PSCC)
for sub-distribution boards. Indicate:
KA
Calculated
Measured
From supplier
6. Elevate voltage between incoming neutral and external
earth (ground)
V
7. Earth resistance at electrode (if required)
Ω
8. Insulation resistance
M
Ω
9. Voltage at main distribution board with no load for each
phase to neutral
V
R
Y
B
R
Y
B
10. Voltage at main distribution board with load (as calculated for
full load) for each phase to neutral
V
R
Y
B
R
Y
B
11. Voltage at available load (worst condition as calculated for
full load) for each phase to neutral
V
R
Y
B
R
Y
B
12. Operation of earth leakage units
mA
13. Operation of earth leakage test button
––
correct
correct
14. Polarity of points of consumption
––
correct
correct
15. Phase rotation at points of consumption for three-phase
systems
––
correct
correct
16. All switching devices, make-and-break circuits
––
correct
correct
Comments: ..................................................................................................................................................................................................................
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Comments on parts of the installation not covered by this report:
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Содержание ACADEMY T419
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