GB
INSTRUCTIONS FOR USE
To Prove Continuity.
(a) Connect the red, yellow and blue leads of the indicator to the phases R.Y.B.
respectively, switch on the supply and, if continuity is complete, the three top neons
of the indicator will light as shown in Fig (1) or (5). One of the two bottom neons will
also light, but should be ignored for this test.
Note: Neutral and earth connections are not tested. The tests will not simulate your
normal usage load.
To Ascertain Faulty Line if Continuity is not Proved.
(b) The faulty phase is indicated by one of the three top neons lighting, e.g. should
the neon marked R light, it indicates that the Red line is faulty (see Fig 2). Similarly
Yellow and Blue line faults are indicated by their respective neons being lit (see
Figs 3 and 4).
When the fault has been corrected, phase continuity will be indicated as Fig (1) or
(5).
To Ascertain the Sequence of Phase Rotation.
(c) The bottom two neons of the tester are used for this test. First ensure that
continuity is complete as test (a). If the phases arise at their source in the order red,
yellow, blue, the neon R.Y.B. will light as Fig (1), or the neon marked R.B.Y. if the
order is red, blue, yellow (Fig 5).
To Prove Connection of Colour Coding.
(d) Connect the leads as in test (a) to supply connections at incoming distribution
box when the instrument will indicate the phase sequence either as Fig (1) or (5).
If the installation is correct, a similar test at any other distribution box should
produce the same indication. If at any one test point the phase sequence is
reversed, it is obvious that one or more of the phase colours have been cross
connected. To rectify this, proceed as follows:-
With the instrument in circuit withdraw a fuse (say on the red line at the last test
point prove correct. The indicator will show which lead is connected to the red line,
i.e. if the neon marked Y remains lit, this means that the yellow lead of the tester is
connected to the red phase of the supply. Having identified the red supply phase
(which is wrongly coded as yellow), interchange the yellow instrument lead with the
red instrument lead. Replace the fuse and note the indication of the instrument
R.Y.B. or R.B.Y. If the correct indication is given, the instrument lead colours should
correspond to the phase colours. Withdrawal of the blue and yellow fuses in turn
will be conclusive proof of correct identification. The phase connections may then
be corrected as appropriate.
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indicación del instrumento R.Y.B. o R.B.Y. Si se observa la indicación correcta, los
colores de los conductores del instrumento deberían corresponder con los colores
de las fases. La retirada de los fusibles azul y amarillo por turno deberá demostrar
de manera conclusiva la identificación correcta. Las conexiones de fase podrán
corregirse entonces según sea apropiado.
Para identificar colores de fase en conductores gastados, descoloridos o sin
marcar.
(e) Si se conoce una codificación de color de fase en la caja de distribución, pero
no puede ser identificada en el punto de prueba, proceda como sigue:-
Conecte los conductores del instrumento en las tres fases bajo prueba (el orden no
importa), y asegure que la continuidad de fase sea completa como en la prueba
(a). Con continuidad en todas las fases, proceda como en la prueba (d).
R
Y
B
R
Y
B
R Y B
R B Y
R Y B
R B Y
Figura 1. Continuidad
Figura 2. Línea roja
demostrada con la
averiada.
secuencia de fases
roja, amarilla y azul.
Neón encendido.
Nota 1: El probador puede ser usado para comprobar suministros trifásicos con
voltajes de fase a fase de 100V a 600V (pico), y frecuencias de 40Hz a 60Hz.
Nota 2: Antes y después de usar el probador, compruebe que funciona
correctamente con un voltaje conocido. El probador y los conductores deberán ser
inspeccionados de manera periódica por si tienen el aislamiento deteriorado u
otros
defectos. Si se observa cualquier daño, el probador no deberá ser usado.
Nota 3: Asegure la integridad de la conexión a neutro y/o a tierra antes de utilizar
el suministro.
R
Y
B
R
Y
B
R Y B
R B Y
R Y B
R B Y
Figura 3. Línea
Figura 4. Línea azul
Figura 5. Continuidad
amarilla averiada.
averiada.
demostrada con la
secuencia de fase roja,
azul y amarilla.
Neón apagado.
R
Y
B
R Y B
R B Y
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