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Safety test
47. Electricai Nfety test
According to the German taw on safe machine opera t ion of
as the official rules in electronics and are the basis for the regulations for testi n g electrical safety of
technical
devices.
The required electrical tests are established in the regulations for repair. modifica
tion and testing of used electrical appliances (VDE 0701 issue 10.86) par.
We are obliged to perform a test in accordance with VDE 0701 on every electrical appliance after
repair. In European foreign countries, there are simil a r regulations in force which are largely identical
with the requirements of the 0701.
48. Electricai Nfety test with ABB Metrawatt M 5013
I) Mains voltage t"t: Volt
e
For all following tests insert plug of
Set knob for measuring range at "250 v·
e
the re.spective value
•
Touch contact field, which is located a bit t o the right just below the knob for the measuring range,
with your finger, thus checking the ground lead of the mains. Signal lamp "PE" just above the
contact field will light up only In case the ground lead Is out of order.
Insert plug of sewing machine Into the mains socket of
•
e Run the machine.
e
Meter
reading: 230 V +/-
e Measuring appliance M 5013 can only be used with mains voltages from 207 V to 253 V
(230 V +/-
10%).
11) Appliance current tHt: Amper-e • A
Plug of sewing machine remains In ma ins socket.
e
e
Set knob for the measuring range at 16 A (fig. 48a).
• Run the machine.
e Meter reading: 0.5 A maximum.
Ill) Insulation rMistance: M Ohm • M
Insert plug of sewing machine in tester socket.
e
• Use clamp to attach test lead
• Set knob for measuring range at "20 M Ohm" (fig. 48b).
• Meter reading: minimum
• With meter readings higher than 20 M Ohm, appliance M 5013 displays the figure 1 1 1n these cases,
the remark "Insulation resistance higher than 20 M Ohm" must be recorded in the testing certificate.
IV) Stray current: Milliampere
• Sewing machine plug remains in tester socket.
• Use clamp t o attach test lead of testing appliance M 5013 to presser bar.
• Set knob for measuring range at "20 mA" (fig. 48c).
e Meter reading: maximum 0.50
V
•
ABB
Metrawatt M 5013 in the grounded mains socket.
(fig.
1
00.0).
(230
V +/-
10%
testing appliance M 5013 to presser bar.
of
2
M Ohm
mA
•
mA.
24-6-86,
the VDE-regulations are regarded
48). If there is mains voltage, the LCD display
Metrawatt M 5013.
ABB
4.
shows
1 1 1
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