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22.06.20
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normal domes
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as well as for
least 10m apa
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environments
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ages above 100
surements on d
pment/circuits
en houses and
ing, pool-pump
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in
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env
llution deg
10-1 specifies
es are necessar
on against the
lation and the
nvironment the
e/installat
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est. Transients
rike on a powe
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ly connected to
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measurements
art from of a CA
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ble for measur
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gnals, circuits b
directly connec
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liances and cir
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nvironment. E.
distribution bo
ble for measur
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and circuit bre
uitable for:
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distribution eq
outside or rem
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p...
only suitable f
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gree
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ry to ensure sa
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ion catego
the risk and se
are short-lived
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61010-1 are:
ble for measur
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able for measu
connected to t
nt, provided th
T IV-environm
table for meas
s on (fixed) mo
AT IV-environm
(fuse boxes, l
table for measu
the primary su
ents on equipm
ound) a CAT IV
nce with EN 61
estrictions in us
n the environm
rements up to
h are not direc
behind isolating
cted to mains p
appliances wh
rcuits directly c
e circuit is at le
g. household a
oard …
rements up to
distribution bo
or poly-phased
s, electric oven
eakers).
uipment and o
mote from the
garages , or c
for measureme
s of pollution e
afety. Harsher
h is to be foun
perties. The po
be used.
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ory
everity of trans
d bursts of ene
rements on pro
, e.g. electroni
urements in CA
the mains by m
hat the circuit i
ent. E.g. house
urements in CA
ono- or poly-ph
ment, and for m
ighting circuits
uring in CAT I-
upply level.
ment for which t
V meter
must
1010-1 installat
se apply that a
ment of use. Re
o 1000V on:
ctly connected
g transformer…
power, but limi
hich are connec
connected to th
east 10m apart
appliances, por
o 600V:
oards (distribu
d appliances an
ns, lighting circ
outdoor installa
domestic envir
circuits using u
ents
up to 600
nvironments, f
environments
d in a certain e
ollution degree
sient overvolta
ergy induced in
otected electro
ics circuits, con
AT I-environme
means of a plug
s at least 10m
ehold applianc
AT I- and CAT
hased applianc
measurements
s, electric oven
, CAT II- and C
the supply cab
be used.
tion category C
are related to v
fer to the table
to mains powe
…
ted to:
cted to the ma
he mains in a n
t from a CAT II
rtable tools, lig
tion boards be
nd circuits exc
uits, bus bars,
ations including
ronment e.g. c
underground w
0V
in
CAT III
for which differ
require more p
environment de
rating of the D
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ntrol signals…
ents and mono-
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apart from a C
es, portable to
II-environmen
ces which are a
in or on
s).
CAT III-
bles run outdoo
CAT III 600V /
voltages and
e above.
er, e.g. electron
ins by means o
normal domest
I- or 20m apa
ht circuits at m
ehind meter bo
ept in CAT IV-
low-voltage
g meter boxes
ircuits in sheds
iring e.g. garde
and
up to 100
rent protective
protection, and
epends mainly
DVM indicates i
v. 01
n nv
g.
ich
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ors
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