hager univers FW, Manual

Page: 120 / 136

Inspection and maintenance
Testing intervals for recurring tests
118 Technical changes reserved
8.1 Testing intervals for recurring tests
In the interest of ensuring a high level of operational safety, commercial
switchgear and controlgear assemblies should be tested at least every 4 years by
an electrically skilled person to check that it is in perfect working order
(recommendation of the German Social Accident Insurance regulation 3 (DGUV)
(formerly BGV A3)). National or insurer regulations may extend or shorten the test
interval. Shortened intervals may be defined to ensure proper functionality and
safe operation due to:
-
the demands on the operating equipment,
-
external influences,
-
changes to the operating parameters and ambient conditions,
-
special kinds of compartments and systems according to DIN VDE 100 group
700,
-
in the event of complicated operating conditions, special circumstances,
such as shocks and exposure to moisture,
-
the specifications of the device or operating equipment manufacturer set
forth in their instructions,
-
according to applicable national standards and regulations.
Hager recommends performing a test at least once a year:
-
a visual inspection (external inspection),
-
switching operations of individual protective devices and switching devices
(operation of RCD test buttons every six months),
➢
Document all tests, for example, in an inspection book.
Recommended recurring tests
System/equipment Test interval Type of test Inspector
Electrical systems and
stationary operating
equipment 4 years For perfect working or-
der Electrically skilled
person
(with testing expe-
rience)
Electrical systems and
stationary operating
equipment in operating
sites, special kinds of
spaces and systems ac-
cording to DIN VDE 100
group 700 1 year For perfect working or-
der Electrically skilled
person
(with testing expe-
rience)
Enclosure, jacketing and
protective devices 1 year
Recommen-
dation External visual inspec-
tion
Switching opera-
tion/functional testing Electrically skilled
person
(with testing expe-
rience)
RCD (RCCB) Every six
months Operate test switch Ordinary person