Kamstrup MULTICAL 402, Техническое описание, Страница: 73 / 113

MULTICAL® 402
Kamstrup A/S · Technical Description · 5512-742_M1_GB_01.2016
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10.9 Danish regulations for the connection of mains operated meters
Installation to electric mains operated equipment for consumption registration ( www.sik.dk
The consumption of energy and resources (electricity, heat, gas and water) of the individual consumer is to an
increasing extent registered by electronic meters, and often equipment for remote reading and remote control of
both electronic and non-electronic meters is used.
, safety notification
electric services no. 27/09, February 2009).
General regulations for carrying out installations must be observed. However, the following modifications are
permitted:
•
If meter or equipment for remote reading or remote control is double-isolated, it is not necessary to run
the protective conductor all the way to the connection point. This also applies if the connection point is a
plug socket provided that it is placed in a canning which is sealable or can be opened with key or tool
only.
If meter or equipment used for remote reading and remote control is connected to a safety transformer mounted
in the panel and direct connected to the branch conductor, no on-off switch or separate overcurrent protection in
either primary or secondary circuit is required, provided that the following conditions are fulfilled:
•
The safety transformer must either be inherently short-circuit-proof or fail-safe
•
The conductor of the primary circuit must either be short-circuit protected by the overcurrent protection of
the branch conductor or short-circuit safely run.
•
The conductor of the secondary circuit must have a cross section of at least 0.5 mm² and a current value
which exceeds the absolute maximum current deliverable by the transformer
•
It must be possible to separate the secondary circuit, either by separators, or it must appear from the
installation instructions that the secondary circuit can be disconnected at the transformer’s terminals
Work on the fixed installation, including any intervention in the group panel, must be carried out by an authorized
electrician.
General information
It is not required that service work on equipment comprised by this notification as well as connection and
disconnection of the equipment outside the panel is carried out by an authorized electrician. These tasks can
also be carried out by persons or companies, who professionally produce, repair or maintain equipment if only
the person carrying out the work has the necessary expert knowledge.