The installation of form of whole set of 2.4.3 distribution ark is designed
Embed on distribution bin face plate directly exploration controller, consider proper inside ark place to secure transformer of leakage of electricity only (be in commonly advocate leave for nothing on end or lower end) , do not alter structure of distribution cabinet interior, need not increase alone exploration controller to install box, beautiful and convenient. Answer to raise a requirement clearly in the design, in construction graph joint hearing ends, consider the aperture that outfit leakage current embeds to explore controller on obligate face plate by factory of distribution ark whole set.
Watchful problem answers in setup of system of fire alarm of 3 leakage of electricity
Issue of unit of principal part of construction of system of fire alarm of 3.1 leakage of electricity
According to the characteristic of systems of afore-mentioned fire alarm of leakage of electricity, system of fire alarm of leakage of electricity has the independent character that comparative, but as inseparable as distribution system, construction of system of classify strong cable facilitates quite harmonious cooperate. Conversely, carry out a proof, classify fire control calls the police construction of systematic construction unit, dispute over trifles easily, harmonious cooperate difficulty, add its to not be familiar with control ark, more unfamiliar to transformer installation geometric ratio, construction quality assures hard. The system of fire alarm of leakage of electricity of 2 bus line of system of common to be being used directly individually fire alarm, communicating assorted premise adequately to fall with manufacturer of distribution ark whole set or construction unit, can merge into fire control calls the police construction of systematic construction unit. Current, whether does branch of fire control director need to have fire control major to contract to unit of construction of system of fire alarm of leakage of electricity aptitude, have not have limit clearly.
The construction of system of fire alarm of 3.2 leakage of electricity asks
National level " the installation of protector of movement of odd electric current and move " the installation ” of protector of electric current of the rest of “ of the 6th part points out GB13955 clearly: Protector of “ odd electric current is installed should type of ground connection of voltage of means of mature power supply, power supply, system and protective means. Time of electric current of ability of disjunction of the form of protector of odd electric current, rated voltage, rated electric current, short circuit, rated odd movement, disjunction should be satisfied be protected the requirement of circuit and electric equipment, answer in form of different systematic ground connection correct wiring ” .
Specifically, the installation of system of fire alarm of leakage of electricity should note the following problem:
1) Mark has leakage current warning apparatus when power source side and bear side, answer to install wiring by the regulation, must not receive instead.
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