The following distribution 16a single phase breaker lines or terminal lines of equipment in civil buildings shall be equipped with leakage current protectors:
① Socket circuit.(2) electric facilities such as bath lighting, water lighting and billboard lighting.(3) medical bath, electric massage physiotherapy and other rehabilitation facilities.(4) leakage protection against electrical fire at the power supply into the line.
The TN system should be installed at the end of the distribution line when leakage protection apparatus is used to prevent indirect electric shock injury.The TT system can be installed at the low voltage supply inlet.When the electronic leakage protector is selected, the auxiliary power supply is supplied by the power supply controlled by the leakage protection appliance, IN<30mA leakage protection appliance, when the power supply voltage drops to 50V, it should be able to tripping automatically in case of danger.In 0.85~ 1.1un, leakage protection electric should work normally.In order to prevent the danger of personal electric shock, the electric leakage current protection apparatus set in the indoor normal environment, its action current is not more than 30 mA, the action time should not be more than 0.1s.The following facilities should not be installed leakage current protection of electric equipment, installing leakage alarm signal when necessary, emergency lighting, security lighting, lighting, obstacle lights on duty, communications equipment, security equipment, fire pumps, spray pumps, exhaust fan, positive pressure blower, fire elevator, drainage pumps and suddenly loses power would endanger public safety or cause huge economic loss and personal injuryEquipment.
Low-voltage 16a Single Phase Breaker have a variety of protection functions (overload, short circuit, undervoltage protection, etc.), adjustable action value, high breaking capacity, convenient operation, safety, etc., so they are widely used at present.
The core of the application of the intelligent technology in the intelligent circuit breaker is the multifunctional trip unit that integrates protection, measurement and monitoring. It is mainly composed of a microprocessor unit, a signal detection and acquisition unit, a switch input unit, a display and keyboard unit, It is composed of several parts such as output unit, communication interface and power supply.
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