First, standard requirements
1, design specification for low voltage distribution
6.4.1 when the building power distribution system should be set up to meet the following conditions, the residual current monitoring and protection of electrical appliances, the action in the signal or cut off the power supply:
(1) the distribution line insulation damage may occur when grounding fault;
Grounding arc caused by grounding fault may cause fire hazard.
2, fire protection code for architectural design
10.2.7 the electric fire monitoring system should be set up for the non fire power load of the following buildings or places:
(1) the construction height is greater than 50m, class C workshop and C warehouse, outdoor fire water consumption more than 30L/s factory (warehouse);
(2) A class of high-rise civil buildings;
(3) more than 1500 seats in a cinema, theatre, seating more than 3000 stadiums, any floor area of more than 3000m2 stores and exhibition building, province (city) level and above, radio and television, telecommunications and finance, financial buildings, outdoor fire water than other public buildings 25L/s;
(4) national key cultural relics protection units or brick wooden structure of ancient buildings.
3, code for electrical design for civil buildings
13.12.1 in order to prevent electrical fire, the following provisions should be met when the following distribution lines of civil buildings are set up with fire-resistant residual current action alarm system.
(1) the automatic fire alarm system for distribution line protection object classification is building super, should set the fire alarm system for residual current action;
(2) in addition to the housing, the fire automatic alarm system protection objects are classified as the first grade distribution lines of the building, and the fire residual current action alarm system should be set up.
4, the code for the design of the shop building
7.3.16 for large and medium-sized shop building business hall, in addition to the fire equipment and emergency lighting, power distribution line circuits should be set up fire alarm system. The residual current action (which is the specification of a strong)
5, standard for electrical design of financial buildings
17.4.1 special grade, the following parts of the first class fireproof financial building should be set up by electric fire monitoring detector:
(1) special air conditioning power facilities financial lines, power terminal distribution box, lighting and socket terminal distribution box;
(2) weak electric machine room, duty room, shopping mall, kitchen and restaurant, viewing facilities, entertainment facilities, exhibition facilities and other areas of lighting and outlet distribution boxes.
17.4.2 Electrical fire monitoring detectors shall be installed in the special air-conditioning power supply trunk line, power terminal distribution box, lighting and socket terminal distribution box for the financial facilities of the secondary fire prevention financial building.
Electrical fire monitoring detector 17.4.3 financial facilities should be power supply room temperature detection function.
Two, the provisions of the setting
1. electrical fire hazard should be taken in accordance with the nature of the building, and the electric fire monitoring system should be set up for the protection object grade.
2. the electric fire monitoring system should be composed of the following parts or all monitoring devices:
(1) electrical fire monitoring equipment;
(2) the residual current electric fire monitoring detector;
(3) the thermometer electric fire monitoring detector;
(4) linear temperature sensing fire detector.
3, an independent detector or a non independent detector should be determined according to the size and needs of the project.
4. According to the specific condition of electric laying and electric equipment, the form and installation position of electric fire monitoring detector should be determined.
5. When there is no fire control room and the number of electrical fire monitoring detectors is not more than 8, the independent electric fire monitoring detector can be used.
6, establishment of electric fire monitoring system should not affect the normal work of the power supply system.