First, the scope of products and conditions of use meter box including single-phase two parts of the table box and three-phase meter box, suitable for AC 50HZ or 60HZ, rated voltage to 200V, 380V, 693V, and the amount of passenger the current 10A225A the supply system, for single-phase energy and power energy measurement and control management. Conditions of Use: 1, ambient temperature -40 to +80, 24-hour average temperature does not exceed +35. 2, the air is clean, the relative temperature does not exceed 80% at 40 hours, low temperature allows a higher relative temperature. Second, the products are mainly technical number 1, the main bus rated quality PC meter boxes. First, the scope of products and conditions of use meter box including single-phase two parts of the table box and three-phase meter box, suitable for AC 50HZ or 60HZ, rated voltage to 200V, 380V, 693V, and the amount of passenger the current 10A225A the supply system, for single-phase energy and power energy measurement and control management. Conditions of Use: 1, ambient temperature -40 to +80, and within 24 hours the average temperature does not exceed +35. 2, air cleaner, the relative temperature at 40 hours does not exceed 80%, and at lower temperatures, allows a higher relative temperature. , Product technology 1, the main busbar rated current ln: 225A-10A Main busbar rated short-time withstand current lcw: 30KA 3 Insulation resistance: not less than 20M 4, rated insulation voltage Ui: 800V 5 Frequency: 50HZ or 60HZ 6 security protection class IP: 30 three product installation and use of an installation, carefully check the integrity of the various components of the meter box. 2 meter box should be mounted vertically, the angle of inclination. Shall be not more than 53 installation location should choose non-violent vibration, shock, and not enough to local corrosion of electrical components. Meter box lock material impatience strong bases, oxidizing acids and amines, ketones, the dissolved in oxidation diameter class and aromatic deep agent, so should avoid contact with these chemicals or used together. 5 should be avoided during use sharp objects and hard objects collide scratching the surface of the meter box 6 meter box installed should try to choose a cool, dry place, avoid the sun for a long time direct exposure to prolong the life of the energy meter.