Meter box inside wiring must meet the standards, first understand the meter box box box structure and the introduction of a wiring problem. Meter box cabinet structure must be closed, and there is good ventilation design, vents should have rain function and set the meter box fence professional manufacturer, measures should be taken under abnormal circumstances external foreign objects into contact with live conductors prevented. Meanwhile meter box wiring conductors shall comply with the requirements of quality standards, wiring accurate and reliable electrical connection at the same time good contact wires tidy. Insulated copper wire used in the middle there should be joint single-phase meter box factory, voltage, current loop wire terminal numbers should be installed in line with the drawings, in addition to the order to properly wire. All electrical switch on the meter box transparent, flexible and reliable should be no significant noise meter box factory, cable knots and terminal should be no loosening meter box factory report, the moving contacts at the wire cable knot should be no breakage . Transparent meter box to replace the fuse, the fuse should be made to the loop current and the current match. Transparent meter box control voltage on different properties box, when maintenance must distinguish circuit to prevent short circuit accidents. Disconnect the power and check the control cabinet rack is a reliable grounding, and the grounding resistance of less than 4Ω. Use a soft brush or hair clear panel plug-ins and all parts of the electromagnetic switch dust, and check the control box electrical switch contact status, exposure, movement coil outer insulation and mechanical parts is reliable. pc meter box manufacturers, Jinyang Electric (certification), the meter box factory by Leling Jinyang Electric Co. LELING Jinyang Electric Co., Ltd. (www.dzjydq.com) is a leader in Dezhou, distribution equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinyang Electric in leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinyang Electric.