Electrical equipment box is a modern factory, one of the common company installed the necessary equipment, which, when installed, must follow the principle of following the electrical box installation: 1, each household household distribution box should be located leakage protection, leakage no more than 30mA operating current lifting equipment installation, there is overload, overvoltage protection, and the separation of the number of road outlet, respectively, to control lighting, air conditioning, sockets, kitchen, bathroom, etc., which loop should ensure normal load lifting equipment offer Each sub-route capacity must not exceed the capacity of the line into the family. 2, the switch should be installed for the 1.3m height and frame distance 150mm-200mm lifting equipment, socket height of not less than 200mm, the same panel in the same area may not have clear height, line box margin should lead to 150mm. kitchen splash socket should be chosen, at least above the countertop installation height 300mm. 3, ground protection should be ensured between the wire and wire insulation resistance value should be between greater than 0.5MΩ, metal wire, metal hose, metal pan distribution boxes have ground fault protection; height of less than 2.4m metal ceiling and kitchen fixtures must be grounded metal casing to protect construction crane safety supervision and management In order to strengthen the provisions of the construction crane safety supervision and management, preventing and reducing accidents, protect people's lives and property safety, based on "construction safety regulations", "Special Equipment Safety Supervision Regulations", "Security production license regulations "professional lifting equipment, enactment of this provision. The second construction crane rental, installation, removal, use and supervision and management, application of this provision. The term construction crane refers to incorporate special equipment catalog, housing construction sites and public works construction site installation, removal, lifting machinery used. Article building department of the State Council of China construction crane rental, installation, removal, use of supervision and management. Local people's governments at or above the county building department for building the administrative area of ??lifting equipment rental, installation, removal, use of supervision and management. Article Rent construction crane rental and use of the unit purchase, leasing, construction crane used should have special equipment manufacturing license, product certification, manufacturing supervision and inspection certificate. Article rental units before construction crane rental for the first time, since the purchase of used construction crane construction crane in front of the unit is first installed, it should support the construction crane special equipment manufacturing license, product certification and manufacturing supervision Inspection Certificate to commercial registration of the unit local governments above the county level building department filing. Article rental unit shall construction crane lease contract signed, clearly lease security responsibilities of both parties, and issue construction crane special equipment manufacturing license, product certification, manufacturing supervision and inspection certificate, registration certificate and a self-test compliance certification submitted to the installation instructions. Specialized lifting equipment, lifting Lu quality assurance (certified), Putian lifting equipment provided by Shandong Lu mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) Shandong Jinan, industrial maintenance, installation of leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lifting leadership in Shandong Lu staff warmly welcome all inquiries negotiations to create Shandong Lu lifting a better future.