1) Before the maintenance, the power switch of the previous stage must be disconnected and the power failure sign must be hung. Then use the electroscope to check that the equipment being repaired has been powered off before repairing;
2) When repairing, two people must be present, one maintenance, one person supervision;
3) The maintenance personnel must be a professional electrician who is familiar with the power distribution unit;
4) Maintenance personnel must wear protective equipment and use electrical insulation tools
5) The replacement of electrical appliances must be consistent with the original specifications, and it is forbidden to use unqualified substitutes;
6) During maintenance, the original distribution equipment wiring shall not be arbitrarily changed, and the original switch electrical equipment shall not be arbitrarily removed;
7) At the end of the maintenance, it should be disconnected from the power distribution device, and then the power supply side starts to turn on the power step by step. After confirming the power supply with the power detector, the power is turned on again.
8) At the same time of maintenance, remove the power-off sign of the upper-level power switch and hang it.
Door panel: door panel is made of stainless steel 304 with no frame. Core materials are paper honeycomb, aluminum honeycomb, PU, EPS and etc. The installation sites of door lock, door closer and hinge are reinforced with square tubes of more than1.5mmthickness which are compression moulded by special technology.
Door frame: it is made of completely stainless steel 304. The connection types with wallboards are double-clip type and aluminum connection. The former is applied mostly to machine made wallboard and the latter hand made wallboard. The accessories are double window and lift type sweeping bar. The lock can be famous door lock or the owners can select lock brands themselves.
Specification: common sizes 800X2100, 900X2100, 1500X2100 or1800X2100, can customize to customers` requirements, the materials can be selected according to customers` requirements such as306Lor other special materials.
Features: the stainless steel 304 door we produced are of elegant appearance, sturdy and durable, acid and rotting resistance and thermal insulation. It is the first choice for high-end projects at home and engineering concerning foreign affairs that requires for anticorrosion and high quality such as electronics factory and food factory
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffreezerdoor.com