The explosion-proof power distribution box is suitable for applications such as explosion-proof power distribution boxes and explosion-proof lighting distribution boxes. The explosion-proof distribution box products adopt a composite structure, the switch boxes adopt flameproof structures, and the bus boxes and outlet boxes adopt an increased safety structure. Cast aluminum alloy shell, built-in high breaking miniature circuit breaker, with overload short-circuit protection and can increase leakage protection and other functions as required. Module structure, a variety of loops can be freely selected combination. Special requirements can be tailored, pipe or cable wiring can be. skills requirement:
1. All the electrical components in the distribution cabinet meet the IEC309-1 and IEC309-2 and DINEN60309, CEE17 international standards, and GB11918-2001 and GB11919-2001 standards. The electrical switch adopts ABB products, and the terminals adopt Finikes products. Sockets use Mennekes products.
2. The structure of all distribution boxes, the installation of electrical components, and the layout of circuits must be safe, reliable, easy to operate, and easy to maintain.
3, distribution box should be equipped with locks and keys.
4. The distribution box adopts the lower entry line and the lower exit line. It has a knock-out hole. The size of the knock-out hole is determined according to the cable type in the drawing and is equipped with a sufficient number of rubber washers.
5, distribution box box protection class: IP55 (anti-acid anti-corrosion waterproof).
6. The distribution box adopts stainless steel box (the stainless steel is Baosteel 304 or more), the color is stainless steel, and the box thickness is not less than 2.0mm.
7. The operating switches, instruments and sockets shall be arranged on the front panel of the box/cabinet for ease of operation; the housing and the partition of the socket box shall include the locking devices of the door, and the socket parts shall have sufficient mechanical strength to withstand normal use. External forces encountered; anti-corrosion measures should be taken to suit the plant environment.
8. The copper bus shall be used for the busbars, and the copper wire shall be used for the busbars to the outlet terminals and outlets. The terminals, cabinets and screen inner external conductor terminals must meet the normal operating current, the copper row's current carrying capacity should be more than 1.5 times the rated current carrying capacity, and can withstand no less than the short circuit withstand current of the electrical components inside the cabinet. Sufficient space for the wiring, the air switch inside the box, and the disconnector must meet the requirements for dynamic and thermal stability.
10. The electrical components in the distribution box/cabinet shall comply with their respective regulations and shall maintain their electrical clearances and creepage distances under normal conditions of use; the exposed live conductors and terminals in the box shall have electrical clearances and creepage distances. The impact withstand voltage should at least comply with the relevant regulations of the electrical components directly connected to it.
Silicon Carbide Graphite Crucible
silicon carbide Graphite Crucible is a container applied to hold metal for smelting in a furnace and it can withstand the extreme temperatures encountered in smelting metals. The crucible material must have a much higher melting point than that of the metal being melted and it must have good strength even when white hot.Graphite crucible can withstand the high temperature, and has good resistance to chemical erosions and thermal shock. Especially graphite crucible is ideal for the melting of aluminum, copper and etc.
Sic crucible, Silicon Carbide (SiC) Crucibles, Silicon carbide crucible,Graphite & SiC Melting Crucible,Carbon Bonded Silicon Carbide Crucibles
Huixian City Mishan Graphite Jip Co., Ltd. , https://www.msgraphitemold.com