Bjx51 explosion-proof junction box installation and maintenance methods

In use, electrical equipment must be connected to a power supply network via wires or cables to form a system to perform its functions. However, the connecting wire or cable cannot be infinitely long, and there are many places in the connection process that require wire tapping in series and in parallel. This will inevitably cause joints to be exposed, which will easily lead to accidents. Explosion-proof junction box is a special equipment used in all kinds of high-risk places. Compared with civilian junction box, it is a junction box with explosion-proof function through various explosion-proof transformations. The use of aluminum alloy die-casting or stainless steel welded, explosion-proof anti-corrosion junction box according to the classification are: According to the functional material form is divided into: Intrinsically safe explosion-proof junction box, aluminum explosion-proof junction box, stainless steel explosion-proof junction box, steel explosion-proof junction box; According to the use structure is divided into: wall-mounted explosion-proof junction box and vertical explosion-proof junction box.

Explosion-proof junction box products are products that are manufactured to solve such problems in order to further ensure safe production. Such products include junction boxes, junction boxes, thread boxes, hanging boxes, distribution boxes and other products, and its shell is mainly made of cast aluminum alloy. According to requirements, there are a lot of incoming and outgoing lead-in devices, and the boxes are equipped with connecting terminals for connecting or tapping. Most of these products are made of explosion-proof or increased safety type, the size of the large or small, the difference is greater, explosion-proof grade up to IIC level.

Explosion-proof junction box correct installation and maintenance methods: Explosion-proof junction box should be checked before installation of the technical data on the nameplate is consistent with the actual use; explosion-proof junction box inside and outside grounding must be good and reliable; check all fasteners are loose; installation Ensure that the seal and the cable must not be loosened and that the power supply must be disconnected before maintenance and inspection. Specific details will be provided by the manufacturer of the explosion-proof junction box.

Before installation, check whether the technical data on the nameplate is in accordance with the actual situation. Check whether all the fasteners are loose. If there is looseness, tighten it. The inside and outside of the connection box must be grounded. The cable must be passed through during installation. Sealing rings, metal washers, and compression nuts are used to ensure that the seals and cables are not loosened. Unused terminals are sealed with seals and metal gaskets; the power supply must be disconnected before opening the cover for maintenance and inspection.

This series products are the block and random copolymers made from allyl alcohol, EO and PO. And they are main materials for synthesizing polyether polysiloxane. Polyether modified polysiloxane can dissolve in the water and oil, and it is easy to regulate. It has all the excellent performances of the traditional polysiloxane product, in the meanwhile, it has the function of the lubricating, softening, good spreading and emulsification stability offered by polyether chains. And it can be used as PU foam stabilizers, Textile Auxiliary, oil field demulsifier, cosmetic auxiliary, coating leveling agent, detergent, defoaming agent and emulsifier etc. the copolymer of the polyether reacting with hydrogen containing silicone oil can be applied as PU foam stabilizers , textile auxiliary, oil field demulsifier and emulsifier etc..

Polyether Polyols

Polyether Polyols,Polyurethane Foam,High Pure Polyether Polyol,Polyether Polyol For Refrigerator

NINGBO LUCKY CHEMICAL INDUSTRY CO. LTD , https://www.chinaluckychem.com