& Features of European-style switchgear:
The main features are two-way door opening and the use of gun casings as connection busbars. It has significant features such as small length, clear cable arrangement, and three-core cables do not require large-span crossovers. The cable connectors it uses comply with standards. Generally, rated current bolt-fixed cable joints are used.
European style switch
Using conditions:
, Surrounding air temperature: maximum temperature +℃, minimum temperature ℃
Relative humidity: daily average relative humidity: &%, monthly average Relative humidity &%,
, Altitude:
, Shockproof: Horizontal acceleration is not greater than .sec/, Vertical acceleration is not greater than ./, Inclination of the installation site: Not greater than degrees, The surrounding air should not be corroded The surrounding air should be free from corrosive or flammable gas, water vapor and other star pollution
There should be no place with severe vibration
European style opening and closing room
/>Selection
The air insulation type is mainly made of heat shrinkable material. This product is an early product and has been eliminated.
Rubber and plastic jacket is the main material used as a protective cable branch box. In long-term operation, internal interface separation and exposed end cracks are prone to occur, causing insulation and sealing damage, so the development of this product is limited.
A cable joint sealed cable branch box made of EPDM rubber as the main material. The material is hard and flammable, prone to creepage or arcing and easy to burn. At the same time, its moisture-proof, waterproof and anti-aging properties are also weak, and it cannot meet the requirements of long-term maintenance-free operation. It is a toxic substance and has adverse effects on the environment.
Electrically pluggable cable connector type cable branch box. my country's power supply system uses a three-phase transformer to supply power. It is impossible to pull and plug while the power is on at the same time. Such pulling and plugging will cause a serious deviation of the neutral point and form a two-phase power supply in a short period of time, seriously causing a large-scale power outage. , causing unnecessary economic losses to power supply and equipment.
Silicone rubber is used as the main material for cable joints and flood-proof cable branch boxes. Its material is soft, has high elasticity, high density, full insulation, good material sealing performance, and has the advantages of moisture-proof, waterproof, anti-aging, anti-flame retardant, corona resistance and long-term maintenance-free operation. Because the silicone rubber and the cable adopt an interference fit, the radial shrinkage is highly uniform, and the internal interface will not be separated due to thermal expansion and cold contraction, resulting in internal creepage breakdown. At the same time, there is a radial and lasting pressure on the cable body, making the internal interface The combination is tight and reliable. At the same time, silicone rubber is essentially a non-toxic material and is also beneficial to the environment.
Cable branch box with load switch breaking. Since this product can realize the functions of a ring main unit, and its price is lower than that of a ring main unit, it plays an important role in replacing the switch station outdoors. It is convenient for maintenance, testing and overhaul of branch lines, and reduces economic losses due to power outages, especially in Its advantages are even more apparent when it is difficult to build line corridors and distribution rooms.
European switchgear
Specifications, models and dimensions
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Factory direct sales DFW-12 cold rolled steel plate European style opening and closing station