Introduction
European cable branch box is a device widely used in recent years for cable-based projects in power distribution systems. Its main features include bi-directional door opening and the use of butt-joint bushings as connecting busbars. It has significant advantages such as a compact length, clear cable arrangement, and no need for large-span crossing of three-core cables. The cable joints used in this device comply with the DIN 47636 standard. In general, rated current 630A bolted fixed connection cable joints are used.
Model meaning
Use conditions
>Ambient temperature: max +40℃, min -30℃;
>Wind speed: equivalent to 34m/s (not above700Pa);
>Humidity: daily relative humidity average not above 95%; monthly relative humidity average not above 95%;
>Shakeproof: horizontal acceleration not above 0.4m/s, vertical acceleration not above 0.15m/s;
>Gradient of installation place: not above 3°;
>Installation environment: surrounding air should not be obviously polluted by corrosive or inflammable gas, and water vapor, etc.; there is no violent vibration at the installation site.
Note: please negotiate with the company if the ordering conditions of this product exceed above regulations.
Technical parameters
Rated voltage | 12kV |
Rated current | 630A |
Dynamically stable current | 50kA/0.3s |
Thermally stable current | 20kA/3s |
1min power frequency withstand voltage | 42kV |
15min DC withstand voltage | 52kV |
Lightning impulse withstand voltage | 105kV |
Box protection level | IP33 |
Foundation Drawing of European Cable Branch Box