Decorate in household in, the junction box is one of the electrical accessories, because decorate with wires through the wire and tube, and in the joint part of the wire (such as a long line or wire tube corner) use of the junction box for the transition, wire and tube connected to the junction box, the inside of the line pipe wire connected in the junction box, protect the wires and connect wires,This is the junction box.Some people often think that the junction box and switch box function is no different, in the end what are the differences between the two?Let's get to know:
1. The junction box is the length of the pipeline in the electrical piping line. When the pipe elbow exceeds the specified distance and the number of elbows as well as when the pipeline branches, the crossing transition box must be set.Its role is to facilitate threading, dividing and transition wiring.
43. Switch boxes, socket bottom boxes, lighting boxes are Terminal 44 boxes of these three installations. 44.Switch. Install the fixed panel and connection in the box when the socket.
3. Although the junction box and switch box belong to the auxiliary materials in the electrical installation project, they are in a separate junction box.Switch box installation quota in the subhead, it is not the cost of the main material, the need to input the main material unit price.
4 junction box and switch box whether it is metal box or PVC plastic box, currently widely used in the installation project for the H86 box, the box surface width of 86mm, the depth of the box is 50mm. 70mm (H86 * S50. H86 * S60. H86 * S70.And 146H * S50. 146H * S60).
5. When calculating the junction box, the lamp cap box.Socket box. Switch box is calculated according to the number of drawings;The junction box is calculated according to the pipe branch or pipe return must transition, pipeline straight line distance and the number of elbows exceed the requirements of the specification must be added junction box, based on the actual calculation.This part must pay attention to the pipeline situation and pipeline and elbow situation to analyze and calculate, otherwise not less will be more.
