Wiring duct,Cable Gland,Cable Tie,Terminals,RCCN

The installation of components
1, the premise: all components should be installed according to the provisions of the installation of the factory installation. Applicable conditions: the need to arc off the distance, the need to remove the arc gate space, etc., for the installation of manual switches, the switch must ensure that the arc of the operator is not dangerous.
2, the assembly before the first look at the drawings and technical requirements.
3, check the product model, component model, specifications, quantity and the drawings are consistent.
4, check the components for damage.
5, must be installed as shown

6, the assembly sequence should be from the board front, from left to right, from top to bottom. 7, the same type of product should ensure consistency of assembly. 8, the panel, the door on the element centerline height should meet the requirements:

Assembly products should meet the following conditions:
① easy to operate. Components in the operation, should not be hindered by space, should not have the possibility of touch the charged body.
② easy maintenance. Can be more convenient to replace components and maintenance connections.
③ a variety of electrical components and devices of the electrical clearance, to ensure that the first and second line installation distance.
(1) assembly of the fasteners and metal parts should have a protective layer, the screw through the hole, the edge and the surface of the burr, the tip should be polished and then coated with conductive paste.
(2)) For fastening of the bolts, the appropriate tool should be selected without damaging the protective layer of the fastener and paying attention to the corresponding torque.
(3) the main circuit above the components, the general reactor, the transformer needs to be grounded, the circuit breaker does not need to ground.
(4) For the installation of heat generating elements (such as tubular resistors, heat sinks, etc.), the heat dissipation shall be taken into account and the installation distance shall be in accordance with the requirements of the components. Tubular resistors rated at 75W and above should be mounted on a vertical, vertical installation.
(5) All electrical components and accessories, should be fixed on the bracket or floor, not hanging in the electrical and wiring.
(6) wiring surface of each component near the signs, marking should be consistent with the drawings. The sign must not be fixed on the component body except that the component itself is accompanied by a sign for filling.
(7) The label shall be complete, clear and firm. Label paste position should be clear, eye-catching.

A circuit wiring
1, a wiring should try to use rectangular copper busbar, when using a rectangular bus is difficult to process or current is less than or equal to 100A optional insulated wire. Grounding copper busbar cross-sectional area = electric cabinet into the busbar single-phase cross-sectional area × 1/2.
Ground busbar and ground terminal:
2, busbar bus should be selected according to the design requirements, the main line cabinet and contact cabinet bus by bus selection, branch bus selection should be automatic air switch release rated current, such as automatic air switch without release , Then the rated current value of its switch shall prevail. There are several branch circuits for the automatic air switch. If the branch circuit is also equipped with automatic air switch, the branch bus section is selected according to the above principle. If there is no automatic air switch, such as only the knife switch, fuse, low-voltage current transformer, then the low-voltage current transformer side of the rated current value to select the branch bus section. If these are not, but also according to the contactor rated current selection, such as contactor is not, and finally by the fuse fuse rated current value selected.
Main circuit alignment:
3, copper bus carrying capacity to check the relevant documents, PVC insulated wire in the trough, or wire into the beam when walking, or higher protection should take into account the margin margin.
4, the bus should avoid the arcing area.
5, when the exchange of the main circuit through the formation of closed magnetic circuit of the metal frame, the three-phase bus should be in the same box through the hole. Wiring is not standardized, must enter the trough of the large cable are stripped, all the wire into the trough.
6, cable and cabinet metal friction, the need to add rubber gasket to protect the cable.
7, cable connected to the panel and the door, you need to add plastic pipe and install the trunking. Cabinet outlet part to prevent sharp edges cut insulation layer, must be added plastic jacket.