The difference Terminal wiring and welding (pressure) copper terminal

When to apply the external wiring with terminal and without terminal respectively? Is it 6 square below when apply? Is that generally set terminal or no terminal? Welding (pressure) copper terminal when to apply.

1, terminal and no terminal external wiring is to connect the wire to the terminal board terminal post, the quota of work is: opening, inspection, installation, meter disassembly, test, alignment, sleeve insulation tube, pressure welding terminal, wiring;

2. Whether the box is covered with terminals or without terminals depends on the design or construction requirements. If the installation cost of the box includes wiring and terminals, such cost shall not be taken;

3. The section area of the conductor in the quota is 2.5 and 6;

4. Acceptance code for construction quality of building electrical engineering GB 50303-2002 is as follows:  The general project  ,The connection between the core wire and the electrical equipment shall meet the following requirements:

Single-strand copper core wire and single-strand aluminum core wire with a cross-sectional area of 10mm2 or less are directly connected with the terminals of equipment and appliances;

Multi-strand copper core wires with a cross-sectional area of 2.5mm2 or less shall be connected with the terminals of equipment and appliances after tightening tin lining or connecting terminals;

Multi-strand copper core wire with a cross-sectional area greater than 2.5mm2 shall be connected with the terminal of the equipment or appliance after connecting the terminal, except for the plug terminal of the equipment; Before the multi-strand copper core wire is connected with the plug type terminal, the end is tightened with tin lining.

The multi-strand aluminum core wire is connected with the terminal of the equipment and appliance after connecting the terminal;

No more than two wires are connected to the terminals of each device and appliance.

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