Products comply with IEC439-1 ~ 2, GB7251.1 ~ 2-1997, UL857, JB8511-1996.
The busway can guarantee long-term normal operation at rated current and 110% rated voltage.
The busway has an insulation resistance of not less than 20MΩ per section at normal ambient air temperature of 20°C±5°C and relative humidity of 50 to 70%. 4)Busbar can withstand 3750V power frequency withstand voltage for 1min Wear and flash phenomenon.
Plug-in box and its installation:
1. The outer shell of the plug-in box adopts anti-corrosion steel plate and the surface is coated with electrostatic powder of epoxy resin.
2. The plug-in box adopts the circuit breaker type, and the circuit breaker box is operated. The protection board should be installed in the box to prevent accidental electric shock when opening the box door.
3, plug box shutters should have interlocking devices to prevent open the valve in the live state.
4. The locking pin of the plug-in box should have an interlocking function to ensure that the plug-in box is fully inserted and can be closed.
5, plug box box for PE, socket built-in special PE row to ensure grounding short circuit capability.
6. The circuit breaker in the box is made of HM3 series molded case circuit breaker manufactured by Shanghai Siemens Low Voltage Circuit Breaker Co., Ltd., Ics>31.5ka.
7. Before installing the busbar trunking box, open the safety baffle at the busbar socket. Push the switch in the box to OFF, and insert the plug of the box in the phase sequence from the busbar socket. Busway, and ensure that it is inserted into place. No hot plug!
8. After the plug-in box is installed, two claw-type card plates at the front and back shall be fixed on both sides of the busway, and tighten the screws.
Busway and its bracket installation:
1. The reformed busway shall meet the 3C certification standard. The newly added plug-in box shall have the 3C certification mark, and shall issue a type test report.
2. The surge voltage of the busway shall comply with the current national standards. The enclosure protection level is not lower than IP54.
3, bus slot bracket installation should meet the following requirements:
3.1 When laying busbars horizontally Each unit of busway shall not be less than two brackets, and shall be reliably fixed.
3.2 Pressing connection between bracket and busbar groove.
4. Busway body installation should meet the following requirements:
4.1 Before installation, the insulation resistance of the phase-to-ground, phase-to-ground, and zero-ground between each unit busway must be measured and should not be less than 20 MΩ.
4.2 Busbars installed horizontally shall use busbars to fix the busbars on the busbar brackets. The fixing bolts should not be tightened too tightly.
4.3 The insulation resistance of the busway shall be measured after installing one unit busway, allowing the total insulation resistance to gradually decrease, but no abrupt changes are allowed, and the total insulation resistance shall not be less than 0.5 MΩ.
4.4 The connection box and the busway shall be reliably fixed. When the busway passes through the settlement joint or expansion joint of the building, the soft connection unit of the busway shall be installed. After the installation of the busway, the fire prevention shall be performed for the empty tunnels that pass through the walls and floors. Plugging.
4.5 Two busbars installed horizontally adjacent to each Other; the distance between the support points when the busway is laid horizontally shall not exceed 2.5m. (For example, large-span high-strength busway can be laid in the workshop, and the spacing can be more than 6m.) When the busway is horizontally installed on the support and hanger, the horizontal fixed platen is used for fixing.
4.6 The connection point of the busbar shall not be in the part passing through the wall. When the busbar slot is installed in the wall-through hole, no sewage or debris shall enter the interior of the busbar.
4.7 After the busway is connected as a whole, the grounding resistance must be checked with a multimeter 1Ω, and the resistance is less than 0. 1Ω to ensure grounding requirements.
4.8 Busway The expansion (telescoping) section shall be provided when the straight laying length exceeds 60m.
IV. Main current standards to be followed CECS 170:2004 "Selection, installation and acceptance regulations for low voltage busway"
GB 7251.1-2 "Low-voltage switchgear and control equipment"
IEC439-1 "Low-voltage switchgear and control equipment"
GB156-93 Standard Voltage
GB1408-89 "Test method for power frequency electrical insulation of fixed insulation materials"
GB191-2000 "Packaging Storage and Transportation Symbols"
GB/T4942-2 "Low-voltage electrical enclosure protection grade"
GB14048.3-93 "Low-voltage switchgear and control equipment, low-voltage switch, isolator, disconnector and fuse combination"
IEC112-1979 "Determination of relative tracking index and scratch resistance index of solid insulating materials under wet conditions"
GB7949-87 "Color Marking of Insulated Conductors and Bare Conductors"
The busway can guarantee long-term normal operation at rated current and 110% rated voltage.
The busway has an insulation resistance of not less than 20MΩ per section at normal ambient air temperature of 20°C±5°C and relative humidity of 50 to 70%. 4)Busbar can withstand 3750V power frequency withstand voltage for 1min Wear and flash phenomenon.
Plug-in box and its installation:
1. The outer shell of the plug-in box adopts anti-corrosion steel plate and the surface is coated with electrostatic powder of epoxy resin.
2. The plug-in box adopts the circuit breaker type, and the circuit breaker box is operated. The protection board should be installed in the box to prevent accidental electric shock when opening the box door.
3, plug box shutters should have interlocking devices to prevent open the valve in the live state.
4. The locking pin of the plug-in box should have an interlocking function to ensure that the plug-in box is fully inserted and can be closed.
5, plug box box for PE, socket built-in special PE row to ensure grounding short circuit capability.
6. The circuit breaker in the box is made of HM3 series molded case circuit breaker manufactured by Shanghai Siemens Low Voltage Circuit Breaker Co., Ltd., Ics>31.5ka.
7. Before installing the busbar trunking box, open the safety baffle at the busbar socket. Push the switch in the box to OFF, and insert the plug of the box in the phase sequence from the busbar socket. Busway, and ensure that it is inserted into place. No hot plug!
8. After the plug-in box is installed, two claw-type card plates at the front and back shall be fixed on both sides of the busway, and tighten the screws.
Busway and its bracket installation:
1. The reformed busway shall meet the 3C certification standard. The newly added plug-in box shall have the 3C certification mark, and shall issue a type test report.
2. The surge voltage of the busway shall comply with the current national standards. The enclosure protection level is not lower than IP54.
3, bus slot bracket installation should meet the following requirements:
3.1 When laying busbars horizontally Each unit of busway shall not be less than two brackets, and shall be reliably fixed.
3.2 Pressing connection between bracket and busbar groove.
4. Busway body installation should meet the following requirements:
4.1 Before installation, the insulation resistance of the phase-to-ground, phase-to-ground, and zero-ground between each unit busway must be measured and should not be less than 20 MΩ.
4.2 Busbars installed horizontally shall use busbars to fix the busbars on the busbar brackets. The fixing bolts should not be tightened too tightly.
4.3 The insulation resistance of the busway shall be measured after installing one unit busway, allowing the total insulation resistance to gradually decrease, but no abrupt changes are allowed, and the total insulation resistance shall not be less than 0.5 MΩ.
4.4 The connection box and the busway shall be reliably fixed. When the busway passes through the settlement joint or expansion joint of the building, the soft connection unit of the busway shall be installed. After the installation of the busway, the fire prevention shall be performed for the empty tunnels that pass through the walls and floors. Plugging.
4.5 Two busbars installed horizontally adjacent to each Other; the distance between the support points when the busway is laid horizontally shall not exceed 2.5m. (For example, large-span high-strength busway can be laid in the workshop, and the spacing can be more than 6m.) When the busway is horizontally installed on the support and hanger, the horizontal fixed platen is used for fixing.
4.6 The connection point of the busbar shall not be in the part passing through the wall. When the busbar slot is installed in the wall-through hole, no sewage or debris shall enter the interior of the busbar.
4.7 After the busway is connected as a whole, the grounding resistance must be checked with a multimeter 1Ω, and the resistance is less than 0. 1Ω to ensure grounding requirements.
4.8 Busway The expansion (telescoping) section shall be provided when the straight laying length exceeds 60m.
IV. Main current standards to be followed CECS 170:2004 "Selection, installation and acceptance regulations for low voltage busway"
GB 7251.1-2 "Low-voltage switchgear and control equipment"
IEC439-1 "Low-voltage switchgear and control equipment"
GB156-93 Standard Voltage
GB1408-89 "Test method for power frequency electrical insulation of fixed insulation materials"
GB191-2000 "Packaging Storage and Transportation Symbols"
GB/T4942-2 "Low-voltage electrical enclosure protection grade"
GB14048.3-93 "Low-voltage switchgear and control equipment, low-voltage switch, isolator, disconnector and fuse combination"
IEC112-1979 "Determination of relative tracking index and scratch resistance index of solid insulating materials under wet conditions"
GB7949-87 "Color Marking of Insulated Conductors and Bare Conductors"
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