Which standard corresponds to the national standard of cables and wires, American Standard UL44? Ur

Updated on Financial 2024-08-05
12 answers
  1. Anonymous users2024-02-15

    Oh my God, you don't know the model, the specifications, how do you buy the wire, okay, a little more popular home improvement wire, generally 2 (core) flat wires or flower wires, plugs are generally used three-core wires Like the main line of home decoration is generally 10 square is the specification of the line Like other lines, it is generally used 2 But the space hole you asked is generally the color of the core line Blue-zero brown-fire The two-color (yellow-green) is the ground wire For more information, please contact Guangzhou Pearl River Cable Group****, Products and services: Guangzhou Cable Group is a professional manufacturer and sales enterprise of wires and cables. The wires and cables produced and sold by the company mainly include:

    Fire-resistant cables, shielded cables, branch cables and low-voltage wires, communication, signal lines, low-smoke and low-halogen wires and cables, high-temperature resistance, waterproof, etc

  2. Anonymous users2024-02-14

    Hello, the so-called UL refers to the English acronym of Underwriters Laboratories. Founded in 1894, UL is the most authoritative insurance agency in the United States. Three-fifths of UL standards are used in American National Standards (ANSI).

    Its predecessor was the American Society of Fire Insurers.

    UL mainly formulates safety standards, and has electrical, anti-theft, accident, fire protection and marine engineering departments, as well as a consumer advisory committee, which is responsible for the formulation of UL standards. UL is engaged in safety tests and inspections of various equipment, systems and materials at home and abroad to determine whether there is a danger to life and property, and the inspection results are made public to various insurance companies, ** institutions and other organizations. Those who pass the inspection will be issued with the UL quality mark.

    The UL mark is already in use in many countries.

    When it comes to standardization, UL has collaborative relationships with many organizations, such as ANSI, ASTM, etc.

    At present, there is no national cable standard with a similar grade.

    Hope it helps.

  3. Anonymous users2024-02-13

    Go to the first company, it is more convenient, the export of independent products of enterprises will be very troublesome, and the cable is a mandatory legal inspection, and the third-party test report recognized by the state is required, and each batch is required.

  4. Anonymous users2024-02-12

    This also depends on the requirements of the customer, I don't know about the cable, the wire also depends on what kind of wire you are, the test requirements for different wires are not the same, but the general line meets UL758, UL62, UL1581, these are OK.

  5. Anonymous users2024-02-11

    First of all, it is necessary to apply for an export license, and the standard must meet the UL standard of the United States, and then obtain UL certification.

  6. Anonymous users2024-02-10

    AWG is not the model corresponding to any national standard cable, it refers to the diameter of the core wire.

  7. Anonymous users2024-02-09

    American Standard (AWG) Cross-sectional area (mm²).

  8. Anonymous users2024-02-08

    Cables are manufactured in UL certified factories using UL standards in the United States.

  9. Anonymous users2024-02-07

    Just like the imperial length standard, like the Chinese length standard, there is no comparison, and it is a different way to measure it together. There is no question of who is higher and who is lower.

    UL 44 thermoset insulated wire and cable, we also have a corresponding thermoset plastic wire and cable standard in China, but it is scattered in different standards.

  10. Anonymous users2024-02-06

    It depends on the applicable country, i.e. which countries you want to export to and the voltage range standard! For example, in the United States: UL (Rubber Absolute Margin Wire & Cable (UL44), Thermoplastic Insulated Wire & Cable (UL83), Flexible Wire Device Wire (Leather UL62), Front Wax and User Drop Cable (UL854).

  11. Anonymous users2024-02-05

    Europe can find certification bodies such as VDE Kema SGS to do it.

  12. Anonymous users2024-02-04

    UL's requirements for the conductor of photovoltaic cables, you can refer to it, and you can understand at a glance that there are a variety of conductors made of wires.

    Standard: UL4703-2010 Outline of Investigation for Photovoltaic Wire

    4 Conductors. Structure.

    Only stranded copper, copper-clad aluminum, or an acceptable aluminium alloy conductor is used for the wire. The materials to which the wire should comply include:

    a) Standard specification, American ASTM B3 annealed soft copper wire.

    b) The co-core stranded hard copper or soft copper stranded wire shall comply with the American ASTM B8 standard.

    c) Standard specification for tinned annealed soft copper wire for electrical use, ASTM B33, USA

    d) Standard Specification for Stranded Copper Conductors, ASTM B172 for Electrical Conductors

    e) Standard Specification Copper Stranded Conductor Co-core Stranded Standard, Electrical Conductor, ASTM B173

    f) Standard specification for concentrically laid strand 1350 aluminum conductors, in accordance with ASTM B231

    g) Silver Plated Annealed Soft Copper Wire, ASTM B298 Standard Specification, (H) Standard Specification for Nickel Plated Annealed Soft Copper Wire, ASTM B355, (I) 8000 Series Aluminum Alloy Wire Annealed for Electrical Use Standard Specification for Intermediate Tempering, ASTM B800, (J) Standard Specification for 8000 Series Aluminum Alloy Coaxed Twisted Wire for Secondary Coated or Insulated, ASTM B801

    l) Compact round stranded aluminum conductors using a single standard specification, ASTM B836, (M) Standard specification for compressed stranded aluminum conductors using a single wire, ASTM B901, (N) Compressed round stranded hard copper or wire medium standard specification for hard, or soft, ASTM B902.

    Copper conductors must not be less than 18 awg and must not be larger than 2000 kcmil. Aluminium or copper-clad aluminium conductors must not be less than 12 awg and must not be greater than 2000 kcmil. Aluminum wires should be EC-1350 high-grade aluminum alloy or aluminum conductor material (ACM), AA8000 series alloy.

    Copper-clad aluminium conductors shall meet the requirements of the Reference Standard for Copper Foil Aluminum Conductor Wires, Cables and Flexible Wires, UL 1581.

    18 or 16 AWG copper conductors shall meet the requirements of stranded fixture wire device wire, UL66 and standard shall not be less than 7 strands. All other conductors shall meet the requirements of UL44 for thermoset insulated wires and cables, or UL83 for thermoplastic insulated wires and cables.

    Metric system in accordance with the requirements of insulated cables, conductors meet IEC60228 Class 5 conductor requirements; , may be the AWG construction dimensions described in the thermoset insulated wire standard for wires, rather than UL44 using the UL83 certification standard for cables or thermoplastic insulated wire and cable. The cross-section of the wire should be between and 1013 mm2. Larger than 1013 mm2 must not be used to determine the thickness of insulation or sheath.

    Please refer to the table of the UL758 standard for electrical wiring materials, the limits of conductor material temperature for use.

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