Glow Wire Basics And When To Use It

Glow Wire tests simulate contact with hot elements or overheated parts in electrical equipment. The most used indices are GWFI which is glow wire flammability index and GWIT which is glow wire ignition temperature. Requirements are usually set by product standards for panels terminals and insulating parts. We can advise materials machine parts and supply a Certificate of Conformity.

Hot Element Tests For Insulating Parts

Learn when product standards require GWFI or GWIT and how to choose materials and thickness for covers terminals and mounting plates near live parts.
  • GWFI And GWIT Explained

    GWFI And GWIT Explained

    Indices For Flammability And Ignition

    GWFI indicates whether a material self extinguishes and limits burning when touched by a heated wire under defined conditions. GWIT indicates the temperature at which ignition is not likely under similar contact. The required values depend on the product standard and location of the part. Share your target indices and part thickness so we can suggest suitable grades.

  • Where Glow Wire Is Used

    Where Glow Wire Is Used

    Panels Terminals And Insulating Parts

    Glow Wire requirements commonly apply to parts that may contact hot conductors or resistive elements. Examples include terminal covers mounting plates and housings near live parts. Results are grade and thickness specific so always pair a target value with the planned wall thickness.

    We can help select materials and verify available supplier data for your design.

  • Selecting Materials And Documenting Results

    Selecting Materials And Documenting Results

    Match Grades To Targets And Thickness

    Material choice and thickness drive outcomes. FR ABS PC ABS and filled grades are often used in electrical panels. Polycarbonate and HPL plates are common for structural parts near electrics. We cut to size machine and finish parts to drawing and include a Certificate of Conformity. Supplier glow wire data can be shared where available for the chosen material.