Marking Durability

This test may also be referred to as Durability of Identification, Durability of Marking, or Durability of Wire Manufacturer’s Color and/or Identification.

The long-term readability of wire/cable identification is important for supporting EWIS maintenance operations. A wire/cable with an easily identifiable circuit identification will make it easier to identify the correct circuit in need of evaluation/repair/replacement. If the identification has worn off, then debugging operations may require removing more equipment and/or demating more connectors.

The marking durability test seeks to evaluate the wire/cable identification after abrasion. The pass/fail criteria are based on the individual wire/cable specification but is primarily focused the readability of the wire/cable marks.

Parameters that can be adjusted for this test include (but are not limited to):

• Test temperature
• Weight on sample
• Number of abrasion cycles
• Abrasion jig

• Scrape Abrasion
• Scrape Abrasion at Elevated Temperature
• Aircraft Wire Abrasion Resistance