Scrape Abrasion | Lectromec

Starting $2,060

Spec AS4373 Method 301 AS22759 Paragraph 5.7.16 EN3475 Method 503 EN6059 Method 403 ISO 19642-2 Method 5.3.2.5 ISO 6722 Method 5.12

Type Mechanical

For Insulation

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Quantity discounts available.

One of the most common means for wire failure is through insulation chafing. In operating conditions, wires/cables are exposed to various sharp edges on aircraft that can quickly deteriorate the insulation integrity. This test assesses the wire/cable’s insulation durability to sharp edges at ambient temperature. The sample is abraded until failure. The failure is identified via a detection circuit connected to the scrape abrasion jig and sample under test. Once conductivity is detected between the two, the test is halted and results recorded. When this test is performed on shielded cables/harnesses, the typical test modification is to attach the detection circuit to the sample shield. This can be changed based on the client’s need. There are several parameters that can be adjusted to the client’s particular needs including:

Weight on Sample
Abrasion Frequency
Abrasion Jig
Number of Trials
Temperature (see Scrape Abrasion at Temperature).

Our Process

Perform visual examination of the sample. Record any damage or defects.

Place sample into the test enclosure. Record temperature.

Start abrasion of the test sample.

Once electrical conductivity is detected between the test jig and sample, halt test.

Move sample such that an undamaged portion of insulation is under the abrasion test jig.

Complete 10 trials on sample.

Report the average, standard deviation, and test conditions for sample tested.