Cable Measuring – Cable and Wire Length Tolerance

11 Measuring Cable Assemblies and Wires

The following topics are addressed in this section:

<to be added at publication>

11.1 Cable Measuring – Cable and Wire Length Tolerance

Cable assembly and wire length measurement tolerance shall [D1D2D3] be as shown in Table 11-1 unless otherwise defined on the drawing/documentation.

Table 11-1 Cable/Wire Length Measurement Tolerance

Metric Imperial English

≤ 0.3 m +25 mm –0 mm ≤ 1 ft + 1 in –0 in

>0.3 m – 1.5 m +50 mm –0 mm > 1 ft –5 ft + 2 in –0 in

>1.5 m – 3 m +100 mm –0 mm > 5 ft – 10 ft + 4 in –0 in

>3 m – 7.5 m +150 mm –0 mm > 10 ft – 25 ft +6 in –0 in

>7.5 m +5% –0 % > 25 ft +5% –0%

11.2 1.1 Cable Measuring – Reference SurfacesMeasuring – Cable

11.2.1 11.1.1.1 Cable Measuring Measuring – Cable – Reference Surfaces – Straight/Axial Connectors Figure 11-1 identifies the points on a cable that are to be used as the reference surfaces.

11.2.2 11.1.1.2 Cable Measuring Measuring – Cable – Reference Surfaces – Right-Angle Connectors Figure 11-2 identifies the points on a cable that are to be used as the reference surfaces.

Figure 11-1 620A-11-1

Figure 11-2 620A-11-2

A-620B Final Draft for Industry Review – February 2012

11-2 11.2.3 11.1.2 Cable Measuring Measuring – Cable – Length

The length of a cable is measured from one end of the cable assembly to the other end. If reference surfaces are not specified on documentation, the reference surfaces are to be as specified in 11.2.1 AND 11.2.2.11.1.1.1 and 11.1.1.2. Cable length measurement tolerance shall [D1D2D3] be as shown in Table 11-1 unless otherwise defined on the drawing/documentation.

Table 11-1 Cable Length Measurement Tolerance <moved to front of section>

Target– Class 1,2,3

 Cable length meets specified nominal drawing length.

Acceptable – Class 1,2,3

 Cable length is within specified tolerances.

Defect – Class 1,2,3

 Cable length is not within specified tolerances.

11.2.4 11.1.3 Cable Measuring Measuring – Cable – Breakout

Breakout length is measured from the breakout point to the end of the breakout. If reference locations are not specified on documentation, use reference surfaces specified in 11.2.1 AND 11.2.2. 11.1.1.1 and 11.1.1.2. Cable length measurement tolerance is provided in Table 11-1.

Target – Class 1, 2, 3

 Breakout length meets specified drawing nominal length.

Acceptable – Class 1, 2, 3

 Breakout length is within the specified tolerance of the drawing nominal length.

Defect – Class 1, 2, 3

 Breakout length is not within the specified tolerance of the drawing nominal length.

Figure 11-3 620A-11-3

Figure 11-4 620A-11-4

Figure 11-5 620A-11-5

A-620B Final Draft for Industry Review – February 2012

11-3 11.3 11.2 Wire Measuring - Wire

Single wires used as a finished assembly or product generally consists of an insulated wire with one or both ends of the wire installed into electrical terminal(s). Wire length measurement tolerance shall [D1D2D3] be as shown in Table 11-1 unless otherwise defined on the drawing/documentation. <Jan2011>

If reference locations are not specified on documentation, use the reference surfaces specified in 11.3.1.11.2.1 and 11.2.2.

11.3.1 11.2.1 Wire Measuring -– Wire - Electrical Terminal Reference Location

Figure 11-6 illustrates the dimensional reference location (RL) or surface (RS) for several types of insulated and uninsulated electrical terminals. For ring (A), hook (B) and fork (C) terminals the fastener hole center is the reference location (RL). For quick-disconnect (D) and bullet (E) terminals the end of the terminal is the reference surface (RS).

Figures 11-7, 11-8 and 11-9 illustrate the dimensional reference location for wires and cables without terminations.

Figure 11-6 620A-11-6

A-620B Final Draft for Industry Review – February 2012

11-4 11.3.2 11.2.2 Wire Measuring - Wire - Length

The overall wire length, as an assembly, of a wire includes all or a portion of the electrical terminal(s) from their reference location or reference surface.

Target– Class 1,2,3

 The wire lengths from 1 wire end reference location or reference surface to the other are equal to the “nominal” wire length (nom).

Acceptable – Class 1,2,3

 Wire length is within specified tolerances.

Defect– Class 1,2,3

 Wire length is not within specified tolerances.

Figure 11-7 620A-11-7

Figure 11-8 620A-11-8

Figure 11-9 620A-11-9

A-620B Final Draft for Industry Review – February 2012

12-1 12 Marking/Labeling

Note: For the purposes of this section, marking and labeling are referred to as marking, as applied by the manufacturer.

Marking is not required unless specified on the controlling document. If a marking method has not been specified by the controlling document, any marking method that meets the requirements of this section is acceptable.

Regardless of the marking method used, markings shall [D1D2D3] contain the required information, be legible, be permanent in the intended application, and shall not [D1D2D3] damage the product nor impair its function.

Marking inspection is to be performed without magnification.

Note: Additional (non-required) information may be marked onto the product for internal purposes. This marking is not subject to the provisions of this section, provided that:

 The marking does not conflict with, and is separated from, required information; and,

 Prior to delivery non-permanent internal markings should be removed for Class 2 and shall [N1N2D3] be removed for Class 3 products.

Criteria with obvious understanding may not have illustrations.

Tie wraps/lacing used to install markers shall [D1D2D3] meet the criteria of 14.1.<June2011>

The following topics are addressed in this section.

<to be added at publication>

12.1 Content

These criteria are applicable when content marking is required.

Acceptable –Class 1,2,3

 Markings include the content specified by the controlling document.

Defect - Class 1,2,3

 Marking content incorrect.

 Marking missing.

A-620B Draft – January 2012

12-2 12.2 Legibility

These criteria are applicable when legible marking is required.

Target – Class 1,2,3

 Markings legible when viewed without

magnification. Markings are distinct, of uniform height, and of a color that contrasts with the background.

 Machine-readable markings (bar codes) are of the specified industry standard format.

 Bar codes can be read successfully with one attempt using either a wand or laser type scanner.

Acceptable – Class 1,2,3

 Marking legible but blurred.

 Bar codes can be successfully read with three or fewer attempts using a wand type scanner.

 Bar codes can be successfully read with two or fewer attempts using a laser scanner.

Defect - Class 1,2,3

 Marking not legible.

 Bar codes cannot be successfully read with three or fewer attempts using a wand type scanner.

 Bar codes cannot be successfully read with two or fewer attempts using a laser scanner.

Figure 12-1 620A-12-1

Figure 12-2 620A-12-02

Figure 12-3 620A-12-03

A-620B Final Draft for Industry Review – February 2012

12-3 12.3 Permanency

These criteria are applicable when permanent marking is required.

Acceptable – Class 1,2,3

 Markings remain legible after exposure to handling, assembly and required environmental testing.

Defect – Class 1,2,3

 Markings not legible or present after exposure to handling, assembly and required environmental testing.