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MIL-DTL-55446 Cables, Telephone, Switchboard: Plastic Insulated, Plastic JacketedThis specification covers plastic insulated, plastic jacketed, telephone switchboard cables consisting of number 22 AWG conductors in combinations of pairs and singles ranging from 4 pairs to 201 pairs \(see 1.2\).

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MIL-DTL-55446D

TABLE IV. Group A inspection.

Inspection

Requirement

Verification

Visual and dimensional

Construction

Materials

Conductor

Joints in conductors

Insulation

Insulation thickness

Diameter of insulated conductor

3.6.2

4.4.4

Color code

3.6.3, 3.6.3.1, 3.6.3.2

Cabling, binders

3.7, 3.7.1

Core wrapping

3.7.2

Ripcord

3.8

Jacket

3.9

Diameter of finished cables

3.9.1

Workmanship

3.13

Electrical

Continuity

Short circuits

Resistance

Dielectric strength

Insulation resistance

3.10.5

4.4.1.5

TABLE V. Group B inspection.

Physical inspection

Requirement

Verification

Insulation

Tensile strength

Elongation

Adhesion

Shrinkage

Cold bend

Jacket

Tensile strength

Elongation

Heat shock

Jacket stripping