SAE J1128:2020 pdf free

SAE J1128:2020 pdf free.Low Voltage Primary Cable
When a test is required, all combinations of conductor size, wall thickness, and insulation formulation shall meet the appropriate requirements. However, if testing representative conductor sizes is permitted, compliance for a cable family may be demonstrated by testing examples of large and small conductor sizes only. Permission to show compliance for a cable family by testing representative conductor sizes will be established by agreement between customer and supplier.
When tin-, silver-, or nickel-coated wires are used, they shall withstand the applicable strand coating test specified in 6.1 and Table 2. The cross-sectional area of stranded conductors shall not be less than the values specified in Table 3. The cross-sectional area may be verified by measuring actual strand sizes or by using the weight method in ASTM B263 with a calculated factor to account for the twist loss. Test three samples. See Table A1 for metric dimensions.
The conductor construction is established by agreement between the supplier and the customer. Typical constructions include, but are not limited to, annealed copper, compacted copper, coated copper, hard drawn copper, alloys, or copper-clad steel.
The insulation shall be homogeneous and shall be placed concentrically within commercial tolerances about the conductor.The insulation shall adhere closely to, but strip readily from, the conductors leaving them in suitable condition for terminating.A separator shall be used between uncoated conductors and insulations with a sulfur cure. Separators are optional for other constructions.
The outside cable diameter shall be measured at five separate cross sections spaced 50 mm apart with an optical device accurate to at least 0.01 mm. Other devices may be used; however, in case of dispute, the referee shall be the optical device. A minimum of two readings shall be taken at each cross section. The sample should be rotated 90 degrees between readings. The mean of the diameter readings shall determine the outside cable diameter and shall be in accordance with Table 4 for the various cable types. See Table A2 for English cable dimensions.
The minimum wall thickness shall be measured at five separate cross sections spaced 400 mm apart using the equipment described in 5.3. No single value shall be less than the appropriate wall thickness minimum specified in Table 4.SAE J1128 pdf free download.