电缆的规格及参考外径表：
芯数 | 缆芯结构 | 参考外径 | 芯数 | 缆芯结构 | 参考外径 |
星绞组+对绞组 | 星绞组+对绞组 | ||||
4 芯 | PTYA23（PTYAH23）PTYA22 1x4 | 23.0 | 28芯 | PTYA23（PTYAH23）PTYA22 7x4 | 31.0 |
6芯 | PTYA23（PTYAH23）PTYA22 3x2 | 25.0 | 30芯 | PTYA23（PTYAH23）PTYA22 7x4+2 | 31.0 |
8芯 | PTYA23（PTYAH23）PTYA22 4x2 | 25.0 | 33芯 | PTYA23（PTYAH23）PTYA22 7x4+5 | 31.0 |
9芯 | PTYA23（PTYAH23）PTYA22 4x2+1 | 25.0 | 37芯 | PTYA23（PTYAH23）PTYA22 7x4+3x2+3 | 38.0 |
12芯 | PTYA23（PTYAH23）PTYA22 3x4 | 27.0 | 42芯 | PTYA23（PTYAH23）PTYA22 7x4+4x2+6 | 38.0 |
14芯 | PTYA23（PTYAH23）PTYA22 3x4+2 | 27.0 | 44芯 | PTYA23（PTYAH23）PTYA22 7x4+4x2+8 | 38.0 |
16芯 | PTYA23（PTYAH23）PTYA22 4x4 | 29.0 | 48芯 | PTYA23（PTYAH23）PTYA22 12x4 | 40.0 |
19芯 | PTYA23（PTYAH23）PTYA22 4x4+3 | 29.0 | 52芯 | PTYA23（PTYAH23）PTYA22 12x4+4 | 40.0 |
21芯 | PTYA23（PTYAH23）PTYA22 4x4+5 | 29.0 | 56芯 | PTYA23（PTYAH23）PTYA22 14x4 | 40.0 |
24芯 | PTYA23（PTYAH23）PTYA22 5x4+1x2+2 | 31.0 | 61芯 | PTYA23（PTYAH23）PTYA22 14x4+5 | 40.0 |
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