TPNP

What is TPNP cable?

TPNP: shipboard three-core flexible cord, 0.6/1 kV, EPR insulation, polychloroprene (PCP) sheath. Rating: 0.6/1 kV AC, 0.9/1.5 kV DC; conductor 90 °C; 0.75 to 6 mm² flexible (Table 28 Notes 1 and 2, p. 44). Standard: JIS C 3410:2010 Table 1 (p. 6) and Table 28 (p. 44); built on IEC 60092-351, -353, -354, -359 and -376 (Introduction, degree MOD).

Read in JIS C 3410:2010 (JSA English translation), seen: standard. Table 28 (p. 44): two, three or four flexible cores of 0.75 to 6 mm² (24/0.20 to 82/0.30 mm); EPR insulation 1.0 mm; PCP sheath 1.4 to 2.0 mm filling the interstices (6.11.2); routine test 3 500 V. The letter N replaces Y where a PCP sheath is used on EPR insulated cables (Table 3 note b, p. 9); PCP sheath usually black (6.14.2, p. 23); bending test 7.5 (Table 10, p. 25). Galvanised steel braid wire 0.3 or 0.4 mm (5.11.1, Table 7, p. 19), one over one under or two over two under, coverage at least 90 % (F at least 0.573, 6.16, p. 23); braid paint and protective covering white at 150/250 V and 0.6/1 kV, red at 3.6/6 and 6/10 kV, grey for fire resistant cables (6.16 c, 6.17, p. 24). Designation (cl. 10, p. 29): the symbol, a hyphen and the conductor size in mm², for multicore cables the number of cores, for telephone cables the number of pairs ("0.6/1 kV SPYC-120", "150/250 V MPYCY-12", "150/250 V TTYC-10"). FA- (flame retardant, bunched test 7.7: char at most 2.5 m) and FR- (fire resistant, mica tape under the insulation, 6.3, IEC 60331-21 or -31, 7.8) prefix the symbol.

Documents and pages the readings were taken from

• JIS C 3410:2010, JSA English translation (first English edition 2011-09): Table 1 types and symbols pp. 2 to 8, Tables 2 and 3 letters pp. 8 to 9, construction Table 28 (p. 44)

JIS C 3410 shipboard cables: how to read the cable type names