Uninyvin cable

Uninyvin (also known as Nyvin) cables are lightweight, heat‑resistant cables originally developed for aircraft wiring. They use a combination of tinned copper, heat‑resistant insulation and protective braids to achieve high performance.

Construction

Annealed tinned copper conductor; heat‑resistant PVC insulation; glass fiber braid saturated with protective varnish; nylon or neoprene outer covering.

Cable standards

Manufactured according to BS G 177 and KSD 07‑73 for aircraft wiring; rated for frequencies up to 1600 Hz.

Technical specification

Rated voltage up to 600 V; continuous operating temperature up to +105 °C; serviceable down to –75 °C; small diameter and low weight; available conductor sizes from ~0.35 mm² to >100 mm².

Characteristics

Very light weight; superior heat and abrasion resistance; high mechanical strength; better current‑carrying capacity than equivalent PVC cables; good for high frequency applications.

Applications

Fixed wiring in aircraft and aerospace equipment; wiring in military vehicles and transport systems where weight reduction and heat resistance are critical; also used in high‑frequency or vibration‑prone installations.

Core (AWG)	22	20	18	16	14	12	10	8	6	4	2	1	0	0	0	0
Size (sq.mm)	0.347	0.566	0.966	1.17	2.05	3.22	5.33	8.76	13.3	21.5	33.3	40.7	53	68.3	84.2	109
Conductor Ø Max (mm)	0.838	1.04	1.32	1.55	1.95	2.43	3.15	4.24	5.54	6.9	8.76	9.75	11	12.4	13.9	15.6
Overall Ø Max (mm)	2	2.3	2.5	2.8	3.4	3.8	5	6.3	7.5	9.3	11	12.2	13.7	15.4	16.9	18.7
Conductor Resistance Max (Ω/900 m @20°C)	49.66	30.95	17.82	14.7	8.41	5.35	3.23	1.97	1.3	0.802	0.517	0.423	0.325	0.252	0.204	0.158
Max Current (A)	11	14	18	21	31	43	61	87	115	160	200	220	240	270	300	350

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