AS/NZS 3675 Type CC Type CCT Covered Conductors

The AS/NZS 3675 standard specifies that covered conductors must have insulation material but no conductor or insulation screens. These conductors are used similarly to open wire 11 to 33kV bare overhead systems.

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Construction

Conductors: Available in aluminium, aluminium alloy, and aluminium clad steel.
Water Blocking: Utilizes a special material that meets the test requirements of AS/NZS 3675.
Covering: These conductors are covered with a track-resistant UV-stabilised XLPE or with an inner layer of non-UV-stabilised XLPE and an outer layer of UV-stabilised High-Density Polyethylene (HDPE). If the latter is used, the average thickness of HDPE is not more than 40% of the specified minimum average thickness and not less than 1.0mm.

Standards

AS/NZS 3675

Conductor size No./mm	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Continuous current carrying capacity						Fault current rating kA for 1 sec.*	Everday working tensionf kN	Maximum working tension (50% MBL) kN	Minimum breaking load kN	Minimum bending radius mm
	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Based on 30°C ambient			Based on 40°C ambient
	Ω/km	Ω/km	Ω/km	Still air	1.0 m/s wind	2.0 m/s wind
Alloy 6201
7/2.75	0.799	0.988	0.331	125	210	235	110	185	210	3.5	1.51	5.8	11.6	200
7/3.75	0.43	0.532	0.312	180	300	345	160	270	310	6.4	2.82	10.9	21.7	245
7/4.75	0.268	0.331	0.297	245	410	465	220	365	415	10.3	4.52	17.4	34.8	290
19/3.50	0.183	0.227	0.281	315	515	595	280	460	530	15.2	6.67	25.7	51.3	340
Alloy 1120
7/2.75	0.713	0.881	0.331	130	220	250	115	195	225	3.7	1.49	4.96	9.91	200
7/3.75	0.383	0.474	0.312	190	320	365	170	285	325	6.8	2.64	8.8	17.6	245
7/4.75	0.239	0.296	0.297	260	430	485	230	385	435	11	4.07	13.6	27.1	290
19/3.50	0.163	0.202	0.281	330	545	625	295	485	560	16.2	6.26	20.9	41.7	340

TECHNICAL PERFORMANCE CHARACTERISTICS FOR COVERED CONDUCTORS (CCT)

Conductor size No./mm	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Continuous current carrying capacity						Fault current rating kA for 1 sec.*	Everday working tensionf kN	Maximum working tension (50% MBL) kN	Minimum breaking load kN	Minimum bending radius mm
	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Based on 30°C ambient			Based on 40°C ambient
	Ω/km	Ω/km	Ω/km	Still air	1.0 m/s wind	2.0 m/s wind
11 kv covered conductor Alloy 6201
7/3.75	0.43	0.532	0.312	185	295	330	165	265	295	6.4	2.82	10.9	21.7	285
7/4.75	0.268	0.331	0.297	245	390	440	220	350	395	10.3	4.52	17.4	34.8	330
19/3.50	0.183	0.227	0.281	315	500	560	280	445	500	15.2	6.67	25.7	51.3	380
22 kV covered conductor Alloy 6201
7/3.75	0.43	0.532	0.312	185	285	315	165	255	280	6.4	2.82	10.9	21.7	350
7/4.75	0.268	0.331	0.297	245	375	420	220	335	375	10.3	4.52	17.4	34.8	395
19/3.50	0.183	0.227	0.281	315	475	530	280	425	475	15.2	6.67	25.7	51.3	445
33kv covered conductor Alloy 6201
7/3.75	0.43	0.532	0.312	185	270	295	165	240	265	6.4	2.82	10.9	21.7	425
7/4.75	0.268	0.331	0.297	245	360	400	220	320	355	10.3	4.52	17.4	34.8	470
19/3.50	0.183	0.227	0.281	315	455	505	280	405	450	15.2	6.67	25.7	51.3	520

XLPE covered aerial cables Alloy 1120 conductors

Conductor size No./mm	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Continuous current carrying capacity						Fault current rating kA for 1 sec.*	Everday working tensionf kN	Maximum working tension (50% MBL) kN	Minimum breaking load kN	Minimum bending radius mm
	Conductor d.c. resistance at 20°C	Conductor a.c. resistance at 80°C	Reactance at 50 Hz (460 mm spacing)	Based on 30°C ambient			Based on 40°C ambient
	Ω/km	Ω/km	Ω/km	Still air	1.0 m/s wind	2.0 m/s wind
11kv covered conductor Alloy 1120
7/2.75	0.713	0.881	0.331	130	215	240	115	190	215	3.7	1.49	4.96	9.9	230
7/3.75	0.383	0.474	0.312	190	315	345	170	280	310	6.8	2.64	8.8	17.6	285
7/4.75	0.239	0.296	0.297	26()	415	470	230	370	420	11	4.07	13.6	27.1	330
19/3.50	0.163	0.202	0.281	330	525	595	295	470	530	16.2	6.26	20.9	41.7	380
22 kV covered conductor Alloy 1120
7/2.75	0.713	0.881	0.331	135	205	225	120	185	200	3.7	1.49	4.96	9.9	300
7/3.75	0.383	0.474	0.312	190	295	330	170	265	295	6.8	2.64	8.8	17.6	350
7/4.75	0.239	0.296	0.297	260	400	440	230	355	395	11	4.07	13.6	27.1	395
19/3.50	0.163	0.202	0.281	330	505	560	295	450	500	16.2	6.26	20.9	41.7	445
33kv covered conductor Alloy 1120
7/2.75	0.713	0.881	0.331	135	195	215	120	175	190	3.7	1.49	4.96	9.9	385
7/3.75	0.383	0.474	0.312	195	285	315	175	255	280	6.8	2.64	8.8	17.6	425
7/4.75	0.239	0.296	0.297	260	380	420	230	340	375	11	4.07	13.6	27.1	470
19/3.50	0.163	0.202	0.281	330	480	530	295	430	475	16.2	6.26	20.9	41.7	520

15kV/25kV/35kV Multi-layer Tree Wire

Used for primary and secondary overhead distribution where limited space is available or desirable for rights of way. Installed as an uninsulated conductor; however, covering is effective in preventing direct shorts and instantaneous flashovers should tree limbs or other objects contact conductors in such close proximity. The resulting close-proximity configuration minimizes the amount of space […]

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CAAI Cable / Self-Supporting Cable

For air networks of secondary distribution of low-cost electricity in urban and rural areas. They are installed both in posts and attached to walls, in both cases, with the appropriate accessories.They do not require the use of insulators.

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Cable Aluminio Preensamblado

For use in overhead distribution system at 600/1000 volts or less, as the connection from the secondary power line or pole mounted transformer to the service head or entrance conductors at buildings. 2. The neutral core are designed to be bare or insulated aluminum alloy 6201-T81 conductor to perform as supporting core for overhead installation.

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Aerial Bundled Cables (ABC Cables)

The aerial bundled cables are used for overhead distribution line and electrical installations with alternating power networks with nominal voltage U0/U 0.6/1kV or in direct power networks with maximum voltage according to land 0.9kV.

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Products

AS/NZS 3675 Type CC Type CCT Covered Conductors

Construction

Standards

AS/NZS 3675

TECHNICAL PERFORMANCE CHARACTERISTICS FOR COVERED CONDUCTORS (CCT)

XLPE covered aerial cables Alloy 1120 conductors