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AAC-All Aluminum Stranded Conductor CSA C49
Standard: CSA C49 (Aluminum Conductors, Bare, Stranded — Canadian Standards Association)
Conductor Material: Hard-drawn aluminium 1350-H19 (≥ 99.55% Al)
Conductivity: 61% IACS
Class: AA (bare overhead) / A (covered/flexible bare)
Construction: Concentric-lay stranded, circular cross-section
Size Range: 4 AWG (21.16 mm²) to 1800 MCM (912.06 mm²) — 49 sizes
Standard Wire Counts: 7 / 19 / 37 / 61 wires
Max. Continuous Temperature: 75 °C
Packaging: Wooden / steel drum; 500 m / 1000 m standard
Product Overview
AAC — All Aluminum Stranded Conductor (CSA C49) is a concentric-lay stranded bare aluminium overhead conductor manufactured to the Canadian Standards Association standard CSA C49 — the definitive overhead bare conductor specification for Canadian utility networks. Produced from hard-drawn aluminium 1350-H19 (minimum 99.55% purity), CSA C49 AAC shares the same flower code word naming convention as ASTM B231 but includes a number of Canadian-specific conductor sizes (such as Lily 3 AWG, and round-number MCM sizes 400, 550, 800, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 MCM) that are standard in Canadian utility procurement but absent from the US ASTM B231 table.
A key distinction of the CSA C49 data sheet is the inclusion of current rating (ampacity) values for each conductor size — making it more directly usable for distribution line design than the ASTM B231 table which does not include ampacity. The conductor is classified as Class AA (bare overhead, least flexible) and Class A (covered or flexible bare service), with the same concentric-lay construction as ASTM B231. Available from 4 AWG (Rose) to 1800 MCM, covering the complete range of Canadian distribution and transmission conductor requirements.
CSA C49 Certified — Canadian Standard
Full compliance with the Canadian national overhead conductor standard — mandatory for utility tender qualification, provincial utility acceptance, and Canadian Standards Association certified project submissions across all Canadian provinces and territories.
Canadian-Specific Size Series
Includes round-number MCM sizes (400, 550, 800, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 MCM) and Lily 3 AWG — standard Canadian utility conductor sizes absent from ASTM B231, required for exact-match replacement on Canadian-designed overhead infrastructure.
Ampacity Included in Data Table
CSA C49 specifies current rating values for each conductor size — directly usable in distribution line design calculations. The table covers 104 A (Rose, 4 AWG) to 975 A (1800 MCM), providing utility engineers with a complete design reference without additional ampacity calculation.
61% IACS Conductivity
Hard-drawn 1350-H19 aluminium delivers 61% IACS conductivity — maximum current-carrying capacity for a given conductor cross-section, critical in Canadian urban distribution networks where conductor size and pole loading must be minimised.
Flower Code Word Procurement
Shares the Aluminum Association flower code word convention with ASTM B231 — Rose, Tulip, Marigold, and other names are used identically in Canadian utility specifications. Specifying the code word eliminates AWG/MCM conversion ambiguity in procurement documents.
No Steel Core — Corrosion Resistant
All-aluminium construction eliminates the galvanic corrosion risk at the bimetallic interface present in ACSR. Preferred in coastal British Columbia, humid Ontario, and salt-spray environments along Canadian coastlines and near major water bodies.
Technical Specifications
Basic Parameters
| Standard | CSA C49 — Aluminum Conductors, Bare, Stranded (Canadian Standards Association) |
|---|---|
| Conductor Material | Hard-drawn aluminium 1350-H19 (≥ 99.55% Al purity) |
| Conductivity | 61% IACS |
| Class Designations | Class AA (bare overhead, least flexible); Class A (covered/flexible bare) |
| Construction | Concentric-lay stranded, circular cross-section; adjacent layers in reverse lay directions |
| Size Range | 4 AWG (21.16 mm²) to 1800 MCM (912.06 mm²) |
| Standard Wire Counts | 7 / 19 / 37 / 61 wires |
| Max. Continuous Temperature | 75 °C (continuous bare overhead service) |
| Packaging | Wooden or steel drum; standard lengths 500 m / 1000 m; custom lengths available |
Full Parameter Table — CSA C49 AAC
| Code Word | Size (AWG/MCM) | Area (mm²) | Stranding (No./mm) | Overall Ø (mm) | Weight (kg/km) | Breaking Load (kN) | DC Resistance (Ω/km, 20°C) | Current Rating (A) |
|---|---|---|---|---|---|---|---|---|
| Rose | 4 | 21.16 | 7/1.96 | 5.89 | 58 | 4.10 | 1.3510 | 104 |
| Lily | 3 | 26.65 | 7/2.20 | 6.61 | 73 | 5.00 | 1.0720 | 124 |
| Iris | 2 | 33.61 | 7/2.47 | 7.42 | 92 | 6.20 | 0.8497 | 136 |
| Pansy | 1 | 42.39 | 7/2.77 | 8.33 | 116 | 7.60 | 0.6739 | 157 |
| Poppy | 1/0 | 53.48 | 7/3.12 | 9.36 | 146 | 9.20 | 0.5341 | 180 |
| Aster | 2/0 | 67.42 | 7/3.50 | 10.51 | 184 | 11.60 | 0.4236 | 207 |
| Phlox | 3/0 | 85.03 | 7/3.93 | 11.80 | 232 | 14.10 | 0.3360 | 237 |
| Oxlip | 4/0 | 107.23 | 7/4.41 | 13.25 | 293 | 17.70 | 0.2664 | 273 |
| Valerian | 250 | 126.71 | 19/2.91 | 14.57 | 348 | 22.30 | 0.2274 | 305 |
| Daisy | 266.8 | 135.16 | 7/4.96 | 14.90 | 369 | 22.40 | 0.2113 | 313 |
| Laurel | 266.8 | 135.16 | 19/3.01 | 15.05 | 372 | 23.80 | 0.2129 | 317 |
| Peony | 300 | 152.00 | 19/3.19 | 15.97 | 417 | 26.20 | 0.1880 | 340 |
| Tulip | 336.4 | 170.45 | 19/3.38 | 16.91 | 467 | 29.40 | 0.1638 | 364 |
| Daffodil | 350 | 177.35 | 19/3.44 | 17.24 | 488 | 30.60 | 0.1624 | 373 |
| Canna | 397.5 | 201.42 | 19/3.67 | 18.36 | 554 | 34.00 | 0.1427 | 401 |
| — | 400 | 202.71 | 19/3.68 | 18.43 | 558 | 34.20 | 0.1421 | 402 |
| Goldentuft | 450 | 228.00 | 19/3.90 | 19.55 | 626 | 37.70 | 0.1263 | 432 |
| Cosmos | 477 | 241.68 | 19/4.02 | 20.12 | 664 | 40.00 | 0.1188 | 447 |
| Zinnia | 500 | 253.35 | 19/4.12 | 20.60 | 695 | 41.90 | 0.1132 | 459 |
| — | 550 | 278.71 | 37/3.09 | 21.67 | 768 | 48.00 | 0.1033 | 485 |
| Dahlia | 556.5 | 282.00 | 19/4.34 | 21.73 | 774 | 46.70 | 0.1018 | 489 |
| Meadowsweet | 600 | 304.00 | 37/3.23 | 22.63 | 838 | 52.40 | 0.0948 | 513 |
| Orchid | 636 | 322.26 | 37/3.33 | 23.31 | 888 | 55.60 | 0.0896 | 531 |
| Heuchera | 650 | 329.35 | 37/3.36 | 23.56 | 908 | 56.80 | 0.0876 | 538 |
| Verbena | 700 | 354.71 | 37/3.49 | 24.45 | 978 | 61.10 | 0.0814 | 562 |
| Violet | 715.5 | 362.58 | 37/3.53 | 24.74 | 1000 | 62.50 | 0.0797 | 570 |
| Petunia | 750 | 380.00 | 37/3.61 | 25.32 | 1048 | 64.20 | 0.0758 | 585 |
| Arbutus | 795 | 402.84 | 37/3.72 | 26.06 | 1112 | 68.10 | 0.0715 | 605 |
| — | 800 | 405.35 | 37/3.73 | 26.14 | 1118 | 68.50 | 0.0712 | 608 |
| Anemone | 874.5 | 443.10 | 37/3.90 | 27.33 | 1222 | 73.30 | 0.0653 | 641 |
| Cockscomb | 900 | 456.06 | 37/3.96 | 27.73 | 1257 | 75.40 | 0.0633 | 657 |
| Magnolia | 954 | 483.42 | 37/4.07 | 28.55 | 1333 | 80.00 | 0.0597 | 675 |
| Hawkweed | 1000 | 506.71 | 37/4.17 | 29.23 | 1396 | 83.80 | 0.0568 | 693 |
| Bluebell | 1033.5 | 523.68 | 37/4.24 | 29.72 | 1445 | 86.60 | 0.0551 | 706 |
| — | 1100 | 557.35 | 61/3.41 | 30.70 | 1539 | 96.10 | 0.0518 | 733 |
| Marigold | 1113 | 563.93 | 61/3.43 | 30.89 | 1559 | 97.20 | 0.0512 | 738 |
| Hawthorn | 1192.5 | 604.26 | 61/3.55 | 31.95 | 1670 | 104.10 | 0.0479 | 767 |
| — | 1200 | 608.06 | 61/3.56 | 32.08 | 1679 | 102.70 | 0.0476 | 771 |
| Narcissus | 1272 | 644.51 | 61/3.66 | 33.02 | 1781 | 108.80 | 0.0450 | 797 |
| — | 1300 | 658.71 | 61/3.70 | 33.37 | 1818 | 111.20 | 0.0440 | 807 |
| Columbine | 1351.5 | 684.84 | 61/3.78 | 34.01 | 1893 | 115.60 | 0.0423 | 825 |
| — | 1400 | 709.42 | 61/3.84 | 34.63 | 1958 | 117.40 | 0.0407 | 842 |
| Carnation | 1431 | 725.10 | 61/3.89 | 35.03 | 2004 | 119.90 | 0.0400 | 854 |
| — | 1500 | 760.06 | 61/3.98 | 35.85 | 2098 | 125.70 | 0.0381 | 877 |
| Gladiolus | 1510.5 | 765.35 | 61/3.99 | 35.99 | 2116 | 126.50 | 0.0377 | 881 |
| Coreopsis | 1590.5 | 805.68 | 61/4.09 | 36.91 | 2226 | 133.20 | 0.0358 | 907 |
| — | 1600 | 810.71 | 61/4.11 | 37.04 | 2238 | 134.10 | 0.0358 | 910 |
| — | 1700 | 861.42 | 61/4.23 | 38.15 | 2378 | 142.60 | 0.0335 | 942 |
| — | 1800 | 912.06 | 61/3.57 | 39.28 | 2521 | 153.90 | 0.0316 | 975 |
Key Features & Technical Advantages
CSA C49 Compliance — Canadian Regulatory Acceptance
CSA C49 certification is required for conductor procurement by Canadian utilities (Hydro-Québec, BC Hydro, Ontario Hydro, SaskPower, Manitoba Hydro, and others) and for projects subject to Canadian Electrical Code (CEC) and provincial utility regulations.
Includes Current Rating Table
Unlike ASTM B231 which omits ampacity, CSA C49 includes tabulated current rating values for every conductor size — a significant advantage for distribution line engineers who need a single-source design reference without additional CIGRE or IEEE thermal calculations for standard applications.
Canadian-Specific Round MCM Sizes
Round-number MCM sizes (400, 550, 800, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 MCM) are standard in Canadian utility infrastructure and absent from ASTM B231. These sizes are required for exact conductor replacement on existing Canadian-design overhead lines.
Lily 3 AWG — Canada-Only Size
Lily (3 AWG, 26.65 mm²) fills the gap between Rose (4 AWG) and Iris (2 AWG) — used in Canadian residential service drop and light distribution applications. This size is not listed in ASTM B231 and is unique to CSA C49 procurement.
Identical Material to ASTM B231
Same 1350-H19 hard-drawn aluminium, same 61% IACS conductivity, same concentric-lay construction as ASTM B231 — the CSA standard differs in its size series, ampacity table, and Canadian testing requirements, not in conductor material or electrical performance.
Cold-Climate Performance
Hard-drawn 1350-H19 aluminium maintains its mechanical properties at Canadian sub-arctic temperatures. The conductor's rated tensile strength applies across the operating temperature range from −40 °C winter extremes to +75 °C summer peak conductor temperatures.
CSA C49 vs ASTM B231 — Key Differences
| Parameter | CSA C49 (Canadian) | ASTM B231 (US) |
|---|---|---|
| Primary market | Canada (all provinces) | USA, Mexico, Latin America |
| Ampacity table included | Yes — in standard data table | No — calculated separately per IEEE 738 |
| Canada-specific sizes | Yes — 400, 550, 800, 1100–1800 MCM; Lily 3 AWG | No |
| Flower code words | Same convention (Aluminum Association Pub. 50) | Same convention |
| Conductor material | 1350-H19, ≥ 99.55% Al | 1350-H19 per ASTM B230 |
| Max. continuous temp. | 75 °C | 75 °C |
| Cross-reference | Compatible with ASTM B231 shared sizes | Compatible with CSA C49 shared sizes |
Certifications & Standards
Typical Applications
Canadian Utility Distribution
Primary distribution feeders (4–25 kV) for Hydro-Québec, BC Hydro, Ontario Hydro, SaskPower, and other provincial utilities — the primary application for CSA C49 AAC.
Residential Service Drops
Small-size CSA AAC (Rose 4 AWG to Lily 3 AWG to Oxlip 4/0 AWG) for residential and light commercial service connections in Canadian distribution systems.
HV Transmission Lines
Large CSA sizes (1000–1800 MCM) for high-voltage 115–500 kV transmission corridors across Canadian provinces — particularly where round-MCM sizes are specified in existing infrastructure.
Coastal BC & Maritime Canada
All-aluminium construction preferred over ACSR in coastal British Columbia, Nova Scotia, New Brunswick, and PEI where salt air accelerates ACSR steel core corrosion.
Northern & Sub-Arctic Lines
Lines in northern Ontario, Manitoba, Saskatchewan, Alberta, and northern territories — hard-drawn 1350-H19 maintains rated mechanical properties at −40 °C winter operating temperatures.
Canadian Line Replacement
Reconductoring and replacement of aged overhead lines on existing Canadian-design infrastructure — exact CSA size match ensures hardware and fitting compatibility without recalculation.
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Frequently Asked Questions
As a factory, we offer flexible MOQ depending on the cable type. For standard stock items, MOQ is low; for customized specifications, please contact our sales team for a detailed quote.
Yes, Qiangli cables are manufactured in compliance with international standards such as UL, CE, TUV, and VDE. We provide full test reports and certificates upon request.
Absolutely. We have a dedicated R&D team that can customize cable structure, material, color, and printing to meet your specific project needs.
For standard products, lead time is usually 7-15 days. For large-scale project orders or customized products, it typically ranges from 20 to 30 days.
Yes, we provide free samples for most standard cables. You only need to cover the international courier costs. Contact us to arrange your sample shipment.