ASTM B857 : 11e1

Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW)

Standard Details

1.1 This specification covers shaped wire compact concentric-lay-stranded aluminum conductors, steel supported (ACSS/TW) for use as overhead electrical conductors (see Explanatory Note 1).

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.2.1 Exceptions—For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units are numerically converted from the corresponding requirements in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units. For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard.

1.3 ACSS/TW is designed to increase the aluminum area for a given diameter of conductor by the use of trapezoidal shaped wires (TW), or to reduce the diameter for a given area of aluminum. The conductors consist of a central core of round steel wire(s) surrounded by two or more layers of trapezoidal aluminum 1350-0 wires. Different strandings of the same size of conductor are identified by type, which is the approximate ratio of steel area to aluminum area expressed in percent (see Table 1, Table 2, and Table 3). For the purpose of this specification, the sizes listed in Table 1 and Table 2 are tabulated on the basis of the finished conductor having an area or outside diameter equal to that of specified sizes of standard ACSR, ACSS, and ACSR/TW so as to facilitate conductor selection.

TABLE 1 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported^A

Note 1—Sized to have area equal aluminum cross-sectional area to an ACSR or ACSS, Class AA conductor.

ACSS/TW Conductor Size		Code Word^B	Size and Stranding of ACSS with Equal Aluminum Cross-Sectional Area		Aluminum Stranding		Steel Core Stranding		Nominal Mass ACSS/TW	ACSS/TW Conductor Rated Strength (by type of steel core wire)						Nominal Outside Diameter
kcmil^C	Type	Code Word^B	kcmil	Stranding	Number of Aluminum Wires	Number of Layers	Number of Wires	Individual Strand Wire Diameter, in.	GAX Core lb/1000 ft	GA2 / MA2 KIPS	GA3 / MA3 KIPS	GA4 / MA4 KIPS	GA5 / MA5 KIPS	AW2 KIPS	AW3 KIPS	in.
266.8	16	Partridge/ACSS/TW	266.8	26/7	18	2	7	0.0788	349	8.90	9.70	10.8	11.4	8.40	8.90	0.58
336.4	23	Oriole/ACSS/TW	336.4	30/7	17	2	7	0.1059	526	14.8	16.3	18.2	19.1	14.2	14.8	0.69
477.0	13	Flicker/ACSS/TW	477.0	24/7	18	2	7	0.0940	612	13.0	14.2	15.7	16.4	12.5	13.0	0.78
477.0	16	Hawk/ACSS/TW	477.0	26/7	18	2	7	0.1053	655	15.6	17.1	18.9	19.8	14.9	15.6	0.79
477.0	23	Hen/ACSS/TW	477.0	30/7	17	2	7	0.1261	746	21.0	22.7	25.4	26.7	20.1	20.5	0.83
556.5	13	Parakeet/ACSS/TW	556.5	24/7	18	2	7	0.1015	714	15.2	16.6	18.3	19.1	14.6	15.2	0.84
556.5	16	Dove/ACSS/TW	556.5	26/7	20	2	7	0.1138	764	19.9	18.2	22.1	23.1	17.5	18.2	0.85
636.0	13	Rook/ACSS/TW	636.0	24/7	18	2	7	0.1085	818	19.0	17.3	20.9	21.9	16.7	17.3	0.89
636.0	16	Grosbeak/ACSS/TW	636.0	26/7	20	2	7	0.1216	873	22.4	20.7	24.8	26.0	19.9	20.3	0.91
795.0	7	Tern/ACSS/TW	795.0	45/7	17	2	7	0.0886	891	15.2	14.2	16.6	17.5	13.5	14.2	0.96
795.0	10	Puffin/ACSS/TW	795.0	22/7	18	2	7	0.1108	974	20.6	18.9	22.6	23.7	18.3	18.9	0.98
795.0	13	Condor/ACSS/TW	795.0	54/7	20	2	7	0.1213	1020	23.3	21.7	25.7	26.9	20.9	21.3	0.99
795.0	16	Drake/ACSS/TW	795.0	26/7	20	2	7	0.1360	1091	28.0	25.9	31.0	32.5	24.4	25.4	1.01
795.0	23	Mallard/ACSS/TW	795.0	30/19	22	2	19	0.0977	1234	37.9	34.3	42.1	44.3	32.9	34.3	1.05
954.0	5	Phoenix/ACSS/TW	954.0	42/7	30	3	7	0.0837	1028	15.2	14.2	16.3	17.1	13.6	14.2	1.05
954.0	7	Rail/ACSS/TW	954.0	45/7	32	3	7	0.0971	1074	18.0	Status : Historical Standard Type: Main Document No: ASTM B857 : 11e1 Document Year: 2011 Pages: 8 Edition: e1 Section Volume: 02.03 Volume 02.03 Electrical Conductors ICS: 29.060.10 Wires Preview Document Life Cycle Historical ASTM B857 : 14 Historical ASTM B857 : 18 ACTIVE ASTM B857 : 22 Currently Viewing Historical ASTM B857 : 11e1 Historical ASTM B857 : 11e2 Historical ASTM B857 : 11 Historical ASTM B857 : 09 Historical ASTM B857 : 02 Historical ASTM B857 : 01a Historical ASTM B857 : 01 Historical ASTM B857 : 95 Knowledge Corner Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information! The Corporate About BSB Edge Vision & Mission Our Journey - Milestones Our Clientele CSR Activities Contact Us Useful Links FAQ’s Privacy Policy Terms & Conditions Products & Services ASTM Book of Standards ASME BPVC 2023 ASME Boiler and Pressure Vessel Code - Revision Tracker with Synopsis (RTwS) eCatalogs / eBrochures Free Downloads Standards e-Pedia Standards By Publisher ACI Standards AFNOR Standards AIAG Standards API Standards ASHRAE Standards ASM Standards ASME Standards ASNT Standards ASTM Standards AWWA Standards Read More Connect With US Support Desk Customer Feedback News and Events © Copyright 2024 BSB Edge Private Limited. Add Standards To Trackedge To add “” to our tracker and get updates about it as and when it changes, kindly LOGIN, REGISTER or JUST ENTER YOUR EMAIL ID in below field so that we keep you informed about changes to the standards of your interest. This document is available for free download. Free documents cannot be added to the cart. Please download the Document using this link. Enquire now + Enquiry Form Full Name E-mail Address Phone Organisation Select Enquiry Type This Website Uses Cookies to Manage Services The BSB Edge Pvt. Ltd. takes your privacy very seriously and respects the importance of security on the internet. BSB Edge websites use cookies and similar technologies for various purposes including to distinguish you from other users of our websites. By continuing to use our websites, you agree to our cookie policy. What cookies do we use? Cookies are text files containing small amounts of information. They are downloaded to your computer or device when you visit a website. They don’t tell us who you are but they do enable us to recognise your device and where you have made various preferences or actions they enable us to remember them. Why do we use cookies? Cookies do lots of different jobs, like letting you navigate between web pages efficiently, remembering your preferences, and generally improving your experience of our websites. They can also help to ensure that adverts you see online are more relevant to you and your interests. Disabling cookies BSB Edge websites are designed to function optimally with cookies enabled. You can, however, disable cookies via your website browser settings. This may mean, however, that you may no longer have access to some of our website features. Please note that even with all cookies disabled, a tiny amount of information will continue to be retrieved from your web browser. This information is necessary for the basic functioning of our website. Contact us If you have any questions about our cookie policy you can contact us at: info@bsbedge.com

ASTM B857 : 11e1

Standard Details

Life Cycle

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