Wir benötigen Ihre Einwilligung zur Verwendung der einzelnen Daten, damit Sie unter anderem Informationen zu Ihren Interessen einsehen können. Klicken Sie auf "OK", um Ihre Zustimmung zu erteilen.
Standard Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables
Automatische name übersetzung:
Standard-Spezifikation für Modified Concentric-Lay-Stranded Kupferleiter für den Einsatz in isolierten elektrischen Kabel
NORM herausgegeben am 1.4.2012
Bezeichnung normen: ASTM B784-01(2012)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.4.2012
SKU: NS-8108
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
copper conductors for insulated wires, copper modified concentric-lay-stranded, electrical copper conductors, ICS Number Code 29.060.20 (Cables)
1. Scope | ||||||||||||||
1.1 This specification covers bare modified concentric-lay-stranded conductors made from round copper wires, either uncoated or coated with tin, lead, or lead alloy for general use in insulated electrical cables. These conductors shall be constructed with a central core consisting of not more than seven wires, surrounded by one or more layers of helically laid wires. 1.2 For the purposes of this specification, conductors are classified as follows (Explanatory Note 1 and Note 2): 1.2.1 Class B Modified—Conductors to be insulated with various materials such as rubber, paper, and crosslink polyethylene. 1.2.2 Class C Modified and Class D Modified—Conductors where greater flexibility is required than is provided by Class B Modified conductors. 1.3 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining the values from the two systems may result in non- conformance with the specification. 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 AWG or kcmil, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. for conductor sizes designated by SI units only, the requirements are stated or derived in SI units. 1.3.1 For density, resitivity and temperature, the values stated in SI units are to be regarded as standard. Note 1—The significant differences in this specification from Specification B8 are as follows: (1) The central core is permitted to contain up to seven wires drawn into the assembly with an infinite length of lay while Specification B8 permits only one, and (2) The construction is applicable only to stranded assemblies of 19 or more wires. |
||||||||||||||
2. Referenced Documents | ||||||||||||||
|
Historisch
1.4.2010
Historisch
1.4.2010
Historisch
15.11.2011
Historisch
1.4.2012
Historisch
1.10.2011
Historisch
15.10.2012
Bereitstellung von aktuellen Informationen über legislative Vorschriften in der Sammlung der Gesetze bis zum Jahr 1945.
Aktualisierung 2x pro Monat!
Brauchen Sie mehr Informationen? Sehen Sie sich diese Seite an.
Letzte Aktualisierung: 2024-05-05 (Zahl der Positionen: 2 897 047)
© Copyright 2024 NORMSERVIS s.r.o.