MIL-DTL-24643C
(Copies of these documents are available from the National Electrical Manufacturers Association, 1300 North
th
17 Street, Suite 1847, Rosslyn, VA 22209 or online at www.nema.org.)
NAVAL ENGINEERING STANDARDS (NES)
NES 711
-
Determination of the Smoke Index of the Products of Combustion from
Small Specimens of Materials, Issue 2
NES 713
-
Determination of the Toxicity Index of the Products of Combustion from
Small Specimens of Material, Issue 3
(Copies of these documents are available from the Procurement Executive, Ministry of Defense, Ship
Department, Section TE112, Block G, Foxhill, Bath 5AB England.)
UNDERWRITERS LABORATORES INC. (UL)
UL 1581
-
Reference Standard for Electrical Wires, Cables, and Flexible Cords
UL 1685
-
Standard for Vertical-Tray Fire-Propagation and Smoke-Release Test for
Electrical and Optical-Fiber Cables
(Copies of these documents are available from COMM 2000, 1414 Brook Drive, Downers Grove, IL 60515 or
online at www.ul.com.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between
the text of this document and the references cited herein (except for related specification sheets), the text of this
document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless
a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with
the applicable specification sheet. In the event of any conflict between the requirements of this specification and the
specification sheet, the latter shall govern.
3.2 Qualification. Cables furnished under this specification shall be products that are authorized by the
qualifying activity for listing on the applicable qualified products list before contract award (see 4.3 and 6.5).
3.3 Materials. Materials used in construction of those cables furnished under this specification shall be in
accordance with the requirements shown in the applicable specification sheets and as follows. All materials shall be
halogen-free and have no more than 0.2 percent halogen content.
3.3.1 Conductor materials.
3.3.1.1 Copper conductors. Copper conductors shall be in accordance with ASTM B3.
3.3.1.2 Tin coating. Tin coating shall be in accordance with ASTM B33.
3.3.1.3 Nickel coating. Nickel coating shall be in accordance with Class 2 of ASTM B355
3.3.1.4 Thermocouple wire. Conductors for thermocouple cables shall be in accordance with ISA MC96.1.
3.3.2 Conductor construction.
3.3.2.1 Conductor stranding. The size and quantity of individual conductor strands and the total circular-mil
area of the conductor shall be in accordance with ASTM B8, B286, B173, B174, or B172 as specified in the
specification sheet. Navy standard sized conductors shall be in accordance with table I.
3.3.2.1.1 Concentric lay stranded. The length and direction of lay and the type and number of joints in
concentric lay stranded conductors shall be in accordance with ASTM B8 or B286 as applicable.
4
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business