Industry Standards for Passenger Transit, Rail Vehicle Specifications

Electrical


Materials

Various, materials are used in the manufacturing or installation of electrical components. The following entries supply standards for some of the more common materials.

Standard: IEC 326-3 - Design and Use of Printed Circuit Boards - Withdrawn
Purpose:

Part three of IEC 326 relates to the design and the application of a printed boards. This standard has been superseded by the following series:

IEC 61188-1-1 Bilingual Printed boards and printed board assemblies - Design and use - Part 1-1: Generic requirements - Flatness considerations for electronic assemblies

IEC 61188-1-2 Bilingual Printed boards and printed board assemblies - Design and use - Part 1-2: Generic requirements - Controlled impedance

IEC 61188-5-1 Bilingual Printed boards and printed board assemblies - Design and use - Part 5-1: Attachment (land/joint) considerations - Generic requirements

IEC 61188-5-2 Bilingual Printed boards and printed board assemblies - Design and use - Part 5-2: Attachment (land/joint) considerations - Discrete components

IEC 61188-5-6 Bilingual Printed boards and printed board assemblies - Design and use - Part 5-6: Attachment (land/joint) considerations - Chip carriers with J-leads on four sides

Criteria: Specify the standard name, general or specific criteria
Usage: ... shall comply with IEC 326-3, (criteria)
Standard: NEMA LI1 - Industrial Laminated Thermosetting Products
Purpose: This standard includes practical information concerning the manufacture, testing, and performance of laminated thermosetting products in the form of sheets, rods, and tubes used in the manufacture of electrical apparatus and supplies. They represent general practice in industry, and assist users in the proper selection of laminated thermosetting products. Various grades and standards are available within this specification.
Criteria: Specify the standard name, selection criteria
Usage: Printed circuit boards (PCBs) shall be of glass epoxy construction, complying with NEMA LI1, grade FR-4,
Standard: ASTM D2671 - Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use
Purpose: These test methods cover the testing of heat-shrinkable tubing used for electrical insulation. Materials used include poly(vinyl chloride), polyolefins, fluorocarbon polymers, silicone rubber, and other plastic or elastomeric compounds. This standard is frequently called out by wire and cable specifications, with specific physical test property requirements.
Criteria: Specify Standard, physical property test performance criteria
Usage: ASTM D2671, physical property test performance criteria
Standard: MIL-DTL-5015H - General Specification For Connectors, Electrical, Circular Threaded, And Type
Purpose:

This specification covers circular threaded electrical connectors with slaughter or removable crimp contacts (both front and rear release). These connectors are for use in electronic, electrical power, and control circuits.

Electrical connectors covered by this specification are divided into the various classes, series, and receptacle styles.

Criteria: Specify Standard, Class, series, and receptacle styles of connector (or general compliance)
Usage: ... shall conform to MIL-DTL-5015H (class, series, type)