The EMPF offers operator proficiency training for IPC/WHMA-A-620. This specification describes the accept and reject criteria for producing crimped, mechanically secured or soldered interconnections as well as the lacing and restraining criteria related to cable and wire harness assemblies.
The duration of the training program can range from 1 to 3 days, depending on the modules selected. Proficiency is determined through a series of written, standardized exams developed by the IPC/WHMA. Operators will be tested on each module in which they are trained and will receive a portable certification (valid for 2 years) in the areas where proficiency is demonstrated. Following is a brief description of each of the modules available.
Modules 1 and 2 (prerequisites for modules 3 - 18)
Modules 1 and 2 cover the purpose and scope of the document, general criteria, and related applicable industry specifications. Students will learn how to properly interpret the acceptability requirements, understand the differences between the classes of electronics, and become familiar with commonly used terminology. Companies can select additional training for the various other cable and wire assembly acceptance requirements.
Module 3 - Preparations
Module 3 covers the allowable amount of conductor strand damage, wire separation, and insulation damage.
Module 4 - Solder Terminations
Module 4 covers the requirements for tinning and gold removal of wires, cleanliness, insulation, flexible sleeve insulation, wire separation, wire attachment, and solder requirements for wires attached to common terminals.
Module 5 - Crimp Terminations
Module 5 covers the requirements and allowable deformation for stamped/formed contacts and machined crimp contacts.
Module 6 - Insulation Displacement Connections (IDC)
Module 6 covers the acceptance criteria for mass termination, flat cable, and discreet wire terminations.
Module 7 - Ultrasonic Welding
Module 7 covers insulation clearance and weld nugget criteria.
Module 8 - Splices
Module 8 covers soldered splices, crimped splices, and ultrasonic welded splices.
Module 9 - Connectorization
Module 9 covers acceptance criteria for hardware mounting, strain relief, sleeving, boots, and allowable amount of connector damage.
Module 10 - Molding Potting
Module 10 covers the requirements for molding and potting of cables and wires.
Module 11 - Cable Assembly and Wires
Module 11 covers the identification of reference designators and surfaces and how to properly measure wire lengths.
Module 12 - Marking and Legibility
Module 12 covers the requirements for marking content, legibility, permanency, location, functionality, and marker sleeves.
Module 13 - Coaxial and Twinaxial Assemblies
Module 13 covers the requirements for stripping, center conductor terminations, solder ferrule pins, coaxial connectors, terminal covers, shield terminations, center pin position, semi-rigid coax, swage-type connector, and soldering and stripping of biaxial or twin axial wires.
Module 14 - Wire Bundle Securing
Module 14 covers the proper tie wrap and lacing application, requirements for wire breakouts, and wire bundles.
Module 15 - Shielding
Module 15 covers the requirements for electrical shielding. Operators will learn requirements for braided shielding, shield termination, proper tape wrapping, conduit shielding, conductive coating, and shrink tubing.
Module 16 - Cable and Wire Harness Protective Coverings
Module 16 covers protective coverings used for cable and wire harness assemblies. Subjects include braid, taping, sleeving, and spiral plastic wrap.
Module 17 - Installation
Module 17 covers the requirements for installation of hardware and wire harness installation. Operators will learn the proper assembly sequence for hardware and the stress relief required for wires.
Module 18 - Solderless Wrap
Module 18 covers the acceptance requirements for solderless wrap connections. Topics include number of turns, turn spacing, end tails, insulation wrap, raised turns, connection position, wire dress, wire slack, plating, and damage.
Employees who attend a regimented training program will be better equipped to recognize acceptable products from defective ones. For further information, please contact the EMPF registrar at (610) 362-1295 or registrar@empf.org.
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