REG NASA-LLIS-0850-2000 Lessons Learned Electrical Connector Protection.pdf

1、Best Practices Entry: Best Practice Info:a71 Committee Approval Date: 2000-04-0a71 Submitted by: Wilson HarkinsSubject: Electrical Connector Protection Practice: Protect the receptacles/plug ends of demated electrical connections with covers provided by manufacturer or with generic plastic caps or i

2、f covers are unavailable, leave in downward facing position.Programs that Certify Usage: This practice has been used on the Space Transportation System (STS)Implementation Method: This Lesson Learned is based on Maintainability Technique number OPS-02 from NASA Technical Memorandum 4628, Recommended

3、 Techniques for Effective Maintainability.Moisture collects in the bag when the double-bag-and-seal method is used. This can lead to corrosion of the connector or possible electrical shock when the connector is reused. The use of plastic caps or manufacturers covers will prevent moisture buildup, th

4、us alleviating potential hardware damage or injury.This practice can be implemented in two ways:a71 Provide instructions in operations and maintenance documents for protecting the connector after use. (A step should be included to inspect the connectors for corrosion/debris and provide direction for

5、 corrosion/debris removal, if necessary.) If ESD is a concern, do not use generic plastic caps as they can be ESD generators. ESD-approved caps should be used.a71 Provide placard or tag on or near connector, stating method to leave connector after use.Reference:Provided by IHSNot for ResaleNo reprod

6、uction or networking permitted without license from IHS-,-,-1. Guide for Design Engineering of Ground Support Equipment. KSC-DE-512-SM, Rev. BImpact of Non-Practice: If the proper method of protection is not used when connectors are demated, there is the possibility of electrical shock to personnel

7、connecting receptacles/plug ends, and increased surface corrosion rate due to environmental effects.Related Practices: N/AAdditional Info: Approval Info: a71 Approval Date: 2000-04-0a71 Approval Name: Eric Raynora71 Approval Organization: QSa71 Approval Phone Number: 202-358-4738Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-