1、GM DAEWOO Auto & Technology EDS Engineering GM DAEWOO Auto & Technology Standards CONTACT MECHANISM FOR FLAT CONDUCTOR CONTACYING Do Not Use on New Programs. Being Replaced by GMW3172 EDS-T-5213 ISSUED DATE: 1981. 01. 04 REVISED DATE: 2008. 10. 21 VERSION: 3 (Superceded) EDS-T-5213CONTACT MECHANISM
2、FOR FLAT CONDUCTOR CONTACTING PAGE: 1/4 ISSUED DATE: 1981. 01. 04 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. T255 Program). It is Superceded for all future projects and replaced by GMW3172 1. PURPOSE This test
3、spec. defines the general test conditions for contact machanism for flat condutor contacting (called shortly “contact“ in the following). Test specifications, material spec.s, form, dimension and surface treatment to be applied are to be noted from the drawing. 2. TEST QUANTITY For sampling, respect
4、ively 20 contacts are to be tested, which should be fixed preferably to leads corresponding to the usage in the car. The quantity of test sample for the quality check is defined by the input inspection. 3. NOTE Samples of materials released to this specification shall be tested for conformity with t
5、he requirements of this spec. and approved by Product Engineering Department prior to commencement of delivery of bulk supplies. In the event of any intentional deviations from the requirements of this spec., it is the sole responsibility of the supplier to inform the purchaser of all such deviation
6、s. Furthermore the supplier shall submit unsolicited samples for reapproval by Product Engineering Department prior to commencement of delivery of deviant bulk supplies. 4. APPLICATION OF CONTACTS The contacts serve for the direct, one - sided contracting of flexible and rigid flat conductor rails i
7、n the raster size of 5.72 mm. 5. DELIVERY STATE The contacts are fixed on the cable and supplied with plug housings which are mounted or loose, belonging them for sampling. Parts with smooth surface, free of burr, without cracks, folds or grooves. The posting of the contacts to the conductor results
8、 with special pin stenters or hand pliers. The traction relief must firmly encircle the lead. EDS-T-5213CONTACT MECHANISM FOR FLAT CONDUCTOR CONTACTING PAGE: 2/4 ISSUED DATE: 1981. 01. 04 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 1 2 Cross section of conductor mm2 min. withdr
9、awing force in N 0.5 0.75 1 90 130 180 6. MECHANICAL REQUIREMENTS 6.1. Extracting force contact / housing The force to be spended for the extraction of the contact from the housing must come to min. 45 N. 6.2. Extracting force of the fixed conductor from the crimp connection The Withdrawing force of
10、 the fixed conductor from the crimp connection of the contact is determined by a tension test by means of tensile - testing machine with a grip speed of 100 mm/min. For the determining of the withdrawing force, the fitting plates for the wire insulating must be loosened. Withdrawing forces of the cr
11、imp connections. 6.3. Initial stress of spring of the contact For the perfect contacting, the contact spring of the contact must be prestressed by 0.8 mm min. in the insterted state. The maximal permissible initial stress comes to 1.2 mm. 6.4. Range of wire strength The maximal permissible cross sec
12、tion of wire which is fixable to the contact comes to 1 mm2. 6.5. Housing for manifold plug connection The manifold plug housing must lock in the full - inserted state. The type of catch is exposed, it must however be easily detachable without corrosion. EDS-T-5213CONTACT MECHANISM FOR FLAT CONDUCTO
13、R CONTACTING PAGE: 3/4 ISSUED DATE: 1981. 01. 04 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 7. CORROSION TEST (FOR INNER PARTS) Condenser - water clmatic test to EDS-T-7005 - D1 - GRADE 3. Testing time “1“ = (2 24) h with an hour drying time in between. Stage 3 = Subsequently
14、to the climatic test the voltage - drop tests to Pt. 7.1 and 7.2 are to be performed. 8. ELECTRIC REQUIREMENTS 8.1. Drop in voltage between contact and conductor rail. The voltage drop between contact and conductor rail is to be determined at 2 A stress and tr = +23 5K (S. Fig.). Permissible voltage
15、 drop : 30 mV. 8.1.1. Arrangement of measuring points at inflexible flat conductors Insulating material * Material & surface protection as used in the car. 8.1.2. Arrangement of the measuring points at flexible flat conductor. EDS-T-5213CONTACT MECHANISM FOR FLAT CONDUCTOR CONTACTING PAGE: 4/4 ISSUE
16、D DATE: 1981. 01. 04 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 8.2. Voltage drop between lead and contact The voltage drop between lead and contact is to be determined at 2 A stress and tr = +23 5K.(S. Fig.) Permissible drop in voltage : 7 V. 8.3. Electric loading capacity Th
17、e electric loading capacity of a contact depends in essence on the width and the heat - abstracting capacity of the contact on the flat conductor rail. The stress is thus correspondingly to be measured. The width of conductor rail must be so selected that a current density of 35 A/mm2is not exceeded under workable continuous load.
