1、UDC 621.31 5.68 : 001.4 : 620.1 DEUTSCHE NORM April 1986 Solderless electrical connections Clip connections Term in ol ogy, req u i rem ents, test ng - DIN - 41 611 Part 4 1 Lotfreie elektrische Verbindungen; Klammerverbindungen; Begriffe, Anforderungen, Prfungen In keeping with current practice in
2、standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. The field of application of this standard is not otherwise covered in regional or international standards. This standard affects proprietory rights; information is
3、 supplied by the Deutsche Elektrotechnische Kommission im DIN und VDE (DKE) (German Electrotechnical Commission of DIN and VDE), Stresemannallee 15, 0-6000 Frankfurt am Main 70. This standard is part of a series of standards on solderless electrical connections listed below. DIN 41 61 1 Part 1 DIN 4
4、1 61 1 Part 2 DIN 41 61 1 Part 3 DIN 41 61 1 Part 5 DIN 41 61 1 Part 6 DIN 41 61 1 Part 7 ) DIN 41 61 1 Part 9 ) Solderless electrical connections; terminology, climatic categories; general methods of measurement and testing Solderless electrical connections; wrapped connections; terminology, requir
5、ements, methods of test Solderless electrical connections; crimp connections Solderless electrical connections; push-in connections; terminology, requirements, methods of test Solderless electrical connections; insulating piercing connections; terminology, ratings, requirements, testing Solderless e
6、lectrical connections; spring terminal connections; terminology, requirements, methods of test Solderless electrical connections; modified wrapped connections; terminology, requirements, methods of test Dimensions in mm Contents Page 1 Field of application. 2 2 Scope 2 3 Concepts 2 3.1 Insertion too
7、l 2 3.2 Extraction tool 2 4 Designation 2 5 Ratings . 2 5.1 Climatic rating . 2 5.2 Electrical rating (current-carrying capacity) 3 5.3 Mechanical strength . 3 6 Requirements 3 6.1 Posts . 3 6.2 Conductors . 7 Page 6.3 Clips . 7 6.4 Clipconnection 8 7 Testing . 8 7.1 Conditioning 8 7.2 Mechanical te
8、sting 8 7.4 Climatic testing 9 against chemical attack .IO 7.3 Electrical testing. . 9 7.5 Testing the resistance of surfaces 7.6 Testing for ease of displacement .IO 8 Test schedules 10 8.1 General 10 8.2 Test schedule for components . 10 8.3 Basic test schedule 11 8.4 Full test schedule .Il Append
9、ix A . .I3 1) At present at the stage of draft. Continued on pages 2 to 14 Beuth Verlag GmbH. Berlin has the exclusive right of sale for German Standards (DIN-Normen) DIN 4 1 61 1 Part 4 Engl. Price group 10 03.87 Sales No.01 i0 Page 2 DIN 41 61 1 Part 4 1 Field of application This standard applies
10、to solderless electrical clip connec- tions with conductors. It includes recommendations for materials to be used. 2 Scope This standard is intended to specify concepts, require- ments and methods of test for the assessment of complete clip connections and theircomponents. it is also intended to ens
11、ure that reproducible test results are achievedif clip connections and the associated tools are manufactured by different manufacturers. In order to avoid placing restrictions on manufacture, no attempt has been made to specify the manufacturing process or the tools to be used. 3 Concepts The concep
12、ts used in this standard are equivalent to those established in I EC 50 Part 581. 3.1 Insertion tool For the purpose of this standard, an insertion tool is a tool, which, once the conductor has been introduced into it, simultaneously completes insulation and pushes the clip and conductor onto the cl
13、ip post (subsequently referred to simply as post). 4 Designation 3.2 Extraction tool For the purposes of this standard, an extraction tool is a tool used to remove a clip from a post. Figure 1. Clip connections (example) Note. Further data is required for the extension of the designation to an order
14、 designation. B denotes a code letter, N a number. clip connection -1 DIN number Part number Symbol denoting post (see table 2) Shape of post tip (style A or B) (see subclause 6.1.3.5) Term DIN41 611 -4- NN - Post without hole (code letter A) Post with hole (code letter B) (see subclause 6.1.3.5) Ty
15、pe of wire accepted (see table 1) - N,r - dN- N _ Core diameter for single core wires Conductor cross section for stranded wires (see table 8) Nominal outside diameter of insulation (see table 8) Table 1. Code letters for type of wire accepted A Single core wire B Stranded wire Designation of a clip
16、 connection as specified in DIN 41 61 1 Part 4 (4), consisting of a clip as specified in subclause 6.3, a post with a nominal cross section of 0,8 X 1.6 (16), with a style A post tip, without a locating hole (A), for a conductor diameter of 0,50 mm and a nominal outside diameter of the insulation of
17、 1 ,I mm (1 ,I) : Clip connection DIN 41 61 1 - 4 - 16 - A - A - 0,50 - 1,l Designation of a post for clip connections complying with DIN 41 61 1 Part 4 (4) with a nominal cross section of 0,8 X 1,6 (1 61, .with a style A post tip, without locating hole (A) : Note. Only the 0,8 X 2,4 post can be sup
18、plied with or without locating hole. 5 Ratings 5.1 Climatic rating The selection of the climatic category for clip connections is primarily determined by the spring characteristics of the clip (see subclause 6.4.5). Clip post DIN 41 61 1 - 4 - 16 - A - A DIN 41 611 Part 4 Page 3 Post size o9 16 5.2
19、Electrical rating (current-carrying capacity) The current-carrying capacity shall be determined as specified in DIN 41 640 Part 3. Note. The current-carrying capacity of a clip connection is a function of the properties of the clip, the post and the connected conductor. 5.3 Mechanical strength The m
20、inimum pull-off strength of the connection shall be determined by applying a pull-off force (see subclause 6.4.6.1 ). a b 0,90: copper-tin alloys; copper-nickel -zi nc al I oys; copper-beryllium alloys; nickel-copper alloys. Vickers hardness: 150 HV 30 to 220 HV 30, determined in accordance with DIN
21、 50 133. 6.1.2 Surface finish The surface of posts is not required to be provided with a particular finish. It may however be provided with a protective coating. The following finishes shall be deemed suitable for this purposes: nickel-plated; layer thickness: 0,75 8 pm; galvanized, preferably hot-d
22、ip galvanized; layer thickness: 2; pm; gold-plated; maximum layer thickness: 0,3 bm. The coatings shall adhere securely and be clean, smooth and free from blisters and swelling. Where an electrotinning process is used, care shall be taken to ensure compatibility with the base material, to avoid whis
23、ker formation. The surface roughness, Ra, shall be between 0,8 pm and 0.2 pm, as specified in VDI/VDE 2601 Part 1. automatic wiring of circuits. 7- I b Figure 2. Post cross section 6.1.3 Dimensions 6.1.3.1 Post cross section See figure 2. 6.1.3.2 Post length The post length, L4, shall be such that t
24、he required number of clip connections can be made. The post length is to be calculated from : L,=L=+S3 The minimum virtual clip contact width, La, is to be calculated for the case of three clips from : L,=3XL, +2xs, 2.4 k 0.05 + 0,008 0,8- 0,025 coating. The useful length, L3, is to be calculated f
25、or the case of three clips from: L3 = L, +s, Surface accessible to the insertion tool i l II- L3 1 Figure 3. Post length In figure 3, LI is the clip length (see table 3); L2 is the minimum virtual contact width for a number of L3 is the useful length; L4 is the post length (length recommended in tab
26、le 3); S, is the distance between neighbouring clips (see S2 is the distance between the clip and the tip of the clips; table 3); post, as required by the insertion tool. Page 4 DIN 41 61 1 Part 4 SI S32) min. min. Post size L1 max. Table 3. s2 L4 min. 10.5 o9 16 3 0,5 0,8 1.5 13 4,7 0,5 1,7 25 20 *
27、I S3 = distance between the lowest clip and the surface =diameter of the insulation on the conductorselected. - 6.1.3.3 Edge radius and burr The maximum edge radius, r, shall be 0,08 mm. The maximum burr height, h, shall be 0,04 mm. Tolerance on parallelism, f Post size ta tb o9 0,033 0,1 16 0,033 0
28、,16 24 0,033 0,26 Figure 4. Edge radius and burr Tolerance on flatness, d 0,13 0.1 3 0,13 6.1.3.4 Parallelism, flatness The tolerance on parallelism of the contact surfaces over length L3 shall not exceed the values of ta specified in table 4 (see figure 5); the post shall not taper in the direction
29、 of insertion. The tolerance on parallelism of the non-contacting surfaces shall not exceed the values of tb specified in table 4. The tolerance on flatness of the contact surfaces over length L, shall not exceed the values of d specified in table 4 (see figure 6). o Figure 5. Tolerance on paralleli
30、sm Figure 6. Tolerance on flatness DIN 41 611 Part 4 Page 5 o9 6.1.3.5 Post tips The tip of the post shall be designed as illustrated in figure 7 or figure 8. 0,8 mm X 2,4 mm post with optional locating hole for push-on contact, complying with DIN 46 330 Part 1, see clause 4. 0,25 f 0,07 0,43 f 0,l
31、0,55 1,2 k 0,4 Figure 7. Post tip, style A 16 24 Table 5. 0.4 +0,1 1,02 oy0.12 0,65 1,8f0,8 0,4 f0.1 132 I0,12 0,9 1 , f 0,8 16 I e2 Post size I I - -4 El- k. r Figure 8. Post tip, style i3 Page 6 DIN 41 611 Part 4 Post size o9 16 24 el e2 17 tb +0,1 +0,1 O 0.25 - 0.02 0,35 1.3 o, 1 + 0.006 04 :$82
32、039 1.6 0,16 0-4 1,4 1,6 0.26 +O05 Post size o9 16 24 6.1.4.2 True position tolerance Where posts are used for wiring both by hand and automatically, the tip of the post shall not deviate from the theoretical location of the grid intersection by more than 1/2 X 2, as specified in table 7. The tips o
33、f the posts in the wiring area shall not exceed the tolerance on height e specified in table 7 (see figure IO). Maximum True position tolerance, 2 permissible load in the longitudinal direction of the Lin 3, on height, e post, in N (post tip as illustrated in figure IO) Centre line distance of posts
34、, Tolerance Wiring by machine 80 1 0,86 23 0,57 150 15 1,26 3,75 0,64 180 1,s 1,26 5 0,64 Wiring by hand El Plane accessible to the insertion tool, e.g. printed wiring board, plug connector I Tolerance on height +.-+F+ of post tips Figure 9. True position tolerance Plane accessible to the insertion
35、tool, e.g. printed wiring board, plug connector Figure 10. Tolerance on height DIN41 611 Part4 Page7 6.1.4.3 Centre line distances The centre line distance of the posts, t (see figure 9). shall be as specified in table 7. 6.2 Conductors Clip connections may be made with jumper wire or 7 stranded jum
36、per wire. See DIN VDE 0881 for tolerances. 6.2.1 Materials, surface In accordance with the requirements shown in table 8, wires and stranded wires complying with DIN VDE 0881 are recommended for clip connections, except for types 7Y, Li7Y, YV 4Y and LiY 4Y wires complying with DIN VDE 0881, and FEP
37、two layer insulation wires. Note. It is recommended that suitability testing be carried out in the case of elevated operating temperatures before certain materials are used. Conductors which are made of materials other than E-Cu 58 F 21 complying with DIN 40 500 Part 4 may be used for clip connectio
38、ns, the thermal and metallurgical properties and compatibility with the material of the post and clip being a determining factor. They shall be tested in accordance with the full test schedule. 6.2.2 Diameter Suitable conductor nominal outside diameters and the allocation of these to the posts are l
39、isted in table 8. The tolerance on the diameter of conductors shall be selected in accordance with the clip and the insertion tool. Table 8. I Solid or stranded jumper wire 1 Post size I I I I I l I I Diameter, d Cross-sectional area, Outside diameter A, in mm2 of insulating sleeve, d 16 24 I o9 I 0
40、.32 to 0.78 0,079 to 0,340 0,56 to 1,58 0.50 to 0.99 0.1 96 to 0,560 0,74 to 1,65 Bright, tinned, silvered 0,27 to 0,39 I -0,035 to 0,079148 Gr1 16 24 1,7 2 23 4,7 2,s 3,1 3,4 6,35 6.3 Clips 6.3.1 Materials Copper-tin alloys shall be used for the clips, e.g. CuSn6. 6.3.2 Surface finish Clips shall b
41、e provided with a protective coating. The following finishes shall be deemed suitable for this purpose : - nickel plated; minimum layer thickness: 0.75 pm - tin plated, preferably hot-dip galvanized; minimum - gold, plated; maximum layer thickness: 0,3 bm. The surface coatings shall adhere securely
42、and be clean, smooth and free from blisters and swelling. Cut edges may be bright. Where an electrotinning process is used, care shall be taken to ensure compatibility with the base material, to avoid whisker formation. The surface roughness, Ra, shall be between 0,8 pm and 0.2 pm (as specified in V
43、DI/VDE 2601 Part 1). 6.3.3 Design and dimensions The design of clips shall be such that - it is possible to displace the clip in the longitudinal direction (see subclause 6.4.2); the location of the wire or 7-stranded wire in the clip and the spring behaviour of the clip shall not be altered by this
44、 displacement, nor shall the insulation be damaged; - the clip encloses the post symmetrically when pushed on or down; layer thickness: 2 pm - the distance specified in subclause 6.1.3.2 between neighbouring clips is maintained; - the clips do not exceed the dimensions specified in table 9 after the
45、 clip connection has been made (see figure 11). Table 9. f = height of clip without insulation retention g = height of clip with insulation retention II = clip length k = clip width Figure 11. Clips Page 8 DIN 41 61 1 Part 4 o9 16 6.4 Clip connection Insertion tools and extraction tools shall be use
46、d in accordance with the tool manufacturers instructions. 6.4.1 Dismantling of clip connection A clip connection may be dismantled by bending the clip by means of the extraction tool. The clips are damaged in this procedure and shall not be used again. A new connection may be made on the post with a
47、 new clip, although it is not recommended that the stripped end of the conductor be used again. 6.4.2 Displacement of clip It shall be possible to slide a clip in the longitudinal direction of the post by the distance s = 2 X (L7 + s2). in accordance with subclause 6.1.3.2. The requirements specifie
48、d in subclause 6.4.3 and subclause 6.4.8 shall continue to be fulfilled. Note. It is necessary to be able to slide the clip in order to accomodate new clips by freeing the upper part of the post when there are changes in the wiring circuit. 6.4.3 Contact zone of clip connection After conditioning in
49、 a test atmosphere as specified in subclause 7.5 and removal of the clip, there shall be a colour contrast between the contact zone and the remainder of the surface. The zone of the surface which has not been discoloured (contact zone) shall at least correspond to the cross-sectional area of the connected conductor. 6.4.4 Assembly clip connection Only one conductor shall be connected with one clip. The clip connection shall not exceed the dimensions specified in table 9. The wire or 7-stranded wire shall be passed completely under the clip and shall be clearly visible at the
