kSIST FprEN 50483-4:2025

SLOVENSKI STANDARD
oSIST prEN 50483-4:2024
01-december-2024
Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 4.
del: Spojke
Test requirements for low voltage aerial bundled cable accessories - Part 4: Connectors
Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 4:
Verbinder
Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension
torsadés - Partie 4: Connecteurs
Ta slovenski standard je istoveten z: prEN 50483-4
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
oSIST prEN 50483-4:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 50483-4:2024
oSIST prEN 50483-4:2024
EUROPEAN STANDARD DRAFT
prEN 50483-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2024
ICS 29.240.20 Will supersede EN 50483-4:2009
English Version
Test requirements for low voltage aerial bundled cable
accessories - Part 4: Connectors
Prescriptions relatives aux essais des accessoires pour Prüfanforderungen für Bauteile für isolierte
réseaux aériens basse tension torsadés - Partie 4: Niederspannungsfreileitungen - Teil 4: Verbinder
Connecteurs
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2025-01-03.

It has been drawn up by CLC/TC 20.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 79846 Ref. No. prEN 50483-4 E

oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
Contents Page
1 European foreword . 3
2 Introduction . 4
3 1 Scope . 5
4 2 Normative references . 5
5 3 Terms and definitions . 5
6 4 Symbols . 7
7 5 Characteristics . 7
8 6 Marking . 8
9 7 General test conditions . 8
10 7.1 Generalities . 8
11 7.2 Preconditioning of ABC . 8
12 8 Type tests . 8
13 8.1 IPC tests. 8
14 8.2 Pre-insulated through connectors (sleeve) . 23
15 8.3 Pre-insulated terminals (lugs) . 34
16 Annex A (informative) Temporary connectors – Temperature rise and overload test . 40
17 A.1 Principle . 40
18 A.2 Test arrangement . 40
19 A.3 Procedure . 42
20 Bibliography . 44

oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
21 European foreword
22 This document [prEN 50483-4:2024] has been prepared by WG 11 of CLC/TC 20 “Electric cables”.
23 This document is currently submitted to the Enquiry.
24 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
25 This document will supersede EN 50483-4:2009 and all of its amendments and corrigenda (if any).
26 prEN 50483-4:2024 includes the following significant technical changes with respect to EN 50483-4:2009:
27 This is Part 4 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable
28 accessories”, which has six parts:
29 — Part 1: Generalities;
30 — Part 2: Tension and suspension clamps, fittings and brackets for self supporting system;
31 — Part 3: Tension and suspension clamps for neutral messenger system;
32 — Part 4: Connectors;
33 — Part 5: Electrical ageing test;
34 — Part 6: Environmental testing.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
35 Introduction
36 The objective of the EN 50483 series is to provide a method of testing the suitability of accessories when used
37 under normal operating conditions with low voltage aerial bundled cables (ABC) complying with HD 626.
38 This European Standard does not invalidate existing approvals of products achieved on the basis of national
39 standards and specifications and/or the demonstration of satisfactory service performance. However, products
40 approved according to such national standards or specifications cannot directly claim approval to this
41 European Standard. It may be possible, subject to agreement between the customer and the manufacturer
42 and/or the supplier, and/or the relevant conformity assessment body, to demonstrate that conformity to the
43 earlier standard can be used to claim conformity to this standard, provided an assessment is made of any
44 additional type testing that may need to be carried out. Any such additional testing that is part of a sequence
45 of testing cannot be done separately.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
46 1 Scope
47 EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled
48 cables (ABC) of rated voltage U /U (U ): 0,6/1 (1,2) kV.
0 m
49 This Part 4 applies to connectors used for the electrical connection of ABC.
50 The connectors are designed to be installed where either the main and/or branch cable is ABC as defined by
51 HD 626.
52 Tests described in this document are type tests.
53 2 Normative references
54 The following documents are referred to in the text in such a way that some or all of their content constitutes
55 requirements of this document. For dated references, only the edition cited applies. For undated references,
56 the latest edition of the referenced document (including any amendments) applies.
57 EN 50182, Conductors for overhead lines - Round wire concentric lay stranded conductors
58 EN 50483-1:2024, Test requirements for low voltage aerial bundled cable accessories
59 EN 50483-5:2024, Test requirements for low voltage aerial bundled cable accessories
60 EN 50483-6:2024, Test requirements for low voltage aerial bundled cable accessories
61 EN 60529:1991, Degrees of protection provided by enclosures (IP Code)
62 HD 626, Overhead distribution cables of rated voltage U /U(U ): 0,6/1 (1,2) kV
o m
63 IEC 60050-461, International Electrotechnical Vocabulary (IEV) – Part 461: Electric cables
64 3 Terms and definitions
65 For the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply.
66 ISO and IEC maintain terminology databases for use in standardization at the following addresses:
67 — ISO Online browsing platform: available at https://www.iso.org/obp/
68 — IEC Electropedia: available at https://www.electropedia.org/
69 3.1
70 aerial bundled cable (ABC)
71 aerial cable consisting of a group of insulated conductors which are twisted together including, or not, a non
72 insulated conductor
73 [SOURCE: IEV 461-08-02, modified]
74 Note 1 to entry: The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be
75 used as equivalent to the term aerial bundled cable (ABC).
76 3.2
77 aerial-insulated-cable
78 insulated cable designed to be suspended overhead and outdoors
79 [SOURCE: IEV 461-08-01]
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
80 3.3
81 branch connector
82 metallic device for connecting a branch conductor to a main conductor at an intermediate point on the latter
83 [SOURCE: IEV 461-17-05]
84 3.4
85 branch conductor
86 conductor connected to the main conductor by a connector
87 3.5
88 conductor insulation
89 insulation applied on a conductor
90 [SOURCE: IEV 461-02-02, modified]
91 3.6
92 conductor (of a cable)
93 part of a cable which has the specific function of carrying current
94 [SOURCE: IEV 461-01-01]
95 3.7
96 connector
97 metallic device to connect cable conductors together
98 [SOURCE: IEV 461-17-03]
99 3.8
100 core
101 assembly comprising conductor and its own insulation
102 [SOURCE: IEV 461-04-04, modified]
103 3.9
104 insulation (of a cable)
105 insulating materials incorporated in a cable with the specific function of withstanding voltage [IEV 461-02-01]
106 3.10
107 insulation piercing connector (IPC)
108 connector in which electrical contact with the conductor is made by metallic protrusions which pierce the
109 insulation of the ABC core
110 [SOURCE: IEV 461-11-08, modified]
111 3.11
112 messenger
113 wire or rope, the primary function of which is to support the cable in aerial installations, which may be separate
114 from or integral with the cable it supports
115 [SOURCE: IEV 461-08-03]
116 3.12
117 minimum breaking load (MBL)
118 minimum breaking load of the conductor given by HD 626 or the cable manufacturer if not defined in the
119 standard or minimum breaking load of the clamp given by the clamp manufacturer
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
120 3.13
121 neutral messenger system
122 aerial insulated system where only the neutral messenger supports the ABC
123 3.14
124 pre-insulated (terminal) lug
125 insulated metallic device for connecting an insulated cable conductor to other electrical equipment
126 3.15
127 pre-insulated through connector (sleeve)
128 insulated metallic device for connecting two consecutive lengths of insulated conductors
129 3.16
130 rated tensile strength (RTS)
131 estimate of the conductor breaking load calculated using the specified tensile properties of the component
132 wires
133 [SOURCE: EN 50182:2001, 3.7]
134 3.17
135 reusable connector
136 connector for connecting ABC to stripped cable or bare conductor where only the branch connection can be
137 reused
138 3.18
139 self supporting system
140 aerial insulated system where all the cores of the ABC contribute to its support
141 3.19
142 sheath
143 uniform and continuous tubular covering of metallic or non metallic material, generally extruded
144 [SOURCE: IEV 461-05-03]
145 3.20
146 shear head
147 head of a bolt, or a device fitted over the head of a bolt or a nut, which is designed to break at a specified
148 torque
149 3.21
150 type test
151 test required to be made before supplying a type of material covered by this standard on a general
152 commercial basis, in order to demonstrate satisfactory performance characteristics to meet the intended
153 application
154 Note 1 to entry: These tests are of such a nature that, after they have been made, they need not be repeated unless
155 changes are made to the accessory materials, design or type of manufacturing process which might change the
156 performance characteristics.
157 4 Symbols
ρ resistivity (Ω.m)
158 5 Characteristics
159 These connectors shall connect cables designed to HD 626 and withstand the following type tests.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
160 6 Marking
161 See Clause 6 of prEN 50483-1:2024.
162 7 General test conditions
163 7.1 Generalities
164 See Clause 9 of prEN 50483-1:2024.
165 Minimum and maximum cross-sections of the conductors used for the tests shall be the minimum and
166 maximum cross-sections for which the connector is designed.
167 All conductors used in these tests shall be pre-conditioned in accordance with 7.2.
168 When tensile test loads are applied to conductors the rate of increase shall be in accordance with
169 prEN 50483-1:2024, 9.1.4.
170 A torque meter shall be used for all tightening operations and it shall have a resolution and accuracy in
171 accordance with prEN 50483-1:2024, 9.1.8.
172 All tests shall be carried out at ambient temperature unless otherwise stated in this standard.
173 The frequency of a.c. tests shall be in accordance with prEN 50483-1:2024, 9.1.1.
174 The relative humidity shall be in accordance with prEN 50483-1:2024, 9.1.9 unless otherwise altered by this
175 standard.
176 If a cable breaks beyond any part of a connector, the test result shall be declared void without discrediting the
177 connector. Tests can be repeated using a new connector and a new cable.
178 7.2 Preconditioning of ABC
179 New cores or cables shall be used.
180 Cores shall be pre-conditioned according to prEN 50483-1:2024, 9.1 in order to ensure the dimensional
181 stabilization of the insulating sheath.
182 The extremities of the service cables shall be installed into the connector in accordance with the instructions
183 given by the connector manufacturer.
184 For the voltage and water tightness tests in 8.1.3, if the connector is tested in horizontal position, the cores
185 shall first be bent and held in a rigid position using an appropriate device in order to prevent damage to the
186 connections during handling, as required in the specific test.
187 For the climatic ageing test in 8.1.5.2, the cores shall be bent as for the dielectrical voltage and water
188 tightness tests and their ends shall be tightly capped to prevent moisture from penetrating the conductors, as
189 required in the specific test.
190 When there is a requirement to bend the cables, the bending radius shall be at least 15 times the outer
191 diameter of the core.
192 The cores should be shaped before installing the connectors.
193 Cores used should comply with the piercing test of the insulating sheath defined in HD 626 where the
194 customer requires this and it is applicable to the type of cable being tested.
195 8 Type tests
196 8.1 IPC tests
197 8.1.1 Installation of IPCs
198 Connectors shall be installed in accordance with the manufacturer’s instructions. A torque meter, in
199 accordance with prEN 50483-1:2024, 9.1.8, shall be used for all tightening and untightening operations.
200 Tightening shall be at the rate specified in prEN 50483-1:2024, 9.1.10.
201 The same core (e.g. Phase 1) of a cable with the same cross-section shall be used for each test.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
202 Connectors, used on cores with a cross-section lower than, or equal to, 35 mm , can be held in position during
203 tightening if necessary.
204 8.1.2 Mechanical testing
205 8.1.2.1 General
206 The following tests are designed to ensure that the IPC is both mechanically suitable and does not damage
207 the conductors it connects:
Test Subclause
Test for mechanical damage to the main conductor 8.1.2.2
Branch cable pull-out test 8.1.2.3
Connector bolt tightening test 8.1.2.4
Shear head function test 8.1.2.5
Low temperature impact test 8.1.2.6
208 8.1.2.2 Test for mechanical damage to the main conductor
209 8.1.2.2.1 Principle
210 This test ensures that the mechanical performance of the conductor is not impaired as a consequence of the
211 installation of the IPC.
212 8.1.2.2.2 Test arrangement
213 Two samples shall be tested. Where the IPC is designed to accept more than one size of core, 2 samples
214 shall be tested in each of the following conductor combinations:
Main Branch
max. max.
min. min.
min. max.
215 Where max. min. combination is required this may be agreed between the customer and the manufacturer.
216 The core shall be mounted in a tensile test machine in a suitable manner.
217 The core, on which the IPCs will be tested, shall be tensioned to between 10 % and 15 % of its MBL for
218 aluminium conductors (AAC) and between 15 % and 20 % of its MBL for all other conductors as defined in
219 HD 626 (for example copper and AAAC).
220 The core length shall be between 0,5 m and 1,5 m.
221 When using bare main conductors according to EN 50182 not included in HD 626, RTS shall be used.
222 8.1.2.2.3 Procedure
223 Connectors shall be installed in accordance with the manufacturer’s instructions.
224 When the connector is designed with a shear-head, it shall be tightened to the manufacturer’s specified
225 maximum torque.
226 When the connector is designed without a shear-head, it shall be tightened to 1,1 times the manufacturer’s
227 specified nominal torque.
228 The connectors shall not be removed from the core before the mechanical tensile test.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
229 A tensile test load shall be applied to the main conductor until it reaches the following values in Table 1:
230 Table 1
System type Conductor Tensile test load
2 2
Copper (4 mm to 16 mm ) 20 % MBL of the cable
Copper (>16 mm ) 80 % MBL of the cable
Self supporting
2 2
Aluminium (16 mm to 25 mm ) 1 200 N or 40 % MBL of the cable,
whichever is the greater
Aluminium (>25 mm ) 80 % MBL of the cable
Phase 60 % MBL of the cable
Neutral messenger
Neutral 90 % MBL of the cable
NOTE Loads for other designs of ABC shall be agreed between the customer and the manufacturer.
231 Note for Neutral messenger type: when the phase MBL is not specified, the value of 120 N/mm time the
232 cross section for pure aluminium conductor and 300 N/mm time the cross section for pure copper conductors
233 can be applied. The load shall be maintained for 60 s.
234 8.1.2.2.4 Requirements
235 The conductor shall maintain the test load for 60 s without breaking or any damage that would prevent the
236 correct function of the cable.
237 8.1.2.3 Branch cable pull-out test
238 8.1.2.3.1 Principle
239 To ensure that the IPC provides mechanical security of the branch cable.
240 8.1.2.3.2 Test arrangement
241 Two samples shall be tested. Where the IPC is designed to accept more than one size of conductor, two
242 samples shall be tested in each of the following conductor combinations:
Main Branch
min. min.
max. min.
243 Where other combinations are required these may be agreed between the customer and the manufacturer.
244 The branch connector shall be positioned and then installed in accordance with the manufacturer’s
245 instructions.
246 The core lengths shall be between 0,2 m and 0,5 m.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
247 The general arrangement is shown in Figure 1. The IPC shall be installed in accordance with manufacturer’s
248 instructions.
250 Key
1 branch
2 main secured in mechanical device
251 Figure 1 — Test arrangement
252 8.1.2.3.3 Procedure
253 When the connector is designed with a shear-head, it shall be tightened to the manufacturer’s specified
254 maximum torque.
255 When the connector is designed without a shear-head, it shall be tightened to 1,1 times the manufacturer’s
256 specified nominal torque.
257 The core, or in the case of a bare conductor, the conductor, shall be marked at the IPC so that any slippage
258 during the test can be measured.
259 A tensile load (F) shall be applied approximately axially, between the branch conductor and the opposing main
260 conductor which shall be secured in a mechanical device, at a rate between 100 N/min and 500 N/min. This
261 load shall be 1 kN or 10 % of the MBL of the branch conductor whichever is less.
262 Note: when the MBL of the main is smaller than the MBL of the branch conductor, then the MBL of the main
263 should be taken into account instead of the MBL of the branch for the min. min. configuration.
264 The load shall be maintained for 60 s.
265 8.1.2.3.4 Requirements
266 Core slippage shall not exceed 3 mm.
267 The cores shall maintain the test load for 60 s without breaking or any damage that would prevent the correct
268 function of the cable.
269 8.1.2.4 Connector bolt tightening test
270 8.1.2.4.1 Principle
271 To ensure that when tightened, the bolts used to make the electrical connection and provide mechanical
272 security, do not cause the IPC to fail mechanically during installation.
273 8.1.2.4.2 Test arrangement
274 Two connectors shall be tested.
275 The core on to which the IPC is to be installed shall be tensioned to 20 % of its MBL.
276 The IPCs shall be installed on to cores for which it is designed. Where the IPC is designed to accept more
277 than one size of conductor, two samples shall be tested in each of the following conductor combinations:
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
Main Branch
max. max.
min. min.
min. max.
278 Where max. min. combination is required this may be agreed between the customer and the manufacturer
279 and/or the supplier.
280 8.1.2.4.3 Procedure
281 The connectors shall be tightened, in accordance with prEN 50483-1:2024, 9.1.10, to the maximum torque
282 specified by the manufacturer, plus 20 %.
283 A higher value of torque may be used when this is agreed between the customer and the manufacturer and/or
284 the supplier
285 8.1.2.4.4 Requirements
286 The connector shall be undamaged.
287 8.1.2.5 Shear head function test
288 8.1.2.5.1 Principle
289 To ensure that the shear head mechanism functions correctly within the specified torque range.
290 8.1.2.5.2 Test arrangement
291 Six samples shall be tested at each of the following temperatures:
292 • the minimum temperature shall be (−10 ± 3) °C;
293 • the maximum temperature shall be (50 ± 3) °C.
294 NOTE See prEN 50483-1:2024, 9.1, for information on the use of a lower temperature.
295 The samples shall be tested in either of the following cross-section combinations:
Main Branch
min. min.
max. max.
296 8.1.2.5.3 Procedure
297 The connector assemblies shall be placed in a temperature controlled environment until they reach the test
298 temperature. The temperature shall be maintained for a minimum of 15 min.
299 The assembly can be removed from the chamber and the torque applied outside. In this case the temperature
300 of the connector shall be monitored and the torque applied within the temperature limits defined above.
301 The shear head shall then be tightened, in accordance with the manufacturer’s installation instructions, until
302 the head shears. This torque shall be recorded.
303 The test shall be repeated for the six samples at each of the specified temperatures and cross-section
304 combination.
305 8.1.2.5.4 Requirements
306 For each of the test temperatures and cross-section combination, the torque at which the shear head shears,
307 shall be within the tolerances of the manufacturer’s specified torque range.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
308 The design of the shearhead may incorporate nominal torques that vary with temperature. In such cases, the
309 manufacturer shall specify the nominal torque and its range for the ambient temperature as described in 9.1.2
310 of prEN 50483-1:2024, as well as for the maximum and minimum temperatures experienced in this test. Under
311 these conditions, additional testing could be required by customer when connectors are installed on
312 conductors at low temperatures, including: § 8.1.2.2 Test for mechanical damage to the main conductor; §
313 8.1.2.3 Branch cable pull-out test; and § 8.1.6 Electrical ageing test (applicable solely to the Max-Max
314 configuration).
315 8.1.2.6 Low temperature impact test
316 8.1.2.6.1 Principle
317 To ensure that the connector can withstand an impact when it is cold.
318 8.1.2.6.2 Test arrangement
319 Two connectors shall be installed according to the manufacturer’s instructions at ambient temperature in the
320 manner for which they are designed to be used, at nominal torque.
321 The samples shall be tested in the following cross-section combinations:
Main Branch
max. min.
max. max.
322 Figure 2 shows a typical test arrangement.
323 The connectors and the cores shall be placed in a temperature-controlled environment at
324 (−10 ± 3) °C until they reach the test temperature.
325 NOTE See prEN 50483-1:2024, 9.1, for information on the use of a lower temperature.
326 The assembly can be removed from the cold chamber in order to make the test. To ensure that the test is
327 carried out at the specified temperature the impact test shall be made immediately.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
328 Dimensions in millimetres
330 Key
1 hammer 900 g 4 steel 10 kg
2 steel intermediate piece 100 g 5 slightly round edges
3 test piece
331 Figure 2 — Typical impact test arrangement
332 8.1.2.6.3 Procedure
333 The separate samples shall be placed in the impact test device and impacted with a cylindrical anvil
334 approximately 50 mm in diameter with a spherical contact radius of approximately 300 mm. The anvil shall
335 have a mass of approximately 100 g and shall transfer to the test sample the impact energy of a weight of
336 900 g falling freely through 200 mm.
337 Two impacts shall be made on each sample, one acting from the top and one acting on the side.
338 The position of impact should be agreed between the manufacturer and the customer as being the most
339 vulnerable points. Without agreement, the top and the side of the connector should be preferred areas of
340 impact.
341 The value of weight and distance of fall may be varied as long as the impact energy (mxgxh = 1.8J where m is
342 the mass, g the gravitational constant and h the height) remains the same.
343 8.1.2.6.4 Requirements
344 No damage shall occur which would affect the correct function of the connector.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
345 8.1.3 Dielectrical voltage tests and water tightness test
346 8.1.3.1 Dielectrical voltage test
347 8.1.3.1.1 General
348 This test is not applicable to IPC which connects a bare conductor to an insulated conductor.
349 In order to meet the requirements of the type tests at least one of the two dielectrical tests shall be carried out.
350 Connector classes:
351 — Class 1: connector subjected to dielectric test in water;
352 — Class 2: connector subjected to dielectric test in air.
353 The choice of the class should be agreed between the manufacturer and the customer.
354 8.1.3.1.2 Principle
355 To ensure that the connector can withstand a dielectrical voltage.
356 8.1.3.1.3 Test arrangement
357 Two samples shall be tested. Where the IPC is designed to accept more than one size of conductor, two
358 samples shall be tested in each of the following conductor combinations:
Main Branch
min. min.
max. min.
359 8.1.3.1.4 Procedure
360 8.1.3.1.4.1 General
361 The connector shall be tightened to the minimum torque indicated by the manufacturer.
362 Initially, for reusable connectors, the tap core shall be successively, mounted four times and removed three
363 times.
364 Should the shear head break whilst mounting the connector then the torque shall be raised to the minimum
365 value according to the method defined in 8.1.1.
366 The mounting and removal shall entail taking the conductor out of the connector, but there shall be no change
367 in orientation, or modification of the stripped end of the conductor.
368 While mounting and removing the conductor, the bolts shall be tightened to the minimum torque and then un-
369 tightened.
370 8.1.3.1.4.2 Test in water (For Class 1 connectors only)
371 The assembly, of connector and cores, shall be placed at the bottom of a water tank. During the movement of
372 the assembly it may be supported to ensure no bending of the core or unnecessary movement of the
373 component parts.
374 The connector may be placed either vertically or horizontally.
375 The depth of water shall be measured from the upper part of the connector. The cores shall be of such length
376 to ensure that they are sufficiently above the water level to prevent flashover (see Figure 3).
377 The maximum leakage current shall be in accordance with prEN 50483-1:2024, 9.1.5.
378 The resistivity ρ of the water used in this test shall be in accordance with prEN 50483-1:2024, 9.1.6.
379 The voltage shall be applied at a speed specified in prEN 50483-1:2024, 9.1.7.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
380 After 30 min under water, the voltage test shall be applied to the sample with a 4 kV a.c. for 60 s according to
381 Figure 3.
382 A voltage of 6 kV may be used when agreed between the customer and the manufacturer and/or the supplier.
383 Dimensions in millimetres
385 Key
1 tank 5 part of connectors for watertight of branch core
2 insulated branch conductor 6 metallic electrode
3 insulated main conductor 7 water
4 mounted connector 8 watertight insulating cap or core bent so that
end is above the surface of water
386 Figure 3 — Illustrative arrangement for dielectrical test in water
387 8.1.3.1.4.3 Test in air (For Class 2 connectors only)
388 Two methods are provided; compliance with either will meet the requirements of this type test.
389 Method 1
390 The core shall not be bent near to the connector. Any change in orientation of the core shall be at least 10 cm
391 from the connector. The assembly shall be mounted so that the connectors lie horizontally.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
392 The assembly shall be covered by 1 cm to 2 cm of metallic balls with 1,3 mm to 1,7 mm diameter. The metallic
393 balls shall not apply undue mechanical stress to the assembly.
394 The test arrangement is shown in Figure 4.
395 Dimensions in millimetres
397 Key
1 insulated main conductor 5 mounted connector
2 tank 6 metallic electrode
3 insulated branch conductor 7 metallic balls
4 insulating cap
398 Figure 4 — Arrangement for dielectrical test in metallic balls
399 After a minimum period of 60 s, a voltage test of 4 kV a.c. shall be applied for 60 s between the core
400 conductors and the metallic balls.
401 A voltage of 6 kV a.c. may be used when agreed between the customer and the manufacturer and/or the
402 supplier.
403 A metallic foil may be used instead of metallic balls when agreed between the customer and manufacturer.
404 The maximum leakage current shall be in accordance with prEN 50483-1:2024, 9.1.5.
405 The voltage shall be applied at a speed specified in prEN 50483-1:2024, 9.1.7.
406 Method 2
407 The assembled connectors shall be closely wrapped with metallic gauze having a mesh size < 5 mm, which
408 shall be clear of any test connections. If necessary these test points shall be temporarily insulated.
409 Figure 5 shows a typical test arrangement. Where the insulated end cap is incorporated into the design of the
410 connector it may be included within the gauze screen.
411 A test voltage of 4 kV a.c. shall be applied for 60 s between the main conductor and the gauze.
412 A voltage of 6 kV a.c. may be used when agreed between the customer and the manufacturer and/or the
413 supplier.
414 For 10 min immediately preceding the test, and during the time the voltage is applied, the connectors shall be
415 exposed to artificial rain of characteristics defined in prEN 60529:1991, Class IPX3.
416 The maximum leakage current shall be in accordance with prEN 50483-1:2024, 9.1.5.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
417 The voltage shall be applied at a speed specified in prEN 50483-1:2024, 9.1.7.
419 Key
1 metallic gauze 3 insulating cap
2 ABC cores 4 connector
420 Figure 5 — Typical arrangement for dielectrical test with metallic gauze
421 8.1.3.1.5 Requirements
422 No flashover or breakdown shall occur (tripping of voltage generator).
423 8.1.3.2 Water tightness test
424 8.1.3.2.1 Principle
425 This test is required for connectors for which the dielectric test in water is not applicable due to the connector
426 design.
427 To ensure that water cannot migrate to the ABC when it is used to connect the ABC to ABC or to a bare
428 conductor.
429 This test is applicable for insulated to bare conductors and for Class 2 connectors, if required.
430 8.1.3.2.2 Test arrangement
431 Two samples shall be tested. Where the connector is designed to accept more than one size of conductor,
432 two samples shall be tested in each of the following conductor combinations:
Main Branch
min. min.
min. max.
433 8.1.3.2.3 Procedure
434 Figure 6 shows the test arrangement.
435 The length of main cores shall be approximately 30 cm. The connectors shall be tightened to the minimum
436 torque specified by the manufacturer.
437 The assembly of connector and cores shall be placed at the bottom of a water tank. The depth of water shall
438 be measured above the core.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
439 The branch core shall pass out of the tank through an appropriate seal, which shall be designed to prevent
440 any excessive stress on the insulation.
441 The assembly shall be left in the water for 24 h.
442 Dimensions in millimetres
444 Key
1 tank 4 bare or insulated main conductor
2 sealing 5 support if any
3 branch core 6 water
445 Figure 6 — Test arrangement for the water tightness test
446 8.1.3.2.4 Requirements
447 No trace of water shall be observed at the end of the core.
448 8.1.4 Low temperature assembly test
449 8.1.4.1 Principle
450 To ensure electrical contact is established when the IPC is applied in cold conditions.
451 8.1.4.2 Test arrangement
452 Two samples shall be tested. Where the IPC is designed to accept more than one size of conductor, two
453 samples shall be tested in each of the following conductor combinations:
454 Where min. min. combination is required this may be agreed between the customer and the manufacturer
455 and/or the supplier.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
Main Branch
max. max.
min. max.
max. min.
456 8.1.4.3 Procedure
457 The connectors and core shall be further pre-conditioned until they reach the test temperature of (−10 ± 3) °C,
458 then they shall be assembled at this temperature in the cold chamber.
459 NOTE 1 See prEN 50483-1:2024, 9.1, for information on the use of a lower temperature.
460 Electrical continuity shall be measured between the main and branch cables.
461 The IPC shall be installed in accordance with the manufacturer’s instructions using a torque meter.
462 Alternatively the assembly can be removed from the cold chamber and the torque applied outside. In this case
463 the temperature of the connector and the core shall be monitored and the torque applied within the
464 temperature limits defined above. This temperature shall be within these limits once contact is made.
465 The torque at which continuity is achieved shall be recorded.
466 NOTE 2 Accuracy of torque meters is usually guaranteed at positive temperature ranges. Where the torque is measured
467 within the cold chamber the accuracy of the torque meter might not be guaranteed.
468 8.1.4.4 Requirements
469 Electrical continuity shall be achieved at a torque value less than, or equal to, 70 % of the manufacturer’s
470 specified minimum installation torque.
471 8.1.5 Environmental tests
472 In order to meet the requirements of the type tests at least one of the three corrosion tests (as detailed in
473 prEN 50483-6:2024, 8.4) and one of the two climatic tests (as detailed in prEN 50483-6:2024, 8.5) shall be
474 carried out.
475 The choice of the test shall be agreed between the customer and the manufacturer and/or the supplier.
476 8.1.5.1 Corrosion tests
477 8.1.5.1.1 Principle
478 To ensure that the IPC is not affected in corrosive atmospheres.
479 8.1.5.1.2 Test arrangement - Salt mist test and gas atmosphere test
480 Two samples shall be tested in accordance with the following conductor combination:
Main Branch
min. min.
481 For immersion test see test arrangement in prEN 50483-6:2024, 8.4.3.1.
482 8.1.5.1.3 Procedure - Salt mist test and gas atmosphere test
483 8.1.5.1.3.1 General
484 The connector shall be placed in the middle of the main core of length 0,5 m to 1,5 m. It shall be tightened to
485 the minimum torque specified by the manufacturer.
486 For the immersion test see procedure in prEN 50483-6:2024, 8.4.3.1.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
487 8.1.5.1.3.2 Salt mist test
488 The number of cycles shall be 4 (4 weeks) as defined in prEN 50483-6:2024, 8.4.1.
489 8.1.5.1.3.3 Gas atmosphere test
490 Method 1: Combined test. There shall be 4 cycles of 14 days. This 14-day cycle consists of 7 days of salt mist
491 and 7 days in SO atmosphere as defined in of prEN 50483-6:2024, 8.4.1 and prEN 50483-6:2024, 8.4.2.1.
492 Method 2: There shall be 500 cycles of 2 h (approximately 6 weeks) as defined in 8.4.2.2 of
493 prEN 50483-6:2024.
494 8.1.5.1.3.4 Immersion test
495 See prEN 50483-6:2024, 8.4.3.
496 Method 1: There shall be 1 000 heat cycles in immersion as defined in prEN 50483-6:2024, 8.4.3.1.
497 Method 2: Method 2 is defined in prEN 50483-6:2024, 8.4.3.2, (included in the climatic ageing test
498 prEN 50483-6:2024, 8.5.1).
499 8.1.5.1.4 Requirements
500 Visual inspection shall be carried out and there shall be no significant trace of red rust.
501 NOTE Significant rusting would constitute more than 10 % of the exposed surface area of the metallic parts.
502 The sample’s identification marking shall be legible when examined with normal or corrected vision, without
503 magnification.
504 No deterioration of the connectors shall occur which would impair their normal function.
505 For a connector designed with a shear-head it shall be able to be removed with a torque below, or equal to,
506 the manufacturer’s specified maximum torque.
507 For a connector designed without a shear-head it shall be able to be removed with a torque below or equal to
508 1,1 times the manufacturer’s specified nominal torque.
509 Additional test requirement for a connector which connects a bare conductor to an insulated conductor are as
510 follows:
511 A continuously increasing load shall be applied to the main conductor up to 90 % of the value indicated in
512 8.1.2.2.
513 The load shall be increased in accordance with of prEN 50483-1:2024, 9.1.4.
514 The load shall be maintained for 60 s.
515 No breaking of the conductor strands shall be observed throughout the application of the load.
516 Additional test requirement for IPC submitted to immersion test, Method 1, are defined in prEN 50483-6:2024,
517 8.4.3.1.
518 8.1.5.2 Climatic ageing test
519 8.1.5.2.1 Principle
520 To ensure that the connector is not affected by climatic conditions.
521 It is recommended that these tests should be carried out on samples that have met the requirements of the
522 dielectrical voltage or water tightness tests.
523 8.1.5.2.2 Test arrangement
524 See test arrangements of dielectrical voltage or water tightness as given in 8.1.3.
oSIST prEN 50483-4:2024
prEN 50483-4:2024 (E)
525 8.1.5.2.3 Procedure
526 8.1.5.2.3.1 Climatic ageing test - Method 1
527 There shall be 6 cycles of 1 week, as defined in prEN 50483-6:2024, 8.5.1.
528 The temperature during periods A and C shall be 70 °C.
529 The temperature may be lower if agreed between the customer and the manufacturer and/or the supplier.
530 As far as possible, the samples shall be installed so that the axis of the main core is in a horizontal plane and
531 the lamp in a vertical plane. These two planes shall intersect in the middle of the lamp and in the middle of the
532 samples. The main core shall be orthogonal in the described vertical plane. Half of the samples shall be
533 installed as per orientation 1, the other as per orientation 2 (see Figure 7).

Orientation 1 Orientation 2
Key
1 shear head 4 top view
2 front view 5 main cable
3 lamp
534 Figure 7 — Orientation of the samples for the climatic ageing test
535 8.1.5.2.3.2 Climatic ageing test - Method 2
536 There shall be 56 cycles of 1 day (8 weeks), as defined in prEN 50483-6:2024, 8.5.2.
537 The samples shall be installed in the orientation shown in Figure 7.
538 8.1.5.2.4 Requirements
539 8.1.5.2.4.1 General
540 After the climatic ageing cycles and after a period of at least 24 h but not exceedi
...