FprEN 50699

SLOVENSKI STANDARD
oSIST prEN 50699:2020
01-februar-2020
Ponavljalni preskus električne opreme
Recurrent Test of Electrical Equipment
Ta slovenski standard je istoveten z: prEN 50699
ICS:
29.020 Elektrotehnika na splošno Electrical engineering in
general
oSIST prEN 50699:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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

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,

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

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

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

2 European foreword ...................................................................................................................................3

3 Introduction ...............................................................................................................................................4

4 1 Scope ...............................................................................................................................................5

5 2 Normative references .......................................................................................................................5

6 3 Terms and definitions .......................................................................................................................6

7 4 Requirements ...................................................................................................................................9

8 5 Tests .................................................................................................................................................9

9 5.1 General ...................................................................................................................................9

10 5.1.1 General test conditions ...................................................................................................9

11 5.1.2 Visual inspection ......................................................................................................... 10

12 5.1.3 Test of the protective measures against electric hazards ........................................... 10

13 5.1.4 Confirmation of the compliance of additional protective measures............................. 10

14 5.1.5 Documentation and evaluation of test ......................................................................... 11

15 5.2 Visual inspection .................................................................................................................. 11

16 5.3 Measuring of protective bonding resistance ........................................................................ 12

17 5.4 Measurement of the insulation resistance ........................................................................... 14

18 5.5 Measurement of protective conductor current ..................................................................... 19

19 5.6 Measurement of the touch current ...................................................................................... 23

20 5.7 Confirmation of the compliance of the specifications for the protective measure

21 SELV/PELV ......................................................................................................................... 26

22 5.8 Measurement of the leakage current produced by a floating input (measuring- and

23 control input) with a rated input voltage above 50 V a.c or 120 V d.c ................................. 26

24 5.9 Confirmation of the operation of further protective measures ............................................. 27

25 5.10 Final verification of marking ................................................................................................. 27

26 6 Documentation and evaluation of test ........................................................................................... 27

27 7 Test equipment .............................................................................................................................. 28

28 Annex A (informative) General guidance and rationale ....................................................................... 29

29 Annex B (informative) Schematics for test sequences ......................................................................... 33

30 Annex C (normative) Special National Conditions ............................................................................... 35

31 Bibliography ........................................................................................................................................... 36

33 This document (prEN 50699:2019) has been prepared by CLC/BTTF 160-1 “Recurrent Test of

38 This document provides a uniform procedure for an employer/work place to test the effectiveness of

39 the basic protective measures for recurrent tests of current using electrical equipment and appliances

41 This document can be considered to support compliance with the European Directive 2009/104/EC

42 concerning the minimum safety and health requirements for the use of work equipment by workers at

44 In general, test procedures for verification of products is the responsibility of the related product

45 technical committees. This document can be taken into consideration by product technical committees

46 if they need to take into consideration modified or additional tests for verification of products falling

48 The described tests are simple and fast, well approved and safe for the testing person.

51 This document specifies the requirements of the test procedures to be applied for recurrent tests of

52 current-using electrical equipment and appliances for the verification of the effectiveness of the

54 This procedure is applicable to current-using electrical equipment connected to final circuits. They can

55 be either pluggable equipment type A connected to final circuits at work places via a plug or

56 permanently connected equipment, with a rated voltage above 25 V AC and 60 V DC up to 1 000 V

60 — type tests, routine tests, sample tests, special tests and acceptance tests for product safety nor

63 — devices and equipment that are part of the fixed electrical installations defined in

65 — uninterruptible Power Supply (UPS), photovoltaic inverters and power converters, e.g. AC/DC

73 — medical equipment covered by EN 60601-1. For these devices, EN 62353 applies;

74 — arc welding equipment covered by EN 60974-1. For these devices, EN 60974-4 applies;

77 The following documents are referred to in the text in such a way that some or all of their content

78 constitutes requirements of this document. For dated references, only the edition cited applies. For

79 undated references, the latest edition of the referenced document (including any amendments) applies.

80 EN 61557-1, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -

81 Equipment for testing, measuring or monitoring of protective measures - Part 1: General requirements

82 EN 61557-2, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -

83 Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance

84 EN 61557-4, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -

85 Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth

87 EN 61557-16, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -

88 Equipment for testing, measuring or monitoring of protective measures - Part 16: Equipment for testing

89 the effectiveness of the protective measures of electrical equipment and/or medical electrical

94 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

97 NOTE Some of the definitions are different from those in the product standards for type testing, as different

101 protection within a piece of equipment which limits the effects of electrical current on a user or other

103 Note 1 to entry: Safety is defined as freedom from unacceptable risk (refer to ISO 14971:2007, definition

107 process of visually controlling, measuring or proving the electrical equipment in order to assure that

112 person with relevant education and experience to enable him or her to perceive risks and to avoid

118 person adequately advised or supervised by electrically skilled persons to enable him or her to

123 single apparatus using electrical energy and connected by plug or permanently connected to a final

125 Note 1 to entry: Equipment includes those accessories as defined by the manufacturer that are necessary to

129 electric circuit intended to directly supply electric current to current-using equipment or

135 [SOURCE: IEV 442-01-24 modified – the term has changed and a reference to the absence of an

139 current passing through a human or animal body when it touches one or more accessible parts of a

141 [SOURCE: IEV 195-05-21 modified – the wording of the definition has been narrowed]

144 electric current which flows in a protective conductor and is frequency weighted according to the

146 [SOURCE: IEV 826-11-21, modified – the wording of the definition has been expanded.]

149 vectorial sum of the currents flowing in the live conductors of the mains circuit of the equipment and

151 [SOURCE: IEV 442-05-19 modified – the wording of the definition has been expanded]

154 resistance under specified conditions between two conductive elements separated by insulating

159 resistance between any accessible conductive part, which is connected for safety purposes to the

166 electric system in which the voltage cannot exceed the value of extra-low voltage:

168 — under single fault conditions, including earth faults in other electric circuits

173 electric system in which the voltage cannot exceed the value of extra-low voltage:

175 — under single fault conditions, except earth faults in other electric circuits

180 periodic verification of the effectiveness of protective measures of electrical equipment

183 equipment that can only be electrically connected to or disconnected from the mains by the use of a

187 equipment that is intended for connection to the mains via a non-industrial plug and socket outlet or

189 Note 1 to entry: Examples are plugs and socket-outlets covered by standards such as EN 60320-1.

192 electrical equipment intended to convert electrical energy into another form of energy, for example

200 Recurrent tests shall be performed by an electrically skilled person or by an electrically instructed

202 Additional requirements (e.g. for the mechanical safety or for fire protection) according to the

204 If testing the equipment requires additional knowledge or additional test and measurement equipment,

205 for example equipment for microwaves, tests shall be done according to the instructions of the

207 All tests shall be performed in such a manner that the risk for testing personnel or other individuals

209 If not otherwise stated, all values for current and voltage are the r.m.s. values of an alternating, direct

212 — there are no visible faults on safety related parts, which are accessible by the user and

213 — by the intended use of the equipment, minimized hazard for the user or the environment

215 The electrically skilled person who is responsible for the test shall decide if additional tests are

217 During a recurrent test the equipment shall not be disassembled. The electrically skilled person may

218 decide that, for equipment that is connected to the distribution system with fixed and protected wiring

219 and is not intended to be hand-held during operation, the test is carried out according to this document

221 The test procedure shall be interrupted and the equipment shall be disconnected from mains and

229 The tests may be performed at the ambient temperature, humidity and atmospheric pressure present

231 If it is obvious that the equipment is contaminated by dust or moisture, it is allowed to clean the

233 The operational limits of the test equipment and the equipment under test shall be taken into account.

234 The equipment shall be tested according to the test steps in 5.1.1 to 5.1.5, as long as it is possible

235 with the equipment under test. The sequence of testing shall be as defined in this document.

237 If it is not possible to perform a certain test step, an electrically skilled person shall decide if the safety

238 of the equipment under test can be confirmed without the test step or by other means. This decision

241 The values in this document shall be used unless the product standard specifically provides in-service

242 limits in which case the product standard limits shall be used or justified values from the manufacturer.

243 External equipment could influence the tests and should be disconnected if possible.

244 NOTE In general this document does not address the measurement of DC leakage currents.

248 Test of the protective measures against electric hazards shall be performed according to 5.3 to 5.8.

249 — Confirmation of the effectiveness of the protective bonding to all accessible conductive parts

251 — Confirmation of the effectiveness of the insulation by measuring the insulation resistance between

253 — connected to protective earth (primarily on class I equipment) according to 5.4;

254 — protected by double or reinforced Insulation and not connected to protective earth (primarily

257 — Confirmation of the compliance with the limits for the leakage currents by measuring of:

259 — The touch current of accessible conductive parts not connected to protective earth, if

261 NOTE The measurement of leakage current can be omitted on extension leads, detachable power cables,

262 multiple socket-outlets without electrical parts between live conductors and protective earth.

263 — Confirmation of the compliance with the requirements for the protective measure SELV/PELV by

264 measuring the output voltage, if the output voltage is accessible according to 5.7.

265 — Confirmation of the compliance with the limits for the leakage currents produced by a floating

266 input (e.g. inputs for measuring and control) with a rated input voltage above 50 V a.c or

269 Confirmation of the compliance of additional protective measures shall be according to 5.9.

271 The documentation and the evaluation of the tests shall be according to Clause 6.

273 The visual inspection shall take place to detect external defects and, if possible, to determine the

278 — checking by hand to ensure that the anchorages and the inlets of each connector are properly

284 — damage of the housing and protective cover that could give access to live or dangerous moving

291 — tightness of container for water, air, or other medium, condition of pressure control valve;

293 — readability of all safety relevant markings or symbols, of the ratings and of the position indicators;

294 — all fuses accessible from the outside are complying with the data given by the manufacturer (rated

298 — assess the relevant accessories together with the equipment (e.g. detachable or fixed power

301 NOTE 1 It is appropriate to determine during the visual inspection, if accessible conductive parts, that have to

306 — the protective earth terminal of the equipment (where applicable contact on the mains plug) and

307 — each accessible conductive part, directly connected to the protective earth.

308 NOTE 1 Not directly connected part’s (e.g. mechanical construction parts) could have higher values. On these

309 parts compliance with safety requirements is proved by touch current measurements.

311 — visually inspecting the entire length of the protective earth path according to 5.2;

313 NOTE 2 During the measurement, the conductor is flexing over the entire length and at the point of entry on

316 For cable lengths up to 5 m and a cross section area up to 1,5 mm2, the protective bonding resistance

317 shall not exceed 0,3 Ω. For each further 7,5 m cable length 0,1 Ω shall be added to the limit up to a

319 For cross section areas above 1,5 mm2 and other cable lengths the limit shall be calculated by the

ρ is the standard value of electrical conductivity (m/(Ω mm2) for the metal used for the PE

323 NOTE 3 The value of 0,1 Ω in the formulae above takes into account the influence of the contact resistance.

324 It is recommended that care be taken to ensure that the contact resistance between the test probe and

326 When equipment under test is permanently connected to the distribution system, an earth reference

327 point on the fixed installation is required to measure the earth continuity. The protective earth

328 conductor shall not be disconnected from the installation and protective covers shall not be removed.

329 NOTE 4 During this measurement parallel earth connections, for example due to the type of installation (water

331 NOTE 5 Some equipment under test could have accessible metal parts which are earthed only for functional

332 or screening purposes with protection against electric shock being provided by double or reinforced insulation.

334 a) Example measuring circuit for the measurement of protective earth resistance in equipment

337 b) Example measuring circuit for the measurement of protective earth resistance in equipment,

338 which for functional reasons cannot be disconnected from supply mains, or in equipment or

9.1 test probe to protective earth and to accessible protective parts, connected to PE

345 — between live parts and each accessible conductive part, including protective earth (except PELV);

347 The test circuits and limits in Table 1 shall be used. The equipment under test shall be disconnected

348 from mainssupply. To include all insulation of all live parts, all switches, controls etc. shall be closed

349 during the measurement. If necessary, the measurements shall be repeated in all switch positions.