IEC 61316:2021

IEC 61316 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial cable reels
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IEC 61316 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Industrial cable reels
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.01; 29.120.99 ISBN 978-2-8322-4955-0

– 2 – IEC 61316:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 13
5 Standard ratings . 13
6 Classification . 14
7 Marking . 15
8 Dimensions. 17
9 Protection against electric shock . 17
10 Provisions for earthing . 20
10.1 Accessible metal parts . 20
10.2 Corrosion resistance of earth terminal . 20
10.3 Corrosion resistance of screws and nuts . 20
10.4 Earth connections . 20
10.5 Internal earthing circuit . 21
10.6 Internal moveable earth connection and slip rings . 21
11 Terminals and terminations . 22
11.1 Common requirements for terminals and terminations . 22
11.2 Screw type terminals . 25
11.3 Screwless type terminals . 26
11.4 Insulation piercing terminals (IPT) . 31
11.5 Mechanical tests on terminals . 32
11.6 Voltage drop test for screwless type terminals and for insulation piercing
terminals . 34
11.7 Tests for insulation piercing terminals transmitting contact pressure via
insulating parts . 36
11.7.1 Temperature-cycling test . 36
11.7.2 Short-time withstand current test . 36
12 Interlocks .
12 Resistance to ageing of rubber and thermoplastic material . 37
13 General Construction . 37
15 Construction of socket-outlets .
16 Construction of plugs and connectors .
17 Construction of appliance inlets .
14 Degrees of protection . 40
15 Insulation resistance and dielectric strength . 41
20 Breaking capacity .
16 Normal operation . 42
17 Temperature rise . 43
17.1 Temperature rise in normal use. 43
17.2 Temperature rise under overload conditions. 46
18 Flexible cables and their connection . 47
19 Mechanical strength . 49

20 Screws, current-carrying parts and connections . 51
21 Creepage distances, clearances and distances through sealing compound . 53
22 Resistance to heat, to fire and to tracking . 56
23 Corrosion and resistance to rusting . 57
24 Electromagnetic compatibility . 58
Bibliography . 59

Figure 1 – Pillar terminals . 10
Figure 2 – Screw terminals . 10
Figure 3 – Stud terminals . 10
Figure 4 – Saddle terminals . 11
Figure 5 – Lug terminals . 11
Figure 6 – Mantle terminals. 11
Figure 7 – Screwless terminals . 12
Figure 8 – Insulation piercing terminals . 12
Figure 9 – Test piston . 17
Figure 10 – Standard 1 mm gauge . 19
Figure 11 – Gauges for testing insertability of round unprepared conductors . 26
Figure 12 – Information for the bending test . 29
Figure 13 – Test arrangement for terminals. 33

Table 1 – Preferred rated currents . 14
Table 2 – Deflection test forces. 30
Table 3 – Pulling test values on terminals . 33
Table 4 – Pulling force . 34
Table 5 – Test current . 36
Table 6 – Test voltage for dielectric strength test . 41
Table 7 – Permissible temperature rise . 45
Table 8 – Minimum cable sizes . 47
Table 9 – Maximum length of cable . 48
Table 10 – Gland tightening force . 50
Table 11 – Tightening torques. 52
Table 12 – Creepage distances, clearances and distances through sealing compound . 54

– 4 – IEC 61316:2021 RLV © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL CABLE REELS
FOREWORD
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