This part of IEC 62735, which is a Technical Specification, applies to plugs and fixed socket-outlets for class I equipment with two active contacts plus an earthing contact, a rated power of 2,6 kW and a rated voltage range from 294 V to 400 V d.c. They are intended to power d.c. information and communication technology equipment only, products according to IEC 60950.<\/p>\n
The accessories according to this part of IEC 62735 are intended to be used by ordinary persons in data centres only where the value of the d.c. voltage distribution system is defined as follows:<\/p>\n
380 V with a tolerance of \u00b120 V for installations with no backup battery or with a voltage regulation system;<\/p>\n<\/li>\n
380 V with a voltage range of 294 V to 400 V for installations with a backup battery where voltage regulation is not guaranteed;<\/p>\n<\/li>\n
the voltage value between each live conductor and earth does not exceed 200 V d.c. during normal operation;<\/p>\n<\/li>\n
there are two abnormal voltage ranges (duration below 10 min):<\/p>\n
260 V up to 294 V, and<\/p>\n<\/li>\n
above 400 V to 410 V.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
The maximum current of the plug and the socket-outlet is<\/p>\n
6,5 A when the voltage between live contacts is 400 V d.c.,<\/p>\n<\/li>\n
8,8 A when the voltage between live contacts is 294 V d.c.<\/p>\n<\/li>\n<\/ul>\n
and can rise up to 10 A when the voltage between live contacts decreases to 260 V d.c. for 10 min maximum.<\/p>\n
The voltage between live conductors can fall down to 260 V d.c. when the voltage discharge value of the battery reaches the disconnecting level. The consequence is that the current increases accordingly.<\/p>\n
The accessories according to this part of IEC 62735 do not require maintenance.<\/p>\n
Plugs and socket-outlets covered by this part of IEC 62735 are intended for use in circuits where<\/p>\n
basic protection,<\/p>\n<\/li>\n
an overcurrent protection (of 8,8 A or less for each socket-outlet or multiple socket-outlet),<\/p>\n<\/li>\n
the fault protection (indirect contact protection), and<\/p>\n<\/li>\n
additional protection<\/p>\n<\/li>\n<\/ul>\n
are already assured.<\/p>\n
This part of IEC 62735 does not cover requirements for flush mounting boxes: however, it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.<\/p>\n
\nNOTE 1 General requirements for mounting boxes are given in IEC 60670.<\/p>\n<\/blockquote>\n
This part of IEC 62735 also applies to<\/p>\n
\n
- \n
plugs incorporated in cord sets,<\/p>\n<\/li>\n
- \n
plugs and socket-outlets incorporated in cord extension sets for data centres to be fixed to a wall or a rack,<\/p>\n<\/li>\n
- \n
the cord extension set and multiple socket-outlets for data centres intended to be fixed to a wall or a rack, and<\/p>\n<\/li>\n
- \n
socket-outlets which are a component of an assembly,<\/p>\n<\/li>\n<\/ul>\n
unless otherwise stated in the standard for the relevant assembly.<\/p>\n
This part of IEC 62735 does not apply to<\/p>\n
\n
- \n
single or multiple portable socket-outlets not fixed to a wall or a rack;<\/p>\n<\/li>\n
- \n
plugs, socket-outlets and couplers for industrial purposes;<\/p>\n<\/li>\n
- \n
plugs, socket-outlets and vehicle couplers for electric vehicles according to the IEC 61851 and IEC 62196 series;<\/p>\n<\/li>\n
- \n
plugs and socket-outlets for household;<\/p>\n<\/li>\n
- \n
appliance couplers;<\/p>\n<\/li>\n
- \n
plugs, fixed and portable socket-outlets for extra-low voltage (ELV);<\/p>\n
\nNOTE 2 ELV values are specified in IEC 60364-4-41.<\/p>\n<\/blockquote>\n<\/li>\n
- \n
fixed socket-outlets combined with fuses, automatic switches, etc.<\/p>\n<\/li>\n<\/ul>\n
Socket-outlets with pilot lights are allowed provided that pilot lights comply with the relevant standard, if any.<\/p>\n
Plugs and socket-outlets complying with this part of IEC 62735 are only suitable for use at ambient temperatures not normally exceeding +40 \u00b0C, but their average over a period of 24 h does not exceed +35 \u00b0C, with a lower limit of the ambient air temperature of \u22125 \u00b0C.<\/p>\n
Socket-outlets complying with this part of IEC 62735 are only suitable for incorporation or mounting in equipment in such a way and in such a place that it is unlikely that the surrounding temperature exceeds 35 \u00b0C.<\/p>\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 4<\/td>\n CONTENTS <\/td>\n<\/tr>\n \n 8<\/td>\n FOREWORD <\/td>\n<\/tr>\n \n 10<\/td>\n 1 Scope <\/td>\n<\/tr>\n \n 11<\/td>\n 2 Normative references <\/td>\n<\/tr>\n \n 12<\/td>\n 3 Terms and definitions <\/td>\n<\/tr>\n \n 16<\/td>\n 4 General requirements
5 General notes on tests <\/td>\n<\/tr>\n\n 18<\/td>\n 6 Ratings
7 Classification
7.1 Accessory classifications
7.2 Socket-outlet classifications <\/td>\n<\/tr>\n\n 19<\/td>\n 8 Marking
8.1 General
8.2 Symbols <\/td>\n<\/tr>\n\n 20<\/td>\n 8.3 Visibility of markings
8.4 Marking for plugs
8.5 Marking of terminals <\/td>\n<\/tr>\n\n 21<\/td>\n 8.6 Durability of marking
9 Checking of dimensions
10 Protection against electric shock <\/td>\n<\/tr>\n\n 24<\/td>\n 11 Provision for earthing <\/td>\n<\/tr>\n \n 25<\/td>\n 12 Terminals and terminations
12.1 General <\/td>\n<\/tr>\n\n 26<\/td>\n 12.2 Terminals with screw clamping for external copper conductors
Tables
Table 1 \u2013 Relationship between rated power and connectable nominal cross-sectional areas or American Wire Gauge (AWG) size of copper conductors <\/td>\n<\/tr>\n\n 28<\/td>\n Table 2 \u2013 Values for pull test for screw-type terminals <\/td>\n<\/tr>\n \n 29<\/td>\n Table 3 \u2013 Composition of conductors <\/td>\n<\/tr>\n \n 30<\/td>\n Table 4 \u2013 Tightening torques for the verification of the mechanical strength of screw-type terminals <\/td>\n<\/tr>\n \n 31<\/td>\n 12.3 Screwless terminals for external copper conductors <\/td>\n<\/tr>\n \n 32<\/td>\n Table 5 \u2013 Relationship between rated power and connectable cross-sectionalareas or AWG size of copper conductors for screwless terminals <\/td>\n<\/tr>\n \n 34<\/td>\n Table 6 \u2013 Value for pull test for screwless-type terminals
Table 7 \u2013 Values for flexing under mechanical load test for copper conductors <\/td>\n<\/tr>\n\n 35<\/td>\n Table 8 \u2013 Test current for the verification of electrical and thermal stressesin normal use for screwless terminals <\/td>\n<\/tr>\n \n 36<\/td>\n Table 9 \u2013 Nominal cross-sectional areas or AWG size of rigid copper conductors for deflection test of screwless terminals <\/td>\n<\/tr>\n \n 37<\/td>\n 12.4 Flat quick-connect terminations
Table 10 \u2013 Deflection test forces <\/td>\n<\/tr>\n\n 38<\/td>\n 12.5 Permanent connections
13 Construction of socket-outlets
Table 11 \u2013 Forces to be applied to tabs
Table 12 \u2013 Relationship between tab size and maximum current <\/td>\n<\/tr>\n\n 40<\/td>\n Table 13 \u2013 Forces to be applied to covers, cover-plates or actuating members whose fixing is not dependent on screws <\/td>\n<\/tr>\n \n 42<\/td>\n Table 14 \u2013 External cable dimension limits for surface-type socket-outlets <\/td>\n<\/tr>\n \n 45<\/td>\n 14 Construction of plugs <\/td>\n<\/tr>\n \n 50<\/td>\n 15 Interlocked socket-outlets
16 Resistance to ageing, protection provided by enclosures, and resistance to humidity
16.1 Resistance to ageing <\/td>\n<\/tr>\n\n 51<\/td>\n 16.2 Protection provided by enclosures <\/td>\n<\/tr>\n \n 52<\/td>\n 16.3 Resistance to humidity <\/td>\n<\/tr>\n \n 53<\/td>\n 17 Insulation resistance and electric strength <\/td>\n<\/tr>\n \n 54<\/td>\n 18 Operation of earthing contacts <\/td>\n<\/tr>\n \n 55<\/td>\n 19 Temperature rise <\/td>\n<\/tr>\n \n 56<\/td>\n Table 15 \u2013 Nominal cross-sectional areas of copper conductorsand test currents for the temperature rise test <\/td>\n<\/tr>\n \n 58<\/td>\n 20 Breaking capacity <\/td>\n<\/tr>\n \n 59<\/td>\n 21 Normal operation <\/td>\n<\/tr>\n \n 60<\/td>\n 22 Force necessary to withdraw the plug
22.1 General <\/td>\n<\/tr>\n\n 61<\/td>\n 22.2 Verification of the maximum withdrawal force for socket-outlets
22.3 Verification of the minimum withdrawal force <\/td>\n<\/tr>\n\n 62<\/td>\n 23 Flexible cables and their connection
Table 16 \u2013 Maximum and minimum withdrawal force for plugs and socket-outlets
Table 17 \u2013 External dimensions of flexible cables to be accommodated by cord anchorages <\/td>\n<\/tr>\n\n 63<\/td>\n Table 18 \u2013 Torque test values for cord anchorages <\/td>\n<\/tr>\n \n 64<\/td>\n Table 19 \u2013 Maximum dimensions of flexible cables to be accommodated in rewirable accessories <\/td>\n<\/tr>\n \n 65<\/td>\n 24 Mechanical strength <\/td>\n<\/tr>\n \n 67<\/td>\n Table 20 \u2013 Height of fall for impact tests <\/td>\n<\/tr>\n \n 70<\/td>\n Table 21 \u2013 Torque test values for glands <\/td>\n<\/tr>\n \n 74<\/td>\n 25 Resistance to heat
Table 22 \u2013 Resistance to heat of different types or parts of accessories <\/td>\n<\/tr>\n\n 75<\/td>\n 26 Screws, current-carrying parts and connections <\/td>\n<\/tr>\n \n 77<\/td>\n 27 Creepage distances, clearances and distances through sealing compound <\/td>\n<\/tr>\n \n 78<\/td>\n Table 23 \u2013 Creepage distances, clearances and distances throughinsulating sealing compound <\/td>\n<\/tr>\n \n 79<\/td>\n 28 Resistance of insulating material to abnormal heat and to fire <\/td>\n<\/tr>\n \n 80<\/td>\n 29 Resistance to rusting <\/td>\n<\/tr>\n \n 82<\/td>\n Figures
Figure 1 \u2013 Examples of accessories <\/td>\n<\/tr>\n\n 105<\/td>\n Figure 30 \u2013 Test procedures for normal operation (see Clause 21) <\/td>\n<\/tr>\n \n 106<\/td>\n Figure 31 \u2013 Clamping unit for the temperature rise test of Clause 19 <\/td>\n<\/tr>\n \n 107<\/td>\n Figure 32 \u2013 The profile of the inrush current for the test of Clause 20
Figure 33 \u2013 Annex to Figure 32 with additional information on a possiblecircuit to produce the inrush current as given in Figure 32 <\/td>\n<\/tr>\n\n 108<\/td>\n Figure 34 \u2013 Circuit diagram for testing socket-outlets and plugs according to 18.2
Figure 35 \u2013 Possible test setup for the temperature rise test for Clauses 19 and 21 <\/td>\n<\/tr>\n\n 109<\/td>\n Annex A (normative) Safety-related routine tests for factory-wired accessories (protection against electric shock and correct polarity)
A.1 General remarks
A.2 Polarized systems, \u201c+\u201d and \u201c\u2212\u201d \u2013 correct connection <\/td>\n<\/tr>\n\n 110<\/td>\n A.3 Earth continuity
A.4 Short-circuit\/wrong connection and reduction of creepage distanceand clearances between \u201c+\u201d and \u201c\u2212\u201d to earth () <\/td>\n<\/tr>\n\n 111<\/td>\n Annex B (normative) Survey of specimens needed for tests
Table B.1 \u2013 Number of specimens needed for the tests according to 5.5 <\/td>\n<\/tr>\n\n 112<\/td>\n Annex C (informative) Alternative gripping tests
C.1 Gripping test C1 <\/td>\n<\/tr>\n\n 113<\/td>\n Figure C.1 \u2013 Reference plug for gripping test <\/td>\n<\/tr>\n \n 114<\/td>\n C.2 Gripping test C2
Figure C.2 \u2013 Example of the test apparatus for plug gripping test <\/td>\n<\/tr>\n\n 116<\/td>\n Annex D (normative) Standard sheets and gauges
D.1 Standard sheets <\/td>\n<\/tr>\n\n 117<\/td>\n Figure D.1 \u2013 Standard sheet 1: 2,6 kW \/ 294 V to 400 V d.c. socket-outlet for class I equipment <\/td>\n<\/tr>\n \n 118<\/td>\n Figure D.2 \u2013 Standard sheet 2: 2,6 kW \/ 294 V to 400 V d.c. plug for class I equipment <\/td>\n<\/tr>\n \n 119<\/td>\n Figure D.3 \u2013 Standard sheet 3: positioning of the \u201c+\u201d and \u201c\u2212\u201d pins\/socket-contacts <\/td>\n<\/tr>\n \n 120<\/td>\n D.2 Gauges for checking the dimensions of the entry holes
Figure D.4 \u2013 Minimum gauges for checking the dimensions of the entry holes: C1
Figure D.5 \u2013 Maximum gauges for checking the dimensions of the entry holes: C2 <\/td>\n<\/tr>\n\n 121<\/td>\n Figure D.6 \u2013 Gauge for checking the first point of contact: C3
Figure D.7 \u2013 Gauges for checking the minimum withdrawal force (see 22.3) <\/td>\n<\/tr>\n\n 122<\/td>\n Figure D.8 \u2013 Gauge for checking the maximum withdrawal force: C4max (see 22.2) <\/td>\n<\/tr>\n \n 123<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices – Plug and socket-outlet system for 2,6 kW<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2015<\/td>\n 126<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":417239,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[509,2641],"product_tag":[],"class_list":{"0":"post-417229","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-120-30","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/417229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/417239"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=417229"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=417229"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=417229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}