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Singapore Standards Package/Series ISO IEC

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IEC 62689-1:2016 [Current]

Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements

...ssage indicator FPI device able to detect faults providing indications about their localization (upstream or downstream from the FPIs location) and/or about the direction of fault current (usually referred as the direction of load current, i...
...ss category of measuring instruments, all of which are intended to comply with a set of specifications regarding uncertainty Note 1 to entry: The accuracy class of an FPI or DSU is defined as the overall system accuracy, i...
...with reference to the global chain (input to output): accuracies of sensors, of transmission of signals and of CPIU including variations due to influence quantities...

IEC 62689-2:2016 [Current]

Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 2: System aspects

...ssuming that smart grids are distribution networks with a high penetration of DERs; - offer additional features (for instance, advanced network automation, including self healing and automatic supply restore) even in the presence of DER; - suppo...
...Even additional distribution network operation structures, different from the main diffused radial ones, may be successfully handled by these FPIs/DSUs (for instance closed loop operation of MV feeders)...
...Table 1 refers only to whether it is possible or not to adopt the directional fault detection principle on FPIs, i...

IEC 62739-1:2013 [Current]

Test method for erosion of wave soldering equipment using molten lead-free solder alloy - Part 1: Erosion test method for metal materials without surface processing

...c) If a steel pot is used, the pot surface should be processed to prevent erosion...
...No particular specification is given to the surface processing...
...e) If the heater needs to be dipped in the molten solder, the heater surface should be processed to prevent erosion...

IEC 62739-2:2016 [Current]

Test method for erosion of wave soldering equipment using molten lead-free solder alloy - Part 2: Erosion test method for metal materials with surface processing

...e) Press the zero setting button of the digital indicator to reset the indicated value to zero...
...h) It is preferable to take a photograph of the erosion area if possible...
...To exclude the influence of the erosion generated by dross, the evaluation area is limited to 50 mm from the lower edge of the specimen...

IEC 62739-3:2017 [Current]

Test method for erosion of wave soldering equipment using molten lead-free solder alloy - Part 3: Selection guidance of erosion test methods

...3 Presentation of erosion depth by the focal depth method If precise measurement is required, measure the specimen thickness before and after the test and calculate the erosion depth according to the definition of Figure 3...
...In case the specimen thickness remains same before and after the test, the measured value of D may be used as erosion depth according to the definition of Figure 4...
...2 Absence of non-erosion area In the case where general erosion occurs and no non-erosion area exists nearby, as shown in Figure 8, the erosion depth is defined as the specimen thickness difference between before and after the test...

IEC 62821-1:2015 [Current]

Electric cables - Halogen-free, low smoke, thermoplastic insulated and sheathed cables of rated voltages up to and including 450/750 V - Part 1: General requirements

...mm C h % 200 100 2 1 4 3 Pressure test at high temperature 60811-508 3...
...% 30 6 Assessment of halogen 62821-1 Annex B 6...
...c % 0,1 a Variation: difference between the median value after ageing and the median value without ageing, expressed as a percentage of the latter...

IEC 62821-3:2015 [Current]

Electric cables - Halogen-free, low smoke, thermoplastic insulated and sheathed cables of rated voltages up to and including 450/750 V - Part 3: Flexible cables (cords)

...% 20 20 a The variation is the difference between the respective median values obtained prior to and after heat treatment, expressed as a percentage of the former...
...2 Tension assigne...
...2 Tension assigne...

IEC 62838:2015 [Current]

LEDsi lamps for general lighting services with supply voltages not exceeding 50 V a.c. r.m.s. or 120 V ripple free d.c. - Safety specifications

...NOTE The X in the IP number indicates a missing numeral but both of the appropriate numerals are marked on the luminaire...
...22 4 Exigences gnrales et exigences d''essai gnrales...
...2 Moment de flexion et masse transmis par la lampe au niveau de la douille...

IEC 62838:2015/COR1:2017 [Current]

Corrigendum 1 - LEDsi lamps for general lighting services with supply voltages not exceeding 50 V a.c. r.m.s. or 120 V ripple free d.c. - Safety specifications

IEC 62946-01:2018 [Current]

Connectors for electrical and electronic equipment - Part 01: Rectangular connectors - Detail specification for 8-way, shielded, free and fixed high density connectors for data transmission with frequencies up to 100 MHz and with current carring capacity up to 1A

...without shield), for better addressing of all relevant dimensions provided in Table 3...
...The second set of views (Figure 4b)) shows the same as Figure 4a) dressed with the shielding, in order to provide the shielding relevant dimensions also provided in Table 3...
...1 General Compliance to the test schedules is intended to ensure the reliability of all performance parameters, including transmission parameters, over the range of operating climatic conditions...

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