IEC 60158-3:1985 pdf download

IEC 60158-3:1985 pdf download.Low-voltage controlgear Part 3: Additional requirements for contactors subject to certification.
IEC 60158-3 applies to electro-magnetic air-break contactors in accordance with I EC Publication 158-1 for which additional requirements are necessary in order to specify in sufficient detail certain testing parameters and procedures.
Additional notes:
3. — The need for additional requirements appears, for example, when contactors have to be tested and certified by appropriate testing authorities because of national or other laws or rules.
4. — if control switches are incorporated in contacors they shall comply with I EC Publication 337-I: Control Switches (Low-voltage Switching Devices for Control and Auxiliary Circuits, Including Contactor Relays), Part 1: General Requirements.
This clause of I EC Publication 158-I applies except as follows:
Replacement of the first paragraph:
Each contactor shall be provided with a nameplate carrying the following data, marked in a durable manner, and which shall be easily legible and shall not be placed on screws, removable washers or other removable parts.
In addition when the contactor is supplied in an enclosure the IP rating according to the relevant I E C publication * shall be indicated on the enclosure.
The marking of the terminals shall be in accordance with I EC Publication 158-IC.
The nameplate shall indicate that the device has been certified according to this standard and by what authority it has been thus certified.
Alternative ratings according to I EC Publication 158-1 may also be given by the manufacturer even if these have not been certified according to this standard.
The test is made on one sample. In case of doubt, the test shall be repeated on two further samples. The sample shall be stored for 24 h under standard ambient atmosphere conditions before the lest, in accordance with I E C Publication 212: Standard Conditions for Use Prior to and During the Testing of Solid Electrical Insulating Materials.
The test is made by applying the glow-wire once. The sample shall be positioned during the test in the most unfavourable position of its intended use (with the surface tested in a vertical position).
The tip of the glow-wire shall be applied to the specified surface of the lest sample taking into account the conditions of the intended use under which a heated or glowing element may come into con taCt with the sample.
The sample is regarded as having passed the glow-wire test (1:
— there is no visible flame and no sustained glowing, or if
— flames or glowing at the sample extinguish within 30 s after the removal of the glow-wire.IEC-60158-3-1985

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