IEC 60855-1 :2016 pdf download – Live working – Insulating foam-filled tubes and solid rods – Part 1: Tubes and rods of a circular cross-section.
1 Scope This part of IEC 60855 is applicable to insulating foam-filled tubes and solid rods, of a circular cross-section, made of synthetic materials with reinforced fibreglass and intended to be used in the manufacture and construction of tools, devices and equipment for carrying out live working on electrical systems operating at voltages above 1 kV. Foam-filled tubes and solid rods of cross-section other than circular and/or made with material other than synthetic materials with reinforced fibreglass are not covered by this part of IEC 60855. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60060-1 , High-voltage test techniques – Part 1: General definitions and test requirements IEC 60060-2, High-voltage test techniques – Part 2: Measuring systems IEC 6021 2:201 0, Standard conditions for use prior to and during the testing of solid electrical insulating materials IEC 61 31 8, Live working – Conformity assessment applicable to tools, devices and equipment 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61 31 8 and the following apply.
3.3 insulating solid rod solid rod solid product of uniform circular cross-section supplied in straight lengths, constructed or formed of synthetic insulating rigid reinforced material [SOURCE: IEC 60050-651 :201 4, 651 -22-04, modified – The term and its definition have been changed to refer specifically to insulating solid rods covered by this part of IEC 60855.] 4 Requirements 4.1 Materials and design Foam-filled tubes and solid rods shall be made of synthetic insulating material with reinforced fibreglass. NOTE Yellow, orange and red are the preferred colours to indicate that the material has insulating properties. If any coating is applied, it may be transparent or coloured. The foam filling shall be bonded to the wall of the insulating tube, and neither the foam nor the bond shall be deteriorated during the tests, other than those tests which lead to destruction of the parts. The foam filling shall be free of voids, separations, cracks or other defects. 4.2 Electrical requirements The material and the design of foam-filled tubes and solid rods shall have insulating properties. The external surface of the foam-filled tubes and solid rods shall have hydrophobic properties. 4.3 Mechanical requirements The material and the design of foam-filled tubes and solid rods shall have mechanical resistance properties. 4.4 Diameters of foam-filled tubes and solid rods All measured diameters shall fall within the tolerance limits specified in Table 1 .
4.5 Marking Embossed marking is prohibited. The marking of each foam-filled tube and solid rod shall include the following information as a minimum: • name or trademark of the manufacturer; • external nominal diameter; • date of manufacture (month and year) and identification number when available; • number of the relevant IEC standard (IEC 60855-1 ). Other characteristics or information not needed at the work location, like the year of publication of the standard, shall be associated to the product item by other means, such as coded information (bar codes, microchips, etc.) on the product or on its packaging. The marking shall be clearly legible to a person with normal or corrected vision, without additional magnification. The marking shall be durable and shall not affect the electrical performance of foam-filled tubes and solid rods. 4.6 Packaging The marking of each pack shall include the following information as a minimum: • name or trademark of the manufacturer; • external nominal diameter; • date of manufacture (month and year) and identification number when available; • number of the relevant IEC standard (IEC 60855-1 ). The packaging should reduce abrasive or direct contact with other foam-filled tubes or solid rods or any surface that could damage the polished surface.