IEC 62329-1-2005 pdf – Heat shrinkable moulded shapes – Part 1: Definitions and general requirements.
1 Scope This standard is applicable to heat shrinkable moulded shapes in a range of configurations and materials suitable for insulation, environmental sealing, mechanical protection and strain relief for connector/cable terminations and multi-way transitions. It specifies the design and dimensions, test methods, material requirements and compatibility performance. The most commonly available shapes are as shown in Annex A. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050(212):1990, International Electrotechnical Vocabulary − Chapter 212: Insulating solids, liquids and gases IEC 62329-2: Heat shrinkable moulded shapes – Part 2: Methods of test 1 3 Terms and definitions For the purposes of this document, the terms and definitions of the International Electrotechnical Vocabulary IEC 60050-212, Section 1 (Terms relating to electrical properties), apply as well as the following: 3.1 central value the middle result of an odd number of measurements or the mean of the two middle results of an even number of measurements when arranged in order of magnitude 3.2 consignment all shapes of one size, type, grade and colour submitted for delivery at the same time
4 Specimens 4.1 Moulded shape material specimens Unless otherwise specified, specimens shall be cut from standard test sheets (2 ± 0,15) mm thick, prepared from the same heat shrinkable material as is used to manufacture the heat shrinkable moulded shapes. The dimensions of the sheet shall be sufficient to enable any of the relevant tests in Part 3 to be performed. NOTE A suitable size has been found to be 150 mm x 150 mm. 4.2 Moulded shape compatibility specimens Specimens for test of compatibility shall consist of a moulded shape, cable sheathed with heat shrink sleeves and metal adaptor. Also, adhesives when supplied as a separate component. The specimen configuration and sizes shall be as specified in Part 2. 5 Classification Moulded shapes are classified by style configuration as shown in Annex A. 6 Ordering When ordering heat shrinkable moulded shapes, purchasers shall include the description as detailed under designation given in the Part 3 sheets. 7 Dimensions Preferred types and sizes are given in Part 3 but may be subject to agreement between purchaser and supplier. 8 Colour The standard colour is black. Non standard colours may be subject to agreement between customer and supplier. 9 Finish The heat shrinkable moulded shapes shall be uniform in appearance, and free from internal and external irregularities. There shall be no defects capable of affecting the characteristics specified in Part 3. 10 Packaging Heat shrinkable moulded shapes shall be supplied in a way which ensures adequate protection during transport, handling and storage.
12 Qualification approval requirements 12.1 When agreed between purchaser and supplier, the supplier shall provide third party certification by an approved National or International Approval Agency. 12.2 Where agreed between the purchaser and supplier, the supplier shall provide details of material composition, agreed techniques and evidence to the satisfaction of the approving Authority that the heat shrinkable moulded shapes supplied conform to all the requirements listed in the Part 3 sheets. No changes shall be made to the declared composition and agreed techniques used in the production of the heat shrinkable moulded shapes without the prior written agreement of the Certification Approval Agency. Following such changes the Certification Approval Agency may require a repetition of the Qualification testing. Certification is valid for a period of 5 years unless otherwise agreed, after which time the supplier shall apply for re-approval for conformance to the Part 3 sheet. 12.3 Qualification tests shall be performed on the size given in the Part 3 sheets. 12.4 In the event of a failure of the material or moulded shapes to conform to the requirements of a test, the consignment shall be resampled and the test repeated using two further sets of test specimens, Both sets shall conform to the appropriate test requirements; otherwise the heat shrinkable moulded shapes shall be deemed not to conform to the Part 3 sheet. 12.5 In the absence of third party approval the supplier may be required to supply a test report demonstrating conformance to relevant Part 3 sheets.