ISO 11296-7:2019 地下の非圧力排水および下水道ネットワークの改修のためのプラスチック配管システム—パート7：らせん状に巻かれたパイプによるライニング | ページ 2

Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives ).

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This document was prepared by Technical Committee ISO/TC 138 Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 8 Rehabilitation of pipeline systems.

This second edition cancels and replaces the first edition (ISO 11296-7:2011), which has been technically revised. The following clause(s) have been revised:

• In 5.1, thermoplastics has been added as a separate seam sealant material category;
• In 5.3, the thickness range has been removed;
• In Table 2 the requirement for Modulus of Elasticity has been lowered to reflect current state of the art;
• In Clause 6, ISO 10467 replaces EN 14364 as normative reference for GRP saddles;
• In 8.5, Table 6, ISO 13262 replaces EN 1979 for tensile testing of a locked seam.

A list of all parts in the ISO 11296 series can be found on the ISO website.

Introduction

This document is a part of a System Standard for plastics piping systems of various materials used for the renovation of existing pipelines in a specified application area. System Standards for renovation deal with the following applications:

• ISO 11296, Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks (this application);
• ISO 11297, Plastics piping systems for renovation of underground drainage and sewerage networks under pressure;
• ISO 11298, Plastics piping systems for renovation of underground water supply networks;
• ISO 11299, Plastics piping systems for renovation of underground gas supply networks.

These System Standards are distinguished from those for conventionally installed plastics piping systems by the requirement to verify certain characteristics in the “as-installed condition”, after site processing. This is in addition to specifying requirements for plastics piping system components “as manufactured”.

Each of the System Standards comprises a

• Part 1: General

and all applicable renovation technique family-related parts, which for non-pressure drainage and sewerage networks include or potentially include the following:

• Part 2: Lining with continuous pipes;
• Part 3: Lining with close-fit pipes;
• Part 4: Lining with cured-in-place pipes;
• Part 5: Lining with discrete pipes;
• Part 7: Lining with spirally-wound pipes (this document);
• Part 8: Lining with pipe segments;
• Part 9: Lining with a rigidly anchored plastics inner layer;
• Part 10: Lining with sprayed polymeric materials.

The requirements for any given renovation technique family are specified in Part 1, applied in conjunction with the relevant other part. For example, both ISO 11296-1 and this document together specify the requirements relating to lining with spirally-wound pipes. For complementary information, see ISO 11295. Not all technique families are pertinent to every area of application and this is reflected in the part numbers included in each System Standard.

A consistent structure of clause headings has been adopted for all parts of ISO 11296, in order to facilitate direct comparisons across renovation technique families.

Figure 1 shows the common part and clause structure and the relationship between ISO 11296 and the System Standards for other application areas.

1 Scope

This document, in conjunction with ISO 11296-1, specifies requirements and test methods for pipes which are formed on site by spirally winding and jointing a pre-manufactured profiled plastics strip, or a profiled plastics strip and integral locking joiner strip, and used for the renovation of underground non-pressure drainage and sewerage networks.

It applies to spirally-wound pipes of fixed or variable diameter made of profiled plastics strips, with or without steel stiffening elements, and installed by one of two methods.

The first method employs a dedicated winding machine in front of the open end of an existing pipeline, e.g. in a manhole. The pipes thus formed are simultaneously inserted into the existing pipeline by the winding forces, and by certain techniques can also be expanded in diameter after or during insertion.

The second method employs a dedicated winding machine which forms the pipe as it traverses the existing pipeline from one manhole to the next.

It applies to profiled plastics strips of unplasticized poly(vinyl chloride) (PVC U) with integral locking mechanism, or of high density polyethylene (HDPE) with integrally welded joints.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 11296-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography