日本語の概要・翻訳のご依頼可
GB20904-2007
Horizontal directional drilling - Safety operation rules
水平定向钻机 安全操作规程
GB 20904-2007 は現行の中国強制国家規格です：Horizontal directional drilling - Safety operation rules。 業界：電子。テーマ：製品安全。 施行日：2007年10月1日。
適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。
コンプライアンス概要
この概要は現在英語のみで提供しています。
適用範囲
Applies to horizontal directional drilling machines defined in JB/T 10548. This standard is mandatory for all manufacturers and operators of HDD equipment in China. It covers general requirements, operating conditions, and safety procedures before, during, and after operation.
技術要求
Specifies mandatory requirements for operator qualifications, requiring specialized training and familiarity with the equipment. Operators must wear insulating shoes, safety helmets, and insulating gloves. Details strict criteria for drill pipe maintenance and retirement. Drill pipes must be discarded if surface wear exceeds 15% of wall thickness, or if local bending exceeds 5mm per 500mm length. Friction-welded drill pipes require periodic flaw detection at the welds. Defines operating environment limits, specifically an ambient temperature range of -0°C to +40°C. It also mandates the installation of grounding protection devices as per the manual.
試験方法
Involves pre-operation checks of hydraulic and electrical systems, calibration of the directional system, and testing of emergency stop switches. Post-operation requires visual inspection of reamer welds, splitter connecting pins, and drill tool threads for cracks or wear.
よくある質問
What products are regulated under GB 20904-2007?
It regulates horizontal directional drilling machines as specified in JB/T 10548.
What are the mandatory clauses in GB 20904-2007?
Clauses 3.1, 3.4, 3.12, 3.13a)~3.13c), and 3.17 are mandatory, covering operator training, PPE, drill pipe inspection, and grounding.
What are the environmental operating limits?
The standard specifies that the working environment temperature must be between -0°C and +40°C.
The summary above provides a high-level overview of GB 20904-2007. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20904-2007 today to access all detailed parameters, tables, and testing procedures.
適用のヒント
- 種別
- 安全
- CCS
- P97
- ICS
- 53.100
- 所管部門
- Ministry of Industry and Information Technology
- 技術委員会
- Ministry of Industry and Information Technology