PE管は高圧ケーブルを通すことができますか?

2025-08-19

建築および地方自治体のエンジニアリングでは、PEパイプは、耐食性、優れた柔軟性、および便利な建設の利点により、給排水、通信、およびその他の分野で広く使用されています。しかし、多くのユーザーは次のように質問します。PEパイプは高圧ケーブルの配線保護に使用できますか?プロのパイプラインソリューションプロバイダーとして、ADパイプは材料特性とエンジニアリング仕様の観点から詳細に分析します。

PEパイプが高圧ケーブルを貫通する実現可能性分析

PEパイプ(ポリエチレンパイプ)は優れた絶縁性能を備えており、その体積抵抗率は通常10Ω・cmを超えており、中低圧ケーブルの敷設に優れています。ただし、定格電圧が10 kV以上の高圧ケーブルの場合は、次の要因に焦点を当てる必要があります。

1絶縁強度:通常のPE管の電力周波数耐圧は約20〜30 kV/mmであり、基本的な絶縁要件を満たしていますが、高圧ケーブルの長期運転によって生成される部分放電は材料の老化を加速する可能性があります

2.熱安定性: PE管の連続使用温度は一般的に-40℃〜60℃であり、高圧ケーブルが過負荷になると、温度上昇がその許容範囲を超え、パイプの変形につながる可能性があります

3.機械的特性:高圧ケーブル敷設は通常、大きな牽引力を伴い、PE管が十分なリング剛性を有することを確認する必要があります(SN 8以上のグレードを選択することをお勧めします)

ADパイプの専門家の提案

業界標準の参加者として、ADパイプは高圧ケーブル保護プロジェクトで推奨さ電圧等級区分: 10 kV以下のケーブルは厚型PE電力管(例えば西暦MPP変性PE管)を選択でき、20 kV以上は専用電力ケーシング

2.敷設環境適応:直接埋設敷設時に土壌熱抵抗係数検査を行う必要があり、管材の作動温度が設計しきい値

3を超えないようにする。パイプの選択: GB/T 15558.1規格に準拠したPEパイプを選択するには、「電力工学ケーブル設計基準」GB 50217に従ってください。ADパイプが提供するΦ110-Φ200 mm仕様の電力パイプは、タイプテスト

2に合格しています。建設仕様:

パイプの上部埋設深さは0.7 m以上である必要があります。道路セクションはケーシング保護を追加する必要があります

-非掘削技術を使用する場合、牽引速度は1.5 m/min以内に制御されます

-インターフェイスはシールされている必要があります。溶接品質

3を確保するために、AD専用のホットメルトドッキングマシンを使用することをお勧めします。メンテナンス後:パイプラインの接地抵抗を定期的に検出します(10Ω未満である必要があります)。パイプに亀裂や変色がある場合は、時間内に交換してください11727798西暦配管は、110 kV以上の高圧工事では、MPP電力管やCP VC電力管などの特殊な管材を優先的に選択することをユーザーに思い出させます。具体的な工事案について疑問がある場合は、西暦配管技術サービスセンターに連絡して、カスタマイズされたソリューションを入手し、電力伝送システムの安全で安定した運行を確保することができます。


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