{
  "metadata": {
    "dataset_key": "jddg-2025-v9.0",
    "dataset_revision": "0.23",
    "topic_slug": "lightning",
    "topic_label_ja": "雷保護",
    "topic_label_en": "Lightning Protection",
    "requirement_count": 18,
    "summary_layer_version": "1.1",
    "terminology_policy_version": "1.1",
    "display_text_revision": "1.1"
  },
  "description_ja": "雷保護に関係するJDDG要件を、設計上の確認項目ごとに分類しています。",
  "focus_items_ja": [
    "雷保護システム",
    "雷リスク評価",
    "接地との連携",
    "図面・計算",
    "検査・確認"
  ],
  "related_terms": [],
  "requirements": [
    {
      "requirement_id": "JDDG25-14.8.1-R01",
      "section": "14.8.1",
      "title_ja": "パラメトリック設計",
      "title_en": "PARAMETRIC DESIGN",
      "summary_ja": "プロジェクト定義設計解析書（Project Definition Design Analysis）に、雷保護リスク評価を含めることを推奨しています。",
      "source_fact_en": "Project Definition Design Analysis should include a lightning protection risk assessment.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design",
        "design/parametric"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.8.1-R01/"
    },
    {
      "requirement_id": "JDDG25-14.8.2.3-R05",
      "section": "14.8.2.3",
      "title_ja": "設計解析書",
      "title_en": "DESIGN ANALYSIS",
      "summary_ja": "概念設計解析書（Concept Design Analysis）に、予備的な変圧器負荷解析および雷保護リスク解析を含めることを推奨しています。",
      "source_fact_en": "Concept Design Analysis should include preliminary transformer load analysis and lightning-protection risk analysis.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design",
        "design/concept"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.8.2.3-R05/"
    },
    {
      "requirement_id": "JDDG25-14.8.3.1-R05",
      "section": "14.8.3.1",
      "title_ja": "図面",
      "title_en": "DRAWINGS",
      "summary_ja": "中間設計（Intermediate Design）には、接地棒、接地導体、避雷突針、それらのサイズ・寸法・材料種別を示す雷保護・接地計画を含めることを求めています。",
      "source_fact_en": "Intermediate design is to include lightning-protection and grounding plans showing rods, conductors, air terminals, sizes, dimensions, and material types.",
      "strength": "mandatory",
      "strength_ja": "必須",
      "applicable_phases": [
        "design",
        "design/intermediate"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.8.3.1-R05/"
    },
    {
      "requirement_id": "JDDG25-14.8.3.3-R04",
      "section": "14.8.3.3",
      "title_ja": "設計解析書",
      "title_en": "DESIGN ANALYSIS",
      "summary_ja": "中間設計（Intermediate Design）の計算には、点別照度計算、雷保護リスク解析、ASHRAE 90.1照明エネルギー計算を含めることを推奨しています。",
      "source_fact_en": "Intermediate calculations should include point-to-point lighting calculations, lightning-protection risk analysis, and ASHRAE 90.1 lighting-energy calculations.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design",
        "design/intermediate"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.8.3.3-R04/"
    },
    {
      "requirement_id": "JDDG25-14.9.2-R01",
      "section": "14.9.2",
      "title_ja": "雷保護リスク分析",
      "title_en": "LIGHTNING PROTECTION RISK ANALYSIS",
      "summary_ja": "雷保護リスク解析により、対象建物または構造物に雷保護が必要か評価することを推奨しています。",
      "source_fact_en": "A lightning-protection risk analysis should assess whether the project building or structure requires lightning protection.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.9.2-R01/"
    },
    {
      "requirement_id": "JDDG25-14.9.2-R02",
      "section": "14.9.2",
      "title_ja": "雷保護リスク分析",
      "title_en": "LIGHTNING PROTECTION RISK ANALYSIS",
      "summary_ja": "日本では、米国の解析ソフトに日本メーカー機器データが不足し、現地で入手できる個人用保護具（PPE）も限定されるため、アークフラッシュ解析に実務上の難しさがあることを示しています。",
      "source_fact_en": "Lightning analysis should consider local flash density, building dimensions, and surrounding structures.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.9.2-R02/"
    },
    {
      "requirement_id": "JDDG25-14.9.2-R03",
      "section": "14.9.2",
      "title_ja": "雷保護リスク分析",
      "title_en": "LIGHTNING PROTECTION RISK ANALYSIS",
      "summary_ja": "別段の指示がない限り、NFPA 780評価で推奨された場合は雷保護システムを設けることを求めています。",
      "source_fact_en": "Unless otherwise directed, include a lightning-protection system when recommended by the NFPA 780 assessment.",
      "strength": "conditional_mandatory",
      "strength_ja": "条件付き必須",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.9.2-R03/"
    },
    {
      "requirement_id": "JDDG25-14.12.1-R01",
      "section": "14.12.1",
      "title_ja": "雷保護",
      "title_en": "LIGHTNING PROTECTION",
      "summary_ja": "雷保護設備は、独立したシステムとして設計することを推奨しています。",
      "source_fact_en": "Lightning protection should be designed as a stand-alone system.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1-R01/"
    },
    {
      "requirement_id": "JDDG25-14.12.1-R02",
      "section": "14.12.1",
      "title_ja": "雷保護",
      "title_en": "LIGHTNING PROTECTION",
      "summary_ja": "他システムの接地極は、地中で相互接続することを推奨しています。",
      "source_fact_en": "Ground electrodes of other systems should be interconnected below grade.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design",
        "installation"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1-R02/"
    },
    {
      "requirement_id": "JDDG25-14.12.1-R03",
      "section": "14.12.1",
      "title_ja": "雷保護",
      "title_en": "LIGHTNING PROTECTION",
      "summary_ja": "雷保護システムの構成部材を他のシステムと共用しないことを推奨しています。",
      "source_fact_en": "Lightning-protection components should not be shared with other systems.",
      "strength": "recommended_against",
      "strength_ja": "非推奨",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1-R03/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.1-R01",
      "section": "14.12.1.1",
      "title_ja": "施設の雷保護",
      "title_en": "LIGHTNING PROTECTION FOR FACILITIES",
      "summary_ja": "無保護構造物への落雷による損失確率を評価するため、NFPA 780に基づくリスク評価を行うことを推奨しています。",
      "source_fact_en": "A risk assessment per NFPA 780 is recommended to determine probability of loss from lightning striking an unprotected structure.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.1-R01/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.1-R02",
      "section": "14.12.1.1",
      "title_ja": "施設の雷保護",
      "title_en": "LIGHTNING PROTECTION FOR FACILITIES",
      "summary_ja": "雷保護システムを設計する際は、無線または衛星アンテナの有無を確認することを求めています。",
      "source_fact_en": "Presence of radio or satellite antennas is to be determined when designing the lightning-protection system.",
      "strength": "mandatory",
      "strength_ja": "必須",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.1-R02/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.2-G01",
      "section": "14.12.1.2",
      "title_ja": "弾薬製造施設",
      "title_en": "AMMUNITION PLANTS",
      "summary_ja": "弾薬工場の雷保護設計は、関係者（Stakeholder）から指示された場合、通常AMCR 385-100に適合することを示しています。",
      "source_fact_en": "Ammunition-plant lightning-protection design typically complies with AMCR 385-100 when directed by the Stakeholder.",
      "strength": "conditional_guidance",
      "strength_ja": "条件付き指針",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.2-G01/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.3-R02",
      "section": "14.12.1.3",
      "title_ja": "貯蔵タンク",
      "title_en": "STORAGE TANKS",
      "summary_ja": "壁厚が3/16 inchを超える貯蔵タンクでは、避雷突針は不要としています。",
      "source_fact_en": "Storage tanks with wall thickness greater than 3/16 inch do not require air terminals.",
      "strength": "not_required",
      "strength_ja": "要求なし",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.3-R02/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.4-R01",
      "section": "14.12.1.4",
      "title_ja": "その他の用途",
      "title_en": "OTHER APPLICATIONS",
      "summary_ja": "その他の施設では、Army TM 5-811-3の基準または関係者（Stakeholder）の指示に基づいて、一般に雷保護を設けることを求めています。",
      "source_fact_en": "Other facilities generally require lightning protection as determined by Army TM 5-811-3 criteria or when directed by the Stakeholder.",
      "strength": "conditional_mandatory",
      "strength_ja": "条件付き必須",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.4-R01/"
    },
    {
      "requirement_id": "JDDG25-14.12.1.5-R01",
      "section": "14.12.1.5",
      "title_ja": "電気系統の雷保護",
      "title_en": "LIGHTNING PROTECTION FOR ELECTRICAL SYSTEMS",
      "summary_ja": "電気設備の雷・サージ保護は、適切な接地と組み合わせた避雷器またはサージ抑制器によって行うのが一般的であると示しています。",
      "source_fact_en": "Lightning/surge protection is generally achieved with surge arresters or suppressors together with proper grounding.",
      "strength": "guidance",
      "strength_ja": "指針",
      "applicable_phases": [
        "design"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.1.5-R01/"
    },
    {
      "requirement_id": "JDDG25-14.12.2.3-R01",
      "section": "14.12.2.3",
      "title_ja": "雷・サージ保護",
      "title_en": "LIGHTNING AND SURGE PROTECTION",
      "summary_ja": "雷または電圧サージの影響を受ける施設・機器には、接地へ直接接続する低インピーダンス導体を設けることを求めています。",
      "source_fact_en": "Facilities and equipment subject to lightning or voltage surges require low-impedance conductors connected directly to ground.",
      "strength": "mandatory",
      "strength_ja": "必須",
      "applicable_phases": [
        "design",
        "installation"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.2.3-R01/"
    },
    {
      "requirement_id": "JDDG25-14.12.2.8-R08",
      "section": "14.12.2.8",
      "title_ja": "電子サブシステム性能要件",
      "title_en": "ELECTRONIC SUBSYSTEM PERFORMANCE REQUIREMENTS",
      "summary_ja": "雷保護を備える施設、弾薬庫、変圧器基礎、同様の電子機器施設には、接地リングを設けることを推奨しています。",
      "source_fact_en": "A ground ring should be provided around facilities with lightning protection and at munitions igloos, transformer pads, and similar electronics facilities.",
      "strength": "recommended",
      "strength_ja": "推奨",
      "applicable_phases": [
        "design",
        "installation"
      ],
      "quality_flag": "normal",
      "url": "https://www.ieee802.co.jp/jddg/2025/requirements/JDDG25-14.12.2.8-R08/"
    }
  ]
}