{
  "node": {
    "id": "term:ip-rating",
    "type": "Term",
    "label": "IP rating",
    "properties": {
      "id": "ip-rating",
      "name": "IP rating",
      "aka": [
        "ingress protection"
      ],
      "section": "topic-pack",
      "definition": "A two-digit code for how well an enclosure keeps out solids and water: the first digit for dust, the second for water. Battery packs are typically IP67, dust-tight and able to survive brief immersion.",
      "related": [
        "enclosure",
        "pack",
        "immersion-test"
      ],
      "url": "https://lemonergy.com/learn/glossary/ip-rating/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:2960",
      "source": "term:ip-rating",
      "target": "topic:topic-pack",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:2961",
      "source": "term:ip-rating",
      "target": "term:enclosure",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2962",
      "source": "term:ip-rating",
      "target": "term:pack",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2963",
      "source": "term:ip-rating",
      "target": "term:immersion-test",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-pack",
      "type": "Topic",
      "label": "Modules, packs and battery management",
      "properties": {
        "id": "topic-pack",
        "name": "Modules, packs and battery management",
        "lede": "From a single cell to a working battery system, and the electronics that keep it safe.",
        "context": "Make series/parallel architecture explicit.",
        "example": "Twelve 3.6 V, 5 Ah cells in 6s2p give 21.6 V, 10 Ah and 216 Wh nominally before other restrictions.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-architecture/",
        "lesson_label": "Open cell architecture"
      }
    },
    {
      "id": "term:enclosure",
      "type": "Term",
      "label": "Enclosure",
      "properties": {
        "id": "enclosure",
        "name": "Enclosure",
        "aka": [
          "battery housing",
          "battery tray"
        ],
        "section": "topic-pack",
        "definition": "The sealed case that carries the modules, protects them in a crash, keeps water out to an IP67 rating or better and vents gas in a thermal event. In many cars it is a structural part of the body.",
        "related": [
          "pack",
          "ip-rating",
          "cell-to-chassis",
          "venting",
          "gigacasting",
          "ul-94"
        ],
        "url": "https://lemonergy.com/learn/glossary/enclosure/",
        "mentions": []
      }
    },
    {
      "id": "term:pack",
      "type": "Term",
      "label": "Battery pack",
      "properties": {
        "id": "pack",
        "name": "Battery pack",
        "section": "topic-pack",
        "definition": "The complete battery as installed: modules or cells, the BMS, contactors and fuses, busbars, cooling, sensors and an enclosure. Its energy is the sum of its cells’ energies; its mass and volume are a good deal more.",
        "related": [
          "module",
          "bms",
          "battery-disconnect-unit",
          "thermal-management",
          "cell-to-pack-ratio",
          "enclosure"
        ],
        "lesson": "fundamentals/battery-basics/#cell-module-pack",
        "url": "https://lemonergy.com/learn/glossary/pack/",
        "mentions": []
      }
    },
    {
      "id": "term:immersion-test",
      "type": "Term",
      "label": "Water immersion test",
      "properties": {
        "id": "immersion-test",
        "name": "Water immersion test",
        "aka": [
          "salt-water immersion"
        ],
        "section": "topic-testing",
        "definition": "Submerging a pack in water or salt water for a set time to check sealing, insulation and the absence of fire or gas. Chinese GB standards include it, and R100 requires sealing to a water-protection rating or an equivalent test.",
        "related": [
          "ip-rating",
          "enclosure",
          "gb-38031",
          "un-r100-part-2"
        ],
        "url": "https://lemonergy.com/learn/glossary/immersion-test/",
        "mentions": [
          "un-r100"
        ]
      }
    }
  ]
}