{
  "Config Version": "2.0.3",
  "Default RuleSet": "default",
  "Configuration Options": {
    "handleDamage": true,
    "useZones": false
  },
  "Mappings": {
    "default": "default"
  },
  "Schedule": {
    "enabled": false,
    "useRealtime": false,
    "broadcast": false,
    "entries": []
  },
  "RuleSets": [
    {
      "name": "default",
      "enabled": true,
      "defaultAllowDamage": false,
      "flags": "AuthorizedDamage,HumanNPCDamage, LockedBoxesImmortal, LockedDoorsImmortal, SamSitesIgnorePlayers, TrapsIgnorePlayers, TurretsIgnorePlayers",
      "rules": [
        "anything can hurt dispensers",
        "anything can hurt resources",
        "anything can hurt barricades",
        "anything can hurt traps",
        "anything can hurt heli",
        "anything can hurt npcs",
        "anything can hurt players",
        "npcs can hurt players",
        "nothing can hurt ch47",
        "nothing can hurt cars",
        "nothing can hurt mini",
        "nothing can hurt guards",
        "nothing can hurt ridablehorses",
        "cars cannot hurt anything",
        "mini cannot hurt anything",
        "ch47 cannot hurt anything",
        "scrapheli cannot hurt anything",
        "players cannot hurt players",
        "players cannot hurt traps",
        "guards cannot hurt players",
        "fire cannot hurt players",
        "traps cannot hurt players",
        "highwalls cannot hurt players",
        "barricades cannot hurt players",
        "mini cannot hurt mini"
      ]
    }
  ],
  "Allow Killing Sleepers": false,
  "Entity Groups": [
    {
      "name": "barricades",
      "members": "Barricade, icewall, GraveYardFence",
      "exclusions": "barricade.concrete, barricade.sandbags, barricade.metal, barricade.stone, barricade.wood, barricade.woodwire"
    },
    {
      "name": "dispensers",
      "members": "BaseCorpse, HelicopterDebris, PlayerCorpse, NPCPlayerCorpse, HorseCorpse",
      "exclusions": ""
    },
    {
      "name": "fire",
      "members": "FireBall, FlameExplosive, FlameThrower, BaseOven, FlameTurret, rocket_heli_napalm, napalm, oilfireball2",
      "exclusions": ""
    },
    {
      "name": "guards",
      "members": "bandit_guard, scientistpeacekeeper, sentry.scientist.static",
      "exclusions": ""
    },
    {
      "name": "heli",
      "members": "BaseHelicopter",
      "exclusions": ""
    },
    {
      "name": "highwalls",
      "members": "SimpleBuildingBlock, wall.external.high.ice, gates.external.high.stone, gates.external.high.wood",
      "exclusions": ""
    },
    {
      "name": "ridablehorses",
      "members": "RidableHorse",
      "exclusions": ""
    },
    {
      "name": "cars",
      "members": "BasicCar, ModularCar, BaseModularVehicle, BaseVehicleModule, VehicleModuleEngine, VehicleModuleSeating, VehicleModuleStorage, VehicleModuleTaxi, ModularCarSeat",
      "exclusions": ""
    },
    {
      "name": "mini",
      "members": "MiniCopter",
      "exclusions": ""
    },
    {
      "name": "scrapheli",
      "members": "ScrapTransportHelicopter",
      "exclusions": ""
    },
    {
      "name": "ch47",
      "members": "ch47.entity",
      "exclusions": ""
    },
    {
      "name": "npcs",
      "members": "ch47scientists.entity, BradleyAPC, HTNAnimal, HTNPlayer, HumanNPC, NPCMurderer, NPCPlayer, Scientist, ScientistNPC, Zombie, TunnelDweller",
      "exclusions": ""
    },
    {
      "name": "players",
      "members": "BasePlayer",
      "exclusions": ""
    },
    {
      "name": "resources",
      "members": "ResourceEntity, TreeEntity, OreResourceEntity, LootContainer",
      "exclusions": "hobobarrel.deployed"
    },
    {
      "name": "samsites",
      "members": "sam_site_turret_deployed",
      "exclusions": "sam_static"
    },
    {
      "name": "traps",
      "members": "AutoTurret, BearTrap, FlameTurret, Landmine, GunTrap, ReactiveTarget, TeslaCoil, spikes.floor",
      "exclusions": ""
    }
  ]
}​

Apparently, it's only electrical wiring and it's anything explosive doing the damage. F1 grenades, satchels, c4, HV rockets .....