Added value: +{
+  "description": "rating_basis is3961, IS 1554-1 and IS 7098-1 (IS 3961 Parts 2 and 6), as the rating panel: three (a.c. three-phase, three single-core cables; default), single (a.c. single-phase: a single-core cable as one of two, a two-core cable itself) or dc (two single-core cables or one two-core cable; Part 2 Tables 9 to 12, Part 6 Tables 5 and 6). A single-core cable takes all three, a two-core cable single (its default) or dc, three to five cores three only; a circuit the cable does not take falls back to its first.",
+  "enum": [
+    "three",
+    "single",
+    "dc"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "rating_basis is3961, IS 1554-1 only: the PVC of cl. 4.1, A (general purpose, 70 °C, default) or C (heat resisting, 85 °C: IS 3961 Part 2 cl. 2 a, the 85 °C tables).",
+  "enum": [
+    "A",
+    "C"
+  ],
+  "type": "string"
+}

Previous value: -"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, screenLay (helical | interstices), insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists; with an HD 620 section that lays three single cores up (HD620-10E1, -10E2, -10I1, -10I2, -10I3 ...), bundle none | messenger | earth and cores 3 builds the bundle."New value: +"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, screenLay (helical | interstices), insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists; with an HD 620 section that lays three single cores up (HD620-10E1, -10E2, -10I1, -10I2, -10I3 ...), bundle none | messenger | earth and cores 3 builds the bundle; with IS9968-1, is9968 {kind, grade} picks the table and grade; with GOST1508, gostMark the mark."

Previous value: -"Any of the site's 15 languages for the answer's words (the sentence itself is read in English or Turkish)."New value: +"Any of the site's 15 languages for the answer's words (the sentence itself is read in any of them)."

Previous value: -"The cable in words, Turkish or English: voltage, cores, section, conductor metal, screen, sheath, watertightness, armour. What is not said takes a default, and the answer lists which."New value: +"The cable in words, any of the 15 site languages: voltage, cores, section, conductor metal, screen, sheath, watertightness, armour. What is not said takes a default, and the answer lists which."

Previous value: -"For cpc: {kind armour | core | separate (default the armour where the design has one), basis iec | bs, column tp70 | tp90 | ts90, section_mm2, metal Cu | Al (a separate conductor), system TN | TT, circuit final | distribution, u0_v (line to earth, default 230), ia_a (the current that operates the device in time)}."New value: +"For cpc: {kind armour | core | separate | conduit (a steel conduit or trunking) | bare (a bare conductor) (default the armour where the design has one), basis iec | bs, column tp70 | tp90 | ts90, section_mm2 (required for conduit and bare), metal Cu | Al (separate) or Cu | Al | steel (bare), condition visible | normal | fire (bare: Table 54.6 / A.54.6), system TN | TT | IT (IT: a second fault, 411.6.4), circuit final | distribution, current ac | dc (Table 41.1's d.c. columns), u0_v (line to earth, default 230), ia_a (the current that operates the device in time), or device (a BS 7671 fuse bs88-2 | bs88-3 | bs3036 | bs1362, or a circuit-breaker type B | C | D) with device_a (its rating: the Tables 41.2 to 41.4 Zs at U0 230 V), length_m (the route length: the cable's own R1 + R2 at its operating temperature against the largest Zs)}."

Previous value: -"For cpc: {ka (the fault current), seconds (default fault_s)}: the adiabatic check of the armour or protective conductor (IEC 60364-5-54:2011 Annex A, BS 7671 Tables 54.2 to 54.4) up to 1 kV."New value: +"For cpc: {ka (the fault current), seconds (default fault_s)}: the adiabatic check of the armour or protective conductor (IEC 60364-5-54:2011 Annex A, BS 7671 Tables 54.2 to 54.6) up to 1 kV."

Previous value: -"For ratings.current: how the cable is installed; the designer's defaults for what is not given (buried 0.8 m, 20 °C ground, 1.5 K·m/W, trefoil, alone). At 0.6/1 kV group, arrangement, clearance, trays and h3_pct give the IEC 60364-5-52 B.52.17 to B.52.21 (BS 7671 4C1 to 4C3) grouping and the E.52.1 harmonic factors. The answer lists the defaults used and the fields the cable's table does not read."New value: +"For ratings.current: how the cable is installed; the designer's defaults for what is not given (buried 0.8 m, 20 °C ground, 1.5 K·m/W, trefoil, alone). At 0.6/1 kV group, arrangement, clearance, trays and h3_pct give the IEC 60364-5-52 B.52.17 to B.52.21 (BS 7671 4C1 to 4C5) grouping and the E.52.1 harmonic factors; reel_drum puts a flexible cable on a reeling drum (NFPA 79 Table 12.7.3); restrained (buried or clamped) is read by ratings.short_circuit. The answer lists the defaults used and the fields the cable's table does not read."

Added value: +{
+  "description": "0.6/1 kV single-core cables in free air: method F with 3 loaded, trefoil (default) or flat (touching); method G, horizontal (default) or vertical.",
+  "enum": [
+    "trefoil",
+    "flat",
+    "horizontal",
+    "vertical"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "rating_basis au (AS/NZS 3008.1.1:2025 Tables 3.5 to 3.8): air (default), spaced, trefoil, conduit, buried or duct, the ones the design's cores take; buried and duct read ground_c (default 25), depth_m (default 0.5) and soil_k_m_per_w (default 1.2), the others air_c (default 40).",
+  "enum": [
+    "air",
+    "spaced",
+    "trefoil",
+    "conduit",
+    "buried",
+    "duct"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "0.6/1 kV, IEC 60364-5-52 Table 52.2: power (default), signal or electronic, which sets the smallest conductor (minimum in the answer when the design is below it).",
+  "enum": [
+    "power",
+    "signal",
+    "electronic"
+  ],
+  "type": "string"
+}

Previous value: -"IEC 60364-5-52 reference method, 0.6/1 kV IEC basis (Table B.52.1): A1 / B1 single-core in conduit, A2 / B2 multicore in conduit, C on a wall, D1 in ducts, D2 direct in the ground, E / F in free air."New value: +"IEC 60364-5-52 reference method, 0.6/1 kV IEC basis (Table B.52.1): A1 / B1 single-core in conduit, A2 / B2 multicore in conduit, C on a wall, D1 in ducts, D2 direct in the ground, E / F in free air, G single-core spaced one diameter in free air."

Previous value: -[
-  "A1",
-  "A2",
-  "B1",
-  "B2",
-  "C",
-  "D1",
-  "D2",
-  "E",
-  "F"
-]New value: +[
+  "A1",
+  "A2",
+  "B1",
+  "B2",
+  "C",
+  "D1",
+  "D2",
+  "E",
+  "F",
+  "G"
+]

Added value: +{
+  "anyOf": [
+    {
+      "const": 2,
+      "type": "number"
+    },
+    {
+      "const": 3,
+      "type": "number"
+    }
+  ],
+  "description": "0.6/1 kV single-core cables (not method G): a single-phase circuit, 2 loaded conductors, or three-phase, 3 (default); a two-core cable is always 2."
+}

Added value: +{
+  "description": "An HD 603 cable of more than four cores: the loaded cores (DIN VDE 0276-1000 Table 13); default 3.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Previous value: -"An Indian design (IS 1554-1, IS 7098-1, IS 7098-2, IS 694): iec (default, the IEC tables as for any design) or is3961. IS 1554-1 / IS 7098: the IS 3961 Part 2, 6 or 7 tables with their ambient, depth and soil factors (laying, formation, air_c default 40, ground_c default 30, depth_m default the depth of the part, soil_k_m_per_w default 1.5) and their group tables (group: circuits or multicore cables, one alone by default; in the ground or a duct spacing_mm, the clear distance between them, 0 touching, and tiers for multicore cables laid direct, Part 2 / 6 only; in air support tray (perforated), vertical or ladder, trays, and clearance oneDiameter for spaced multicore cables, else touching). IS 694: IS 3961 (Part 5) with is_method, phase (single-core), protection, air_c (default 40) and group (the circuits, cl. 4.2); flexible cables and cords take Table 5 with air_c and group only."New value: +"A 0.6/1 kV IEC design (not HD 603): iec (default, IEC 60364-5-52:2009), de (DIN VDE 0298-4:2013-06, the German tables of the same methods, its one differing cell named in override; no D2) or au (AS/NZS 3008.1.1:2025 with au_method; PVC not rated). An HD 620 S3:2023 Section 10-C design: iec (default, IEC 60502-2 Annex B with its factors) or hd620, the section's own Tables 7 to 10 (laying buried or air, formation for single cores: trefoil, or flat for flatTouching and flatSpaced) at the conditions of its clause 5 only (0.7 m, ground 20 °C, soil 1.0 / 2.5 K·m/W, load factor 0.7 in the earth; air 30 °C, load factor 1.0), since the section gives no conversion factors; no table for ducts. An Indian design (IS 1554-1, IS 7098-1, IS 7098-2, IS 694): iec (default, the IEC tables as for any design) or is3961. IS 1554-1 / IS 7098: the IS 3961 Part 2, 6 or 7 tables with their ambient, depth and soil factors (laying, formation, air_c default 40, ground_c default 30, depth_m default the depth of the part, soil_k_m_per_w default 1.5) and their group tables (group: circuits or multicore cables, one alone by default; in the ground or a duct spacing_mm, the clear distance between them, 0 touching, and tiers for multicore cables laid direct, Part 2 / 6 only; in air support tray (perforated), vertical or ladder, trays, and clearance oneDiameter for spaced multicore cables, else touching). IS 694: IS 3961 (Part 5) with is_method, phase (single-core), protection, air_c (default 40) and group (the circuits, cl. 4.2); flexible cables and cords take Table 5 with air_c and group only."

Previous value: -[
-  "iec",
-  "is3961"
-]New value: +[
+  "iec",
+  "is3961",
+  "hd620",
+  "de",
+  "au"
+]

Added value: +{
+  "description": "A flexible cable (class 5 or 6, or a cord) on a motor-driven reeling drum, as the rating panel: cylindrical (ventilated, wide flanges), radial-vent or radial-closed (spiral). amps becomes the rating on the drum, times the NFPA 79 (2024) Table 12.7.3 factor, whole amperes down; reel gives the factor, the DIN VDE 0298-4:2013-06 Table 27 factor beside it and the drum rules of 13.4.3.2.",
+  "enum": [
+    "cylindrical",
+    "radial-vent",
+    "radial-closed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "With reel_drum cylindrical: the layers wound, 1 to 5 (Table 12.7.3 gives factors for 1 to 4; DIN VDE 0298-4 Table 27 for 1 to 5). Default 1.",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}

Added value: +{
+  "description": "ratings.short_circuit: yes when the cable is buried directly, clamped or bent tighter than specified (IEC 60986 3.2.2, IS 16269 3.2.2): a thermoplastic insulation's (PVC, PE) short-circuit limits are taken 10 °C lower. Default no.",
+  "enum": [
+    "yes",
+    "no"
+  ],
+  "type": "string"
+}

Previous value: -"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, screenLay (helical | interstices), insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists."New value: +"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, screenLay (helical | interstices), insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists; with an HD 620 section that lays three single cores up (HD620-10E1, -10E2, -10I1, -10I2, -10I3 ...), bundle none | messenger | earth and cores 3 builds the bundle."

Added value: +{
+  "description": "IS 694 on IS 3961 (Part 5): clipped (default), enclosed (in conduit or trunking), defined (the defined conditions) or trefoil (single-core, three-phase only).",
+  "enum": [
+    "clipped",
+    "enclosed",
+    "defined",
+    "trefoil"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "IS 694 single-core on IS 3961 (Part 5): a single-phase (2 cables) or three-phase (3 or 4 cables, default) circuit.",
+  "enum": [
+    "single",
+    "three"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "IS 694 on IS 3961 (Part 5): close (default) or coarse excess current protection, which picks the Table 8 ambient row.",
+  "enum": [
+    "close",
+    "coarse"
+  ],
+  "type": "string"
+}

Previous value: -"An Indian design (IS 1554-1, IS 7098-1, IS 7098-2): iec (default, the IEC tables as for any design) or is3961, the IS 3961 Part 2, 6 or 7 tables with their ambient, depth and soil factors (laying, formation, air_c default 40, ground_c default 30, depth_m default the depth of the part, soil_k_m_per_w default 1.5)."New value: +"An Indian design (IS 1554-1, IS 7098-1, IS 7098-2, IS 694): iec (default, the IEC tables as for any design) or is3961. IS 1554-1 / IS 7098: the IS 3961 Part 2, 6 or 7 tables with their ambient, depth and soil factors (laying, formation, air_c default 40, ground_c default 30, depth_m default the depth of the part, soil_k_m_per_w default 1.5) and their group tables (group: circuits or multicore cables, one alone by default; in the ground or a duct spacing_mm, the clear distance between them, 0 touching, and tiers for multicore cables laid direct, Part 2 / 6 only; in air support tray (perforated), vertical or ladder, trays, and clearance oneDiameter for spaced multicore cables, else touching). IS 694: IS 3961 (Part 5) with is_method, phase (single-core), protection, air_c (default 40) and group (the circuits, cl. 4.2); flexible cables and cords take Table 5 with air_c and group only."

Added value: +{
+  "description": "IS 3961 (Part 2 / 6) Table 27 / 21: multicore cables laid direct in the ground in tiers (rating_basis is3961, group above 1).",
+  "enum": [
+    "yes",
+    "no"
+  ],
+  "type": "string"
+}

Added value: +{
+  "anyOf": [
+    {
+      "const": 2,
+      "type": "number"
+    },
+    {
+      "const": 3,
+      "type": "number"
+    }
+  ],
+  "description": "A North American flexible cord (NFPA 79 2024 Table 12.8.2 at 30 °C): 3 current-carrying conductors (column A, default) or 2 (column B); a cord of two conductors is always column B."
+}

Added value: +{
+  "description": "Type MV and URD (NFPA 70 2026, 315.60 Tables (C)(1) to (C)(20)): airIsolated, airTriplexed, conduitAir, duct (default), buried or buriedTriplexed; the tables the construction has. group picks the circuits of the table (duct 1, 3 or 6; buried 1 or 2); air_c (default 40) or ground_c (default 20) the ambient.",
+  "enum": [
+    "airIsolated",
+    "airTriplexed",
+    "conduitAir",
+    "duct",
+    "buried",
+    "buriedTriplexed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "anyOf": [
+    {
+      "const": 90,
+      "type": "number"
+    },
+    {
+      "const": 105,
+      "type": "number"
+    }
+  ],
+  "description": "Type MV and URD: the 90 °C (MV-90) or 105 °C (MV-105) column; default 90 for URD, 105 for MV-105."
+}

Added value: +{
+  "description": "An Indian design (IS 1554-1, IS 7098-1, IS 7098-2): iec (default, the IEC tables as for any design) or is3961, the IS 3961 Part 2, 6 or 7 tables with their ambient, depth and soil factors (laying, formation, air_c default 40, ground_c default 30, depth_m default the depth of the part, soil_k_m_per_w default 1.5).",
+  "enum": [
+    "iec",
+    "is3961"
+  ],
+  "type": "string"
+}

Previous value: -"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists."New value: +"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, screenLay (helical | interstices), insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists."

Previous value: -"For voltage_drop and sizing: {length_m (required), amps or kw (default the design's own rating), phases 1 | 3, volts, pf (0.85), temp_c (the insulation's normal temperature), hz, limit_pct (a Table G.52.1 row 3, 5, 6, 8 raised beyond 100 m, or an own limit; default 5), conduit pvc | al | steel (NEC wires, Chapter 9 Table 9)}. IEC 60364-5-52 Annex G, BS 7671 Table 4E4B or NEC Chapter 9 Table 9, and the smallest size by current, by drop and by both."New value: +"For voltage_drop and sizing: {length_m (required), amps or kw (default the design's own rating), phases 1 | 3, volts, pf (0.85), temp_c (the insulation's normal temperature), hz, limit_pct (a Table G.52.1 row 3, 5, 6, 8 raised beyond 100 m, or an own limit; default 5), conduit pvc | al | steel (NEC wires, Chapter 9 Table 9), formation touching | flat | spaced (single-core cables)}. IEC 60364-5-52 Annex G with the IEC 60287-1-1 a.c. resistance, BS 7671 Tables 4E4B, 4D4B, 4E3B, 4D3B or NEC Chapter 9 Table 9, and the smallest size by current, by drop and by both."

Previous value: -"For after_installation: a national variant of the tests after installation (HD620-10A, HD620-10C, HD620-10J, HD620-10M, HD620-10R, BS6622, BS7846, BS5467, HD603-3F, HD603-G); default the one the design's standard implies."New value: +"For after_installation: a national variant of the tests after installation (HD620-10A, HD620-10C, HD620-10J, HD620-10M, HD620-10R, BS6622, IS1255, BS7846, BS5467, HD603-3F, HD603-G); default the one the design's standard implies."

Added value: +{
+  "description": "IEC 60364-5-52 reference method, 0.6/1 kV IEC basis (Table B.52.1): A1 / B1 single-core in conduit, A2 / B2 multicore in conduit, C on a wall, D1 in ducts, D2 direct in the ground, E / F in free air.",
+  "enum": [
+    "A1",
+    "A2",
+    "B1",
+    "B2",
+    "C",
+    "D1",
+    "D2",
+    "E",
+    "F"
+  ],
+  "type": "string"
+}

Previous value: -"For cpc: {kind armour | core | separate (default the armour where the design has one), basis iec | bs, column tp70 | tp90 | ts90, section_mm2, metal Cu | Al (a separate conductor)}."New value: +"For cpc: {kind armour | core | separate (default the armour where the design has one), basis iec | bs, column tp70 | tp90 | ts90, section_mm2, metal Cu | Al (a separate conductor), system TN | TT, circuit final | distribution, u0_v (line to earth, default 230), ia_a (the current that operates the device in time)}."

Added value: +{
+  "additionalProperties": {},
+  "description": "For cpc: {kind armour | core | separate (default the armour where the design has one), basis iec | bs, column tp70 | tp90 | ts90, section_mm2, metal Cu | Al (a separate conductor)}.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": {},
+  "description": "For cpc: {ka (the fault current), seconds (default fault_s)}: the adiabatic check of the armour or protective conductor (IEC 60364-5-54:2011 Annex A, BS 7671 Tables 54.2 to 54.4) up to 1 kV.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Previous value: -"For ratings.current: how the cable is installed; the designer's defaults for what is not given (buried 0.8 m, 20 °C ground, 1.5 K·m/W, trefoil, alone). The answer lists the defaults used and the fields the cable's table does not read."New value: +"For ratings.current: how the cable is installed; the designer's defaults for what is not given (buried 0.8 m, 20 °C ground, 1.5 K·m/W, trefoil, alone). At 0.6/1 kV group, arrangement, clearance, trays and h3_pct give the IEC 60364-5-52 B.52.17 to B.52.21 (BS 7671 4C1 to 4C3) grouping and the E.52.1 harmonic factors. The answer lists the defaults used and the fields the cable's table does not read."

Added value: +{
+  "description": "0.6/1 kV in air: how the group lies (bunched, on a wall or ceiling, on perforated, vertical or unperforated trays, on ladders, spaced); default bunched.",
+  "enum": [
+    "bunched",
+    "wall",
+    "ceiling",
+    "perforated",
+    "vertical",
+    "unperforated",
+    "ladder",
+    "spaced"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "0.6/1 kV: touching (default), oneDiameter (multicore cables on an IEC tray), or the clearance in the ground between cables or ducts, m (0.125 to 1.0).",
+  "enum": [
+    "touching",
+    "oneDiameter",
+    "0.125",
+    "0.25",
+    "0.5",
+    "1.0"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "0.6/1 kV 4- and 5-core cables: the third-harmonic share of the phase current, % (IEC 60364-5-52 Table E.52.1).",
+  "type": "number"
+}

Added value: +"Any of the site's 15 languages for the answer's words (the sentence itself is read in English or Turkish)."

Previous value: -[
-  "en",
-  "tr"
-]New value: +[
+  "en",
+  "tr",
+  "de",
+  "nl",
+  "sv",
+  "fr",
+  "es",
+  "da",
+  "no",
+  "fi",
+  "it",
+  "ro",
+  "pl",
+  "cs",
+  "ru"
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "For voltage_drop and sizing: {length_m (required), amps or kw (default the design's own rating), phases 1 | 3, volts, pf (0.85), temp_c (the insulation's normal temperature), hz, limit_pct (a Table G.52.1 row 3, 5, 6, 8 raised beyond 100 m, or an own limit; default 5), conduit pvc | al | steel (NEC wires, Chapter 9 Table 9)}. IEC 60364-5-52 Annex G, BS 7671 Table 4E4B or NEC Chapter 9 Table 9, and the smallest size by current, by drop and by both.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": {},
+  "description": "North American wires: {ocpd_a (the overcurrent device; default from the ampacity), phase_min (250.122(B): the size before upsizing), install raceway | air, ambient_c, carrying, termination_c 60 | 75 | 90}: nec.ampacity (NEC 310.16) and nec.egc (Table 250.122).",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

Added value: +{
+  "description": "For after_installation: a national variant of the tests after installation (HD620-10A, HD620-10C, HD620-10J, HD620-10M, HD620-10R, BS6622, BS7846, BS5467, HD603-3F, HD603-G); default the one the design's standard implies.",
+  "type": "string"
+}

Added value: +{
+  "description": "Fault duration for ratings.short_circuit, s (default 1).",
+  "maximum": 5,
+  "minimum": 0.1,
+  "type": "number"
+}

Added value: +{
+  "description": "For ratings.current: how the cable is installed; the designer's defaults for what is not given (buried 0.8 m, 20 °C ground, 1.5 K·m/W, trefoil, alone). The answer lists the defaults used and the fields the cable's table does not read.",
+  "properties": {
+    "air_c": {
+      "type": "number"
+    },
+    "depth_m": {
+      "type": "number"
+    },
+    "formation": {
+      "description": "Single-core circuits.",
+      "enum": [
+        "trefoil",
+        "flatTouching",
+        "flatSpaced"
+      ],
+      "type": "string"
+    },
+    "ground_c": {
+      "type": "number"
+    },
+    "group": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "laying": {
+      "enum": [
+        "buried",
+        "duct",
+        "air"
+      ],
+      "type": "string"
+    },
+    "method": {
+      "description": "BS 7671 reference method (British LV cables).",
+      "enum": [
+        "C",
+        "E",
+        "D_direct",
+        "D_duct"
+      ],
+      "type": "string"
+    },
+    "soil_k_m_per_w": {
+      "type": "number"
+    },
+    "spacing_mm": {
+      "type": "number"
+    },
+    "support": {
+      "enum": [
+        "tray",
+        "ladder",
+        "vertical"
+      ],
+      "type": "string"
+    },
+    "trays": {
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    }
+  },
+  "type": "object"
+}

Previous value: -"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, insulation, sheath, watertight, armour}."New value: +"Instead of a sentence: {voltage: \"12/20\", cores: 3, section: 95, metal, screen, screenType, screenSection, insulation, sheath, watertight, armour}; add standard (an id from design_presets: HD620-10C, BS6724, UL-NMB, EN50525-2-21 ...) for that family's own build at the nearest voltage, size and count it lists."

Previous value: -"Files to include: xml, dxf, svg, csv, glb (base64)."New value: +"Files to include: xml, dxf, svg, csv, glb (base64), step (STEP AP214 text), pdf (datasheet, base64)."

Previous value: -[
-  "xml",
-  "dxf",
-  "svg",
-  "csv",
-  "glb"
-]New value: +[
+  "xml",
+  "dxf",
+  "svg",
+  "csv",
+  "glb",
+  "step",
+  "pdf"
+]