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（ABB技术应用白皮书4） circuit-breakers inside LV switchboards 2008.pdf简介：

（ABB技术应用白皮书4） circuit-breakers inside LV switchboards 2008.pdf部分内容预览：

side switchboards

insideswitchboards

FcErotflateteminals for

T4250 Fixed

CJJ∕T 312-2020 城市综合管理服务平台技术标准insideswitchboards

T5400 Fixed

insideswitchboards

T6630 Fixed

T6630 Withdrawable

sideswitchboards

T6800 Withdrawable

nsideswitchboards

nsideswitchboards

7V1000 Withdrawable

nsideswitchboards

sideswitchboards

T7V1250 Withdrawable

nsideswitchboards

T7 S.H.L. 1600

sideswitchboards

10°℃ 20°℃ 30°℃ 40°℃ 50°℃ 60°℃C 70°C In [A] MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX 20 19 27 18 24 16 23 14 20 12 17 10 15 8 13 32 26 43 24 39 22 36 19 32 16 27 14 24 11 21 50 37 62 35 58 33 54 30 50 27 46 25 42 22 39 80 59 98 55 92 52 86 48 80 44 74 40 66 32 58 100 83 118 80 113 74 106 70 100 66 95 59 85 49 75 125 103 145 100 140 94 134 88 125 80 115 73 105 63 95 160 130 185 124 176 118 168 112 160 106 150 100 104 90 130 200 162 230 155 220 147 210 140 200 133 190 122 175 107 160 250 200 285 193 275 183 262 175 250 168 240 160 230 150 220

side switchboards

Technical Application Papers

Temperature X1 630 X11800 X11000 X11250 X11600 [C] % [A] % [A] % [A] % [A] % [A] 10 100 630 100 800 100 1000 100 1250 100 1600 20 100 630 100 800 100 1000 100 1250 100 1600 30 100 630 100 800 100 1000 100 1250 100 1600 40 100 630 100 800 100 1000 100 1250 100 1600 45 100 630 100 800 100 1000 100 1250 100 1600 50 100 630 100 800 100 1000 100 1250 100 1600 55 100 630 100 800 100 1000 100 1250 98 1570 60 100 630 100 800 100 1000 100 1250 95 1520

SACE Emax Ei

SACE Emax Ei

Temperature E1 800 E11000 E11250 E11600 ['C] % [A] % [A] % [A] % [A] 10 100 800 100 1000 100 1250 100 1600 20 100 800 100 1000 100 1250 100 1600 30 100 800 100 1000 100 1250 100 1600 40 100 800 100 1000 100 1250 100 1600 45 100 800 100 1000 100 1250 98 1570 50 100 800 100 1000 100 1250 96 1530 55 100 800 100 1000 100 1250 94 1500 60 100 800 100 1000 100 1250 92 1470 65 100 800 100 1000 99 1240 89 1430 70 100 800 100 1000 98 1230 87 1400

nsideswitchboards

Technical Application Papers

the rear verticalterminals

As it can be observedfromthe table,underthesame conditions in the busbar system, passing from bare busbarsto paintedbusbars there isan increase in the current carrying capacity which can reach also 15%.

hgcaactyotthecircu

alldity condition of tne table: amDient temperature 35°C, co rance between the central con

insideswitchboards

3.1 Main definitions of the parameters

Ratedpeakwithstandcurrentpk"

Ratedpeakwithstandcurrent

3Problemsconcerni

3.1.1 General prescriptions and informat

Technical Application Papers

3.2Prescriptions concerning the electrical

3.2.1 Main busbar systems

3.2.2 Distribution busbars and conduct

derived by the main busbars

derived by the main busbars

breakersinsideLVswitd

Technical Application Papers

shall undergo acceptable stresses

3.3.1 Minimum anchor distances for conductors

Technical Application Papers

ircuitabreakers inside IV

Technical Application Papers

3.3.3 Problems concerning the installation

nsulationdistancesforinstallationinmetallic

GB／T50760-2021 数字集群通信工程技术标准及条文说明.pdfSecondexample

Second example

Forms of internal separation

a Enclosure b Internal separation c Functional units including terminals for associated external conductors d Busbars, including distribution busbars

DL／T 1766.3-2019标准下载Degreesofprotection (iP code)

Codeletters(lnternationalProtection) IP First characteristic numeral (numerals 0 to 6, or letter X) Against ingress of solid foreign objects Second characteristic numeral (numerals 0 to 8, or letter X) Against ingress of water with harmful effects Additional letter (optional) (letters A, B, C, D): Againstaccesstohazardousparts Supplementary letter (optional) (letters H, M, S, W): Supplementary information

Technical Application Paper