国产女人精品视频国产灰线,国产精品亚洲一区二区三区喷水

耐熱鋁合金絞線及耐熱鋼芯鋁合金絞線
耐熱鋁合金絞線及耐熱鋼芯鋁合金絞線

上一篇：0.6/1kV聚氯乙烯絕緣聚氯乙烯護套電力電纜下一篇：額定電壓0.6/1kV~ 3.6/6kV變頻電纜

詳情說明

B：耐熱鋁合金絞線及耐熱鋼芯鋁合金絞線
Thermal resistant aluminum alloy stranded conductors
and steel-reinforced aluminum alloy conductors.

本產(chǎn)品適用于架空電力線路及舊架空線路的改造。
The product is used in the field of aerial power line.

一、產(chǎn)品執(zhí)行標準 Manufacturing standard
本產(chǎn)品執(zhí)行企業(yè)標準。
This product is the enterprise standard 。

二、用途及特點Uses and charicteristicses:
適用于架空輸電線路，長期工作溫度可達150℃，在滿負荷條件下，其傳輸容量可比普通產(chǎn)品提高60%。
The product is used in aerial transmission line .Max. continuous operating temperature can be 150℃.The transmission capacity of this product increases 60% than normal one.

三、性能 Properties
1、相對導(dǎo)電率：58%IACS（20℃時電阻率不大于0.029726Ω.mm2/m）.
Relative conductance :58% IACS(Max.resistivity at 20℃: 0.029726Ω.mm2/m)
2、加熱至230℃，保溫1h，冷卻至室溫時，強度保持率不小于90%。
After heating to 230℃ for 1h ,and cooling to room temperature ,the tensile strength remained should not less than 90%.
3、線膨脹系數(shù)0.000023 1/℃
Longitudinal expansion coefficient 0.000023 1/℃
4、電阻溫度系數(shù)0.0039 1/℃
Temperature coefficient of resistance 0.000023 1/℃

四、產(chǎn)品型號 Types
NR LH   58   J
                        絞線；Stranded conductor
                        相對導(dǎo)電率58%； Relative conductance :58% IACS
                        鋁合金；Aluminum alloy
                        耐熱；Thermal resistan

NR LH   58   GJ
                        鋼芯絞線；Steel –reinforced stranded conductor
                        相對導(dǎo)電率58%； Relative conductance :58% IACS
                        鋁合金；Aluminum alloy
                        耐熱；Thermal resistant

五、產(chǎn)品的主要技術(shù)性能及規(guī)格Size and main technical performance of the product
1、耐熱鋁合金圓線應(yīng)符合《導(dǎo)電率58%IACS耐熱鋁合金圓線》的規(guī)定。
Thermal resistant aluminum alloy round wire should be in accordance with the standard《Thermal resistant Aluminum Alloy Round Wire of Relative Conductance 58% IACS》.
2、鍍鋅鋼絲應(yīng)符合GB/T 3428《鋼芯鋁絞線用鍍鋅鋼絲》的規(guī)定。
Galvanized steel wire should be in accordance with the standard GB/T3428《Galvanized steel wire which is used in Aluminum stranded conductors steel-reinforced 》.
3、耐熱鋁合金絞線的主要技術(shù)性能及規(guī)格（表5-1）
Size and main technical performance of the product for thermal resistant aluminum alloy stranded conductor（Table 5-1）.

表5-1 Table 5-1

標稱截面 Normal cross-section mm2	結(jié)構(gòu)（根數(shù)/直徑） Construction (No/diameter) mm	計算截面 Calculated cross-sectional area mm	外徑 Outer diameter mm	20℃直流電阻不大于 DC.resistance at 20℃ ≯ Ω/km	計算拉斷力 Calculated breaking load N	計算重量 Calculate d weight kg/km	交貨長度（不小于） Delivery Length ≮ m
35	7/2.50	34.36	7.50	0.8763	5125	94.2	2000
50	7/3.00	49.48	9.00	0.6085	7380	135.7	1500
75	7/3.60	71.25	10.80	0.4226	10289	195.4	1250
95	7/4.16	95.14	12.48	0.3165	13287	260.9	1000
120	19/2.85	121.21	14.25	0.2496	18079	334.0	1500
150	19/3.15	148.07	15.75	0.2043	21381	408.0	1250
185	19/3.50	182.80	17.50	0.1655	26396	503.7	1000
210	19/3.75	209.85	18.75	0.1442	30302	578.2	1000
240	19/4.00	238.76	20.00	0.1267	33343	657.9	1000
300	37/3.20	297.57	22.40	0.1019	42969	821.6	1000
400	37/3.70	397.83	25.90	0.07622	57447	1098.5	1000
500	37/4.16	502.90	29.12	0.06030	70230	1388.6	1000
630	61/3.63	631.30	32.67	0.04803	86362	1746.8	800
800	61/4.10	805.36	36.90	0.03765	106549	2228.4	800

88国产精品视频一区二区三区,人人爽人人爽人人片Av,永久免费毛片在线播放,国产在线精品一区在线观看