行業(yè)標(biāo)準(zhǔn)：GB 2320.3-1985 耐張線夾(液壓型).pdf

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1、中華人民共和國國家標(biāo)準(zhǔn)耐張線夾(液壓型)UDC621.315.6GB2320.3—85Strainclamp(hydraulictype)國家標(biāo)準(zhǔn)局1985-01-23發(fā)布1985-12-01實(shí)施1適用范圍本標(biāo)準(zhǔn)適用于架空電力線路和變電所在耐張桿塔上固定鋼芯鋁絞線的耐張線夾。2型式與尺寸2.1耐張線夾為NY型。2.2耐張線夾主要尺寸應(yīng)符合下圖及下表的規(guī)定：mm適用導(dǎo)線型號外dd1d2ll1l2l3φ1φ2型號徑NY-240/30LGJ-240/3021.6016183808523.07.9NY-240/40L

2、GJ-240/4021.663616183901059510023.08.7NY-240/55LGJ-240/5522.40201841011524.010.3NY-300/15LGJ-300/1523.011416360956024.55.7NY-300/20LGJ-300/2023.434014183801057011025.06.5NY-300/25LGJ-300/2523.7614184108025.57.3NY-300/40LGJ-300/4023.9416184409525.58.7NY-300/

3、50LGJ-300/5024.2640181841010510511026.09.6NY-300/70LGJ-300/7025.2042222045014013027.011.5NY-400/20LGJ-400/2026.9114184001057028.56.5NY-400/25LGJ-400/2526.6414184101058028.57.3NY-400/35LGJ-400/3526.824516204201409028.58.2NY-400/50LGJ-400/5027.632020450140110

4、12029.59.9NY-400/65LGJ-400/6528.00222248016012529.511.0NY-400/95LGJ-400/9529.1448262651018015031.013.2NY-500/35LGJ-500/3530.0016204501409031.58.2NY-500/45LGJ-500/4530.0052182046014010013031.59.1NY-500/65LGJ-500/6530.96222249016012532.511.0NY-630/45LGJ-630/4

5、533.60182249016010035.59.1NY-630/55LGJ-630/5534.3260202251016011515036.010.3NY-630/80LGJ-630/8034.82242655018014036.512.3NY-800/55LGJ-800/5538.40202656018011540.010.3NY-800/70LGJ-800/7038.5865222656018013017040.511.5NY-800/100LGJ-800/10038.98263059020015540

6、.513.7表中型號中字母及數(shù)字意義為：N——耐張；Y——壓縮；數(shù)字——適用導(dǎo)線的標(biāo)稱截面；分子表示鋁截面；分母表示鋼截面。2.3引流板螺栓孔尺寸按SD28—82《電力金具接線端子》的規(guī)定。3技術(shù)要求3.1耐張線夾一般技術(shù)條件應(yīng)符合GB2314—85《電力金具通用技術(shù)條件》的規(guī)定。3.2材質(zhì)與緊固件：a.耐張線夾鋁管按GB3190—82《鋁及鋁合金加工產(chǎn)品的化學(xué)成分》采用牌號不低于L32制造的擠壓鋁管，管材抗拉強(qiáng)度不低于78.4N/mm(78.4MPa)。鋁板按GB3193—82《鋁及鋁合金熱軋板》，采用牌號

7、不低于L3鋁板。2b.拉環(huán)按GB700—79《普通碳素結(jié)構(gòu)鋼技術(shù)條件》，采用抗拉強(qiáng)度不低于372.5N/mm(372.5MPa)鋼。c.耐張線夾鋼管按GB699—65《優(yōu)質(zhì)碳素結(jié)構(gòu)鋼鋼號和一般技術(shù)條件》，采用10號優(yōu)質(zhì)2碳素結(jié)構(gòu)鋼無縫鋼管或抗拉強(qiáng)度不低于372.5N/mm(372.5MPa)的鋼，硬度不大于布氏HB133。d.螺栓按GB5—76《六角頭螺栓(粗制)》。e.螺母按GB41—76《六角螺母(粗制)》。f.彈簧墊圈按GB93—76《彈簧墊圈》。g.墊圈按SD27—82《加厚大墊圈》。3.3鋼錨的鋼管

8、內(nèi)壁應(yīng)無鋅層。3.4耐張線夾握力應(yīng)不少于以下數(shù)值：NY-240/30型71.8kN；標(biāo)準(zhǔn)分享網(wǎng)www.bzfxw.com免費(fèi)下載NY-240/40型79.2kN；NY-240/55型97.0kN；NY-300/15型64.7kN；NY-300/20型71.9kN；NY-300/25型79.2kN；NY-300/40型87.6kN；NY-300/50型98.2kN；NY-300/70型121.6kN；