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煤礦用聚（氯）乙烯絕緣和聚氯乙烯護套電纜

PVC insulated and PVC sheathed ephone cables for use in mines

產品用途:本產品適用于固定敷設在礦井作通信干線及分線箱與機連接線

Scope of application:This product is fit for being laid in fixed placed in mines for the connection of communication trunk lines and junction box and ephones.

執行標準 Standards implemented: Q/3210HL29-2003

型號、名稱及使用范圍 Model descriptions and Use scope

型號 Model	名稱 Descriptions	使用范圍 Scope of application
MHVV（HUVV）	煤礦用聚氯乙烯絕緣阻燃聚氯乙烯護套電纜 PVC insulated fire retardant PVC sheathed ephone cables for use in mines	礦井中一般場合 General circumstances in mines
MHVVR（HUVVR）	煤礦用聚氯乙烯絕緣阻燃聚氯乙烯護套軟電纜 PVC insulated fire retardant PVC sheathed soft ephone cables for use in mines	礦井中分線盒、分線箱與機連接的場合 Where connection between junction box and ephone is required in mines
MHVV22（HUVV22）	煤礦用聚氯乙烯絕緣鋼帶鎧裝阻燃聚氯乙烯護套電纜 PVC insulated steel tape armored fire retardant PVC sheathed ephone cables for use in mines	礦井中承受一定沖擊力和壓力的場合 Where cables are under some impact and pressure in the mine
MHVV32（HUVV32）	煤礦用聚氯乙烯絕緣細圓鋼絲鎧裝阻燃聚氯乙烯護套電纜 PVC insulated fine round steel wire armored fire retardant PVC sheathed ephone cables for use in mines	礦井中垂直敷設或承受較大拉力的場合 Vertically laid or laid where the cables are under big impact and pull force in mines
MHYV（HUYV）	煤礦用聚乙烯絕緣阻燃聚氯乙烯護套電纜 PE insulated fire retardant PVC sheathed ephone cables for use in mines	礦井中一般場合 General circumstances in mines
MHYVR（HUYVR）	煤礦用聚乙烯絕緣阻燃聚氯乙烯護套軟電纜 PE insulated fire retardant PVC sheathed soft ephone cables for use in mines	礦井中一般場合 General circumstances in mines
MHYV22（HUYV22）	煤礦用聚乙烯絕緣鋼帶鎧裝阻燃聚氯乙烯護套電纜 PE insulated steel tape armored fire retardant PVC sheathed ephone cables for use in mines	礦井中承受一定沖擊力和壓力的場合 Where cables are under some impact and pressure in the mine
MHYV32（HUYV32）	煤礦用聚乙烯絕緣細圓鋼絲鎧裝阻燃聚氯乙烯護套電纜 PE insulated fine round steel wire armored fire retardant PVC sheathed ephone cables for use in mines	礦井中垂直敷設或承受較大拉力的場合 Vertically laid or laid where the cables are under big impact and pull force in mines

電纜結構示意圖

IIIustration of cable structure

使用特性 Service characteristics

電纜*允許工作溫度 Long-term service temperature of the cable conductor	-40℃-+50℃
電纜敷設溫度 Cable laying temperature	≥-10℃
+25℃時環境相對濕度 Environment relative humidity at 25℃	≤95%
電纜的小彎曲半徑 Minimun bending radius	MHVV MHYV MHVVR MHYVR 型電纜為電纜外徑的15倍，其它型號為外徑的20倍 15 times of the cable outer diameter of MHVV MHYV MHVVR MHYVR and 20times for the rest

電纜規格 Specifications

型號 Model	規格 Specifications	導體結構（根數/直徑）mm Conductor structure（number/diameter）
MHYVR MHVVR	1X2	1/0.28鍍錫銅線 +6/0.28鍍錫鋼線 1/0.28 tinned copper wire +6/0.28 tinned steel wire
MHVV22 MHVV32 MHYV22 MHYV32	2X2-100X2	1/0.5; 1/0.8
MHVV MHYV	1X2-100X2	1/0.5; 1/0.8

電纜主要技術性能 Major technical performances

1、電纜導體直流電阻及固有衰減

DC resistance of the conductor and Intrinsic attenuation

型號 Model	+20℃導體直流電阻（≤Ω/Km） DC resistance of conductor at 20℃	固有衰減（800Hz）≤db/Km Intrinsic attenuation
MHVVR MHYVR	260	4.63
MHVV22 MHVV32 MHYV22 MHYV32 MHVV MHYV	95（0.5mm）; 36.7（0.8mm）	1.32（0.5mm）; 0.95（0.8mm）

2、電纜其它技術性能 Other major technical performances

序號 Serial number	項目 Items		型號Model:MHVV MHVVR MHVV22 MHVV32	型號Model:MHYV MHYVR MHYV22 MHYV32
1	+20℃線芯導體直流電阻（Ω/Km） Line core DC resistance at 20℃		見上表 See above table
2	電纜固有衰減（≤dm/Km） Cable intrinsic attenuation		見上表 See above table
3	+20℃絕緣電阻（≥MΩ·Km） Insulating resistance at 20℃		110 ; 40（MHVVR）	3000 ; 110（MHYVR）
4	1min工頻交流電壓試驗 lmin power frequency alternating current pressure test	芯-芯core - core 芯-鎧裝層core - armoring	1000V不擊穿 1000V no breakdown	1500V不擊穿 1500V no breakdown
5	工作電容（≤μF/Km） Service capacity		0.12	0.06
6	單根垂直燃燒試驗 Single wire burning test		MT386
7	成束燃燒試驗 Group burning test		符合GB/T 18380.3標準中B類成束試驗要求 Conforms to GB/T18380.3 standard B types group test