Standard No.:	GB/T 3048.4-2007
Chinese Name:	电线电缆电性能试验方法 第4部分:导体直流电阻试验
English Name:	Test methods for electrical properties of electric cables and wires—Part 4:Test of DC resistance of conductors
Professional Classification:	K13 Cable and its accessory
Professional Classification:	GB National Standard
ICS Classification:	29.060
Issued by:
Issued on:	1983-01-01
Implemented on:	2008-05-01
Status:	VALID
Replace:	GB/T3048.4-1994 Test methods for determining electrical properties of electric cables and wires-Measurement of D.C. resistance of conductors
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150 (USD)
Delivery:	via email in 1-3 business day

1 Scope
This part of GB/T 3048 specifies the test equipment, sample preparation, test procedures, test results, calculation and test records of DC resistance of conductors.
The test methods specified in this part are applicable to measure the DC resistance of electric wire and cable conductors. The measurement range is:
——Double bridge: (2 × 10-5 ~ 09.9)Ω;
——Wheatstone bridge: 1Ω ~ 100Ω or above.
The test methods specified in this part are not applicable to measure the DC resistance of assembled electric wires and cables.
This part shall be used together with GB/T 3048.1.
2 Normative References
The provisions of the following documents which, through reference in this part of GB/T 3048, constitute provisions of this part. For dated reference, subsequent amendments to (excluding correction contents), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.