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GB/T 17737.115-2018 English PDF

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US$119.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 17737.115-2018: Coaxial communication cables -- Part 1-115: Electrical test methods -- Test for regularity of impedance (pulse/step function return loss)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17737.115-2018	119	Add to Cart	2 days	Coaxial communication cables -- Part 1-115: Electrical test methods -- Test for regularity of impedance (pulse/step function return loss)	Valid

Similar standards

GB/T 17737.102 GB/T 17737.101 GB/T 17737.103 GB/T 17737.119 GB/T 17737.113 GB/T 17737.107

Basic data

Standard ID: GB/T 17737.115-2018 (GB/T17737.115-2018)
Description (Translated English): Coaxial communication cables -- Part 1-115: Electrical test methods -- Test for regularity of impedance (pulse/step function return loss)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L26
Classification of International Standard: 33.120.10
Word Count Estimation: 6,654
Date of Issue: 2018-03-15
Date of Implementation: 2018-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 17737.115-2018: Coaxial communication cables -- Part 1-115: Electrical test methods -- Test for regularity of impedance (pulse/step function return loss)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Coaxial communication cables--Part 1-115. Electrical test methods--Test for regularity of impedance(pulse/step function return loss) ICS 33.120.10 L26 National Standards of People's Republic of China Coaxial communication cable Part 1-115. Electrical test methods Impedance Uniformity (Pulse/Step Function Return Loss) Test Coaxialcommunicationcables-Part 1-115.Electricaltestmethods- (IEC 61196-1-115.2006, IDT) Published by.2018-03-15 2018-10-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released

Foreword

GB/T 17737 "Coaxial Communication Cable" has or plans to issue the following parts. --- Part 1. General rules, definitions and requirements; --- Part 1-100. General requirements for electrical test methods; --- Part 1-101 . Electrical test methods Conductor direct current resistance test ; --- Part 1-102 . Electrical test methods ; Insulation resistance test of dielectrics for cables ; --- Part 1-103 . Electrical test methods Capacitance test of cables ; --- Part 1-104 . Electrical test methods ; Capacitance stability test of cables ; --- Part 1-105. Electrical test methods for withstand voltage test of cable dielectrics; --- Part 1-101 . Electrical test methods Voltage withstand test of cable sheathing ; --- Part 1-107 . Electrical test methods Vibrating cable charge level (mechanically induced noise) test; --- Part 1-108. Electrical test methods Characteristic impedance, phase delay, group delay, electrical length and propagation speed test; --- Part 1-110 . Electrical test method continuity ; --- Part 1-111 . Electrical test methods Stability test for phase constants ; --- Part 1-112. Electrical test methods Return Loss (Impedance Consistency) test; --- Part 1-113 . Electrical test method attenuation constant test ; --- Part 1-114 . Electrical test methods Inductors ; --- Part 1-115. Electrical test method impedance uniformity (pulse/step function return loss) test; --- Part 1-116 . Electrical test methods TDR method measuring characteristic impedance ; --- Part 1-119 . Electrical test methods RF power rating ; --- Part 1-122. Electrical test methods - Cross-talk test between coaxial cables; This part is part 1-115 of GB/T 17737. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the translation method equivalent to the use of IEC 61196-1-115.2006 "coaxial communication cable Part 1-115. Electrical Test Party Uniform impedance (pulse/step function return loss) test. The Chinese documents that have a consistent correspondence with the normatively quoted international documents in this section are as follows. ---GB/T 17737.1-2013 "Coaxial telecommunication cable Part 1. General specification general rules, definitions and requirements" (IEC 61196-1. 2005, IDT); ---GB/T 17737.108-2018 Coaxial communication cables Part 1-108. Electrical test methods Characteristic impedance, phase delay Delay, group delay, electrical length and propagation speed tests (IEC 61196-1-108.2011, IDT). This section made the following editorial changes. --- For the convenience of use, number the formula. Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying these patents. This section was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part is under the jurisdiction of the National Standardization Technical Committee for High Frequency Cables and Connectors for Electronic Equipment (SAC/TC190). This section was drafted by the 23rd Institute of China Electronics Technology Corporation. The main drafters of this section. Yin Haicheng, Fang Xu and Tian Xin. Coaxial communication cable Part 1-115. Electrical test methods Impedance Uniformity (Pulse/Step Function Return Loss) Test

1 Scope

This part of GB/T 17737 applies to coaxial communication cables. It stipulates the use of time-domain methods for the measurement of coaxial cables for communication systems. Test method for impedance uniformity.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. IEC 61196-1 Coaxial Communication Cables Part 1. Generic Specification General, Definitions and Requirements (Coaxialcommunicationca- bles-Part 1.Generic specification-General,definitionsandrequirements) IEC 61196-1-108 Coaxial communication cables Part 1-108. Electrical test methods Characteristic impedance, phase delay, group delay, electrical Length and propagation speed tests (Coaxial communication cables - Part 1-108. Electrical test methods-Test for Characteristicimpedance,phaseandgroupdelay,electricallengthandpropagationvelocity) IEC 61196-1-113 Coaxial communication cables Part 1-113. Electrical test methods Attenuation constant test (Coaxialcommu- nicationcables-Part 1-113.Electricaltestmethods-Testforattenuationconstant)

3 Terms and definitions

The terms and definitions defined by IEC 61196-1 apply to this document. 4 Procedure A. Pulse Return Loss 4.1 Principle The pulse return loss test uses pulse signals to determine the return loss of a coaxial cable in the time domain. The pulse return loss shows the time to indicate the local heterogeneity of the characteristic impedance of the cable being tested. Usually, this program should use For the pulse width is a long cable to test. Note. This procedure also allows determination of the characteristic impedance of the cable end being tested. 4.2 Definition The pulse return loss αp (in dB) is defined as. Αp=20log Us Urx (1) In the formula. Us --- The voltage at the cable input sends the pulse; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 17737.115-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 17737.115-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 17737.115-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 17737.115-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.