7 CFR 1755.402 - Ground resistance measurements.

§ 1755.402 Ground resistance measurements.
(a) The resistance of the central office (CO) and the remote switching terminal (RST) ground shall be measured before and after it has been bonded to the master ground bar (MGB) where it is connected to the building electric service ground.
(b) The ground resistance of electronic equipment such as span line repeaters, carrier terminal equipment, concentrators, etc. shall be measured.
(c) Method of measurement. The connection of test equipment for the ground resistance measurement shall be as shown in Figure 1. Refer to RUS Bulletin 1751F-802, “Electrical Protection Grounding Fundamentals,” for a comprehensive discussion of ground resistance measurements.
(d) Test equipment. The test equipment for making this measurement is shown in Figure 1 as follows:
(e) Applicable results. (1) For the CO and RST, the resistance after the bond has been made to the MGB electric service ground shall not exceed 5 ohms. Where the measured ground resistance exceeds 5 ohms, the borrower shall determine what additional grounding, if any, shall be provided.
(2) For electronic equipment, the ground resistance shall not exceed 25 ohms. Where the measured ground resistance exceeds 25 ohms, the borrower shall determine what additional grounding, if any, shall be provided.
(3) When ground resistance measurements exceed the ground resistance requirements of paragraphs (e)(1) and (e)(2) of this section, refer to RUS Bulletin 1751F-802, “Electrical Protection Grounding Fundamentals,” for suggested methods of reducing the ground resistance.
(f) Data record. Results of the CO and RST ground resistance measurements shall be recorded. A suggested format similar to Format I, Outside Plant Acceptance Tests—Subscriber Loops, in § 1755.407 or a format specified in the applicable construction contract may be used. Results of the electronic equipment ground resistance measurements shall be recorded. A suggested format similar to Format II, Outside Plant Acceptance Tests—Trunk Circuits, in § 1755.407 or a format specified in the applicable construction contract may be used. Data showing approximate moisture content of the soil at the time of measurement, the temperature, the type of soil and a description of the test equipment used shall also be included.
(g) Probable causes for nonconformance. Refer to RUS Bulletin 1751F-802, “Electrical Protection Grounding Fundamentals,” and Telecommunications Engineering and Construction Manual (TE&CM) Section 810, “Electrical Protection of Electronic Analog and Digital Central Office Equipment,” for possible causes of nonconformance and suggested methods for corrective action.
[62 FR 23960, May 2, 1997]

Title 7 published on 2014-01-01

no entries appear in the Federal Register after this date.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
U.S. Code: Title 7 - AGRICULTURE

§ 901 - Short title

§ 902 - General authority of Secretary of Agriculture

§ 903 - Authorization of appropriations

§ 904 - Loans for electrical plants and transmission lines

§ 905 - Fees for certain loan guarantees

§ 906 - Funding for administrative expenses

§ 906a - Use of funds outside the United States or its territories prohibited

§ 907 - Acquisition of property pledged for loans; disposition; sale of pledged property by borrower

§ 908 - Repealed.

§ 909 - Administration on nonpolitical basis; dismissal of officers or employees for violating provision

§ 910 - Repealed.

§ 911 - Acceptance of services of Federal or State officers; application of civil service laws; expenditures for supplies and equipment

§ 911a - Repealed.

§ 912 - Extension of time for repayment of loans

§ 912a - Rescheduling and refinancing of loans

§ 913 - Definitions

§ 914 - Separability

§ 915 - Purchase of financial and credit reports

§ 916 - Criteria for loans

§ 917 - Prohibition on restricting water and waste facility services to electric customers

§ 918 - General prohibitions

§ 918a - Energy generation, transmission, and distribution facilities efficiency grants and loans in rural communities with extremely high energy costs

§ 918b - Acquisition of existing systems in rural communities with high energy costs

§ 918c - Rural and remote communities electrification grants

§ 1921 - Congressional findings

§ 6941 - Under Secretary of Agriculture for Rural Development

§ 6941a - Coordinator for Chronically Underserved Rural Areas

§ 6942 - Rural Utilities Service

§ 6943 - Rural Housing and Community Development Service

§ 6944 - Rural Business and Cooperative Development Service

§ 6945 - Rural Development Disaster Assistance Fund

Title 7 published on 2014-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 7 CFR 1755 after this date.

  • 2014-02-12; vol. 79 # 29 - Wednesday, February 12, 2014
    1. 79 FR 8327 - New Equipment Contract for Telecommunications and Broadband Borrowers
      GPO FDSys XML | Text
      DEPARTMENT OF AGRICULTURE, Rural Utilities Service
      Proposed rule.
      7 CFR Parts 1753 and 1755