R U S Acceptance Procedures for Splice Closures
Item pl
f - Buried Splice Closure for
Fiber Optic Cables
In
addition to the requirements shown under the general listing procedures,
RUS requires the following information in a request for initial acceptance
of Splice Closures:
Item
1: Test data demonstrating compliance with RUS Bulletin 345-72,
RUS Specification for Filled Splice Closures, PE-74 (Bulletin can be
found at http://www.usda.gov/rus/telecom/publications/bulletins.htm). For fiber optic closures use the following
paragraph instead of section 5.3 of PE-74, cables insulation resistance
measurements:
Depending on the type of cable being used and application, measure the
splice loss of each fiber splice at 1330 or 1550 nanometers using EIA
standard EIA-455-20, "Measurement of Change in Optical Transmittance." (An Internet link for this publication is indicated below.) An increase in splice loss in any fiber splice in excess of 0.1
dB constitutes a failure.
Item
2: Product identification
information including catalog designations for each closure size and
type as well as catalog information describing the product. Identify whether closure is suitable for straight, branch, or
both types of splices.
Item
3: Instructions concerning
installation and use of each product. Include a splicing chart for each
size of closure indicating the quantity of pairs that may be spliced
using 25-pair splice modules and individual connectors for 26, 24, 22
and 19 AWG conductors. For fiber
optic closures indicate the quantity of fibers that may be spliced using
mechanical connectors and fusion splicing. Modules and connectors shall be RUS accepted. Maximum diameter
of cable for each closure shall be indicated.
Item
4: Quality assurance data
representative of several lots of production demonstrating the reliability
of an ongoing quality control program. If available, provide a copy of the Quality
Control Manual currently in use.
Item
5: A sample of each product
for acceptance.
Item
6: Submit 1 original and
6 photocopies of the required test data.
Questions
on acceptance of terminal blocks for use in pedestals should be addressed
to:
