CEI EN 50411-2-10

Product definition

This specification contains the dimensional, optical, mechanical
and environmental performance requirements of a fully installed
splice closure for use in optical distribution networks at ground
level (category G) in order for it to be categorised as an EN
standard product. This type of sealed closure is intended for easy
and/or frequent opening and closing in FTTH distribution and drop
cable networks.

NOTE The sealing performance requirements and test severities of
these closures are selected to obtain an IP 67 intrusion protection
performance as defined in EN 60529.

Operating environment

The tests selected combined with the severity and duration are
representative of an outside plant for ground level environment
defined by EN 61753-1, category G: ground level. This corresponds
with: – operating temperature range: -40 °C to +65 °C; – direct
exposure to non weather protected outside plant conditions; –
deployment at ground level up to 3 metres above ground level; –
additionally to the category G environment, a deployment till 1
metre below ground level is added. Direct buried applications are
allowed, however additional protection will be required when the
locations are intended for passage of cars or other heavy
vehicles.

Reliability

Whilst the anticipated service life expectancy of the product in
this environment is 20 years, compliance with this specification
does not guarantee the reliability of the product. This should be
predicted using a recognised reliability assessment programme.

Quality assurance

Compliance with this specification does not guarantee the
manufacturing consistency of the product. This should be maintained
using a recognised quality assurance programme.

Allowed fibre and cable types

Although the performance tests are carried out on test samples
containing dispersion unshifted single mode fibre (see Annex A),
the closure, once tested according to this product specification,
will be also suited for other fibre types like dispersion shifted,
non-zero dispersion shifted and multimode fibres.

This closure standard allows both single mode and multimode
fibre to be used and covers IEC standard optical fibre cables with
their various fibre capacities, types and designs. This includes,
but is not limited to, optical fibre cable standards EN 60794-2
(indoor), EN 60794-3 (outdoor).