Cut Sheet

Where service entrance cable is used as overhead service conductors
and code requires use of a service head, entrance caps shall be
installed; caps shall be cast metal type of suitable ferrous or
non-ferrous metal equipped with thermoset insulators and proper
knockout openings; caps when installed with proper drip loop must
ensure raintight conditions.
At the point where the service cable enters the building, a suitable
sill plate shall be provided; sill/wall plate shall be sealed to ensure
raintight conditions.
Suggested Specifications for
Service Entrance Fittings (Continued)
Terminating Fittings
Terminating fittings for service
entrance cable (Type SE or USE) or
underground feeder and branch —
circuit cable (Type UF) in locations
where exposed to intermittent or
constant moisture or in dry
locations and subjected to
mechanical strain shall be of
watertight strain relief type as
manufactured by Thomas & Betts,
series 2111 or 2116; fittings shall
be constructed of ferrous or non-
ferrous metal and equipped with
taper threaded hub, beveled
moisture resistant/oil resistant
synthetic rubber bushing.
In dry locations, nylon insulated
two screw type fittings of malleable
iron/steel construction electro zinc
plated inside outside, including
threads such as series 3302M
manufactured by Thomas & Betts
may be substituted.
Gaskets
Where service entrance cable
is terminated into a threadless
opening using hub type fittings,
a gasket shall be provided between
the outside of box or enclosure
and fitting shoulder; gasket shall be
of moisture resistant/oil resistant
synthetic rubber type adequately
protected by and permanently
retained to a metallic retainer as
manufactured by Thomas & Betts,
series 5262.
Supports
Service entrance cable shall be
adequately supported at intervals
enumerated in code using cable
straps conforming to requirements
of Canadian Standards Association
Standard CSA 22.2 No. 18; cable
straps shall be of malleable
iron/steel construction, hot-dipped
galvanized or electro zinc plated as
manufactured by Thomas & Betts,
series 1341.
Service Entrance Cable Fittings
Series 3302M
Two Screw Connector (Insulated)
Series 2116
Underground Feeder Cable Connector
Series 2111
Service Entrance Cable Connector
Series 1341
Cable Strap
Series 5262
Sealing Gasket
A-151
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com