General Overview - ABB SafeGear Technical And Application Manual

T E C H N I C A L A N D A P P L I C AT I O N G U I D E
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General overview

SafeGear® 5/15 kV, up to 50 kA arc-resistant
switchgear
SafeGear is ABB's ANSI arc-resistant metal-clad switchgear line for short circuit currents
up to 50 kA and below at rated maximum voltages of 5 and 15 kV.
Certifications
SafeGear arc-resistant metal-clad switchgear is
seismic certified to IBC region D with importance
factor of 1.5. The manufacturing locations for
SafeGear are both ISO 9001 and 140001 certified.
SafeGear switchgear is available with UL label or
as a CSA certified lineup.
Applicable standards
SafeGear is built per IEEE C37.20.2 metal-clad
switchgear construction standards and tested
per IEEE C37.20.7 for arc-resistance.
Arc-resistant accessibility types
Per NFPA 70E 2015 edition, Table 130.7(c)(15)(A)
(a), arc-flash PPE is not required for arc-resistant
switchgear tested in accordance with IEEE
C37.20.7 for racking of circuit breakers, the
ground and test device or the voltage
transformers as long as the following is true:
clearing times are less than the rated arc-
duration with the prospective fault current not to
exceed the arc-resistant rating of the equipment,
the equipment is properly maintained and
installed, all equipment doors are closed and
secured, all covers are in place and secured, and
there is no evidence of impending failure. Please
see the NFPA 70E standard for more information
including definitions for properly installed,
properly maintained and evidence of impending
failure. For 2B accessibility types, the instrument
door is allowed to be open, but all other doors
must be closed and secured and all other covers
must be in place and secured.
Definitions are per IEEE C37.20.7 test guide.
• Type 2: Front, sides and rear protection with all
• Type 2B: Front, sides, rear and LV compartment.
• Type 2C: Front, sides, rear and between adja-
doors closed
LV compartment door can be open. All other
doors must be closed.
cent compartments and sections within a lineup
• Type 2BC: Front, sides, rear, LV compartment
and between adjacent compartments and sec-
tions within a lineup
• SafeGear is offered in accessibility types 2, 2B,
2C and 2 BC.
Construction
SafeGear is manufactured of hem bent, 14-gauge
galvanized steel for superior rust and scratch pro-
tection. All non-galvanized steel parts are treated
and painted ANSI 61 gray. SaferGear's modular
and bolted frame design with 19, 38, 57 or 95-inch
compartment sizes, provides highly flexible de-
sign configurations and faster field changes to
reduce downtime.
Outdoor enclosures
SafeGear can be supplied in outdoor shel-
tered-aisle enclosures or PDC (power distribution
center) enclosures.
Breakers used in the SafeGear platform
The SafeGear platform uses AMVAC and ADVAC
breakers. More details, including detailed ratings
tables, timing tables and power requirements can
be found in the AMVAC Breaker Technical Guide
(1VAL050601-TG) and ADVAC Breaker Technical
Guide (1VAL050501-TG).
Instrument transformers
SafeGear switchgear is available using SAB-1,
SAB-1D, SAB 2 and SAB-2D CTs. Up to four SAB-1
and SAB-2 CTs can be fitted per phase. Higher
accuracy SAB-1D and SAB-2D CTs are limited to
two CTs per phase. SAB-2 and SAB-2D current
transformers are used for 3000 A breakers. For
ground CT requirements, SafeGear is available
utilizing BYZ-S, BYZ-O or BYZ-L ground CTs. The
type of CT is chosen based on the necessary
window size required for cables and cable
bending.
For 5 kV applications, SafeGear switchgear uti-
5