APC PMG3XS-B, PMP3XS-B Precautions, Danger, Hazard Of Electric Shock, Explosion, Or Arc Flash

Precautions

Precautions

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

•Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E.

•This equipment must only be installed and serviced by qualified electrical personnel.

•Turn off all power supplying this equipment before working on or inside equipment.

•Always use a properly rated voltage sensing device to confirm power is off.

•Replace all devices, doors and covers before turning on power to this equipment.

•This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to connect this equipment to the power system ground.

Failure to follow these instructions will result in death or serious injury.

CAUTION

LOSS OF BRANCH CIRCUIT POWER/LOSS OF SURGE

SUPPRESSION

•Ensure that the branch circuit breaker or fuse trip characteristic has been coordinated with the overcurrent components inside the SPD (See Table 1).

•Perform periodic inspection of the SPD status indicator lights as part of the preventative maintenance schedule.

•Promptly service the SPD when an alarm state exists.

•Use dry contacts to signal an alarm state to the central supervisory system for unmanned, inaccessible, or critical installations.

•Use multiple SPDs to achieve redundancy for critical applications.

Failure to follow these instructions can result in injury or equipment damage.

At end-of-life conditions, Surge Protective Devices (SPDs) can lose their ability to block power system voltage and attempt to draw excessive current from the line. This SPD is equipped with overcurrent and overtemperature components that will automatically disconnect the surge suppression elements from the mains should the surge suppression elements reach end of life. Tripping of the branch circuit breaker or fuse feeding the SPD can occur. Mitigate the tripping of the branch circuit breaker or fuse feeding the SPD by coordinating the surge suppression elements with the branch circuits.

For the purposes of coordination, the SPD is equipped with overcurrent components that will limit the per phase I2t, Iapparent, Ip, and Ith values to those listed in table 1 when connected to a power system with a short-circuit current rating not exceeding 200,000 A.

4 Installation and Operation Manual