Brunswick Sync - Grounding Conductor - NEC 384-27; Extended Power Outage; Carpeting in Bowlers Area; Carpeting in Electronics Areas

Sync Pre-Installation 17
GROUNDING CONDUCTOR - NEC 384-27
The grounding conductor shall be permitted to pass through one or more sub panels without connection
to the panel board grounding terminal as permitted by Section 384-27 Exception, so as to terminate
directly at the applicable derived system or service grounding terminal.
EXTENDED POWER OUTAGE
The circuit breakers (electronic sub panel) must be clearly identied and should be left on at all times
under normal operation. If power is to be out for an extended period of time, it is recommended that
circuit breakers to the electronic equipment be turned off. When power is restored, transient voltages
could be induced into the equipment if circuit breakers are not off.
CARPETING IN BOWLER’S AREA
It is not recommended mounting consoles on carpeting. Carpeting may cause static which can be
induced into electronic equipment. If carpeting is necessary in the bowlers’ area, it is recommended that
anti-static type of carpeting be used.
CARPETING IN ELECTRONICS AREAS
It’s the Customer’s Responsibility: If carpeting is to be installed at the site, it must be a computer-grade
type which will generate no more than 2,000 to 3,000 volts of static discharge at 20% relative humidity
and a temperature of 22°C (72°F). If carpeting is already installed and is not of a computer-grade type,
it should be treated with an antistatic or anti-shock solution after it is cleaned. The frequency of these
treatments depends on the amount of oor trafc in the room. Raising the humidity level should also be
considered to control the generation of static electricity. Maintain a humidity level of 40-60% to control
the generation of static electricity.
ATMOSPHERIC CONDITIONS
It is important that the climate control is maintained throughout the center. Indoor humidity is a
large factor in lane conditions as well preventing static electricity. A relative level of 40% must be
maintained to obtain optimum characteristics and performance from all equipment. A minimum of
35% and a maximum of 50% is possible if the temperature is controlled and constant.