electrical standards


Facility Cleaning & Maintenance

NEMA publishes guide for surge protective devices

The guide is the first in a new series intended to provide guidance on the evaluation, specification, and use of surge protective devices.
refrigerant standards

Facility Cleaning & Maintenance

NEMA revises standard for electrical equipment enclosures

The National Electrical Manufacturers Association (NEMA) has revised NEMA 250-2018 Enclosures for Electrical Equipment (1000 Volts Maximum).