Does anyone have a reference to safe practices for a service person working on the entrance protector ground for cable or phone systems? Recent situation where the electrical service neutral was open. Neutral current was returning via the common bonding between electrical system and cable system grounds. Troubleshooter for cable system removes ground wire from protector. Big mistake. Received shock and house now had no neutral return path. Fire ensued.
Looking for any work practices or safety standards that would support more care on the service persons part. Have talked to some folks who use clamp-on ammeter to look for just this problem but that's not universal it appears.