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Crane of building tower type is special switch box
From;    Author:Stand originally

Crane of building tower type is special switch box
Application date: 200720040230.6
Application day: 2007.07.04
Make public (announcement) date: CN201113235
Make public (announcement) day: 2008.09.10
Application (patent) person: Nantong builds industry group Inc.
Invent (design) person: ; of Yang Jianming of; of Zhao Jianming of clear; of Wang Kui of; of Li Sixian of Xing Anzhong; at of school

Crane of building tower type is special book of requirement of switch box right
1, crane of building tower type is special switch box, its feature depends on: This device by protector of switch-disconnector, breaker, leakage of electricity, wiring giving a clue terminal board, earthing terminal board, the job 0 lines terminal board comprise, switch-disconnector sets the power source side of online road, protector of leakage of electricity sets the bear side of online road, breaker is set between switch-disconnector and protector of leakage of electricity.
2, the crane of building tower type that asks according to the right 1 is narrated is special switch box, its feature depends on: The switch-disconnector of the setting has apparently visible disjunction dot, can dump is extremely all at the same time.
3, the crane of building tower type that asks according to the right 1 is narrated is special switch box, its feature depends on: The breaker of the setting has short circuit protection and overload protection function.
4, the crane of building tower type that asks according to the right 1 is narrated is special switch box, its feature depends on: The protector of leakage of electricity of the setting is high speed instantaneous model.

Crane of building tower type is special switch box manual
What belong to technical domain
This practical and new-style involve crane of type of tower of a kind of building special switch box.

Setting technology
Crane of existing building tower type does not set special switch case commonly, and in tower crane coping electronic-controlled protector of short circuit of the setting inside box, overload, lack safeguard of leakage of electricity, its insufficient place depends on:
Encounter sudden incident, in the ground cannot seasonable dump, easy happening get an electric shock and mechanical accident. Or although special switch case is set in the ground, but setting of device of its electric equipment is unreasonable, switch-disconnector is nodded without apparently visible disjunction, cannot dump is extremely all at the same time, without protector of leakage of electricity, short circuit and overload protection are not full, when encountering the accident that use phone, cannot cut off the power source that use phone effectively.

Practical and new-style content
This practical and new-style purpose is for afore-mentioned problems and offerred crane of type of tower of a kind of building special switch box, the setting inside switch box has apparently visible disjunction dot, can dump is extremely all at the same time
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